Synchronously ditching, ridging, fertilizing and sowing method for precise direct hole-sowing of rice

Abstract

The invention belongs to a sowing method of crops, in particular to a synchronously ditching, ridging, fertilizing and sowing method for precise direct hole-sowing of rice, which comprises the following steps: a. simultaneously arranging a plurality of parallel water storage ditches on a wet mud surface that is leveled; b. forming a ridge with a certain height between every two water storage ditches; c. arranging a sowing ditch and a fertilizing ditch on each ridge; d. adopting a hole-sowing mode to sow rice sprouts into the sowing ditches; and e. applying fertilizers into the bottom of the fertilizing ditches, adjusting the fertilizing amount according to agronomic requirements, earthing and flatly covering after fertilizing. The invention can realize that slow release fertilizers, controlled release fertilizers or other fertilizers can be quantitatively applied near root systems of rice in a targeted way, be convenient for the absorption of root systems and the growth of rice, decrease the using amount of fertilizers and further reduce the production cost of the rice and the pollution to the environment.

Description

technical field [0001] The invention belongs to a sowing method of crops, in particular to a synchronous ditching, ridging, fertilizing and sowing method for precise hole-seeding of rice. Background technique [0002] At present, the amount of fertilizer applied per unit of cultivated land in my country is three times the world's average level, but the utilization rate is low. The seasonal utilization rate of nitrogen fertilizer is only about 30%, and that of phosphorus fertilizer is only 20%, which is about 20 percentage points lower than that of developed countries. This is caused by unreasonable fertilization. Economic losses are as high as 50 billion yuan per year. Experts in the industry appeal that my country should speed up the promotion of slow-release fertilizer and controlled-release fertilizer technology, improve fertilizer utilization, reduce farmers' losses, and reduce the resulting environmental pollution. Slow-release fertilizers or controlled-release fertiliz...

AI Technical Summary

Problems solved by technology

However, the existing rice mechanical direct seeding technology at home and abroad generally adopts the flat sowing method. The rice seeds are sown on the mud surface with high moisture content, and the soil is shallow and easy to lodging; the entire field surface must be irrigated during the rice growth period, and the water consumption is large; In the field fertilization management, the method of spreading is widely used, which will easily cause fertilizer loss, reduce the utilization rate of fertilizer, and aggravate the pollution to the environment.

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