Photosynthetic bacterium agent-based yield-increasing lodging-resistant planting management method

Abstract

The invention discloses a yield-increasing and lodging-resistant planting management method based on a photosynthetic bacterium agent, and belongs to the technical field of agricultural planting, and the method comprises the following steps: S1, selecting lodging-resistant and rust-resistant wheat seeds, soaking the seeds in warm water at 30 DEG C for 10 minutes before seed dressing, screening out sinking seeds, dressing the seeds in three batches, carrying out low-temperature germination accelerating treatment for 24 hours after seed dressing, and carrying out high-temperature germination accelerating treatment for 24 hours after seed dressing; sowing the seeds for 1-2 days at intervals; s2, conventional tillage is conducted on 15 cm of the surface layer of the soil, deep scarification operation is conducted on 15-40 cm of the surface layer of the soil, a double-layer structure is formed, the volume weight of the soil reaches 1.2-1.3 g / cm, and base fertilizer is applied; s3, sowing is conducted when the soil temperature is larger than or equal to 12 DEG C before sowing, a trapezoidal sowing belt structure is adopted, every 3-4 rows form a group, the distance between the groups is 30 cm, the line spacing in the groups is kept 20 cm, the sowing depth is 3-5 cm, the soil water content in the three-leaf stage of wheat is kept to be 60%-70% of the field water capacity, and the water content is kept to be 65%-75% of the field water capacity after the seedling establishment stage; by means of the planting management method, high and stable yield of wheat and corn double-cropping crops is achieved, and the lodging-resistant capacity of the crops is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to a yield-increasing and lodging-resistant planting management method based on photosynthetic bacteria agents. Background Art

[0002] Food production, especially large-scale planting, is still greatly affected by climate. This is also the main reason why food production cannot achieve stable production; what is more important in food production is stable production, because stable production means that, just like industrial product production, it is possible to determine how much output can be obtained in the early stage of production, and the input-output ratio will be more clear, quantifiable and predictable.

[0003] In the production of wheat and corn, the yield fluctuation of wheat will be greater, especially winter wheat. Winter wheat needs to overwinter, and there will be unfavorable factors during the wintering, but the more important unfavorable factors are the late spring cold and the dry and hot wind in the summer.

[0004] Late spring cold weather occurs in the season after winter wheat turns green and starts to grow, but before heading, usually in April. In severe cases, wheat yields can drop by more than 80%. A 30% yield drop is common, mainly because the young ears of wheat in the ear stage freeze to death due to the sudden low temperature, including the main ear and the main leafing ear. Then, the roots of the surviving wheat will have a large number of new leaves, but because the leafing period has passed, it cannot mature on time, and only wheat straw can be harvested, with almost no grains.

[0005] Dry hot winds occur from late May to early June, mostly 3 to 10 days before wheat harvest. There will usually be rain and strong sun, or rain, strong sun and wind. The characteristic of dry hot winds is the sudden death of wheat roots. The season when dry hot winds occur is the critical period for wheat to transfer the organic components produced by photosynthesis in the flag leaves to the grains. The death of wheat roots leads to the rapid withering of wheat leaves and stems. The withering usually takes only half a day in strong sun; therefore, the transfer of organic matter in wheat leaves comes to an abrupt halt, which has a great impact on wheat yield.

[0006] Corn, in the wheat-corn double-season production, is planted after wheat is harvested, so it is called double-sown corn. It is planted more than a month later than single-season corn, depending on the geographical location and farming season. Wheat is harvested in summer, generally in early to mid-June in North China, and the corn harvest season for double-sown corn is around late September to mid-October.

[0007] The actual yield per mu of wheat is still around 700 catties. According to statistics from relevant sources, the average yield per mu of wheat in my country is about 750 catties. Although it will be higher in a bumper year, it may be much lower in a bad year with late spring cold and dry hot winds. Five years is a statistical unit, with one year of bumper harvest, two years of average yield, one year of small reduction, and one year of large reduction. On average, the yield per mu of wheat is mostly around 700 catties. Summary of the invention

[0008] The invention provides a yield-increasing and lodging-resistant planting management method based on photosynthetic bacteria agent, which solves the technical problems in the prior art of low yield and weak lodging resistance of double-season crops of wheat and corn.

