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Mixed sowing and companion planting method for ensuring rice production safety

A rice and mixed planting technology, applied in rice cultivation, botany equipment and methods, plant cultivation, etc., can solve the problems of elimination, infection of vertical disease-resistant varieties, etc., to slow down the spread speed, good effect of pest control, delay disease hair time effect

Inactive Publication Date: 2014-12-17
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, great progress has been made in rice disease-resistant breeding in our province, and batches of resistant rice varieties have been bred. However, these resistances belong to vertical disease resistance, and large-scale single promotion in production will lead to infection Its physiological race rises to the dominant race, so that the vertical disease-resistant varieties are infected and eliminated

Method used

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  • Mixed sowing and companion planting method for ensuring rice production safety
  • Mixed sowing and companion planting method for ensuring rice production safety
  • Mixed sowing and companion planting method for ensuring rice production safety

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mixed sowing and mixed planting of Zhendao No. 11 and Zhendao No. 18:

[0026] Variety introduction (for data, please refer to the 2011 Jiangsu Provincial New Rice Variety Regional Trial Summary - 2011 Early Maturity and Late Japonica Regional Trial Summary Table of Agronomic Characters and Yield, Zhendao 18 is Morning and Evening District 02, Zhendao 11 is the comparison variety Morning and Evening District 14) :

[0027] Zhendao 11: formerly known as "Zhendao 413", is a new early-maturing late japonica variety successfully bred by the Zhenjiang Institute of Agricultural Sciences in the hilly area of ​​Jiangsu in 2004. The whole growth period is 162.67 days, the plant height is 99.9cm, and the thousand-grain weight is 26.77g. After five years of intermediate trials and demonstration trials, it has shown excellent quality, high yield, good yield stability, strong disease resistance (good resistance to stripe leaf blight and bacterial blight), and suitable ripening perio...

Embodiment 2

[0043] It is basically the same as Example 1, except that step (1) selects medium-maturing medium-maturing japonica rice varieties Wuyunjing No. 21 and Zhendao 88 for mixed sowing and mixed planting. In consideration of the reduced resistance of rice varieties, in Example 2, a susceptible high-yielding variety Wuyunjing No. 21 was selected as a mixed variety to investigate the mixed planting effect of the susceptible high-yielding variety and the disease-resistant variety):

[0044] Wuyunjing 21 (Wuyun 2330) is a medium-maturing medium-maturing japonica rice variety, which was bred in 2003 by the Yun9707 / Yun9726 hybrid of the Changzhou Wujin District Agricultural Science Research Institute. The plant height is about 97 cm, the whole growth period is about 151 days, and the thousand-grain weight is about 26 grams. The average yield per mu in 2006 was 607.5 kg. Inoculation identification is moderately susceptible to bacterial blight, panicle blast, and highly susceptible to shea...

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Abstract

The invention relates to a mixed sowing and companion planting method for ensuring rice production safety, in particular to mixed sowing and companion planting of two or more superior, high-yield and disease-resistant rice varieties which are similar in plant heights, growth periods and grain shapes. Each growth period of certain kinds of rice varieties from a vegetative growth period to a reproductive growth period is matched, and is suitable for unified nutrient and water management on a field, so that smooth application of a high-yield rice culture technique is ensured, the rice yield is increased, the damage degrees of plant diseases are lowered and relieved, variety resources are protected, the pathogeny time is delayed, the resistance of a rice field to burst diseases is improved, and the rice production safety is ensured.

Description

technical field [0001] The invention relates to the field of rice cultivation methods, in particular to a mixed sowing and mixed planting method for ensuring rice production safety. Background technique [0002] In phytopathological research, plant disease resistance is divided into vertical disease resistance and horizontal disease resistance. Vertical resistance (vertical resistance) is usually controlled by a single or a few major genes, and the varieties have higher disease resistance. Therefore, most of the disease-resistant varieties widely used in agricultural production are vertical-resistant varieties. However, when a variety with this type of resistance is promoted on a large scale in production, it is easy to cause the physiological race that infects it to rise to the dominant race, so that the vertically resistant variety is infected and eliminated, and the disease resistance of the resistant variety Sex cannot be stable and persistent. When a disease breaks ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01C1/00A01G22/22
Inventor 余波林添资景德道龚红兵盛生兰钱华飞周义文李闯曾生元
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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