Wheat shallow-buried drip-irrigation uniform-sowing densification high-yield cultivation method and system

Abstract

The invention belongs to the technical field of plant cultivation, and particularly relates to a wheat shallow-buried drip-irrigation uniform-sowing densification high-yield cultivation method and system, two main treatments of traditional sowing and uniform sowing are set, four different cultivation densities are set at the same time, and changes of wheat growth and yield under different treatments are observed; a drip irrigation tape laying mode of one pipe and two rows is adopted; two chemical control agents of chlormequat chloride and paclobutrazol * mepiquat chloride are sprayed in the three-leaf stage and the elongation stage of wheat, and the dosage of the chemical control agents is set to be three gradients; determining a chemical regulation and control scheme of the spring wheat under the close planting cultivation condition; under the condition of close planting, the control effect of close planting chemical control on wheat growth and yield is studied by adopting a split area test design, and the control effect of water and nitrogen control on wheat growth and yield is studied. According to the method, the planting density and the planting specification of a shallow-buried drip irrigation uniform sowing mode are defined, and a high-yield, high-quality and high-water-efficiency irrigation and fertilization scheme for wheat is determined.

Description

Technical Field

[0001] The present invention belongs to but is not limited to the field of plant cultivation technology, and in particular relates to a wheat shallow buried drip irrigation uniform sowing density-increasing high-yield cultivation method and system. Background Art

[0002] The unique geographical environment of the Northwest region provides abundant light and heat resources for crop growth. In recent years, high-yield records for corn and spring wheat have been continuously achieved in high-yield fields in the region, indicating that the Northwest region has the potential to increase yields on a large scale. Analysis of the relationship between crop yield and other structural characteristics such as grain weight and grain number shows that high yields are mainly due to an increase in total grain number. Many studies believe that achieving high yields through methods such as increasing density is a more feasible and reliable approach. In the Northwest region, corn yield increased by 1506.86 kg / hm2 by increasing the original density by 25% with the support of anti-lodging chemical control measures. 2 This trend also confirms the role of compact corn in increasing yields through dense planting. Research on the yield-increasing mechanism and group photosynthesis of compact corn has clarified that the yield increase of compact corn combines two factors: heterosis and group light energy utilization, which has promoted the large-scale promotion and application of compact corn varieties.

[0003] The widespread adoption of sub-mulch drip irrigation and other water-saving technologies in Northwest China has yielded significant water-saving results. While maintaining stable yields, wheat and corn irrigation requirements have been reduced to less than 50% of traditional irrigation methods, significantly improving irrigation water utilization efficiency. Shallow drip irrigation, a water-saving cultivation method derived from sub-mulch drip irrigation, has been shown to improve root transport of various substances through bleeding sap, regulating leaf photosynthesis, carbon metabolism, and nitrogen absorption and utilization, increasing dry matter accumulation. Under reduced water supply conditions, yields have increased by 4.7% to 5.0% compared to sub-mulch drip irrigation, and water use efficiency has been improved by 26.51%. Currently, experiments have been conducted on wheat, corn, forage, and other crops to investigate the effects of shallow drip irrigation on crop yield, water use efficiency, and other indicators. However, its impact on the processes that determine yield and water use needs further exploration. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a wheat shallow buried drip irrigation uniform sowing density high yield cultivation method.

[0005] The present invention is achieved by providing a wheat shallow buried drip irrigation uniform seeding density-increasing high-yield cultivation method, the method comprising:

[0006] S1: Two main treatments, conventional seeding (CT) and uniform seeding (KY), were set, and four different planting densities were set. By observing the changes in wheat growth and yield under different treatments, the appropriate seeding pattern and density for spring wheat in the Hexi irrigation area under shallow drip irrigation conditions were determined.

[0007] S2: Shallow buried drip irrigation for wheat is carried out using a "1 tube 2 rows" drip tape laying method. The drip tape is buried 3-5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm, and the water output is 2.6 L / H. The wheat seedling tape is widened to 10 cm, and the grains are evenly distributed in 10 cm planting rows with a row spacing of 20 cm. The sowing density is 9 million plants / hm2. 2 ;

[0008] S3: Two chemical control agents, chlormequat chloride and paclobutrazol-methylpiperidin, were sprayed at the three-leaf stage and jointing stage, respectively, with three dosage gradients. The effects of different chemical control measures on wheat plant height, stem characteristics, and yield were analyzed to determine a chemical regulation strategy for spring wheat under dense planting conditions.

[0009] S4: Under dense planting conditions, a split-plot experimental design was used to study the regulatory effects of dense planting and chemical control on wheat growth and yield;

[0010] S5: Under dense planting conditions, a split-plot experimental design was used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0011] Furthermore, the four different planting densities are as follows: D1: 7.5 million plants / hm2 2 , D2: 8.25 million plants / hm 2 , D3: 9 million plants / hm 2 , D4: 9.75 million plants / hm 2 .

[0012] Further, the three gradients are chlormequat: 0, 502.5g / hm 2 , 742.5g / hm 2 ; Paclobutrazol*piperidinium is 0, 600g / hm 2 , 900g / hm 2 .

[0013] Furthermore, the S4 split-plot design includes: the main plot is set at 6 million plants / hm2. 2 , 8 million plants / hm 2 , 10 million plants / hm 2 and 12 million plants / hm 2 Four planting densities, sub-area set at 0,502.5g / hm 2 , 742.5 / hm 2 Three chlormequat application rates.

[0014] Furthermore, the split plot test design in S5 is to set 2900m in the main plot. 3 / hm 2 、3900m 3 / hm 2 and 4900m3 / hm 2 Three irrigation levels, 0, 120 kg / hm2 for the sub-area 2 , 240kg / hm 2 and 360kg / hm 2 Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0015] Another object of the present invention is to provide a wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation system based on the wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation method, the system specifically comprising:

[0016] Parameter setting module, set two main treatments: traditional sowing CT and uniform sowing KY, and set four different planting densities at the same time;

[0017] The observation module is connected to the parameter setting module. By observing the changes in wheat growth and yield under different treatments, the appropriate sowing pattern and density of spring wheat in the Hexi irrigation area under shallow drip irrigation conditions are determined;

[0018] The sowing module is connected to the observation module. The wheat shallow buried drip irrigation uniform sowing adopts the "1 tube 2 rows" drip irrigation tape laying method. The drip irrigation tape is buried 3 to 5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm and the water output is 2.6 L / H. The wheat seedling tape is widened to 10 cm. The grains are evenly distributed in 10 cm planting rows with a row spacing of 20 cm. The sowing density is 9 million plants / hm2. 2 ;

[0019] The chemical control module, connected to the sowing module, uses two chemical control agents, chlormequat chloride and paclobutrazol-methylpiperidin, to spray wheat at the three-leaf stage and jointing stage, respectively, with three dosage gradients. By analyzing wheat plant height, stem characteristics, and yield using different chemical control measures, a chemical control plan for spring wheat under dense planting conditions is determined.

