Green and high yield cultivation method for regenerated rice

Abstract

The invention discloses a green and high yield cultivation method for regenerated rice and mainly solves the existing technical problem such as rural labor shortage, farmland waste, cost saving, yieldand efficiency increasing and the like. The technical scheme of the method is characterized in that rice varieties with a growth period of 128-135 d are optimized, single-season rice sowing is performed from late March to early April, compound fertilizers comprising quicklime and plant ash are broadcast at a tillering stage, and pH value of soil is adjusted to be larger than 6 and smaller than 7.2; Se-containing foliar fertilizer is sprayed at a wax ripening stage; single-season rice harvest is performed in early August, a harvester with a straw crushing function is used for harvesting during harvesting, the height of retained rice stubble is 10-30 cm, harvested straw is completely crushed into 3-5 cm of rice periods and returned to the field, roots are cultivated, germination is accelerated, and ratoon rice is cultivated; Se-containing foliar fertilizer is sprayed at the initial heading stage of ratoon rice, so that seedlings, especially young ears, increase adsorption of Se, Se-enriched ratoon rice is produced, and absorption of rice to cadmium can be inhibited; and the ratoon rice can be harvested after the ratoon rice is ripe.

Description

technical field [0001] The invention relates to a green and high-yield cultivation method of ratooned rice. Background technique [0002] At present, most migrant workers enter the cities, and a large number of rural laborers are lost. Due to the lack of young labor force, farmers only use farming to ensure rations. Coupled with the progress of breeding, the grain yield is high. A lot of idle fields waste land productivity. The climate in Hunan is good, and the frost-free period is as long as 260-270 days. Most of them can be planted for two seasons. On this basis, the present application provides a green and high-yield cultivation method of ratooning rice that can be widely promoted by sowing once and harvesting twice, saving labor force, saving cost, and improving efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a green and high-yield cultivation method of ratooned rice which is reasonable in land use, labor-saving, gree...

AI Technical Summary

Problems solved by technology

[0002] At present, most migrant workers enter the cities, and a large number of rural laborers are lost. Due to the lack of young labor force, farmers only use farming to ensure rations. Coupled with the progress of breeding, the grain yield is high. A lot of idle fields, wasting land productivity