Crop rotation method capable of quickly improving agricultural soil productivity in Three Gorges reservoir area

Abstract

The invention discloses a crop rotation method capable of quickly improving agricultural soil productivity in the Three Gorges reservoir area. Grain amaranth with obvious soil fertility is used as the preceding crop and the k-favoring crops and rape as the succeeding crops; then, azotobacter, phosphate-solubilizing bacteria and potassium-releasing bacteria which are separated and obtained from the grain amaranth root soil are prepared into mixed fungicide of which the national standard bacteria content is 10*108 / ml; the mixed fungicide is applied to the succeeding crops to organically combine rotation crop with fertility of dry land, so that the improvement of N, P, K and B nutrient in agricultural soil is taken as the breach to accelerate the growth of the succeeding crops and improve the quality and the quantity. The invention can solve the problems of poor agricultural soil productivity in the Three Gorges reservoir area, even Chongqing and the whole country, shortage of green feeds, reduction of rape planting area, gap of colza oil in markets and the like.

Description

technical field

[0001] The invention relates to the technical field of crop planting, in particular to a crop rotation method for rapidly improving agricultural soil fertility in the Three Gorges reservoir area. Background technique

[0002] Crop rotation is an important part of the crop planting system, one of the important technologies of modern "circular agriculture", and also the traditional experience of my country's agricultural intensive cultivation and coordinated use and cultivation of soil. The promotion and application of crop rotation technology has many functions and benefits such as making full use of natural resources, increasing soil biodiversity, improving soil physical and chemical properties, promoting crop growth and development, continuously increasing crop yield, effectively improving product quality, reducing costs, and increasing income. , is considered to be a "costless production increase technology", and has been widely adopted by countries all ove...