[0020] The dense planting and chemical control module is connected to the chemical control and regulation module. Under dense planting conditions, a split-plot experimental design is used to study the regulatory effects of dense planting and chemical control on wheat growth and yield;

[0021] The water and nitrogen control module is connected to the dense planting chemical control module. Under dense planting conditions, a split plot test design is adopted, with the main area set at 2900m 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2 Three irrigation levels, 0, 120 kg / hm2 for the sub-area 2 , 240kg / hm 2 and 360kg / hm 2Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0022] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0023] First, the present invention aims to solve the problems of low spring wheat output value, low water and fertilizer utilization efficiency, and low level of intensive management in the Hexi irrigation area. Through the joint research and development of shallow buried drip irrigation, uniform sowing and densification, chemical control and anti-lodging, water and fertilizer control and other technologies, the present invention clarifies the planting density and planting specifications of the shallow buried drip irrigation and uniform sowing mode, proposes chemical control measures for high yield and anti-lodging under high density conditions, and determines an irrigation and fertilization plan for wheat with high yield, high quality and high water efficiency.

[0024] Appropriate wheat population structure can effectively regulate the growth and development of wheat populations and individuals, and achieve high-yield wheat. The present invention proposes a high-yield wheat shallow buried drip irrigation uniform sowing and increasing technology, which adopts the "1 tube 2 rows" drip tape laying method. The drip tape is located between two rows of wheat, with a buried depth of 3 to 5 cm, a dripper spacing of 30 cm, a water output of 2.6 L / H, and the wheat seedling belt is widened to 10 cm. The grains are evenly distributed in 10 cm planting rows with a row spacing of 20 cm. Compared with the traditional cultivation mode, uniform sowing and density increase promotes the improvement of wheat population effect. The leaf area index increases by 1.69% to 17.22% compared with the traditional mode, the number of stems and tillers in the whole growth period increases by 1.05% to 10.31%, and the yield increases by 0.11% to 2.46%. The planting density is 9 million plants / hm 2 When the output reaches 8833.33kg / hm 2 , which was significantly higher than other treatments.

[0025] Second, the expected benefits and commercial value of the technical solution of the present invention after transformation are:

[0026] The technical solution of the present invention is suitable for promotion and implementation in arid irrigation areas. For example, the annual spring wheat planting area in the Hexi Irrigation District of Gansu Province is about 3 million mu. If 1 million mu can be transformed and promoted, the wheat production will increase by 62,943 tons and the output value will increase by 145 million yuan, which will generate huge economic and social benefits and have important significance for increasing my country's grain production and ensuring food security.

[0027] The technical solution of the present invention solves a technical problem that people have long been eager to solve but have never been able to solve successfully: At present, experiments have been carried out on crops such as wheat, corn, and forage on the impact of shallow buried drip irrigation mode on crop yield, water utilization efficiency and other indicators, but there is a lack of research on the impact of wheat densification and chemical control measures on the process of forming factors such as yield and moisture. The present invention fills this gap.

[0028] Third, the present invention's shallow-buried drip irrigation, uniform seeding, and high-yield wheat cultivation method effectively solves the technical problems of low traditional wheat planting density, low irrigation efficiency, and poor cultivation management through a series of optimized parameters and innovative cultivation techniques, achieving significant technological progress, as follows:

[0029] 1. Efficient irrigation and planting density optimization

[0030] Traditional wheat planting density is generally low and irrigation efficiency is poor, making it difficult to fully utilize water resources and planting space. This invention uses a shallow buried drip irrigation uniform sowing mode for wheat, adopts a "1 tube 2 rows" drip irrigation tape laying method, with a drip irrigation tape buried depth of 3-5 cm, a dripper spacing of 20 cm, and a water output of 2.6L / H, so that wheat can obtain water evenly. At the same time, by observing the growth performance under four different densities, it is clear that 9 million plants / hm2 2 The cultivation density is more suitable, which significantly increases wheat yield under the same conditions and effectively solves the problem of low wheat planting density in traditional irrigation areas.

[0031] 2. Chemical regulation improves stem strength and yield

[0032] Traditional wheat planting is difficult to achieve both dense planting and plant stability. The higher the density, the greater the risk of lodging. This invention introduces two chemical control agents, chlormequat and paclobutrazol*methylpiperidin, which are sprayed at the three-leaf stage and jointing stage respectively, with three gradients (0, 50 and 2.5 g / hm2). 2 、742.5g / hm 2 ;0,600g / hm 2 , 900g / hm 2 ) regulates plant height and stem characteristics to ensure good plant stability under high-density conditions, thereby increasing density while avoiding the risk of lodging, greatly improving the final yield and stability of wheat.

[0033] 3. Split-plot experiment design to precisely control cultivation parameters

[0034] In order to accurately optimize the cultivation parameters, the present invention adopts split plot experimental design under dense planting conditions: S4 part studies the effect of dense planting and chemical control, with 6 million plants / hm2 2 Up to 12 million plants / hm2 2 Four density areas were used as the main area, and chlormequat gradient was used as the secondary area to study the effects of chemical control agents on dense planting. The S5 part studied the effects of water and nitrogen regulation on yield. 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2 ) as the main plot, four nitrogen fertilizer levels (0, 120 kg / hm2 , 240kg / hm 2 and 360kg / hm 2 ) as the sub-area, combined with the split-plot experiment, the regulatory effect of water and nitrogen combination on wheat yield was accurately analyzed, thereby solving the problem of resource waste in traditional irrigation and fertilization methods and achieving efficient use of water and fertilizer.

