Method for increasing land productivity

Abstract

The application discloses a method for improving land productivity, which comprises the following steps: sowing fresh waxy corn in the form of reserving a cotton planting zone between every two corn planting zones in Handan city in early March, planting two rows of corn with a row spacing of 50 cm in each corn planting zone, and the width of the cotton planting zone is 242 cm; and sowing three rows of hybrid cotton with an equal row spacing of 76 cm in the cotton planting zone in early May, the row spacing is 76 cm, and the distance between each row of hybrid cotton and the adjacent row of corn is 45 cm, so as to improve the land productivity. The method is suitable for Handan city, the growth time and space of the two crops are reasonably distributed, the two crops do not affect each other, the light conditions in the two crop groups are fully improved, the soil nutrients and water are reasonably distributed, the cotton yield in unit area is normal, more corn is harvested, and the purpose of increasing the income of farmers is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a method for improving land productivity. BACKGROUND

[0002] Land productivity is an index reflecting the production capacity of land. It is also known as land production level. It is usually expressed by the amount of products or the value of products per unit area of land in a production period. There is a big difference in land productivity in different types of areas, different land conditions, different natural environmental factors and social and economic conditions. Even under the same natural conditions, due to the difference in material input, scientific and technological level and management level, the land productivity is different. Land is different from other means of production, and the index of land production capacity is the basis for sustainable development of agriculture. Not only the output is considered, but also the output is considered, and the land production capacity is restored and enhanced to ensure the healthy and sustainable development of cultivated land.

[0003] In the process of agricultural modernization development, it is necessary to tap the utilization potential of land, promote the research of key agricultural technologies, and improve the land productivity. Only by improving the land productivity can the income of farmers be increased, the living standard of farmers be improved, and the rural economic development be promoted. As the main content and guarantee of realizing agricultural production modernization, improving the utilization rate of land resources has important practical significance. SUMMARY

[0004] The technical problem to be solved by the present application is how to improve the land productivity under the climate conditions in Handan City, to carry out high-efficiency cultivation of hybrid cotton and fresh waxy corn interplanting, to reasonably distribute the growth time and space of the two crops, and to fully utilize the light, water and nutrient substances, so as to save cost, increase income and improve the land productivity. The cultivation system can be popularized and applied in the whole Handan City and other areas with similar environmental conditions.

[0005] To solve the above technical problem, the present application provides a method for improving land productivity. The method is to plant fresh waxy corn in Handan City in early March according to the mode of reserving a cotton planting belt between every two corn planting belts, to plant two rows of corn with a row spacing of 50 cm in each corn planting belt, and to set the width of the cotton planting belt to 242 cm; to interplant three rows of hybrid cotton in the cotton planting belt according to the equal row spacing of 76 cm in early May, and to set the row spacing of the hybrid cotton to 76 cm and the distance between each row of hybrid cotton and the adjacent row of corn to 45 cm, so as to improve the land productivity.

[0006] In the above method, the improvement of land productivity is compared with the planting of hybrid cotton only (single cropping) per unit area, or compared with the planting of fresh waxy corn only (single cropping) per unit area.

[0007] In the method, the two rows of corn are covered with a film with a film width of 0.9 meters during cultivation; and the three rows of hybrid cotton are covered with a film with a film width of 2 meters during cultivation.

[0008] In the method, the plant spacing of the hybrid cotton is 13.5 cm.

[0009] In the method, the plant spacing of the fresh waxy corn is 20 cm.

[0010] In the method, the hybrid cotton is selected from medium-early-mature varieties with short growth period and high yield, such as Hanza No. 13, Hanza 301, or Hanza 429.

[0011] In the method, the fresh waxy corn is selected from early-mature fresh waxy corn varieties with short growth period, such as Wan Nuo 2000, Wan Nuo 158, or Wan Nuo 188.

[0012] In the method, the hybrid cotton and the fresh waxy corn are both sown by the dry seeding and wet emergence method. The dry seeding and wet emergence method refers to that the field is not irrigated before sowing, and the sowing, film covering, and drip irrigation belt laying are completed at one time, and water is immediately irrigated after sowing to save cost and achieve complete emergence.

[0013] In the method, the hybrid cotton and the fresh waxy corn are sown at the same time by laying a drip irrigation belt, covering a film, and sowing.

[0014] In the method, a step of applying a topdressing to the hybrid cotton after the fresh waxy corn is harvested is included. The topdressing can be combined with water irrigation.

