A fertilization method that can effectively improve the low magnesium stress in flue-cured tobacco in the middle and late stages

A fertilization method and flue-cured tobacco technology are applied in the field of flue-cured tobacco cultivation, which can solve problems such as reducing the quality of tobacco leaves, and achieve the effects of facilitating nutritional balance, improving symptoms of low magnesium stress, and changing wetness.

Active Publication Date: 2020-11-03
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a large amount of magnesium fertilizer is applied when flue-cured tobacco is transplanted, it will seriously inhibit the absorption of potassium by flue-cured tobacco and reduce the quality of tobacco leaves.

Method used

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  • A fertilization method that can effectively improve the low magnesium stress in flue-cured tobacco in the middle and late stages
  • A fertilization method that can effectively improve the low magnesium stress in flue-cured tobacco in the middle and late stages
  • A fertilization method that can effectively improve the low magnesium stress in flue-cured tobacco in the middle and late stages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:

[0031] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50 mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 35 days, with beautiful growth and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;

[0032] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%...

Embodiment 2

[0035] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:

[0036] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 33 days, have delicate growth, and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;

[0037] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%)...

Embodiment 3

[0040] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:

[0041] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 37 days, have delicate growth, and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;

[0042] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%)...

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Abstract

The invention discloses a fertilization method capable of effectively improving low magnesium stress in the middle and later periods of fuel-cured tobacco. The fertilization method comprises the following steps of tobacco seedling transplanting, foliage spraying and root topdressing. Accordingly, fuel-cured tobacco magnesium deficiency symptoms caused by magnesium deficiency of soil can be effectively relieved, absorption of magnesium and potassium by the fuel-cured tobacco is promoted, fuel-cured tobacco growth and nutrient balance of tobacco plants are facilitated, and the important significance of reducing fertilizer application and increasing the additional fertilizer utilization rate is achieved; the economic benefit of tobacco leaves are increased, income increasing of tobacco growers is promoted, the effect is obvious, the cost is low, and expanded promotion is facilitated.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco cultivation, and in particular relates to a fertilization method capable of effectively improving low-magnesium stress in the middle and later stages of flue-cured tobacco. Background technique [0002] Flue-cured tobacco is an important economic leaf crop. Due to the differences in soil ecological conditions and production technology levels in different regions, the symptoms of defertilization and nutrient deficiency in the middle and late stages of flue-cured tobacco growth are common in all tobacco areas. Flue-cured tobacco has a relatively narrow demand range for medium and trace elements, coupled with the soil’s fixation of nutrients and relatively slow release rate, excessive fertilization of high-input soil is too late to be absorbed by tobacco plants, and it is not only difficult to achieve rapid replenishment and balanced nutrition. Purpose, also can cause the poison and ferti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/45A01C21/00
CPCA01C21/005Y02P60/21
Inventor 邓小鹏童文杰徐照丽何泉李军营祝明亮郑丽华郭应成宋鹏飞
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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