[0009] It can be understood that in the embodiment of the present application, in the problem of limiting the spraying amount, the capacity of the sprayers commonly used by farmers in production practice is mostly 15L. In order to facilitate the understanding and operation of the growers, 15L is used as the measurement benchmark in this application. For example, the spraying amount per mu is 15-30L, that is, the capacity of 1-2 barrels of sprayers. In actual applications, the water consumption per mu is not limited to multiples of 15L.

[0010] The photosynthetic bacterial agent-based yield-increasing and lodging-resistance planting management method provided by the present invention comprises the following steps: S1. Select lodging-resistant and rust-resistant wheat seeds, soak the seeds in 30° C. warm water for 10 minutes before seed dressing, select the seeds that sink, and dress the seeds in 3 batches. After seed dressing, perform low-temperature germination treatment for 24 hours, and sow them 1 to 2 days apart. S2. Carry out conventional tillage on the top 15cm of the soil, and deep loosening on the 15-40cm layer to form a double-layer structure, so that the soil bulk density reaches 1.2-1.3g / cm³, and apply basal fertilizer; S3. Sowing should be done when the soil temperature is ≥12℃ before sowing. A trapezoidal sowing belt structure should be used, with 3-4 rows in a group, 30cm between groups, 20cm between rows in a group, and a sowing depth of 3-5cm. The soil moisture content should be maintained at 60%-70% of the field water holding capacity during the three-leaf stage of wheat, and maintained at 65%-75% of the field water holding capacity after the greening period. S4. During wheat planting, photosynthetic bacteria should be sprayed on the leaves for no less than three times and on the roots for no less than three times. The dosage of photosynthetic bacteria should be 0.3-1.0 kg / mu for each application. During the jointing period, drip irrigation should be used to supplement water and 10 kg / mu of urea should be applied at the same time. S5. Wheat should be harvested when the moisture content of wheat grains is ≤14%, and the stubble height should be controlled below 15 cm. 60% of the wheat straw should be crushed and returned to the field until the particle size is ≤3 cm. After the straw is crushed, it should be evenly covered in a tic-tac-toe pattern. S6. Select corn seeds of early-maturing varieties that are resistant to dense planting, and soak them in 3-30 times diluted photosynthetic bacteria agent for 10 minutes; S7. Apply urea 15kg / mu at the tasseling stage of corn, spray 50 times diluted photosynthetic bacteria agent 15-75kg / mu before tasseling, and spray 0.01% brassinolide 10ml / mu at the same time. Maintain soil moisture at 70%-80% of field water holding capacity, and cut off the bottom 2 old leaves at the 8-leaf stage of corn; S8. Harvest corn kernels when their moisture content is ≤25%. Chop corn stalks into pieces with a particle size of 2-3 cm and then silage them. Spray photosynthetic bacteria concentrate in layers at 2-5 L / ton during silage. Control the temperature of the silage pile at 30-55°C.

[0011] Preferably, in S1, the seed dressing treatment is: dressing the seeds with a 2-5 times diluted photosynthetic bacteria agent, and the dressing amount is 20-40 ml / kg seeds.

[0012] Preferably, in S4, the foliar spraying comprises: A1. When wheat is in the three-leaf stage, spray the roots of wheat with 30-60 times diluted photosynthetic bacteria agent, with a total spraying amount of 45-60L / mu; A2. During the wheat greening period, spray 40-80 times diluted photosynthetic bacteria agent on the leaves and roots of wheat, with a total spraying amount of 15-45L / mu; A3. 10-20 days after spraying in the green period, spray 50-100 times diluted photosynthetic bacteria agent, with a total spraying volume of 15-45L / mu; A4. During the wheat flag-raising stage to heading stage, spray 30-70 times diluted photosynthetic bacteria agent, with a total spraying amount of 15-45L / mu; A5. During the wheat filling period, spray 30-70 times diluted photosynthetic bacteria agent containing 0.2% potassium dihydrogen phosphate, with a spraying amount of 15-30L / mu.

