No-tillage seedling-throwing overall aerobic cultivation method for oil crop-medium rice fixed compartment ditch

Abstract

The invention belongs to the field of rice cultivation, and particularly relates to a cultivation method suitable for no-tillage rice in a fixed compartment of an oil crop-medium rice field. The cultivation method comprises the following steps that: (1) rice seeds are coated by using dry-raised nurse, thick mud and dry fine soil serving as coating agents, wherein the components comprise 7.9 to 12.5 percent of dry-raised nurse, 25 to 26.3 percent of rice seeds, 12.5 to 13.2 percent of thick mud with 37 percent of water content and 50 to 52.6 percent of dry fine soil with 3 percent of water content in percentage by mass; the rice field is finished as required and the soil moisture is kept; and keeping the seedling age at 15 to 18 days; (2) the compartment width of the oil crop field is 1.2 meters, the width of the ditch is 0.3 meter, and the depth of the ditch is 0.25 meter; the rape seedlings are applied to the field; a ternary compound fertilizer of which pure nutrients comprise 15 percent of N, 15 percent of P2O5 and 15 percent of K2O is applied, and 30 kilograms of pure nitrogen is applied in each mu; 5.80 kilograms of zinc is applied in each mu; and 4.8 kilograms of boron fertilizer is applied in each mu, and the ditch is kept full of water; (3) rice seedlings with 50 to 100 grams of soil in each seedling in 15 to 18 days are directionally thrown according to a row space of 20 centimeters; and (4) the ditch is kept with water and the compartment surface has no water after throwing the seedlings till the heading stage, and dry and wet alternated cultivation is adopted from the grain filling stage to the maturation stage. Compared with the conventional method, the yield is averagely increased by 6.7 percent.

Description

technical field [0001] The invention belongs to the technical field of rice cultivation, and in particular relates to a whole-process aerobic cultivation method for middle-aged rice in fixed compartments without tillage and throwing seedlings. The method is a cultivation method that can increase the yield of middle-aged rice and reduce gas emissions from soil greenhouses. Background technique [0002] Rice is the most important grain crop in my country, and its total output accounts for 35% of the total grain output in China. It plays a pivotal role in my country's planting industry and even the entire agricultural and rural economic work. With the rapid development of the economy in the past 30 years, a large number of rural laborers have transferred to the secondary and tertiary industries, and the rural labor force is obviously insufficient. Although traditional intensive farming can obtain high yields, it is labor-intensive and time-consuming, and the cost of farming is ...

AI Technical Summary

Problems solved by technology

[0006] The existing technologies are aimed at no-tillage direct seeding or seedling throwing of rice, without considering the influence of the aerobic environment produced by irrigation on the growth of rice. Cultivation method: After the previous crop (rape) is harvested, soak the field for 2 days, do not plow the soil, apply herbicides, and directly optimize the fixed throwing of 15-18-day-old seedlings with soil

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