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Fertilization method for increasing potassium content of cured tobacco

A fertilization method and potassium content technology, applied in the field of fertilization to increase the potassium content of first-cured tobacco leaves, can solve the problems of low potassium fertilizer utilization rate, unfavorable cost saving and income increase, and unfavorable tobacco leaf production, so as to reduce fertilization labor input and improve industrial usability , the effect of reducing manual input

Active Publication Date: 2019-01-25
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology for extracting potassium from flue-cured tobacco is not conducive to the fertilizer control and efficiency improvement of tobacco leaf production due to the low utilization rate of potassium fertilizer; labor input, which is not conducive to saving costs and increasing income

Method used

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  • Fertilization method for increasing potassium content of cured tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: fertilization method of the present invention (Yunnan Qujing Xuanwei field tobacco)

[0031] (1) Basal fertilizer layered pond application: After the tobacco field is ridged and ponded, the tobacco-specific compound fertilizer (N:P 2 o 5 :K 2 O=8:12:25) 30kg / 667m 2 After fully mixing with the bottom pond soil, cover the soil with 2cm, and then add 270 kg / hm of potassium humate 2 Cover soil 1cm after mixing with it;

[0032] (2) From 30 days after transplanting the tobacco plants, drip irrigation and fertilization were adopted, and potassium nitrate was applied at 15 kg / 667m 2 And Potassium Fulvic Acid 10kg / 667m 2 fertilizer;

[0033] (3) The mixed fertilizer solution of potassium nitrate and potassium humate was drip-irrigated 30 days, 35 days and 40 days after transplanting, respectively, and the concentration of fertilizer was controlled at 0.5% each time;

[0034] (4) 45 days after planting, potassium fulvic acid fertilizer 5 kg / 667m 2 , sprayed...

Embodiment 2

[0036] Example 2: Traditional Fertilization Method (Yunnan Qujing Xuanwei Field Tobacco)

[0037] (1) Basal fertilizer layered pond application: After the tobacco field is ridged and ponded, the tobacco-specific compound fertilizer (N:P 2 o 5 :K 2 O=8:12:25) 30kg / 667m 2 Mix well with pond soil and cover with soil 1cm;

[0038] (2) Seven days after transplanting the tobacco seedlings, add potassium nitrate 10kg / 667m 2 Add water 500kg / 667m 2 watering;

[0039] (3) 35 days after transplanting the tobacco seedlings, make a small hole in the ridge surface 20cm away from the tobacco plants, and apply the tobacco-specific compound fertilizer (N:P 2 o 5 :K 2 O=8:12:25) 25kg / 667m 2 , Potassium sulfate 10 kg / 667m 2 After mixing well, apply to the hole and cover with soil.

Embodiment 3

[0040] Embodiment 3: Fertilization method of the present invention (Yunnan Wenshan Qiu Beishan Tobacco)

[0041] (1) Layered pond application of base fertilizer: After the tobacco field is ridged and ponded, 40kg / 667m of tobacco-specific compound fertilizer is applied 2 After fully mixing with the bottom pond soil, cover the soil with 2cm, and then add 270 kg / hm of potassium humate 2 Cover soil 1cm after mixing with it;

[0042] (2) From 30 days after transplanting the tobacco plants, drip irrigation and fertilization were adopted, and potassium nitrate was applied at 15 kg / 667m 2 And Potassium Fulvic Acid 10kg / 667m 2 fertilizer;

[0043] (3) The mixed fertilizer solution of potassium nitrate and potassium humate was drip-irrigated 30 days, 35 days and 40 days after transplanting, respectively, and the concentration of fertilizer was controlled at 0.5% each time;

[0044] (4) 45 days after planting, potassium fulvic acid fertilizer 5 kg / 667m 2 , sprayed on the front and b...

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Abstract

The invention discloses a fertilization method for increasing the potassium content of cured tobacco. The method comprises the following technical steps that 1, base fertilizer is layered, and 30-40 kg / 667m<2> composite fertilizer special for tobacco and 250-300 kg / hm<2> potassium humate are applied to a pond; 2, drip irrigation and dressing of 10-20 kg / 667m<2> potassium nitrate and 5-10 kg / 667m<2> potassium fulvic acid are conducted; 3, 40-50 days after planting, 5-10 kg / 667m<2> potassium fulvic acid is applied to surfaces of leaves, wherein the concentration is 0.2-0.4%; 4, the proportion ofnitrogen to potassium in all chemical fertilizer is 1:(3-3.5). According to the fertilization method, the potassium content of the cured tobacco can be effectively increased, the input of chemical potassium fertilizer is controlled, the utilization efficiency of the potassium fertilizer is improved, the labor input of fertilization is reduced, and the production benefit of the cured tobacco is improved.

Description

technical field [0001] The invention belongs to the field of flue-cured tobacco planting, and in particular relates to a fertilization method for increasing the potassium content of primary flue-cured tobacco leaves. Background technique [0002] Potassium content is one of the important indicators of tobacco leaf quality. Potassium can enhance the substance synthesis and sugar accumulation of aroma quality, aroma quantity and sugar content related indicators in tobacco leaves, and directly affect the intrinsic and extrinsic quality of tobacco leaves. Potassium application improved the quality of smoke, and the content of nicotine in tobacco leaves decreased significantly, which had an important influence on the content changes of various chemical components. High-quality tobacco leaves generally require potassium content > 1.7%. [0003] At present, the optimal application of potassium fertilizer is the main way to increase the potassium content of tobacco leaves. For...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G22/45
CPCA01C21/00A01G22/45
Inventor 马二登李军营童文杰邓小鹏徐照丽张晓海张瑞勤查文菊孙军伟高天徐兴阳胡志明
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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