[0013] It can be understood that the first bacterial agent spraying on wheat during the three-leaf stage and the seed dressing in the present application embodiment can increase the early tillering number of wheat, increase the ear formation rate, and promote the early development of the root system; The second spraying of fungicides during the greening period and the third spraying of fungicides during the jointing period can promote wheat tillering and increase the ear formation rate. About 10 days after these two sprayings are completed, the Qingming solar term begins. The late spring cold will occur during this stage every year. These two sprayings help wheat resist the late spring cold.

[0014] Preferably, spraying the fungicide once between the wheat greening stage and the jointing stage can enhance the spraying effect.

[0015] The flag-picking stage is also called the booting stage. Spraying fungicides at this stage will help promote the development of florets.

[0016] The last spraying of fungicides in the early stage of grain filling helps wheat to fill grains and make the grains plump. It is difficult to enter the field for spraying during this period, so drone spraying can be chosen.

[0017] Preferably, in S4, the root spraying comprises: B1. Between the greening stage and the jointing stage of wheat, irrigate once with a water volume of 50-70 tons / mu and apply photosynthetic bacteria agent at 5kg / mu; B2. Between the heading stage and the grain filling stage of wheat, irrigate once with a water volume of 50-70 tons / mu and apply photosynthetic bacteria agent at 5kg / mu; The irrigation method is large water flooding or small water sprinkler irrigation.

[0018] The flood irrigation includes: using 50-70 tons / mu of water for one irrigation, and applying 5kg / mu of fungicide with the irrigation water.

[0019] The small sprinkler irrigation includes watering with a water consumption of 7-20 tons / mu, and adding 1-5 kg / mu of microbial agent for sprinkler irrigation in the last 10 minutes or the last 1 / 5 time of sprinkler irrigation.

[0020] Preferably, in S4, the root spraying further comprises a small sprinkler irrigation between the wheat greening stage and the jointing stage, with a sprinkler irrigation water volume of 7-30 tons / mu, and adding 1-5 kg / mu of bacterial agent for spraying in the last 10 minutes or the last 1 / 5 of the spraying time; Between the heading and filling stages of wheat, a small sprinkler irrigation is carried out with a water volume of 7-30 tons / mu. In the last 10 minutes or the last 1 / 5 of the spraying time, 1-5 kg / mu of microbial agent is added for spraying.

[0021] It is understandable that it is necessary to water the wheat with diluted bacterial agents in the embodiments of the present application. A soaking rain in the tenth month of the lunar calendar is the rain before the wheat freezes, and this rain is very important to wheat. In winter, the ice is three feet thick, and the climate is generally dry, and the ice will sublime directly without melting into water. Because the growth period is still very short, the root system of wheat entering the wintering period will not be very large, and the sublimation of soil moisture in the wheat field may cause the wheat root system to lose water and develop poorly or even die. It should be noted that the winter freezing season is the main period for the development of the wheat root system and tillering, which has a great impact on wheat yield. Therefore, there was a saying in the past that watering wheat with freezing water. A soaking rain in the third month of the lunar calendar is very critical for wheat from heading to filling. The lack of water in the wheat field during this period will seriously affect the wheat yield.

[0022] Both spraying and watering will promote the development of wheat root system, which not only makes wheat grow stronger, but also can prevent premature aging and live stalk maturation of wheat during the wheat maturity period, thus reducing the harm of dry and hot winds and achieving increased production.

