Control method for tobacco wildfire

A tobacco wildfire disease and tobacco technology, which is applied in the field of tobacco wildfire prevention and control, can solve the problems of ineffective prevention and control of the occurrence and spread of tobacco wildfire disease, and single prevention and treatment methods of tobacco wildfire disease, so as to improve photosynthesis and disease resistance, improve Good effect of disease resistance, ventilation and water retention

Inactive Publication Date: 2015-10-28
昆明日晟农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preventing and treating tobacco wildfire disease, which solves the problem that the existing method for preve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for preventing and treating tobacco wildfire disease, comprising the following steps:

[0044] 1. Agricultural prevention and control:

[0045] (1) Implement crop rotation, specifically a 3-5 year crop rotation system, and do not rotate with Solanaceae, Leguminous, and Cruciferous crops;

[0046](2) Reasonable fertilization and irrigation to prevent excessive nitrogen fertilizer in the later stage, and appropriately increase phosphorus and potassium fertilizers, and topping at the right time to prevent germs from invading from the wound. The weight ratio of P and K is 1:3.5:4; 3-3.5kg of pure nitrogen fertilizer should be applied per mu in medium-fertile fields, and the weight ratio of N, P, and K should be 1:2.5:3. High-fertility fields refer to available nitrogen fertilizer content of 81-100mg / kg, and available nitrogen fertilizer refers to quick-acting nitrogen content of 60-80mg / kg.

[0047] (3) Carry out seed disinfection before sowing, cultivate strong ...

Embodiment 2

[0060] Substantially the same as Example 1, the difference is that 300ml of Difulai tobacco fertilizer is used in every mu of land,

[0061] The dosage of Woyiduo per mu is 150ml of HYT-A, 300ml of HYT-B and 100g of HYT-C.

[0062] The incidence of tobacco wildfire disease in the tobacco field using the control method of this embodiment is reduced by more than 80% compared with the control method of the comparative example, the quality of the tobacco leaves is better than that of the comparative example, and the yield is increased by more than 35% compared with the comparative example.

Embodiment 3

[0064] Substantially the same as Example 1, the difference is that every mu land uses 400ml of Difulai tobacco fertilizer,

[0065] The dosage of Woyiduo per mu is 200ml of HYT-A, 350ml of HYT-B and 80g of HYT-C.

[0066] The incidence of tobacco wildfire disease in the tobacco field using the control method of this embodiment is reduced by more than 70% compared with the control method of the comparative example, the quality of the tobacco leaves is better than that of the comparative example, and the yield is increased by more than 30% compared with the comparative example.

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Abstract

The invention relates to a control method for tobacco wildfire. The control method comprises the following steps: firstly, agricultural control: (1) implementing crop rotation; (2) reasonably applying fertilizer and irrigating to prevent too much nitrogen fertilizer in later period, and appropriately and additionally applying phosphorus and potash fertilizers, and topping in an appropriate period to prevent harmful bacteria from invading from wounds; (3) performing seed disinfection before sowing, cultivating strong seedlings to realize high-ridge drill planting, and appropriately early planting; secondly, soil ecological management: (1) applying a Fudilai tobacco fertilizer, and (2) applying HYT; thirdly, physical control: (1) performing rural sanitation, cleaning residual bodies of diseased or infected plants in time, and destroying by melting or burning in a concentrated manner; fourthly, biological control: (1) using 2000 times of 40% agricultural streptomycin wettable powder for spraying mist in the initial period of disease attack, spraying once every 7-10 days, and continuously spraying 2-3 times; and fifthly, chemical control: (1) using 160 times of a Bordeaux mixture for prevention before the disease attack. The control method adopts the measures of agricultural control, soil ecological management, biological control, physical control, chemical control and the like, so that the incidence rate of tobacco wildfire is greatly reduced, the effect is good, and the yield and quality of tobacco are improved.

Description

technical field [0001] The invention relates to a method for preventing and treating tobacco wildfire disease, belonging to the technical field of plant protection. Background technique [0002] Tobacco, Latin scientific name: Nicotianatabacum, is an important economic crop. Tobacco is an annual herbaceous plant in the family Solanaceae, and there are about 60 species of Nicotiana. Tobacco Wildfire is caused by Pseudomonas syringae Pseudomonas syringae pv. Tabaci. The germs overwinter on the sick body and are spread by wind, rain or insects. The optimum temperature for wildfire disease to occur is 28-32°C. Heavy rainfall and high humidity, especially storms are not only conducive to the spread of bacteria, but also cause wounds on the tobacco plants, resulting in bacterial invasion; after the tobacco field is hit by hail, a large number of holes are formed on the leaves, and germs can invade from the wounds, causing wildfire disease to occur . The climate is dry, the re...

Claims

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Application Information

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IPC IPC(8): A01G13/00
CPCA01G13/00
Inventor 李美琼李佩龙
Owner 昆明日晟农业科技有限公司
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