[0015] The present application is to improve the utilization rate of land and increase the economic benefits of farmers. According to the climate characteristics and farming arrangement characteristics of Handan City, a special study on the intercropping mode and matching cultivation technology of hybrid cotton and fresh waxy corn is carried out. The intercropping mode and matching cultivation technology suitable for Handan City are selected. The planting mode is reasonable in time and space distribution, does not affect each other, and can fully improve the light conditions in the population of the two crops, reasonably allocate nutrients and water in the soil, increase the yield of cotton in unit area of land, and achieve the purpose of increasing the income of farmers. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the arrangement of cotton and corn in the field in Example 1 of the present application. In the figure, 1 is cotton, and 2 is corn. DETAILED DESCRIPTION

[0017] The application will be further described in detail below with reference to the specific embodiments, and the examples given are only for the purpose of illustrating the application, but not for limiting the scope of the application. The examples provided below can serve as a guide for further improvement by those of ordinary skill in the art, and do not in any way constitute a limitation on the application.

[0018] The experimental methods in the following examples are all conventional methods, and are carried out according to the techniques or conditions described in the literature in the art or according to the product instructions, unless otherwise specified. The materials, reagents, etc. used in the following examples can be obtained commercially, unless otherwise specified.

[0019] The hybrid cotton variety Hanzamian No. 13 in the following examples is a transgenic insect-resistant three-line hybrid cotton variety, which was approved by Hebei Crop Variety Approval Committee in 2021 and is recorded in the non-patent literature "Ren Aimin, Ma Weijun, Zhang Yujuan, Han Qiucheng, Cui Minghui, Gao Caihong Breeding and Cultivation Technology of Transgenic Insect-Resistant Three-Line Hybrid Cotton Hanzamian No. 13", which can be obtained from the applicant to repeat the method of the application.

[0020] The fresh eating waxy corn variety Wanlu 2000 in the following examples is a product of Hebei Province Wanjian County Huasui Special Purpose Corn Seed Industry Co., Ltd.

[0021] Example 1

[0022] In order to improve land productivity, it is found in years of research that the symbiotic period of corn and cotton is 40-50 days, which is short. During the symbiotic period, cotton is in the seedling to bud stage, and the plant is short, which does not affect the growth of corn. After the harvest of fresh eating waxy corn, cotton is fertilized, the cotton plant enters the rapid growth period, the ventilation and light transmission are good, the cotton has no rotten bolls, and there is no effect on the yield of cotton. The inventors have conducted special research on the interplanting mode and matching cultivation technology of hybrid cotton and fresh eating waxy corn, and have selected a more suitable interplanting mode and matching cultivation technology for Handan City. The planting mode is reasonable in time and space distribution of the two crops, does not affect each other, and can fully improve the light conditions in the population of the two crops, reasonably allocate nutrients and water in the soil, and increase the yield of corn in unit area of land, achieving the purpose of increasing farmers' income.

[0023] The test was conducted in 2022 in Dadi West Village, Cheng'an County, Handan City, Hebei Province, and the specific steps are as follows:

[0024] Cotton and corn are arranged by different maturity varieties to realize the staggered use of time and space resources. Cotton is selected by short growth period, high yield, and early-maturing hybrid, and Hanzamian No. 13 is specifically selected in this embodiment. Corn is selected by short growth period, and early-maturing fresh eating waxy corn variety, and Wanlu 2000 is specifically selected in this embodiment.

[0025] The hybrid cotton and fresh food waxy corn interplanting treatment is set, and the single corn control and single hybrid cotton control are set, and each treatment and result is as follows:

[0026] 1. Hybrid cotton and fresh food waxy corn interplanting treatment:

[0027] The hybrid cotton and fresh food waxy corn are harvested by staggered sowing, realizing the staggered use of time and space resources, and reducing the symbiotic period. The fresh food waxy corn is sown around March 5, and sprouts on March 20, and is harvested on June 20. The hybrid cotton is sown around May 1, and sprouts around May 6, and is harvested in early October-November. The symbiotic period of corn and hybrid cotton is 40-50 days, and the symbiotic period is short. During the symbiotic period, the hybrid cotton is in the seedling stage to the bud stage, and the plant is shorter, which does not affect the growth of corn.

[0028] The hybrid cotton and corn interplanting adopts the planting mode of every 3 rows of hybrid cotton and 2 rows of corn alternately arranged (see Figure 1 , 3 rows of hybrid cotton, 2 rows of corn, 3 rows of hybrid cotton, 2 rows of corn, and so on), 3 rows of hybrid cotton are arranged at an equal row spacing of 76 cm, and the plant spacing is 13.5 cm, and the hybrid cotton density is 5200 plants per mu; the row spacing between 2 rows of corn is 50 cm, and the plant spacing is 20 cm, and the corn density is 1500 plants per mu; each row of hybrid cotton is 45 cm away from the adjacent row of corn.