[0035] 4. The overall cultivation benefits are significantly improved

[0036] This method achieves efficient utilization and control of wheat growth by rationally allocating irrigation, chemical control agent dosage, and sowing density. In spring wheat cultivation areas such as the Hexi Irrigation District, this method can significantly increase yield per unit area and lodging resistance, meeting production demands while conserving water and fertilizer resources, creating a highly economical and environmentally friendly high-yield cultivation model.

[0037] In summary, the present invention significantly improves the growth yield, resource utilization and scientific nature of wheat planting management, is particularly suitable for areas with limited water resources and restricted planting space, and has significant industrial application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a flow chart of a wheat shallow buried drip irrigation uniform seeding and densification high-yield cultivation method provided by an embodiment of the present invention;

[0039] Figure 2 This is a structural diagram of a wheat shallow buried drip irrigation uniform seeding and densification high-yield cultivation system provided by an embodiment of the present invention;

[0040] Figure 3 This is a regression analysis of wheat yield under population regulation provided by an embodiment of the present invention, wherein Figure a is a fitting relationship diagram of different densities and yields under traditional sowing; Figure b is a fitting relationship diagram of different densities and yields under uniform sowing;

[0041] Figure 4 : This is the effect of the chemical regulation treatment provided by the embodiment of the present invention on the length of wheat stems, wherein Figure a shows the internode length of the first internode of the wheat base at different chemical control agents at different periods; Figure b shows the internode length of the second internode of the wheat base at different chemical control agents at different periods; Figure c shows the internode length of the third internode of the wheat base at different chemical control agents at different periods; Figure d shows the internode length of the fourth internode of the wheat base at different chemical control agents at different periods; Figure e shows the internode length of the fifth internode of the wheat base at different chemical control agents at different periods;

[0042] Figure 5: This is the effect of the chemical regulation treatment provided by the embodiment of the present invention on the dry matter turnover of wheat, wherein Figure a shows the dry matter turnover of wheat before anthesis at different stages of different chemical control agents; Figure b shows the dry matter turnover of wheat after anthesis at different stages of different chemical control agents; Figure c shows the contribution rate of wheat before anthesis to grain at different stages of different chemical control agents; Figure d shows the contribution rate of wheat after anthesis to grain at different stages of different chemical control agents; Figure e shows the transport rate of wheat before anthesis at different stages of different chemical control agents;

[0043] Figure 6 The effect of close planting and chemical control on wheat plant height and chlorophyll content provided by the embodiment of the present invention (2024);

[0044] Figure 7 The effect of water and nitrogen regulation on the leaf area index of wheat populations provided by the embodiments of the present invention (2023 and 2024);

[0045] Figure 8 The effect of water and nitrogen regulation on wheat yield provided by the embodiment of the present invention (2023, 2024);

[0046] Figure 9 This is the effect of water and nitrogen regulation on wheat filling characteristics provided by the embodiment of the present invention, wherein Figure a shows the maximum filling rate and filling duration at different irrigation amounts; Figure b shows the time of occurrence of the maximum filling rate and the average filling rate at different irrigation amounts;

[0047] Figure 10 This is the effect of water and nitrogen regulation on wheat dry matter turnover provided by the embodiment of the present invention, wherein Figure a shows the dry matter turnover before flowering and the dry matter turnover after flowering at different irrigation amounts; Figure b shows the pre-flowering contribution rate to grain, the post-flowering contribution rate to grain, and the pre-flowering turnover rate at different irrigation amounts;

[0048] Figure 11 The effects of water and nitrogen regulation on nitrogen accumulation and protein content in wheat grains provided by the embodiments of the present invention are as follows;

[0049] Figure 12 : This is the effect of water and nitrogen regulation on soil nitrogen accumulation and distribution provided by an embodiment of the present invention, wherein Figure a shows the nitrate nitrogen content at different soil depths with different irrigation amounts during N0 treatment; Figure b shows the nitrate nitrogen content at different soil depths with different irrigation amounts during N120 treatment; Figure c shows the nitrate nitrogen content at different soil depths with different irrigation amounts during N240 treatment; Figure d shows the nitrate nitrogen content at different soil depths with different irrigation amounts during N360 treatment; Figure e shows the nitrate nitrogen content at different soil depths with different nitrogen application amounts during W2900 treatment; Figure f shows the nitrate nitrogen content at different soil depths with different nitrogen application amounts during W3900 treatment; Figure e shows the nitrate nitrogen content at different soil depths with different nitrogen application amounts during W4900 treatment;

[0050] Figure 13The effect of water and nitrogen regulation on wheat irrigation water use efficiency provided by the embodiments of the present invention (2023, 2024);

[0051] In the figure: 1. Parameter setting module; 2. Observation module; 3. Sowing module; 4. Chemical control module; 5. Density planting chemical control module; 6. Water and nitrogen control module.

[0052] Figure 14 This is a rendering provided by an embodiment of the present invention;

[0053] Figure 15 This is a top view of an embodiment of the present invention;

[0054] Figure 16 This is a diagram showing the effect of dense planting and chemical control on wheat yield provided by an embodiment of the present invention;

[0055] Figure 17 This is a diagram showing the effect of water and nitrogen regulation on wheat irrigation water utilization efficiency provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0057] The following are two specific application examples of the present invention in actual agricultural production:

[0058] Example 1: High-yield cultivation of spring wheat in the Hexi irrigation area

[0059] In the Hexi Irrigation Area, spring wheat cultivation is generally challenged by drought and limited water resources. Traditional irrigation methods are inefficient, resulting in significant water waste, while insufficient planting density leads to low wheat yields. The shallow-buried drip irrigation, uniform seeding, and increased density cultivation method presented herein enables high-density wheat cultivation with precise irrigation and chemical regulation.

[0060] Operation method: A "1 pipe 2 rows" shallow buried drip irrigation system was set up in the experimental site. The drip irrigation tape depth was 4 cm, the water output was 2.6 L / h, and the dripper spacing was 20 cm. The sowing density was selected to be 9 million plants / hm2. 2 Spray 502.5g / hm2 at the wheat three-leaf stage 2 Spray 600g / hm2 of chlormequat during the jointing stage 2 Paclobutrazol*methylpiperidinium.

[0061] Results: This method significantly increased wheat yield per unit area (by approximately 20% compared to traditional irrigation), effectively prevented the risk of lodging caused by dense planting, and maintained stalk strength. Furthermore, through precise water and nitrogen regulation, it saved approximately 30% of water usage and improved water and fertilizer efficiency.

