Annual two-planting and four-harvesting planting method for red soil paddy field

Abstract

The present invention discloses an annual two-planting and four-harvesting planting method for red soil paddy field. The method comprises the following steps of (1) sowing rape in late October, applying basic fertilizer in combination with sowing, applying additional fertilizer for the first time in late December or in early January of next year, picking rape bolts in late January of next year, instantly applying nitrogen fertilizer for the second time after rape bolt picking, and mechanically harvesting rape seeds in mid-May; (2) planting middle-season rice in a field by throwing in mid-May,applying the basic fertilizer in combination with mechanical land preparation of the field, broadcasting the additional fertilizer to the whole field for the first time in a tillering stage, continuing to broadcast the additional fertilizer for the second time in a heading stage, and finally broadcasting the additional fertilizer for the third time 5-7 days before harvesting; mechanically harvesting the middle-season rice in late August; and mechanically harvesting ratoon rice in later October. In an annual rice-rape rotation manner, planting is performed twice and harvesting is performed forfour times; and paddy-upland rotation is realized, and agricultural products are improved in type, quantity and quality, so that guarantee of grain and oil self-supply is improved and agricultural product supply is enriched and optimized.

Description

technical field [0001] The invention relates to the technical field of agricultural production, and more specifically relates to a planting method of two crops and four harvests in a red soil paddy field every year. Background technique [0002] The red soil paddy field has a large area and is the main rice production base and multi-crop production carrier. The three-crop crop rotation system for oily rice was once the main planting mode. Planting technology, grain and oil prices, rural labor, agricultural mechanization and other comprehensive factors have changed. Secondary cropping such as oil-rice rotation and rice-rice continuous cropping has become the main planting mode. Anniversary's "one-kind-one-harvest" single-cropping model, which produces only one crop of rice, is getting larger and larger, with a multiple cropping index of only 1.0. Autumn and winter idle or winter idle is vacant, and light, temperature, water, heat, and land resources are wasted. [0003] Obv...

AI Technical Summary

Problems solved by technology

[0003] Obviously, the annual "three harvests" was the main planting mode of red soil paddy fields. The multiple cropping index of red soil paddy fields was 3.0, which made full use of light, temperature, water, heat, and soil resources to ensure high crop yields and soil fertility. The high-intensity and labor-intensive annual "three types of income" model is no longer suitable for the current agricultural production in the new era. There is a shortage of strong rural laborers going out to work. The annual agricultural mechanization and intelligence have not yet been realized and covered. Modern agricultural production is in urgent need and has entered the stage. Light and simplified production mode

Images