Method for fertilizing tobacco leaf

Abstract

The present invention provides a method for fertilizing tobacco leaf, nutrient absorption content of flue-cured tobacco during growth process is different, the whole growth period is divided into two stages for fertilization, and the method comprises the following steps: a, during transplanting of the flue-cured tobacco, 7.5kg of nitrate ammonium phosphate with the nitrogen content of 30%, 2.5kg of calcium superphosphate with the phosphorus content of 16% and 27.5kg of a potash fertilizer are applied to a field by row fertilization as a base fertilizer; and b, in about 30th d of the growth of the flue-cured tobacco, topdressing of 6kg of the potash fertilizer is performed while earthing; during the whole growth and development period of the flue-cured tobacco, in each mu of the field, total amount of 25-35kg of the potash fertilizer, total amount of 7.5-8.0kg of the nitrate ammonium phosphate with the nitrogen content of 30%, and total amount of 2.5-3.0 kg of the calcium superphosphate with the phosphorus content of 16% are applied. The method improves the baking quality and drought resistance of the flue-cured tobacco, infection rate of wildfire disease and tobacco mosaic disease of the flue-cured tobacco are reduced respectively by 50% and 23%, and the method meets potassium absorption in the growth period of the flue-cured tobacco, and has very strong practicability.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, and specifically discloses a method for fertilizing tobacco leaves. Background technique [0002] Flue-cured tobacco is a kind of hobby economic crop. Among the whole tobacco plant, the tobacco leaf has the highest value. During the planting and growth of flue-cured tobacco in the field, it is easily affected by factors such as bacteria, viruses, or natural climate, which will cause various diseases in the leaves, roots or stems. A virus disease or natural weather spots directly affect the normal growth of flue-cured tobacco and the edible value of the tobacco leaves after curing, and reduce the quality of the tobacco leaves. When various diseases occur, pesticides are often used to reduce flue-cured tobacco diseases and insect pests. To a certain extent, it can reduce the disease infection rate of flue-cured tobacco and reduce the loss of tobacco farmers. However, the spraying of p...

AI Technical Summary

Problems solved by technology

[0002] Flue-cured tobacco is a kind of hobby economic crop, and the tobacco leaves are the most valuable in the whole tobacco plant. During the planting and growth of flue-cured tobacco in the field, it is very susceptible to factors such as bacteria, viruses or natural climate, which will cause various kinds of growth in the leaves, roots or stems. A virus disease or natural weather spots directly affect the normal growth of flue-cured tobacco and the edible value of the tobacco leaves after curing, and reduce the quality of the tobacco leaves. When various diseases occur, pesticides are often used to reduce flue-cured tobacco pests and diseases. To a certain extent, the disease rate of flue-cured tobacco can be reduced and the loss of tobacco farmers can be reduced. However, the spraying of pesticides directly leads to the absorption of toxic components by leaves, which pass through the human body when processed into cigarettes. At the same time, Yunnan, Guizhou and other main flue-cured tobacco production areas often cause major natural disasters due to the low rainfall during the important growth period of flue-cured tobacco and the failure of tobacco farmers to irrigate the dry flue-cured tobacco in time. The economic benefits of tobacco farmers have been greatly lost

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