Green planting method for controlling diseases and insect pests in rice field

A planting method, technology of pests and diseases, applied in the field of plant cultivation, to achieve the effect of increasing the quantity, high economic benefit, and reducing the amount of pesticide use

Inactive Publication Date: 2018-03-06
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are no related reports on the use of upland rice (especially shanlan rice) and rice intercropping, planting nectar

Method used

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  • Green planting method for controlling diseases and insect pests in rice field
  • Green planting method for controlling diseases and insect pests in rice field
  • Green planting method for controlling diseases and insect pests in rice field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Select tall stalk rice as the intercropping variety, and select dwarf variety for hybrid rice. Tall-stalked varieties are 20 cm taller than short-stalked varieties, and the maturity period is basically the same, no more than 10 days before and after.

[0026] (2) Dwarf varieties are cultivated in the conventional row planting method. The plant spacing, row spacing and density are the same as the conventional method, and the planting density is the same. The inter-row plants are 23.3cm×23.3cm, 3 plants per hole, and the density of mountain bar rice is 3,000 holes. / 667㎡, about 13,600 holes / 667㎡ for hybrid rice; the total number of holes for paddy field plants is controlled between 16,700 holes / 667㎡, and transplanting is carried out according to the row ratio of mountain bar rice: hybrid rice = 2:2. That is to keep the current cultivation method of hybrid rice unchanged, and plant 2 more rows of high-stalk mountain bar rice varieties every 2 rows in the hybrid rice fi...

Embodiment 2

[0029] (1) Select tall stalk rice as the intercropping variety, and select dwarf variety for hybrid rice. Tall stalk varieties are 30 cm taller than short stalk varieties, and the maturity period is basically the same, no more than 10 days before and after.

[0030] (2) The dwarf varieties are cultivated in the conventional row planting method. The plant spacing, row spacing and density are the same as the conventional method, and the planting density is the same. The inter-row plants are 16.7cm×16.7cm, 5 plants per hole, and the density of mountain bar rice is 4,000 holes. / 667㎡, about 14,000 holes / 667㎡ for hybrid rice; the total number of holes for paddy field plants is controlled at 17,000 holes / 667㎡, and transplanting is carried out according to the inter-row ratio of mountain bar rice: hybrid rice = 2:2. That is to keep the current cultivation method of hybrid rice unchanged, and plant 2 more rows of high-stalk mountain bar rice varieties every 2 rows in the hybrid rice f...

Embodiment 3- Embodiment 10

[0033] Each operation in embodiment 3-10 is all identical with embodiment 1, and difference is, the inter-row ratio of mountain bar rice and hybrid rice in embodiment 3 is 2:4, and the inter-row ratio of mountain bar rice and hybrid rice in embodiment 4 It is 2:6, and the inter-row ratio of rice in mountain fence and hybrid rice is 2:8 in embodiment 5, and the ratio between rice in mountain fence and hybrid rice in embodiment 6 is 2:10, and in rice fence in embodiment 7 and hybrid rice The inter-row ratio is 2:12, and the inter-row ratio of the mountain hurdle rice and the hybrid rice in embodiment 8 is 2:14, and the inter-row ratio of the mountain hurdle rice and the hybrid rice in the embodiment 9 is 2:16, and the middle hurdle rice in the embodiment 10 is 2:16. The inter-row ratio of rice and hybrid rice was 2:18.

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Abstract

The invention provides a green planting method for controlling diseases and insect pests in a rice field. While planting rice, upland rice is interplanted, and different types of rice are intercropped by utilizing the characteristics of large genetic background differences of rice varieties, which has a very obvious control effect on rice blast , the control effect is as high as 68.53%, which is a major innovation in the continuous control of rice blast using biodiversity at home and abroad. Compared with the net planting, the yield of the intercropping model of hybrid rice and bar rice increased by 19.71%. The present invention further adopts the planting mode of planting nectar source plants such as Thioflower and Zinnia on the ridge of rice fields (especially the mixed planting of Thioflower and Zinnia in proportion), increases biodiversity, and adjusts the insect population in the farmland ecology structure, increase the number of natural enemies of pests (such as beneficial insects such as parasitic wasps), and reduce crop pests.

Description

technical field [0001] The invention relates to the technical field of plant cultivation, in particular to a green planting method for controlling diseases and insect pests in paddy fields. Background technique [0002] Rice is one of the most important food crops in my country. The increase of rice production and the control of diseases and insect pests have always been the focus of research by scientists. In the past, a large amount of pesticides and fertilizers were used in the process of rice planting. However, the extensive use of pesticides and fertilizers not only reduces soil The low nutrient content makes the soil stamina insufficient, and causes a series of problems such as the decline of rice field biodiversity (especially beneficial natural enemies), the improvement of resistance to diseases and insect pests, and the quality and safety of rice. Therefore, new environmental conditions are adopted in production practice. Friendly controls are imperative. [0003] As...

Claims

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Application Information

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IPC IPC(8): A01G22/00A01G22/22
Inventor 袁潜华柯智何光亮吴川德吴丹何美丹
Owner HAINAN UNIVERSITY
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