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Method for processing and controlling potato late blight

A potato late blight, treatment and control technology, applied in the field of pesticide application, can solve the problems of inconvenient operation, time-consuming, high cost, etc., and achieve the effect of reducing the amount of bacteria, reducing the degree, and reducing losses

Inactive Publication Date: 2008-05-21
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are labor-intensive when used in the field, have high cost, are inconvenient to operate, have poor effect, and are difficult to meet production needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In Tiejiangping Village, Zhenxiong County, Zhaotong City, Mira is the main local variety, with a completed area of ​​4.0 mu. (1) Seed potato treatment: 1 day before potato sowing, weigh 50 kg / mu of potato seed potato, cut into pieces, stack them in a dry place, flatten, and have a thickness of 10 cm; (2) Weigh 58% of the potato 1 g of manganese zinc wettable powder, dissolved in 0.5 kg of clean water; (3) Use a sprayer to spray the liquid evenly on the potato cubes, until the potato cubes are wet, do not turn the potato cubes, and let them dry naturally; 2 days later, sow . The loss reduction range was 24.5% to 26.6%, with an average of 25.6% (Table 1).

[0014] Table 1. The effect of seed potato treatment on controlling potato late blight in Tiejiangping Village, Zhenxiong

[0015] Name

Embodiment 2

[0017] The seed potato treatment experiment was carried out in Huohong Township, Huize County, with an area of ​​12.5 mu. (1) Seed potato treatment: 2 days before potato sowing, weigh 100kg / mu of potato seed potato, cut into pieces, stack them in a dry place, flatten, and have a thickness of 11 cm; (2) Weigh 58% of the potato Ling manganese zinc wettable powder 2 grams, dissolved in 1 kg of clean water; (3) Use a sprayer to spray the liquid evenly on the potato cubes until the potato cubes are wet, do not turn the potato cubes, and let them dry naturally; 3 days after sowing . The average yield per unit area is 3688.9kg / mu, and the rotten potato rate is 0.2%. The yield of 3 households in the treatment area is 7.8 mu, the average per unit yield is 2835.0kg / mu, and the rotten potato rate is 1.3%. Compared with the non-treatment area, the treatment area: the yield reduction loss was 853.9kg / mu, and the loss reduction was 30.12%; the rotten potato rate was reduced by 84.62% (Tabl...

Embodiment 3

[0021] The seed potato treatment experiment was carried out in Songshan Village, Jing'an Township, Zhaotong City, with an area of ​​19.3 mu. (1) Seed potato treatment: 3 days before potato sowing, weigh 150kg / mu of potato seed potato, cut into pieces, pile up in a dry place, flatten, and have a thickness of 12 cm; (2) Weigh 58% of the potato Ling manganese zinc wettable powder 3 grams, dissolved in 1.5 kg of clean water; (3) Use a sprayer to spray the liquid evenly on the potato cubes until the potato cubes are wet, do not turn the potato cubes, and let them dry naturally; 4 days later sow . The results showed that the yield of seed potato treated fields increased by 16.09% compared with non-treated fields (Table 3).

[0022] Table 3. Effect of seed potato treatment on controlling potato late blight in Songshan Village, Jing'an Township, Zhaotong

[0023] head of household

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PUM

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Abstract

The invention relates to a method of treatment and control of potato late blight of seed potato and pertains to the pesticide application field. The steps of the invention are: (1) seed potato treatment: weighing the seed potato of 50 to 300 kg / Mu to be sliced and piled in a drying place and evened off with thickness of 10 to 15 cm one to three days before potato planting; (2) taking 58 percent of Fubol wettable powder of 1 to 6g / Mu to be dissolved in clean water of 0.5 to 2.5kg ; (3) an atomizer is used for evenly spraying liquor on potato slices and stops spraying when the slices are all wet; the slices are dried naturally without being stirred; (4) the potato slices can be used for planting after 2 to 10 days. The invention overcomes the defects of the prior art of the seed potato treatment, which is particularly aims at the characters that tuber of the seed potato is large, slicing is done before planting, other germina are carried with, phytophthora infestans is serious and the seed potato treatment is difficult, proposes a treatment method with simple and easy application, low cost and high effectiveness and without diffusion of bacterial diseases when in control of the potato late blight.

Description

technical field [0001] The invention relates to a method for controlling potato late blight by treating seed potatoes, and belongs to the field of pesticide application. Background technique [0002] Potato is the fourth largest food crop in the world, and it is also an important grain and vegetable crop in China. Due to its economic value, nutritional value and important role in poverty alleviation in poor areas, the sown area of ​​potato in China has been expanding in recent years. Potato late blight is a destructive disease of potato, which occurs widely all over the world and is seriously harmful. It has been listed as the first major disease of food crops in the world. China loses $1 billion a year due to late blight. In the 1950s, my country conducted a large number of studies on the source of the initial infection, the epidemic process and the epidemic conditions of late blight, which played an important role in guiding the prevention and control. After the 1980s, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/08
Inventor 杨艳丽胡先奇罗文富
Owner YUNNAN AGRICULTURAL UNIVERSITY
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