[0023] It can be understood that the use of bacterial agents to spray and irrigate wheat in the embodiments of the present application can significantly improve the quality of wheat. The improvement in quality is due to the enhancement of photosynthesis. After the photosynthetic bacteria composite agent is applied, the thickness and area of ​​the plant leaves can be increased, that is, photosynthesis is increased, which means that more organic matter is synthesized and the live stalks are mature. In the final stage of wheat maturity, more photosynthesis products in the leaves can be transferred to the grains, thereby increasing yield.

[0024] my country advocates and implements the one-spray and three-prevention method for wheat. It can be understood that in the embodiments of the present application, although the application of photosynthetic bacteria agents from the heading stage to the filling stage of wheat has similar effects, it is not a substitute for the one-spray and three-prevention method for wheat in conventional technology.

[0025] For flood irrigation, the water consumption per mu is generally 50 tons to 70 tons, or more. With the flow of flood irrigation, use a medical infusion dropper to drip the bacterial agent at the mouth of the water channel, at a rate of 5kg / mu.

[0026] For small sprinkler irrigation, the amount of water used per mu can be controlled by the sprinkler irrigation time. In the first half of the sprinkler irrigation, no bacterial agent is added to prevent the bacterial agent from penetrating into the deep soil with the irrigation water and losing the effect on the wheat and corn roots. 10 minutes before the end of the sprinkler irrigation, or when the remaining 1 / 5 of the sprinkler irrigation time is completed, add the bacterial agent to the sprinkler irrigation main pipeline and spray it together. The amount of bacterial agent is 1-5kg / mu. To add the bacterial agent to the sprinkler irrigation pipeline, you can use a commonly used electric sprayer, connect it to a medical infusion dropper, insert the needle of the medical infusion dropper into the sprinkler irrigation pipeline along the direction of the water flow, turn on the sprayer switch, and control the time of spraying the liquid to match the bacterial dosage per mu.

[0027] Preferably, the number of live bacteria in the photosynthetic bacterial agent is ≥ 2.0×10 8 CFU / mL.

[0028] Preferably, in S1, the lodging-resistant and rust-resistant wheat seeds are one of Shannong 42, Shannong 25, Qimin 12, and Shenmai No. 1.

[0029] Preferably, in S2, the content ratio of nitrogen, phosphorus and potassium in the basal fertilizer is 1.2:1:1.2.

[0030] Preferably, in S6, the early-maturing variety corn seeds that are resistant to dense planting are one of Zhengdan 958, Jingke 968, and Demeya No. 1.

[0031] The present invention has at least the following beneficial effects: The present invention significantly promotes photosynthesis and root development of plants by applying photosynthetic bacteria in stages during the growth cycle of the wheat-corn double-season crop, thereby effectively increasing yield. Even in the face of natural disasters and attacks by pests and diseases such as late spring cold, dry hot winds and red spider mites, the present invention can still maintain a considerable yield level. By applying the photosynthetic bacteria, wheat not only increases and stabilizes yield, but also significantly enhances its ability to resist pests and diseases and lodging, bringing significant economic benefits. More importantly, the present invention is green and pollution-free throughout the process, effectively reduces pesticide residues, and provides a more environmentally friendly and sustainable solution for agricultural production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a picture of the wheat root system and leaves after wintering but before turning green again. The left side is the control group and the right side is the experimental group.

[0033] Figure 2 This is a comparison chart of wheat ears sampled.

[0034] Figure 3 This is a comparison chart of corn kernels sampled from corn, with the experimental group on the left and the control group on the right.

[0035] Figure 4 This is a diagram of wheat growth from the greening stage to the jointing stage. The left side is the control group and the right side is the experimental group. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The photosynthetic bacterial agents used in the embodiments of the present invention are all Guolikang photosynthetic bacteria composite agents produced by Shanxi Guokang Biotechnology Co., Ltd.

[0038] Example The test site is Nanguo Village, Peishe Town, Wenxi County, Shanxi Province. The test period is from 2021 to 2024. The test area is 10 acres. The soil conditions are typical dryland areas of the Loess Plateau. The soil is alkaline and has an organic matter content of 1.8%.

[0039] The control group adopted conventional planting method.

