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Method for preventing diseases and reducing disasters of organic rice

An organic rice and irrigation technology, applied in rice cultivation, botanical equipment and methods, horticulture, etc., can solve problems such as reducing the rice planting rate, and achieve the effects of cost saving, simple method and convenient use.

Inactive Publication Date: 2015-05-13
湖南省安邦农业研究院
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for disease prevention and disaster reduction of organic rice, which does not use pesticides, does not cause environmental pollution and pesticide residues in agricultural products; does not reduce the rice planting rate

Method used

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  • Method for preventing diseases and reducing disasters of organic rice

Examples

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Embodiment

[0020] In this example, the experimental fields in Pengjia, Xianshan and Jiushi, Taiyuan were selected, and the cultivation and management were at the same level without using any pesticides. Before the rice was planted in Examples 1-6, the farmland was irrigated with 3 to 5 cm of deep water, and turned over. Plowing and leveling; after 2 hours, salvage the sundries floating on the water surface; first fish the upper field, then the lower field, and then put the salvaged sundries in one place, dry them and burn them or bury them deeply.

[0021] The salvage tool used in the embodiment 1-6 is earthen, long 70cm, front opening 30, the bottom width of the back is 45cm, and depth is 25cm, and the gap size is not more than 0.4cm, is generally 0.1-0.4 cm, preferably 0.2 cm. cm.

[0022] In Comparative Example 1-2, no Sclerotia salvage was carried out. Table 1 shows the survey results of residual sclerotia in paddy fields. Table 2 shows the results of field investigation of sheath ...

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Abstract

The invention provides a method for preventing diseases and reducing disasters of organic rice. Deep water is poured on farmland by 2-7 cm, after ploughing and leveling are conducted, sundries floating on the water surface are salvaged after one to three hours, the sundries, including sclerotium, floating on the water surface are salvaged, and salvaged sundries are concentrated to be put at one position to be burnt or buried deep after being aired. The technological method is simple, use is convenient, cost is saved, time and labor are saved, the environment cannot be polluted, and pesticide residues of agricultural products are avoided.

Description

technical field [0001] The invention relates to the technical field of biological control of agricultural pests, in particular to a method for disease prevention and disaster reduction of organic rice. Background technique [0002] At present, more than 60% of the population in my country takes rice as the staple food. According to the estimates of the Food and Agriculture Organization of the United Nations, the annual loss of rice diseases in the world accounts for about 10% of the total output. For example, sheath blight, which occurs from rice seedlings to maturity, generally results in a reduction of 5%-10%. 20%-30% reduction in production, serious damage to 40%-50% reduction in production, and even cause lodging and loss of harvest. It can be seen that this disease damages crops, especially in southern rice areas, where it is common and serious. [0003] For many diseases of rice, the primary source of infection is usually sclerotia, such as sheath blight. The number o...

Claims

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Application Information

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IPC IPC(8): A01G13/00
CPCA01G13/00A01G22/22
Inventor 曾花生
Owner 湖南省安邦农业研究院