Organic rice cropping method

Abstract

The invention discloses an organic rice cropping method employing a paper film-covering weeding method and belongs to the technical field of rice cropping. The organic rice cropping method includes performing early field management; spreading paper film; transplanting rice seedlings; further performing weeding in the manual and ecological manner. According to the arrangement, unsprouted seedlings of barnyard grass, Monochoria vaginalis and Sedge floating on the water surface can be taken or removed by the field managements such as early field steeping and drainage; the paper film covering the field functions in preventing sunlight transmission and reducing oxygen content of the water under the paper film, and in this way, advantages required by rooting, sprouting and growing processes are unavailable for the seedlings growing slowly, and the seedlings die; owing to the later manual hooking manner or the manner of releasing ducks on fields, weeds such as water cabbage survived under the paper film are removed thoroughly; degradation of the paper film allows organic content and soil activity of the shallow tillage layers of the fields to be further improved, the use of chemical herbicides is avoided, and rice quality is increased. The organic rice cropping method can be popularized and applied in organic rice cropping areas.

Description

technical field [0001] The invention relates to the field of rice cultivation, in particular to organic rice cultivation technology. technical background [0002] Rice is an important food crop and is grown in large quantities in my country. The safety of rice quality greatly affects the food security of our country's dining table, and the organic cultivation of rice is a requirement for people to protect the ecology and ensure food safety. In the existing rice cultivation, people usually use various chemical pesticides and herbicides to prevent and control diseases, insect pests and weeds. This method is costly, has large pesticide residues, and causes pollution and damage to soil and water bodies. Weeding in organic paddy fields requires the use of other weeding methods because pesticides cannot be sprayed. The heavy labor and high cost have become important factors hindering the promotion of organic paddy. Therefore, there is an urgent need for safe and labor-saving weed...

AI Technical Summary

Problems solved by technology

In the existing rice cultivation, people usually use various chemical pesticides and herbicides to control diseases, insect pests and weeds. This method is costly, has large pesticide residues, and causes pollution and damage to soil and water bodies.

For weeding in organic rice fields, because pesticides cannot be sprayed, other weeding methods need to be used. The large labor load and high cost have become important factors hindering the promotion of organic rice. Therefore, there is an urgent need for safe and labor-saving weeding methods to solve the problem of weeding in organic rice fields.

At present, weeding in organic rice fields mainly relies on manual weeding, which is costly and inefficient

There is also the practice of weeding by spreading rice bran in China, but it usually requires more labor, and rice bran sprinkled on the rice seedlings also affects the photosynthesis of the rice seedlings, and it is also prone to aggregation due to wind force when sprinkled on the water surface. Heap, the settlement is unevenly distributed on the soil surface, and even agglomerates into agglomerates for a long time, causing seedling burning

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