[0040] The management and planting methods of the experimental group are as follows: The soil deep loosening depth is 45cm, and the amount of straw returned to the field is 70%; The base fertilizer applied per mu is: urea, 12kg / mu; superphosphate, 25kg / mu; potassium sulfate, 22kg / mu; organic fertilizer, 600kg / mu.

[0041] The wheat variety selected was the drought-resistant and lodging-resistant variety Qimin 12. The wide and narrow row structure was adopted for sowing, with a wide row spacing of 40 cm and a narrow row spacing of 20 cm. The sowing amount was 12 kg / mu, and the seedling density was controlled at 150,000-160,000 plants / mu, which was about 15% lower than the conventional 180,000 plants / mu. The seeds were soaked in 30°C warm water for 10 minutes, and the sinking seeds were screened out and sown in 3 batches, with an interval of 1 to 2 days. The photosynthetic bacteria agent was diluted 5 times within 24 hours before sowing, and the seed mixing amount was 25 ml / kg of seeds; the 30-fold diluted solution was used for foliar spraying at the three-leaf stage , 20L per mu, spray the roots with 40 times diluted solution before wintering, 25L per mu, spray the leaves with 40 times diluted solution during the jointing stage, and add 0.2% potassium dihydrogen phosphate, 25L per mu, spray the leaves with 50 times diluted solution during the booting stage, 30L per mu, spray the roots with 50 times diluted solution during the heading stage, 30L per mu, spray the leaves with 60 times diluted solution during the filling stage, add a mixture of 0.3% zinc sulfate and 0.2% potassium dihydrogen phosphate, 35L per mu.

[0042] The corn variety selected is the drought-resistant and densely planted variety Demiya No. 1. The seeds are soaked in 5-fold diluted photosynthetic bacteria agent for 12 minutes. The sub-membrane drip irrigation technology is adopted. The total water consumption during the corn growth period is controlled at 150-180 tons / mu; the lower 3 old leaves are removed at the 8-leaf stage, and 70-fold diluted photosynthetic bacteria agent is sprayed at the large trumpet stage, and 0.01% gibberellin is added, with a dosage of 30L per mu.

[0043] The performance data of the key growth period are recorded in Tables 1 and 2.

[0044] Table 1 Data record of wheat growth key period performance Reproductive period Plant height (cm) Tillering number (unit / plant) Root length (cm) Stem diameter (mm) Lodging rate (%) Three-leaf stage 18.5 2.3 12.6 2.3 - Overwintering period 22.7 3.5 15.8 2.8 - Green period 25.3 4.2 18.5 3.2 - Jointing stage 45.8 4.5 22.7 4.1 0 Heading period 78.5 4.6 25.3 4.8 0 Grouting period 82.6 4.6 26.5 5.2 0 Maturity 85.3 4.5 27.2 5.3 2.5 Table 2 Data record of corn growth key period performance Reproductive period Plant height (cm) Number of leaves (pieces / plant) Stem diameter (cm) Ear height (cm) Incidence of pests and diseases (%) Lodging rate (%) Seedling stage 25.3 6.1 1.5 - 1.2 0 Jointing stage 85.6 12.3 3.1 45.3 2.5 0 Big bell period 180.5 15.2 3.5 85.6 3.1 0 Heading period 235.6 17.3 3.8 115.2 3.5 0 Grouting period 245.7 17.1 3.9 118.5 4.2 1.2 Maturity 248.3 16.8 3.7 120.3 5.3 3.5 Table 3 Wheat production Evaluation indicators Experimental Group Control group Increase / decrease rate (%) Number of effective ears (10,000 ears / mu) 40.5 32.3 25.4 Number of grains per ear (grains / ear) 38.7 32.5 19.1 Thousand-grain weight (g) 45.6 41.2 10.7 Yield (kg / mu) 615.3 485.6 26.7 Table 4 Corn production Evaluation indicators Experimental Group Control group (conventional method) Increase / decrease rate (%) Number of ears (pieces / mu) 3850 3550 8.5 Number of grains per ear (grains / ear) 550.3 478.5 15 100-grain weight (g) 38.5 35.2 9.4 Yield (kg / mu) 782.5 662.3 18.2 Table 5 Comprehensive Benefit Analysis Evaluation indicators Experimental Group Control group difference Total annual output of wheat and corn (kg / mu) 1397.8 1147.9 249.9 Input cost (yuan / mu) 1850 1650 200 Output value (yuan / mu) 4193.4 3443.7 749.7 Net income (yuan / mu) 2343.4 1793.7 549.7 Input-output ratio 2.27 2.09 0.18 During the experiment, the area experienced heavy rainfall and 7-level gale weather. The lodging rate of wheat in the experimental group was only 2.5%, and the lodging rate of corn was 3.5%, while the lodging rate of wheat in the control group was 15.8%, and the lodging rate of corn was 12.3%. It can be seen from Tables 1 and 2 that the root length of wheat at maturity increased by 35.3% compared with the control group (the root system and leaf division of wheat are shown in Figure 1). Figure 1As shown in Table 4, the diameter of wheat stalks increased by 22.1%, and the diameter of corn stalks increased by 17.8%. As can be seen from Table 4, the proportion of corn ears is more moderate (as shown in Table 4). Figure 3 As shown, the corn kernels in the experimental group were fuller), and the lodging resistance was enhanced, indicating that the planting management method of the present invention significantly improved the lodging resistance of crops.

