Minimal-tillage dry direct-seeding cultivating method for rice

Abstract

The invention discloses a minimal-tillage dry direct-seeding cultivating method for rice. The minimal-tillage dry direct-seeding cultivating method includes the steps that (1) straw turnover is carried out to cover soil after preceding crops in a rice field are harvested, and meanwhile pre-seeding preparation is carried out on rice seeds to obtain rice seeds to be seeded; (2) the rice seeds to be seeded are directly seeded after strip rotary tillage is carried out on the soil, and fertilizers are deeply applied to the soil; (3) the rice seeds get into the growth period after direct seeding is carried out, ditch infiltration irrigation is carried out on the rice field in the whole growth period, and meanwhile pest control and / or crop smothering control are / is carried out; (4) harvesting is carried out at the right moment according to the growth period of the rice, and next-round crop planting is carried out. According to the minimal-tillage dry direct-seeding cultivating method, minimal-tillage dry direct seeding and water management are combined, the rice seedling bed period is eliminated through minimal-tillage direct seeding, a submergence irrigation technology is replaced by a right-moment irrigation technology, the technical problem that a traditional rice cultivating technology is large in seedling transplantation and working intensity and low in fertilizer and water use efficiency is accordingly solved, and the comprehensive production capacity of a rice cultivating system is improved.

Description

technical field [0001] The invention relates to a rice cultivation method, in particular to a cultivation method of rice with less tillage and direct seeding, and belongs to the field of crop planting and agronomy. Background technique [0002] Rice is the most important fine grain crop in the world's cultivated area and total output of grain crops, second only to wheat. my country is one of the origins of rice, with a cultivation history of more than 7,000 years. The annual planting area is about 33 million hectares, accounting for 23% of the world's total rice area, ranking second, and its output accounts for 39% of the world's total output. First, the high and stable yield of rice is particularly important to my country's food security. Traditionally, rice cultivation is mainly based on flooded water, but my country is one of the 13 water-poor countries in the world, and agricultural water consumption accounts for 70-80% of the total water consumption, especially in arid ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a cultivation method of rice with less tillage and dry direct seeding, which saves the seedling field stage to a certain extent, and better solves the problems of seedling cultivation and transplanting, high labor intensity, and low fertilizer and water use efficiency in traditional rice cultivation techniques. technical issues