No-tillage and drought-resistant rice cultivation method and no-tillage digging device

Abstract

The invention discloses a no-tillage and drought-resistant rice cultivation method. The no-tillage and drought-resistant rice cultivation method comprises the following steps of rice seedling raising, transplantation, field management and harvesting. In the rice seedling raising process, a no-tillage digging device is adopted, and the drought-resistant ability of rice seedlings under drought rice seedling raising condition is improved. A rice seedling raising is adopted in the transplantation process, and the no-ploughing rice transplantation efficiency is improved. The water amount for rice field irrigation is controlled by adopting a special irrigation method, and the water demand strength at an initial rice transplantation stage is remarkably reduced. The invention further discloses a no-tillage digging device. The no-tillage digging device comprises a drill bit, wherein an arc-shaped blade is arranged at one end of the drill bit, the other end of the drill bit is connected with a controller through a connecting rod, and the controller is connected with a fan through a lead. The device overcomes the shortcoming of difficult no-ploughing rice transplantation.

Description

technical field [0001] The invention belongs to the technical field of rice cultivation, and in particular relates to a no-tillage and drought-resistant cultivation method for rice and a no-tillage nest digging device. Background technique [0002] The frequency of spring drought and summer drought in Sichuan is relatively high. Statistics show that from 2001 to 2010, the frequency of spring drought (March to April) in Sichuan was 486 counties, and the frequency of summer drought (May to June) was 631 counties. It is 2-2.5 times that from 1971 to 1980. During the period from May to June (summer drought-prone period) when seedlings are transplanted to greening, it is often impossible to transplant rice due to lack of water. The current ultra-sparse sowing and dry seedling raising technology adopts the method of prolonging the age of seedlings and delaying the transplanting period of rice. , and then avoid the problem of water shortage during the transplanting period to a cer...

AI Technical Summary

Problems solved by technology

Usually the rice fields in Sichuan start raising seedlings in early April, transplanting from early to mid-May, and the seedling age is 40-50 days. If there is no rainwater supplement from late May to early June, the seedling age of dry seedlings is too high, which is not conducive to the growth of seedlings after transplanting. survival and tillering

[0003] At the same time, the current rice transplanting measures (throwing seedlings, nest transplanting, and mechanical transplanting, etc.) all need to flood the field in advance, and the water demand is relatively large. Difficulty in transplanting

[0004] The current rice transplanting method requires shallow water irrigation (2-3cm water layer) to promote rice turning green and tillering after rice transplanting. However, in the case of summer drought, the water source is insufficient, and it is difficult to fully irrigate to maintain the shallow water layer, which affects rice turning green and tillering

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