[0045] From Tables 3 and 4, we can see that wheat production increased by 26.7% (the wheat ear comparison chart is as follows Figure 2 As shown in the figure, corn yield increased by 18.2% and the annual total yield increased by 21.8%, indicating that the planting management method of the present invention significantly increased the yield of crops.

[0046] When encountering a late spring cold snap in the spring of 2022, the frost damage rate of wheat in the experimental group was only 5.3%, while that in the control group was 12.8%; when encountering dry hot winds in the summer of 2023, the wheat filling in the experimental group was normal, and the yield reduction was only 8.5%, while that in the control group was 20.3%, indicating that the planting management method of the present invention significantly improves the crop's ability to stabilize yields.

[0047] from Figure 4 It can be seen that between the greening stage and the jointing stage, the growth of wheat in the experimental group was significantly better than that in the control group.

[0048] It can be seen from Table 5 that the planting management method of the present invention can significantly improve planting income, has obvious economic benefits, and is worthy of promotion.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that all equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for increasing yield and resisting lodging by photosynthetic bacteria, characterized in that: The following steps are involved: S1. Select lodging-resistant and rust-resistant wheat seeds, soak the seeds in 30° C. warm water for 10 minutes before seed dressing, select the seeds that sink, and dress the seeds in 3 batches. After seed dressing, perform low-temperature germination treatment for 24 hours, and sow them 1 to 2 days apart. S2. Carry out conventional tillage on the top 15cm of soil, and deep loosening on the 15-40cm layer to form a double-layer structure, so that the soil bulk density reaches 1.2-1.3g / cm³, and apply basal fertilizer; S3. Sowing should be done when the soil temperature is ≥12℃ before sowing. A trapezoidal sowing belt structure should be used, with 3-4 rows in a group, 30cm between groups, 20cm between rows in a group, and a sowing depth of 3-5cm. The soil moisture content should be maintained at 60%-70% of the field water holding capacity during the three-leaf stage of wheat, and maintained at 65%-75% of the field water holding capacity after the greening period. S4. During wheat planting, photosynthetic bacteria should be sprayed on the leaves for no less than three times and on the roots for no less than three times. The dosage of photosynthetic bacteria should be 0.3-1.0 kg / mu for each application. During the jointing period, drip irrigation should be used to supplement water and 10 kg / mu of urea should be applied at the same time. S5. Wheat should be harvested when the moisture content of wheat grains is ≤14%, and the stubble height should be controlled below 15 cm. 60% of the wheat straw should be crushed and returned to the field until the particle size is ≤3 cm. After the straw is crushed, it should be evenly covered in a tic-tac-toe pattern. S6. Select corn seeds of early-maturing varieties that are resistant to dense planting, and soak them in 3-30 times diluted photosynthetic bacteria agent for 10 minutes; S7. Apply urea 15kg / mu at the tasseling stage of corn, spray 50 times diluted photosynthetic bacteria agent 15-75kg / mu before tasseling, and spray 0.01% brassinolide 10ml / mu at the same time. Maintain soil moisture at 70%-80% of field water holding capacity, and cut off the bottom 2 old leaves at the 8-leaf stage of corn; S8. Harvest corn kernels when their moisture content is ≤25%. Chop corn stalks into pieces with a particle size of 2-3 cm and then silage them. Spray photosynthetic bacteria concentrate in layers at 2-5 L / ton during silage. Control the temperature of the silage pile at 30-55°C.

