Organic rice cropping method

A cultivation method and organic rice technology, applied in the fields of rice cultivation, plant cultivation, botanical equipment and methods, etc., can solve the problems that hinder the promotion of organic rice, uneven distribution, and many labors, and achieve easy promotion and application, and improve the quality of rice. Quality, good for the environment

Inactive Publication Date: 2015-04-08
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0015] Example 1:

[0016] A kind of organic rice cultivation method, carries out according to the following steps:

[0017] (1) The field management in the early stage includes soaking the field, draining water, and removing the grass seeds and pests remaining in the rice field: 10 days before rice transplanting, fill the rice with 10 cm of water, soak the field for 5 days and drain it, and use interception and netting during the soaking and drainage period , mechanical blowing and other methods to remove weed seeds and sources of diseases and insect pests floating on the water surface; the field management in the early stage can mainly take away or get rid of barnyardgrass, bermudagrass and sedge seeds;

[0018] (2) Plowing and flat land: 3 days after drainage, use the suspended plow to plow the land 5-8cm deep, and level the field for later use;

[0019] (3) Laying film: choose a gram weight of 50±2g / m 2 For high-density paper film, use a wooden stick to pass through the...

Example Embodiment

[0025] Example 2:

[0026] The organic rice cultivation method described in the present embodiment is based on the foregoing embodiment 1, and has the following differences:

[0027] Step (5) is supplemented by manual weeding: 30-40 days after transplanting the seedlings, carry out manual weed removal once, that is, use a self-made iron hook to manually remove the water cabbage weeds that have not been completely removed from the paper film. In addition to saving time and effort compared with manual weeding.

Example Embodiment

[0028] Example 3:

[0029] The organic rice cultivation method described in the present embodiment, on the basis of the aforementioned embodiment 1, has the following differences:

[0030] The gram weight used in step (3) is 75±2g / m 2 The high-density paper film; the high-density paper film is made of whole plant fiber with straw as the main raw material; its dry tensile strength is ≥ 2kN / m2, wet tensile strength is ≥ 0.8kN / m2, it is opaque and Add other chemical ingredients.

[0031] Step (5) is supplemented by manual weeding: 30-40 days after transplanting the seedlings, carry out manual weed removal once, that is, use a self-made iron hook to manually remove the water cabbage weeds that have not been completely removed from the paper film. In addition to saving time and effort compared with manual weeding.

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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...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G22/22
CPCA01G13/00A01G13/02A01G22/22
Inventor 潘成杰
Owner CHINA AGRI UNIV
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