A kind of herbicide-free rice direct seeding cultivation method

Abstract

The invention discloses a herbicide-free rice direct seeding cultivation method, which comprises the following steps: selecting a rice variety resistant to flooding and low oxygen in the germination stage, soaking and accelerating germination; controlling the flooding depth of the paddy field to 2cm±1cm, and raking the field after applying basal fertilizer , so that the soil particles are fully suspended. Immediately after the harrowing is completed, the rice seeds with broken breasts are sown. After the rice seeds settle, they are covered by the suspended soil particles that settle later. After sowing, the water is not drained. After the mud is clarified, the water depth at the highest part of the soil on the field surface is controlled to be greater than 1cm; After the seedlings grow to 3 leaves and 1 heart, control the water depth at the highest part of the soil on the field surface to be greater than 2cm, and keep the field surface flooded; after the seedlings grow to 5 leaves and 1 heart, manage them according to conventional fertilizer and water, and do not use herbicides during the entire cultivation process. The invention not only reduces the production cost of rice planting, but more importantly does not use herbicides, is conducive to the construction of agricultural ecological environment, meets the needs of sustainable development of agricultural economy, and is beneficial to improving people's quality of life and health.

Description

technical field [0001] The invention belongs to the field of rice cultivation, and in particular relates to a herbicide-free rice direct seeding cultivation method. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, the labor cost of agricultural production has risen rapidly. Simplifying agronomic techniques has become an urgent need for agricultural production, and farmers' spontaneous direct seeding of rice has emerged as the times require. In traditional rice production, the cost of raising seedlings and transplanting per mu of paddy field is more than 200 yuan. Direct seeding of rice not only saves the cost of raising seedlings and transplanting, but more importantly, reduces the demand for labor in rice production and promotes agricultural labor. transfer to other industries. [0003] However, the government management department has not supported direct seeding of rice. There are three main re...

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Problems solved by technology

[0003] However, the government management department has not supported direct seeding of rice. There are three main reasons. One is that the rice field must be drained before direct seeding, and the water discharged after applying basal fertilizer will pollute the river water; , weed seeds also germinate at the same time, so the amount of herbicides used is increasing. Excessive application of herbicides is not only not conducive to the improvement of the sanitary quality of agricultural products and the construction of farmland environments, but also induces stronger weed resistance; the third is The seeds of current rice varieties are not resistant to flooding, and there are no seedlings in areas that have not been drained, and the direct seeding yield of rice is very unstable due to the serious lack of seedlings

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