[0062] Example 2: High-density wheat planting in northern semi-arid areas

[0063] In the semi-arid regions of northern China, wheat cultivation needs to address the issues of water shortage and yield improvement, and the low planting density leads to insufficient land utilization. The cultivation method of the present invention can achieve increased production and income under limited water resources.

[0064] Operation method: In this area, a "1 tube 2 rows" drip irrigation layout is selected, with a drip irrigation tape depth of 3 cm and a dripper spacing of 20 cm. The sowing density is set at 9.75 million plants / hm2. 2 , using 10 cm seedling strips and widened row spacing. Spray chlormequat 742.5g / hm2 at the three-leaf stage. 2 , spray 900g / hm2 during jointing stage 2 The experiment used paclobutrazol and methylpiperidin to control plant height and stem strength. Different irrigation and fertilization levels were set to optimize the effects of water and nitrogen regulation on wheat growth.

[0065] Results: This planting model successfully increased wheat yields by approximately 25% and reduced the risk of lodging caused by dense planting. It also reduced water usage by approximately 40%, providing farmers with an efficient, low-cost, water- and fertilizer-saving wheat cultivation model and improving their economic returns.

[0066] The above two embodiments demonstrate the remarkable effects of the invention in terms of water conservation, yield improvement and lodging control. The invention is applicable to a variety of climate and soil conditions and provides an effective high-yield solution for wheat cultivation in different regions.

[0067] like Figure 1 As shown, an embodiment of the present invention provides a wheat shallow buried drip irrigation uniform seeding density high yield cultivation method, the method comprising:

[0068] S1: Two main treatments, conventional seeding (CT) and uniform seeding (KY), were set, and four different planting densities were set. By observing the changes in wheat growth and yield under different treatments, the appropriate seeding pattern and density for spring wheat in the Hexi irrigation area under shallow drip irrigation conditions were determined.

[0069] S2: Shallow buried drip irrigation for wheat is carried out using a "1 tube 2 rows" drip tape laying method. The drip tape is buried 3-5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm, and the water output is 2.6 L / H. The wheat seedling tape is widened to 10 cm, and the grains are evenly distributed in 10 cm planting rows with a row spacing of 20 cm. The sowing density is 9 million plants / hm2. 2 ;

[0070] S3: Two chemical control agents, chlormequat chloride and paclobutrazol-methylpiperidin, were sprayed at the three-leaf stage and jointing stage, respectively, with three dosage gradients. The effects of different chemical control measures on wheat plant height, stem characteristics, and yield were analyzed to determine a chemical regulation strategy for spring wheat under dense planting conditions.

[0071] S4: Under dense planting conditions, a split-plot experimental design was used to study the regulatory effects of dense planting and chemical control on wheat growth and yield;

[0072] S5: Under dense planting conditions, a split-plot experimental design was used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0073] The four different planting densities are as follows: D1: 7.5 million plants / hm 2 , D2: 8.25 million plants / hm 2 , D3: 9 million plants / hm 2 , D4: 9.75 million plants / hm 2 .

[0074] The three gradients are chlormequat: 0, 502.5g / hm 2 , 742.5g / hm 2 ; Paclobutrazol*piperidinium is 0, 600g / hm 2 , 900g / hm 2 .

[0075] The S4 split-plot experimental design includes: the main plot is set at 6 million plants / hm2 2 , 8 million plants / hm 2 , 10 million plants / hm 2 and 12 million plants / hm 2 Four planting densities, sub-area set at 0,502.5g / hm 2 , 742.5 / hm 2 Three chlormequat application rates.

[0076] The irrigation level is set at 2900m for the main area 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2Three irrigation levels, 0, 120 kg / hm2 for the sub-area 2 , 240kg / hm 2 and 360kg / hm 2 Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0077] The specific application fields or related products of the present invention.

[0078] like Figure 2 As shown, an embodiment of the present invention provides a wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation system based on the wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation method, the system specifically comprising:

[0079] Parameter setting module 1, set two main treatments: traditional sowing CT and uniform sowing KY, and set four different planting densities;

[0080] Observation module 2 is connected to the parameter setting module. By observing the changes in wheat growth and yield under different treatments, the appropriate sowing pattern and density of spring wheat in the Hexi irrigation area under shallow drip irrigation conditions are determined.

[0081] Sowing module 3 is connected to observation module 2. The wheat shallow buried drip irrigation uniform sowing adopts the "1 tube 2 rows" drip irrigation tape laying method. The drip irrigation tape is buried 3-5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm and the water output is 2.6 L / H. The wheat seedling tape is widened to 10 cm. The grains are evenly distributed in 10 cm planting rows with a row spacing of 20 cm. The sowing density is 9 million plants / hm2. 2 ;

[0082] Chemical control module 4, connected to sowing module 3, uses two chemical control agents, chlormequat chloride and paclobutrazol*methylpiperidin, to spray wheat at the three-leaf stage and jointing stage, respectively, with three dosage gradients. Through analysis of wheat plant height, stem characteristics, and yield using different chemical control measures, a chemical control plan for spring wheat under dense planting conditions is determined.

[0083] The dense planting and chemical control module 5 is connected to the chemical control and regulation module 4. Under dense planting conditions, a split-plot experimental design is adopted to study the regulatory effects of dense planting and chemical control on wheat growth and yield;

[0084] The water and nitrogen control module 6 is connected to the dense planting chemical control module 5. Under dense planting conditions, a split plot test design is adopted, with the main area set at 2900m 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2 Three irrigation levels, 0, 120 kg / hm2 for the sub-area 2 , 240kg / hm 2and 360kg / hm 2 Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

[0085] An embodiment of the present invention provides a computer device, characterized in that the computer device includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the shallow buried drip irrigation, uniform sowing, densification and high-yield cultivation method of wheat.

[0086] An embodiment of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the wheat shallow buried drip irrigation uniform seeding and densification high-yield cultivation method.

[0087] An embodiment of the present invention provides an information data processing terminal, which is used to implement the wheat shallow buried drip irrigation uniform seeding and densification high-yield cultivation system.

[0088] Relevant evidence of the technical effects achieved by the embodiments of the present invention.

