Planting method of interplanting orychophragmus violaceus and purple flower Chinese trumpet creeper as green manure in cotton field

A purple flower and sweet potato technology, which is applied in the fields of soil preparation, cotton cultivation, agricultural machinery and tools, etc., can solve the problems of seed drop, carbon sequestration, poor mulching effect, and affecting cotton growth, etc., to reduce the amount of chemical fertilizers and improve Soil exposure, reducing the effect of soil drying

Inactive Publication Date: 2019-08-02
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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AI Technical Summary

Problems solved by technology

Secondly, the cotton sowing period in the Yellow River Basin is mid-to-late April, so the green manure should have a large biomass when it is turned over in mid-to-late April after planting. Green manure with a small biomass is not effect...

Method used

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  • Planting method of interplanting orychophragmus violaceus and purple flower Chinese trumpet creeper as green manure in cotton field
  • Planting method of interplanting orychophragmus violaceus and purple flower Chinese trumpet creeper as green manure in cotton field
  • Planting method of interplanting orychophragmus violaceus and purple flower Chinese trumpet creeper as green manure in cotton field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A cotton field with uniform soil quality at the East Field Experimental Station of the Cotton Research Institute of the Chinese Academy of Agricultural Sciences was selected as the experimental site, and 10 treatment groups were set up. , ryegrass, sweet-scented clover, white clover, arrow tongue pea, sagegrass, sweet bean, and sandawang are ten kinds of green manure seeds that can fill winter cotton fields in the Yellow River Basin. The management process of the cotton field includes: the cotton density is 6000 plants / mu, sowing on April 21 with an equal row spacing of 76 cm, covered with double rows of 130 cm wide film; the row length of the plot is 10 meters, repeated 3 times, a total of 30 plots. Cotton management is the same as the local conventional high-yield cotton field. The irrigation method is flood irrigation. The green manure is sown by sowing, without adding any artificial and physical and chemical inputs except for sowing and overturning. The overwinter...

Embodiment 2

[0055] A cotton field with uniform soil quality at the East Field Experimental Station of the Cotton Research Institute of the Chinese Academy of Agricultural Sciences was selected as the test site, with a total mu of 18 mu and the same soil quality. Under the consistent situation of agronomic management measures, 18 treatment groups were established in the test, and treatment groups 1-18 adopted the sowing methods of corresponding embodiments 2-1 to 2-18 respectively; during the test, the management of cotton and green manure by each treatment group Same as the daily management of the crop.

[0056] After the rain in early September, choose Eryuelan seeds with variety purity ≥ 96%, seed purity ≥ 98%, seed germination rate ≥ 80%, seed moisture content ≤ 12%, and varieties with purity ≥ 92%, seed purity ≥ 94 %, seed germination rate ≥ 75%, and seeds with water content ≤ 12% for sowing. See Table 2 for the sowing amount and sowing method.

[0057] Table 2

[0058] Ex...

Embodiment 3

[0065] A cotton field with uniform soil quality was selected as the experimental site at the Dongchang Experimental Station of the Cotton Research Institute of the Chinese Academy of Agricultural Sciences. The experiment set up three planting systems of cotton single cropping, cotton / February intercropping, cotton / February + purple sweet potato, and 2 fertilization levels of 75% and 100% nitrogen fertilizer, with a total of 6 treatment groups. Wherein, embodiment 3-1 and 3-2 correspond to: the situation of inter-sowing Er Yuelan and purple sweet potato+75% nitrogen fertilizer, inter-sowing Er Yuelan and purple sweet potato+100% nitrogen fertilizer. Comparative examples 3-1 to 3-4 correspond to: no inter-sowing green manure + 75% nitrogen fertilizer, no inter-sowing green manure + 100% nitrogen fertilizer, inter-sowing Er Yuelan + 75% nitrogen fertilizer, inter-sowing Er Yue Lan + 100% nitrogen fertilizer . The test settings are shown in Table 4. Wherein, the amount of 100% n...

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Abstract

The invention provides a planting method of interplanting orychophragmus violaceus and purple flower Chinese trumpet creeper as green manure in a cotton field. The planting method comprises the following steps of in the later period of cotton growth, interplanting the orychophragmus violaceus and the purple flower Chinese trumpet creeper in the cotton field, and before the cotton seeding in the next year, performing turning pressing on the orychophragmus violaceus and the purple flower Chinese trumpet creeper to be used as the green manure. By using the method, the condition of cotton field soil exposure in winter and spring can be improved; the ecological problems of soil dryness, wind erosion enhancement, surface soil loss, flying dust and the like are solved. In addition, the soil organic matter is increased through green manure turning pressing; in addition, a leguminous crop of the purple flower Chinese trumpet creeper are planted; through the biological nitrogen fixation effects,the cotton field chemical fertilizer consumption is reduced; the use and care combination is realized; the green and sustainable production of cotton is realized.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a planting method for interplanting arborescens and purple sweet potato as green manure in a cotton field. Background technique [0002] With the increase of labor costs, the cotton planting system in the cotton area of ​​the Yellow River Basin in my country has intensified the evolution trend to a one-year system, resulting in a large amount of land being idle in winter and spring. Land slack in winter not only causes solar and thermal resources and land resources to be idle and wasted, but also easily causes ecological problems such as soil drying, enhanced wind erosion, topsoil loss and dust, and puts pressure on the surrounding urban environment. [0003] In addition, the amount of nitrogen fertilizer used by cotton in the Yellow River Basin is too high, which is 2.08 to 3 times the highest recommended nitrogen application rate in the cotton belt of the United S...

Claims

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Application Information

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IPC IPC(8): A01G22/50A01B79/02
CPCA01B79/02A01G22/50
Inventor 王占彪李亚兵韩迎春王国平李小飞冯璐杨北方雷亚平熊世武范正义杜文丽邢芳芳辛明华
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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