[0029] Corn management: every two rows of corn as a corn planting belt, when sowing, according to the mode of reserving a cotton planting belt (according to Figure 1 , 45cm+76cm+76cm+45cm=242cm) between two planting belts, mulching with film, film width 0.9 meters, all film laying, using dry seeding and wet out method, corn is machine sown on March 5, and drip irrigation belt is integrated with film mulching sowing (mechanical operation, the used machine is the product of Hebei Nonghaha Machinery Group Co., Ltd., model 2BPSF-2), sowing amount 1.1-1.2 kg per mu, drip irrigation after sowing, sprouting on March 20, breaking the film and releasing seedlings on April 5, harvesting 1400 kg per mu of fresh food waxy corn on June 20, about 1000 yuan per mu. The corn straw after harvesting can be used as feed to feed livestock.

[0030] Hybrid cotton management: planting to the reserved cotton planting zone, mulching with film, film width 2 meters, using dry seeding and wetting out method, hybrid cotton is machine-seeded on May 1, and the operation of drip irrigation belt and film covering is integrated (mechanical operation, the used machine is the product of Xinjiang Alar Jinzhun Machinery Manufacturing Co., Ltd., model 2MBJ-1 / 6, drip irrigation belt, film covering, seeding and irrigation are simultaneously performed), drip irrigation after seeding; seedling on May 6; fertilization through drip irrigation belt by combining with watering on July 15 (the used fertilizer is compound fertilizer, the content ratio of nitrogen element, phosphorus element and potassium element is 28:5:6, and the fertilization amount is 20-30 kg / mu); topping on July 20, and picking from early October to late November, and the total harvested seed cotton is 600 kg / mu, and the hybrid cotton is controlled in whole growth period like the conventional management, and is free of pruning management.

[0031] 2. Single corn control:

[0032] The corn planting density is 3700 plants / mu, and large and small rows are planted, the row spacing of large row is 70 cm, the row spacing of small row is 50 cm, and the plant spacing is 30 cm, and other management modes are the same as those of the corn management mode in the hybrid cotton and fresh waxy corn interplanting treatment, and the final corn yield is 3000 kg / mu.

[0033] 3. Single cotton control:

[0034] The hybrid cotton planting density is 6500 plants / mu, and equidistant rows are planted, the row spacing is 76 cm, and the plant spacing is 13.5 cm, and other management modes are the same as those of the cotton management mode in the hybrid cotton and fresh waxy corn interplanting treatment, and the final cotton yield is 600 kg / mu.

[0035] The cotton and corn interplanting has better ventilation and light transmission, the cotton has no boll rot, and has edge row advantage, the cotton yield is basically not affected compared with single cropping, and corn is also harvested.

[0036] The above has carried out the detailed description to the present application. For the person skilled in the art, in the case that the purpose and range of the present application are not departed from, and unnecessary experiments are not needed, the present application can be implemented in a wide range under the equivalent parameters, concentration and conditions. Although the present application gives a special example, it should be understood that the present application can be further improved. In short, according to the principle of the present application, the present application intends to include any change, use or improvement of the present application, including the change made by the conventional technology known in the art, which is out of the range disclosed in the present application. Some basic features can be applied according to the scope of the following attached claims.

Claims

1. A method of increasing the productivity of land, characterised in that, The method is to sow fresh waxy corn in the way of reserving a cotton planting zone between every two corn planting zones in Handan City in early March, each corn planting zone is planted with two rows of corn with a row spacing of 50 cm, and the width of the cotton planting zone is 242 cm; in early May, three rows of hybrid cotton are interplanted in the cotton planting zone with an equal row spacing of 76 cm, the row spacing is 76 cm, and each row of hybrid cotton is 45 cm away from the adjacent row of corn, so as to improve the land productivity.

2. The method of claim 1, wherein: The plant spacing of the hybrid cotton is 13.5 cm.

3. The method of claim 1, wherein: The plant spacing of the fresh waxy corn is 20 cm.

4. The method of claim 1, wherein: The two rows of corn are covered with a film with a film width of 0.9 meters during cultivation, and the three rows of hybrid cotton are covered with a film with a film width of 2 meters during cultivation.

5. The method of claim 1, wherein: The hybrid cotton is selected from medium-early hybrid cotton varieties with short growth period and high yield.

6. The method of claim 5, wherein: The hybrid cotton is selected from Hanza No. 13, Hanza 301 or Hanza 429.

7. The method of claim 1, wherein: The fresh waxy corn is selected from early-maturing fresh waxy corn varieties with short growth period.

8. The method of claim 7, wherein: The fresh waxy corn is selected from Wan Nuo 2000, Wan Nuo 158 or Wan Nuo 188.

9. The method of claim 1, wherein: The hybrid cotton and the fresh waxy corn are both sown by the method of dry sowing and wet emergence.

10. The method of any one of claims 1-9, wherein: The method comprises the step of topdressing the hybrid cotton after the fresh waxy corn is harvested.

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