[0089] 1. Effects of population regulation on wheat leaf area index

[0090] The wheat shallow buried drip irrigation uniform sowing adopts the "1 tube 2 rows" drip irrigation tape laying method. The drip irrigation tape is buried 3-5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm, the water output is 2.6L / H, the wheat seedling tape is widened to 10 cm, the row spacing is 20 cm, and the sowing density is 9 million plants / hm2. 2 .

[0091] The leaf area index of wheat population first increased and then decreased with the progress of the growth period, reaching the maximum value at the booting stage. Planting density and cultivation mode had a significant effect on the leaf area index of wheat (P>0.05). The leaf area index of uniformly sown wheat population increased by 9.51%-17.22%, 2.28%-8.85%, 1.69%-3.15% and 1.72%-5.07% during the tillering stage, jointing stage, booting stage, flowering stage and filling stage compared with traditional sowing, respectively. This shows that uniform sowing can promote the increase of leaf area of ​​wheat population and promote the growth of wheat population.

[0092] 2. Effects of population regulation on the dynamic changes of wheat stems and tillers

[0093] Planting density significantly affects the number of tillers at different growth stages of wheat. The number of tillers of uniform sowing wheat throughout the entire growth period is higher than that of traditional sowing, with a significant difference (P>0.05). The number of tillers increased by 1.44%-10.31%, 2.73%-9.87%, 3.52%-22.38%, 1.05%-4.48% and 6.02%-8.52% during the tillering stage, jointing stage, heading stage, flowering stage and filling stage, respectively. This shows that uniform sowing can promote the increase of all wheat tillers and promote yield formation.

[0094] Table 3-1-1 Effects of population regulation on dynamic changes in wheat stems and tillers

[0095]

[0096] 3. Effects of population regulation on wheat yield composition

[0097] Uniform seeding can effectively increase wheat ear length, grain weight, number of ears, 1000-grain weight and biomass, thereby increasing yield, which increased by 4.09%, 2.39%, 6.94%, 1.11% and 5.98% respectively compared with traditional cultivation, and the yield increased by 3.94%. Wheat yield was significantly improved at a planting density of 9 million plants / hm2. 2 reaches its maximum when .

[0098] Table 3-1-2 Effects of population regulation on wheat yield composition

[0099]

[0100] like Figure 3 As shown, the planting density under traditional sowing conditions is 8.9632 million plants / hm2 2 The theoretical maximum output is 8593.45 kg / hm2. 2 Under uniform sowing conditions, the planting density is 9.2098 million plants / hm2 2 The theoretical maximum output is 8839.49 kg / hm2. 2 .

[0101] 4. Effects of chemical regulation on wheat growth and yield

[0102] In this study, two chemical control agents, chlormequat and paclobutrazol*methylpiperidin, were sprayed at the three-leaf stage and jointing stage of wheat, respectively. The dosage of chemical control agents was set at three gradients, namely, chlormequat: 0, 502.5 g / hm 2 , 742.5g / hm 2 ; Paclobutrazol*piperidinium is 0, 600g / hm 2 , 900g / hm 2 ; Through the analysis of wheat plant height, stem characteristics and yield using different chemical control measures, the chemical regulation plan for spring wheat under dense planting conditions is clarified.

[0103] 5. Effects of chemical regulation on wheat plant height

[0104] Spraying chlormequat significantly reduced wheat plant height. Spraying 0.25% chlormequat at 742.50g / hm2 during the three-leaf stage 2 The dwarfing effect was the best. The plant height of wheat decreased by 1.75% and 4.97% during the jointing stage, and by 2.58% to 5.77%, 5.18% to 8.98%, 4.68% to 7.71% and 4.99% to 9.01% during the flagging stage, booting stage, flowering stage and filling stage respectively.

[0105] Table 3-2-1 Effects of chemical regulation on wheat plant height

[0106]

[0107] 6. Effects of chemical regulation on wheat stem characteristics

[0108] Spraying different concentrations of chemical control agents significantly affected the characteristics of wheat stems and the construction of wheat stem morphological characteristics. Spraying 0.25% chlormequat 742.50g / hm2 at the jointing stage 2 The wheat center of gravity height was the lowest, the base internode diameter, compressive strength and lodging resistance index were the largest. The stronger the wheat lodging resistance was, the center of gravity height decreased by 8.37% and the diameter increased by 5.04% compared with the control. The stem strength of the second internode at the base increased by 19.70%, the dry weight increased by 21.20%, and the lodging resistance index increased by 31.02%.

[0109] Table 3-2-2 Effects of chemical regulation on wheat stem characteristics

[0110]

[0111] 7. Effects of Chemical Regulation on Wheat Stem Length

[0112] like Figure 4 As shown in the data, spraying different concentrations of chlormequat and paclobutrazol*methylpiperidin at different periods can reduce the length of different internodes of wheat. Spraying different concentrations of chlormequat at different periods can significantly reduce the length of the second, third and fifth internodes of wheat (P<0.05), but has no significant effect on the stem length of the first and fourth internodes (P>0.05). Among them, the high concentration of chlormequat treatment at the jointing stage has a greater effect on reducing the internode stem length of wheat, and the lengths of different internodes are reduced by 0.22-0.3cm, 0.46-0.71cm, 0.91-1.13cm, 2.6-3cm and 4.73-5.46cm respectively compared with the control treatment.

[0113] 8. Effects of chemical regulation on wheat yield

[0114] Different chemical control schemes can effectively regulate the relationship between various factors that constitute wheat yield and promote the formation of wheat yield. Spray 0.25% chlormequat 742.5.00g / hm2 at the jointing stage. 2 Wheat 1000-grain weight, number of ears, ear length, number of grains per ear and biomass increased by 3.56%, 21.06%, 10.68%, 7.69% and 18.82% respectively, and wheat yield increased by 10.74%.

[0115] Table 3-2-3 Effects of chemical regulation on wheat yield and yield components

[0116]

[0117] 9. Effects of Chemical Control on Wheat Dry Matter Flow

[0118] like Figure 5 As shown in the data, different chemical control measures can increase the dry matter turnover of wheat before anthesis, and improve the contribution rate to grains and the transportation rate; spraying high concentrations of chlormequat during the jointing stage significantly increased the dry matter turnover of wheat before anthesis, and improved the contribution rate of dry matter before anthesis to grains and the dry matter turnover efficiency before anthesis, which were 34.91%, 33.64% and 44.99% higher than those of the control, respectively.