2. The planting management method according to claim 1, characterized in that: In S1, the seed dressing treatment is: dressing the seeds with a 2-5 times diluted photosynthetic bacteria agent, and the dressing amount is 20-40 ml / kg seeds.

3. The planting management method according to claim 1, characterized in that: In S4, the foliar spraying comprises: A1. When wheat is in the three-leaf stage, spray the roots of wheat with 30-60 times diluted photosynthetic bacteria agent, with a total spraying amount of 45-60L / mu; A2. During the wheat greening period, spray 40-80 times diluted photosynthetic bacteria agent on the leaves and roots of wheat, with a total spraying amount of 15-45L / mu; A3. 10-20 days after spraying in the green period, spray 50-100 times diluted photosynthetic bacteria agent, with a total spraying volume of 15-45L / mu; A4. During the wheat flag-raising stage to heading stage, spray 30-70 times diluted photosynthetic bacteria agent, with a total spraying amount of 15-45L / mu; A5. During the wheat filling period, spray 30-70 times diluted photosynthetic bacteria agent containing 0.2% potassium dihydrogen phosphate, with a spraying amount of 15-30L / mu.

4. The planting management method according to claim 1, characterized in that: In S4, the root spraying comprises: B1. Between the greening stage and the jointing stage of wheat, irrigate once with a water volume of 50-70 tons / mu and apply photosynthetic bacteria agent at 5kg / mu; B2. Between the heading stage and the grain filling stage of wheat, irrigate once with a water volume of 50-70 tons / mu and apply photosynthetic bacteria agent at 5kg / mu; The irrigation method is large water flooding or small water sprinkler irrigation.

5. The planting management method according to claim 4, characterized in that: In S4, the root spraying further comprises: Between the wheat greening period and the jointing period, a small amount of sprinkler irrigation is applied, with a sprinkler water volume of 7-30 tons / mu. In the last 10 minutes or the last 1 / 5 of the spraying time, 1-5 kg / mu of photosynthetic bacteria agent is added for spraying; Between the heading and filling stages of wheat, a small sprinkler irrigation is carried out with a water volume of 7-30 tons / mu. In the last 10 minutes or the last 1 / 5 of the spraying time, 1-5 kg / mu of photosynthetic bacteria agent is added for spraying.

6. The planting management method according to claim 1, characterized in that: The number of live bacteria of the photosynthetic bacteria agent is ≥2.0×10 8 CFU / mL.

7. The planting management method according to claim 1, characterized in that: In S1, the lodging-resistant and rust-resistant wheat seeds are one of Shannong 42, Shannong 25, Qimin 12, and Shenmai No.

1.

8. The planting management method according to claim 1, characterized in that: In S2, the content ratio of nitrogen, phosphorus and potassium in the basal fertilizer is 1.2:1:1.

2.

9. The planting management method according to claim 1, characterized in that: In S6, the early-maturing variety corn seeds that are resistant to dense planting are one of Zhengdan 958, Jingke 968, and Demeya No. 1.

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