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Rice no-tillage direct seeding and ratoon rice planting method in winter paddy field area

A technology of no-tillage and planting method of rice, applied in the direction of rice cultivation and the like, can solve the problems affecting the popularization of no-tillage and direct seeding technology of rice, and achieve the effects of solving the high production cost, high yield and increasing yield.

Inactive Publication Date: 2019-02-19
RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
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Problems solved by technology

This undoubtedly affects the promotion of rice no-tillage direct seeding technology in winter paddy field ratooning rice planting areas

Method used

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  • Rice no-tillage direct seeding and ratoon rice planting method in winter paddy field area

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Embodiment

[0061] Planting technology of no-tillage direct seeding and storage of ratooned rice in winter paddy fields of the present invention:

[0062] (1) Conventional rice:

[0063] 1) Variety selection Huanghuazhan and Jinnongsimiao (conventional rice, growth period 130 days) were selected for the first season.

[0064] 2) Paddy field preparation 8 days before sowing, spray herbicides to kill weeds, and soak the field with water to soften the surface soil of the paddy field, and then evenly ditch and separate compartments.

[0065] 3) Sowing and seed treatment Sow on March 17, the amount of seed used is 30kg·hm -2 , Soak the seeds for 48 hours before sowing. The seeds are not broken, that is, the blind valley. After drying, mix the bird repellent to prevent bird damage, and then spread the rice seeds on the surface of the prepared paddy field, basically spreading evenly.

[0066] 4) Weed control Apply chemical herbicides on the 3rd day after sowing to control field weeds, and then...

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Abstract

The invention relates to a rice no-tillage direct seeding planting technology, in particular to a rice no-tillage direct seeding and ratoon rice planting method in a winter paddy field area. Researchand improvement are mainly carried out on the existing no-tillage direct seeding technology on ratoon rice planting in the area of winter paddy field, and the method is mainly characterized in that nitrogen fertilizer is applied four times: a seedling fertilizer is applied in the two-leaf one-heart stage of the first-season, a tillering fertilizer is applied in the tillering stage of the first-season, a panicle fertilizer is applied in the panicle differentiation stage of the first-season, a grain bud fertilizer is applying in the full heading stage of the first season; the application mass ratio of the nitrogen fertilizer in the seedling fertilizer, the tillering fertilizer, the panicle fertilizer and the grain bud fertilizer is 1.4-1.6:1.4-1.6:0.9-1.1:1; The total application amount of nitrogen fertilizer is 150-180 kg hm-2. The Rice no-tillage direct seeding and ratoon rice planting method in winter paddy field area has the advantages that: 1) compared with the local traditional cultivation method of tillage transplanting and ratoon rice planting, the method saves the cost and improves the efficiency in 2358-3053RMB hm-2; and 2) compared with the existing no-tillage direct seeding planting technology, the yield of the regeneration season is obviously improved, and the technical problem that the existing no-tillage direct seeding technology is not suitable for planting the ratoon rice in the winter paddy field area is solved.

Description

technical field [0001] The invention relates to a rice planting technology, in particular to a no-tillage and direct seeding planting technology of rice. Background technique [0002] Due to the rapid development of urbanization and industrialization in our country, the paddy fields that can be used for rice cultivation in the main grain producing areas are rapidly decreasing. Based on factors such as the decrease in the growth rate of per unit yield and the decrease in planting area, increasing the multi-cropping index of cultivated land has become an effective way to ensure the continuous growth of my country's total grain output. However, the traditional double-cropping rice planting is restricted by factors such as labor shortage and low efficiency. The sown area has dropped from 71% in the 1970s to about 40% in recent years. [0003] The ratooning rice is a kind of rice that uses the dormant buds that survived on the rice pile after harvesting in the first season, and ...

Claims

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Application Information

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IPC IPC(8): A01G22/22
CPCA01G22/22
Inventor 蒋鹏徐富贤张林刘茂周兴兵朱永川郭晓艺熊洪陈琳
Owner RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
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