[0119] 10. Effects of close planting and chemical control on wheat growth and yield

[0120] Appropriate population construction is a key measure to improve the productivity of densely planted crops. Chemical control can enhance the stress resistance of densely planted wheat, thereby regulating wheat growth and promoting high yield. In this study, a split-plot design was used under dense planting conditions, with a main plot of 6 million plants / hm2. 2 , 8 million plants / hm 2 , 10 million plants / hm 2 and 12 million plants / hm 2 Four planting densities, sub-area set at 0,502.5g / hm 2 , 742.5 / hm 2 The regulatory effects of close planting and chemical control on wheat growth and yield were studied using three dwarfing agent application rates.

[0121] (1) Effects of dense planting and chemical control on wheat plant height and chlorophyll content

[0122] like Figure 6 As shown in the results, chlormequat had a significant effect on plant height and chlorophyll content of wheat at flowering stage under different planting densities. With the increase of planting density, the plant height of wheat decreased by 8.52% to 9.71%, respectively. Spraying chlormequat significantly reduced the plant height of wheat. Under the same planting density, the decibels decreased by 3.04% to 8.90%, 3.43% to 4.19%, 2.99% to 6.89% and 0.57% to 6.22%, respectively. When the spraying amount was 502.5 g / hm2, the plant height of wheat decreased by 8.52% to 9.71%, respectively. 2The dwarfing effect on wheat was the highest when chlorophyll content increased by 0.61%-6.59%, 2.30%-3.3%, 0.13%-2.38% and 3.55%-4.84% respectively.

[0123] (2) Effects of dense planting and chemical control on wheat stem characteristics

[0124] Table 3-2-4 Effects of dense planting and chemical control on wheat yield components

[0125]

[0126] Chlormequat effectively regulates the stem characteristics of wheat under different planting densities. The center of gravity height of wheat sprayed with chlormequat was reduced by 14.83%-17.87%, 2.72%-10.03%, 5.04%-9.22% and 1.64%-9.01% respectively, and the diameter increased by 4.89%-7.78%, 1.48%-8.03%, 1.15%-3.03% and 0.66%-0.69% respectively. The compressive strength of the second internode at the base increased by 9.69%-26.91%, 3.60%-10.14%, 2.97%-30.89% and 19.42%-22.30% respectively, and the lodging resistance index increased by 33.79%-48.85%, 13.52%-15.45%, 13.69%-38.09% and 34.30%-21.16%.

[0127] (3) Effects of dense planting and chemical control on wheat yield composition Figure 16 :

[0128] The wheat yield and ear number under different chemical control agent dosage conditions are in a quadratic function relationship. By solving the function, the optimal wheat ear number and yield under different chemical control agent dosages can be obtained. The optimal ear number and yield under the C0 treatment are 8.0478 million plants / hm2. 2 and 7352.3026 kg / hm 2 The optimal ear number and yield under treatment C1 were 8.3238 million plants / hm2. 2 and 7454.30kg / hm 2 The optimal ear number and yield under treatment C2 were 8.8264 million plants / hm2. 2 and 8404.58 kg / hm 2 ;

[0129]

[0130] Under the same chemical control treatment, wheat yield at a planting density of 8 million plants / hm2 2 The maximum is 6, 10 and 120 million plants / hm2. 2increased by 2.07%, 5.87% and 10.91%; under the same density conditions, spraying 742.5g / hm 2 The concentration of chlormequat significantly increased wheat yield, increasing by 9.78% and 12.09% compared with other treatments; the yield of the treatment without chlormequat at lower density increased by 15.09%;

[0131] Under the same chemical control treatment, the number of wheat grains per ear and the 1000-grain weight were higher than those of 6 million plants / hm2. 2 The rates of chloroquine reduction were 13.08%, 25.75%, 35.73% and 3.68%, 5.07%, 6.1% respectively; spraying 742.5g / hm 2 Chlormequat significantly increased the number of grains per ear and 1000-grain weight, which increased by 13.94% and 7.79% and 1.72% and 0.22% respectively compared with the control and low-concentration chlormequat treatments; the number of wheat ears increased by 5.08% and 0.27% compared with the control and low-concentration treatments, respectively;

[0132] 11. Effects of water and nitrogen regulation on leaf area index of wheat population

[0133] Fertilization significantly increased the leaf area index of wheat population, reaching the maximum value at the booting stage. At the tillering stage, jointing stage, booting stage and grain filling stage, the leaf area index of wheat population increased significantly with irrigation and fertilization. At the flowering stage, the leaf area index of wheat population increased significantly with irrigation of 3900m 3 / hm 2 The largest at present, respectively 2900m 3 / hm 2 and 4900m 3 / hm 2 The leaf area index increased by 4.24% and 17.28% when the nitrogen fertilizer application rate was 240kg / hm 2 The leaf area index increased by 14.92%, 1.23% and 1.4% compared with N0, N1 and N3 respectively. When the nitrogen application rate reached 120kg / hm 2 Increasing the nitrogen fertilizer application rate during the flowering period did not significantly increase the leaf area index of wheat population (2023)

[0134] like Figure 7 As shown in the figure, the leaf area index of wheat gradually increased with the increase of irrigation amount, and W3 increased by 22.90% and 43.68% compared with W2 and W1 respectively; the leaf area index increased with the nitrogen fertilizer application rate of 240 kg / hm 2 The leaf area index was the largest when N0, N1 and N3 increased by 38.65%, 18.98% and 12.20% respectively compared with N0, N1 and N3.

[0135] 12. Impact of water and nitrogen regulation on wheat yield

[0136] Different water and nitrogen treatments had significant effects on wheat yield, plant height, number of grains per spike, grain weight per spike, number of spikes, and biomass. Under the same irrigation level, wheat grain weight per spike, number of grains per spike, 1000-grain weight, number of spikes, and yield decreased with increasing nitrogen application. When the nitrogen fertilizer application rate was 120 kg / hm2, the wheat yield decreased with increasing nitrogen application rate. 2 The maximum value was reached when the temperature was 10000 °C, and the increase was 2.70%-6.40%, 1.59%-2.46%, 2.76%-10.30%, 0.96%-1.00%, 3.62%-5.16%, 3.31%-5.27% and 8.68%-8.46% (2023) respectively compared with the other treatments.

