Wheat-corn double cropping one-year three-prevention one-turning rotary tillage planting method

Abstract

The invention discloses a wheat-corn double-cropping three-avoiding one-turning rotary tillage planting method, which is characterized in that no-tillage and straw stubble covering are implemented from the first year to the third year, that is to say, wheat seeding adopts a no-tillage combined seed and fertilizer drill to perform one-time seeding on the premise of adopting as little disturbance to soil as possible, the fertilizer is granular compound fertilizer as far as possible, and the possibility of blockage is low; after corn is harvested in the fourth year, corn straw is smashed through a straw returning machine, the ground surface is evenly covered with the smashed corn straw, then deep ploughing is conducted by 20-25 cm, and then the operation step is repeatedly executed every four years. The water utilization efficiency and the annual yield are superior to those of a traditional cultivation mode.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a wheat-corn two-cropping a year, three-free and one-rotation tillage planting method. Background technique [0002] In the past, agricultural production paid attention to intensive cultivation, which is undoubtedly an excellent traditional farming method. However, this approach also has a number of drawbacks. First of all, the number of times of tillage is high, and the cost of tillage is high. Before sowing the crops, the straws of the previous season's crops are treated and fertilized (mostly by hand), and then the tillage and harrowing are carried out, and finally sowing is carried out. For the labor input, the land preparation before sowing is necessary. longer time. Secondly, although the soil becomes loose after ploughing, the water loss of the soil surface is faster, soil respiration is enhanced, and soil carbon and nitrogen loss is larger. Third, the soil surf...

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Problems solved by technology

[0007] Third, no-tillage technology should not be applied continuously

The main reasons are as follows: (1) Under the double-cropping mode of wheat and corn a year, the amount of crop straw returned to the field is relatively large, and the degree of corruption is low, and the living environment of diseases and insect pests is not damaged. Accumulation, the occurrence of diseases and insect pests has increased compared with plowed fields, and the cost of pesticides has increased

(2) Because there has been no deep plowing for many years, the bulk density of the surface soil is high, and the surface is covered with straw, which makes it difficult to receive sunlight, the temperature of the farming ground is low, the growth of wheat seedlings is slow, and there are few tillers before winter

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