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Fine fertilizer application method for flue-cured tobaccos K326

A K326, fine fertilization technology, applied in the field of agricultural and forestry fertilizers, can solve the problems of poor quality of flue-cured K326 tobacco leaves, uncoordinated chemical components, etc., and achieve the effects of reducing the loss of excess nutrients, improving economic and environmental benefits, and harmonizing chemical components.

Active Publication Date: 2014-09-17
HONGTA TOBACCO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor quality and uncoordinated chemical composition of the flue-cured tobacco K326 planted in the prior art, the object of the present invention is to provide a fine fertilization method for the flue-cured tobacco K326, so that the tobacco leaf yield of the flue-cured tobacco K326 is guaranteed, and the quality of the tobacco leaves meets the requirements of the industry. The company needs, and at the same time, on the premise of not affecting the output and quality of flue-cured tobacco K326, it can still meet the growth needs of flue-cured tobacco K326 with the least amount of nitrogen, phosphorus and potassium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Sampling the paddy soil in the plowing layer of the tobacco field with a depth of 0 to 30 cm. Take 7 points evenly according to the actual situation of the sampling terrain, mix the soil at the sampling point to obtain a mixed sample, and measure the mixed sample by the conventional alkali solution diffusion method. The alkaline hydrolysis nitrogen content of the sample is X=189.9mg / kg;

[0023] (2) According to the alkaline hydrolysis nitrogen content X obtained in step (1), the nitrogen dosage N is calculated according to the following formula:

[0024] Nitrogen amount N (Kg / mu) = critical value of suitable nutrients for production - X (mg / kg) × 0.15 × correction factor

[0025] =7.816±1.6kg / mu

[0026] Among them, the correction coefficient is =11.831·X -0.722 , the critical value of suitable nutrient: 15.446±1.6kg / mu (the critical value of suitable nutrient is calculated when paddy soil is used as the soil for tobacco planting, among which the flue-cured tobac...

Embodiment 2

[0033] (1) Sampling the red soil in the plowing layer of the tobacco field with a depth of 0-30 cm. Take 9 points evenly according to the actual situation of the sampling terrain, mix the soil at the sampling point to obtain a mixed sample, and measure the mixed sample by the conventional alkaline solution diffusion method The alkaline hydrolysis nitrogen content X=125.14mg / kg;

[0034] (2) According to the alkaline hydrolysis nitrogen content X obtained in step (1), the nitrogen dosage N is calculated according to the following formula:

[0035] Nitrogen amount N (Kg / mu) = critical value of suitable nutrients for production - X (mg / kg) × 0.15 × correction factor

[0036] =8.651±1.6kg / mu

[0037] Among them, the correction coefficient is =11.831·X -0.722 , the critical value of suitable nutrient: 15.446±1.6kg / mu (the critical value of suitable nutrient is calculated when the red soil is used as the tobacco planting soil, among which the flue-cured tobacco K326 of ground toba...

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PUM

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Abstract

The invention discloses a fine fertilizer application method for flue-cured tobaccos K326. Fine fertilizer application for the flue-cured tobaccos K326 is realized by measuring the alkali-hydrolyzale nitrogen content, the effective phosphorous content and the effective potassium content, calculating the using amount of nitrogen, and then calculating the using amount of phosphorous and the using amount of potassium according to a fertilizer application ratio to finally obtain the amount of nitrogen, phosphorous and potassium fertilizers by a base fertilizer and topdressing combination mode, so that a certain yield of high-quality tobaccos can be obtained. According to the fine fertilizer application method, the most economic fertilizer application amount can be calculated, so that loss of redundant nutrients can be reduced, and the cost can be lowered to a certain extent; on the premise that the yield and the quality of the flue-cured tobaccos K326 are not affected, a requirement on the growth of the flue-cured tobaccos K326 is met under the least using amount of nitrogen, phosphorous and potassium. The tobaccos obtained by the method provided by the invention are high in quality; chemical components in the tobaccos are coordinated; the flue-cured tobaccos are fresh in color, mesophyll tissues are dense, leaves are high in toughness, the oil content is large, and requirements of a cigarette enterprise can be met.

Description

[0001] technical field [0002] The invention relates to a fine fertilization method for flue-cured tobacco K326, belonging to the technical field of agricultural and forestry fertilizers. Background technique [0003] Flue-cured tobacco is an important economic crop in my country and the basic raw material of the cigarette industry. Flue-cured tobacco K326 is one of the main formulas of cigarettes. Its growth has its own nutritional rules and unique quality requirements. In addition, the planting range of flue-cured tobacco K326 is expanding year by year, and the soil nutrient conditions vary greatly from place to place. Precision fertilization technology is particularly important. [0004] At present, the main problem of fertilization of flue-cured tobacco K326 is the imbalance of nitrogen, phosphorus and potassium, which leads to high yield of tobacco leaves, but it is difficult to obtain high-quality tobacco leaves, and the obtained tobacco leaves are difficult to roast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G7/00
Inventor 陈检锋薛开政陈华赵文军付利波田育天尹梅王志远苏帆洪丽芳
Owner HONGTA TOBACCO GRP
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