[0137] At the same irrigation level, wheat grain weight, number of grains per ear, 1000-grain weight, and yield decreased with increasing nitrogen application rate. 2 The maximum value was reached when , which increased by 5.46%-55.64%, 1.55%-3.99%, 1.57%-10.25%, and 5.53%-17.46% respectively compared with the other treatments. There was no significant difference in the number of wheat ears under different water and nitrogen treatments (2024).

[0138] Table 3-3-1 Effects of Water and Nitrogen Regulation on Wheat Yield Structure (2023)

[0139]

[0140] Table 3-3-2 Effects of Water and Nitrogen Regulation on Wheat Yield Structure (2024)

[0141]

[0142] The grain yield function relationship was established based on irrigation amount and nitrogen application amount as independent variables:

[0143] Y1=-4.18E-4x 2 -0.01186y 2 -0.000144xy+3.922x+5.98y+401.668, R2=0.75(2023);

[0144] The optimal irrigation volume is 4734.76m 3 / hm 2 , nitrogen fertilizer application rate is 281.08kg / hm 2 , the output is 10528.06kg / hm 2 ;

[0145] Y2=-5.83E-4x 2 -0.01575y 2 -0.00365xy+6.09528x+24.72116y-7793.514

[0146] (R2=0.8249)(2024); the optimal irrigation volume is 4340.55m 3 / hm 2 , nitrogen fertilizer application rate is 281.47kg / hm 2 , the best yield is 8920.00kg / hm 2 The optimal nitrogen fertilizer application rate for the region was determined to be 266.00-294.00 kg / hm based on the optimal irrigation quota for the best wheat yield over the past two years and the 95% range of nitrogen fertilizer application rate. 2 , the irrigation volume is 4497.3-4557.57m 3 / hm 2 .

[0147] Under the same nitrogen application rate, it first increased and then decreased with the increase of irrigation amount. 2 , irrigation volume is 3900m 3 / hm 2 and 4900m 3 / hm 2 The wheat yield is the highest at 9833.36 kg / hm 2 and 9944.43 kg / hm 2 Water and fertilizer supply are key factors in the formation of wheat yield. Figure 8 As shown, the wheat yield in 2024 (2023) is 3900m 3 / hm 2 and 4900m 3 / hm 2 When the nitrogen fertilizer rate is 240kg / hm 2 The wheat yield is the largest at 9250.42 kg / hm2. 2 and 8924.55kg / hm 2 .

[0148] 13. Effects of water and nitrogen regulation on water use efficiency in wheat irrigation Figure 17 :

[0149] Under the same irrigation quota, the maximum value was reached under the treatment of nitrogen application rate N240, and the irrigation water use efficiency increased by 31.57%, 21.33% and 4.98% compared with N0, N1 and N3, respectively, and the water use efficiency increased by 31.66%, 23.27% and 7.57%, respectively;

[0150] At the same nitrogen application rate, 3900m 3 / hm 2 and 4900m 3 / hm 2 The utilization efficiency of treated irrigation water is higher than that of 2900m3 / hm 2 The irrigation quota was 3900m3, and the water use efficiency was reduced by 9.31% and 25.16%, respectively. 3 / hm 2 , nitrogen fertilizer dosage is 120kg / hm 2 When the water use efficiency of wheat irrigation is 2.52kg / m 3 , water use efficiency is 18.44kg / m 3 / hm 2 (2023), compared with 4900m 3 / hm 2 The irrigation water efficiency of wheat in 2017 was 2.37 kg / m 3 , water use efficiency is 16.51kg / m 3 / hm 2 (2023), compared with 4900m 3 / hm 2 An increase of 13.27% and 23.93%.

[0151] like Figure 9 As shown, the grouting rate increased significantly by 6.89%-8.29% with irrigation, while the grouting duration decreased by 12.08%-13.25%. Irrigation significantly delayed the onset of the maximum grouting rate (2.95-3.34 days) and increased the average grouting rate (8.62-7.69%). The grouting duration was longest under N120, increasing by 1.78 and 3.22 days, respectively. The maximum grouting rate decreased by 22.60%-16.44% compared to the high nitrogen treatment. N120 significantly delayed the onset of the maximum grouting rate by 3.02-3.2 days, while the average grouting rate decreased by 17.02-20.57%.

[0152] 14. Effects of water and nitrogen regulation on wheat dry matter transport

[0153] like Figure 10 As shown, 3900m 3 / hm 2 The irrigation volume is higher than 2900m 3 / hm 2 and 4900m 3 / hm 2 The dry matter turnover of wheat before anthesis increased significantly by 68.38% and 42.4%; the turnover rate increased by 63.24% and 42.62%; the contribution rate to grain increased by 56.81% and 51.35%; the dry matter turnover and contribution rate to grain after anthesis decreased; when the irrigation amount was 2900m 3 / hm 2 and 4900m3 / hm 2 , 360kg / hm 2 The nitrogen application rate significantly reduced the dry matter turnover before flowering, increased the dry matter turnover after flowering and the contribution rate to grain (85.37% to 92.17%); therefore, promoting the dry matter turnover before and after flowering of wheat through reasonable water and nitrogen regulation is the key to wheat yield formation.

[0154] 15. Effects of water and nitrogen regulation on nitrogen accumulation and protein content in wheat grains

[0155] like Figure 11 As shown in Figure 2, the nitrogen accumulation and protein content of wheat grains were significantly increased when the nitrogen fertilizer application rate was 120 kg / hm2. 2 The maximum value was reached at 3900m; the increase was 26.67%~39.54% and 17.31%~36.19% respectively compared with other nitrogen application treatments; 3 / hm 2 and 4900m 3 / hm 2 Irrigation amount wheat grain nitrogen accumulation 2900m 3 / hm 2 Increased by 27.8% and 28.3%, 3900m 3 / hm 2 The protein content of grain is higher than 2900m 3 / hm 2 and 4900m 3 / hm 2 Increased by 8.5% and 1.05%; at an irrigation volume of 3900m 3 / hm 2 , nitrogen fertilizer application rate is 120kg / hm 2 The nitrogen accumulation and protein content of wheat grains reached the maximum, which were 218.09 kg / hm 2 and 12.03%.

