Lodging-resistant and premature senility-resistant cultivation method for summer corn

A cultivation method and anti-lodging technology, applied in grain cultivation, fertilization methods, fertilization devices, etc., can solve the problems of reducing corn planting benefits, affecting corn ear development, and plant dwarfing biomass, so as to improve the supply of photosynthetic products of plants , SOD activity increases, and the effect of strengthening root system vitality in the later period

Pending Publication Date: 2021-02-09
JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very significant technical risks in inhibiting the elongation of corn internodes and reducing plant height during this period: first, it will cause excessive dwarfing of plants and reduce biomass; second, it will seriously affect the development of corn ear and reduce the The number of grains leads to the risk of yield reduction; third, the occurrence of corn lodging depends on the weather conditions. Generally, the probability of lodging is less than 30%, and lodging can only be prevented. As a result, traditional corn chemical control and anti-lodging measures have a 70% probability of reducing corn planting benefits

Method used

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  • Lodging-resistant and premature senility-resistant cultivation method for summer corn
  • Lodging-resistant and premature senility-resistant cultivation method for summer corn
  • Lodging-resistant and premature senility-resistant cultivation method for summer corn

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The test adopts a split-plot design, corn varieties are used as the main plot, and the tested corn varieties are Zhengdan 309, Denghai 605 and Suyu 29; 30% ethephon 18ml / mu is sprayed at different periods to carry out conditioner chemical control as the sub-plot, respectively. Treatment was carried out at the six stages of maize leaf age remainders of 11, 9, 7, 5, 3, and 1, and one untreated control was set as the control CK, and repeated three times. The corn planting density is 4500 plants per mu. Sow seeds on June 16 and emerge on June 22. Except for processing, field management is the same as field management.

Embodiment 2

[0039] The test adopts a split-plot design, corn varieties are used as the main plot, and the tested corn varieties are Zhengdan 309, Denghai 605 and Suyu 29; 40% ethephon 18ml / mu is sprayed at different periods to control the conditioner as a secondary plot, respectively. Treatment was carried out at the six stages of maize leaf age remainders of 11, 9, 7, 5, 3, and 1, and one untreated control was set as the control CK, and repeated three times. The corn planting density is 4500 plants per mu. Sow seeds on June 16 and emerge on June 22. Except for processing, field management is the same as field management.

[0040] It can be seen from Table 1 that there are significant differences in the number of grains per ear of each maize variety under the conditioner treatment in different periods. The number of grains per panicle of each variety was the highest when the leaf age remainder was 7 leaf stages. The number of grains per panicle of Zhengdan 309, Denghai 605 and Suyu 29 ...

Embodiment 3

[0054] The experiment used Suyu 29 as the material, and sprayed 50% ethephon 18ml / mu for chemical control of the conditioner when the corn leaf age was 7 (the 7th leaf just appeared). The corn planting density is 4500 plants per mu. Other management measures were carried out as usual.

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Abstract

The invention provides a lodging-resistant and premature senility-resistant cultivation method for summer corn, and relates to the technical field of crop cultivation. According to the method, the chemical control period is clearly mastered, and ethephon is sprayed to the upper part leaves when the remainder of the corn leaf age is 7 or the time is defined in 7 days before tasseling, or the leaf age index is 70% or above, meanwhile, according to the method, lodging-resistant variety screening and application, a few-no-tillage stubble precision seeding and pressing technology, a soil testing formula balanced fertilization technology, agricultural machinery and agriculture integration and other matching technologies are integrated and combined, so that the yield of a single corn plant afterchemical control is not affected, the yield increase effect is achieved, and finally organic unification of chemical control, lodging resistance, premature senility prevention and yield increase is achieved.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a cultivation method for lodging resistance and premature aging prevention of summer maize. Background technique [0002] Corn is the third largest grain crop in Jiangsu Province, with an annual planting area of ​​about 430,000 hectares, accounting for about 8% of the grain planting area. It is dominated by summer corn, which is generally concentrated in dry farming areas with relatively poor irrigation conditions. There are many problems. For example, during the growing season of summer maize, natural disasters such as wind, rain, drought, flood, heat, low temperature and little sunshine occur frequently, and corn rust, root rot and corn borer occur all year round, which often induce lodging and yield reduction, seriously threatening the high and stable yield of maize; The main method of soil preparation is stalk crushing and rotary tillage, with a proportion of more t...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01C21/00
CPCA01G22/20A01C21/005
Inventor 顾大路王伟中文廷刚杨文飞钱新民吴雪芬杜小凤
Owner JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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