[0156] 16. Effects of water and nitrogen regulation on soil nitrogen accumulation and distribution

[0157] like Figure 12 As shown in the figure, the nitrate nitrogen content in the soil at maturity increased with the increase of nitrogen fertilizer application. When the irrigation amount was W2900 and W3900, and the nitrogen application amount exceeded N240, it was mainly concentrated in 0-40 cm; when the nitrogen fertilizer application amount reached W4900 and the nitrogen application amount exceeded N240, the soil nitrate nitrogen was mainly distributed in 0-60 cm, indicating that under this condition, excessive irrigation and fertilization led to the migration of soil nitrate nitrogen to the deep soil layer.

[0158] 17. Effects of water and nitrogen regulation on water use efficiency in wheat irrigation

[0159] like Figure 13 As shown in the data, different water and nitrogen treatments had significant effects on wheat water use efficiency. Under the same irrigation rate, irrigation water use efficiency first increased and then decreased with increasing nitrogen fertilizer application rate, reaching its maximum value under treatment N1, increasing by 5.82%, 1.87%, and 6.76% compared with N0, N2, and N3, respectively. Under the same nitrogen application rate, wheat irrigation water use efficiency decreased with increasing irrigation water, with W2 and W3 decreasing by 12.87% and 30.45% compared with W1, respectively (2023). Under the same irrigation rate, irrigation water use efficiency first increased and then decreased with increasing nitrogen fertilizer application, reaching its maximum value under treatment N240, increasing by 31.57%, 21.33%, and 4.98% compared with N0, N1, and N3, respectively. Under the same nitrogen application rate, wheat irrigation water use efficiency decreased with increasing irrigation water, with W2 and W3 decreasing by 9.31% and 25.16% compared with W1, respectively (2024).

[0160] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with this technical field within the technical scope disclosed by the present invention and within the spirit and principles of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A wheat shallow buried drip irrigation uniform seeding density high yield cultivation method, characterized in that: The method includes: S1: Two main treatments, traditional sowing (CT) and uniform sowing (KY), were set, and four different planting densities were set. By observing the changes in wheat growth and yield under different treatments, the appropriate sowing pattern and density of spring wheat in the Hexi irrigation area under shallow buried drip irrigation conditions were determined; S2: Shallow buried drip irrigation for wheat uniform sowing adopts the "1 tube 2 rows" drip irrigation tape laying method. The drip irrigation tape is buried 3-5 cm deep and located between two rows of wheat. The dripper spacing is 20 cm, the water output is 2.6 L / H, the wheat seedling tape is widened to 10 cm, the grains are evenly distributed in 10 cm planting rows, the row spacing is 20 cm, and the sowing density is 9 million plants / hm2 2 ; S3: Two chemical control agents, chlormequat and paclobutrazol*methylpiperidin, were sprayed at the three-leaf stage and jointing stage of wheat, respectively, with three gradients of chemical control agent dosage. Through the analysis of wheat plant height, stem characteristics and yield by different chemical control measures, the chemical regulation scheme of spring wheat under dense planting conditions was clarified; S4: Under dense planting conditions, a split-plot experimental design was used to study the regulatory effects of dense planting and chemical control on wheat growth and yield; S5: Under close planting conditions, a split-plot experimental design was used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

2. The wheat shallow buried drip irrigation uniform seeding and high-yield cultivation method according to claim 1, characterized in that: The four different planting densities are as follows: D1: 7.5 million plants / hm2 2 , D2: 8.25 million plants / hm 2 , D3: 9 million plants / hm 2 , D4: 9.75 million plants / hm 2 .

3. The wheat shallow buried drip irrigation uniform seeding and high-yield cultivation method according to claim 1, characterized in that: The three gradients are chlormequat: 0, 502.5 g / hm 2 、742.5g / hm 2 ; Paclobutrazol*Mepiridone is 0, 600g / hm 2 , 900g / hm 2 .

4. The wheat shallow buried drip irrigation uniform seeding and high-yield cultivation method according to claim 1, characterized in that: The S4 split-plot experimental design includes: the main plot is set at 6 million plants / hm2 2 , 8 million plants / hm 2 , 10 million plants / hm 2 and 12 million plants / hm 2 Four planting densities, sub-area set at 0, 502.5g / hm 2 , 742.5 / hm 2 Three chlormequat application rates.

5. The wheat shallow buried drip irrigation uniform seeding and high-yield cultivation method according to claim 1, characterized in that: The S5 split plot test design is to set 2900m in the main plot. 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2 Three irrigation levels, sub-area set at 0, 120kg / hm 2 , 240kg / hm 2 and 360kg / hm 2 Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

6. A wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation system based on the wheat shallow buried drip irrigation uniform sowing density increase high yield cultivation method as described in claims 1-5, characterized in that: The system specifically includes: Parameter setting module, set two main treatments: traditional seeding CT and uniform seeding KY, and set four different planting densities at the same time; The observation module is connected to the parameter setting module. By observing the changes in wheat growth and yield under different treatments, the appropriate sowing pattern and density of spring wheat in the Hexi irrigation area under shallow buried drip irrigation conditions are clarified; The sowing module is connected to the observation module. The wheat shallow buried drip irrigation uniform sowing adopts the "1 tube 2 rows" drip irrigation belt laying method. The drip irrigation belt is buried 3-5cm deep and located between two rows of wheat. The dripper spacing is 20cm, the water output is 2.6L / H, the wheat seedling belt is widened to 10cm, and the grains are evenly distributed in 10cm planting rows with a row spacing of 20cm. The sowing density is 9 million plants / hm2 2 ; The chemical control module is connected to the sowing module. Two chemical control agents, chlormequat and paclobutrazol*methylpiperidin, are sprayed at the three-leaf stage and jointing stage of wheat respectively. The dosage of chemical control agents is set at three gradients. Through the analysis of wheat plant height, stem characteristics and yield by different chemical control measures, the chemical control scheme of spring wheat under dense planting conditions is clarified. The dense planting and chemical control module is connected to the chemical control and regulation module. Under dense planting conditions, a split-plot experimental design is used to study the regulatory effects of dense planting and chemical control on wheat growth and yield; The water and nitrogen control module is connected to the dense planting chemical control module. Under dense planting conditions, a split plot test design is adopted, with the main area set at 2900m 3 / hm 2 、3900m 3 / hm 2 and 4900m 3 / hm 2 Three irrigation levels, sub-area set at 0, 120kg / hm 2 , 240kg / hm 2 and 360kg / hm 2 Four levels were used to study the regulatory effects of water and nitrogen regulation on wheat growth and yield.

Images