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Tobacco field soil improvement method capable of effectively improving quality of tobacco leaves

A soil improvement and tobacco field technology, applied in the field of tobacco cultivation, can solve the problems of restricting the normal development of flue-cured tobacco, changing soil permeability, failing to improve soil, etc., achieving scientific and reasonable fertilization amount, improving water storage capacity, and low cost Effect

Active Publication Date: 2018-03-06
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the selection of tobacco fields and the improvement of tobacco field soil have become the key factors to improve the quality of tobacco leaves. The existing production technology has not been able to solve the problem of planting high-quality tobacco leaves in sticky soil. Fields with loose soil texture, the soil bulk density is 1.0-1.2g / cm 3 It is beneficial to the growth of flue-cured tobacco and the formation of tobacco leaf quality, but the bulk density of tobacco planting soil in Yunnan tobacco leaf production is relatively high, with a bulk density of 1.3g / cm 3 The above-mentioned soil is more, which limits the normal development of flue-cured tobacco; secondly, there is a lack of effective methods to improve soil viscosity. In current production, foreign soil is mixed with sand, zeolite and other modifiers are used to change the permeability of the soil, but these technologies Due to the limitation of raw materials, it is difficult to popularize in a large area; the application of farmyard manure is a main measure to improve soil viscosity, but there are many problems in practical application, such as how to prepare farmyard manure, how much to apply, how to apply chemical fertilizers, etc. Farmyard manure Improper application will lead to malnutrition in tobacco plants, excessive application, more mineralization in the later stage, sufficient nitrogen supply, resulting in green and late maturity of tobacco leaves, too little application, and no effect of improving soil

Method used

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  • Tobacco field soil improvement method capable of effectively improving quality of tobacco leaves
  • Tobacco field soil improvement method capable of effectively improving quality of tobacco leaves
  • Tobacco field soil improvement method capable of effectively improving quality of tobacco leaves

Examples

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preparation example Construction

[0028] The preparation method of the farmyard manure described in step (5) is as follows: fresh pig manure and corn stalks are mixed according to the ratio of fresh weight of 5-7:1, water is added to make the water content of compost organic materials 55-65%, and organic fertilizer is added Starter, the amount added is 0.5~1.5% of the total weight, and then the prepared materials are turned over 3-4 times, fully mixed, piled into conical piles, and the outer layer is covered with plastic film for heat preservation and water retention. After the temperature in the heap reaches 60°C, turn over the heap for the first time, and then turn over the heap every 7-10 days. The fermentation time of the heap is more than 30 days, and the heap is dried and transported to the field for later use.

[0029] The corn stalks are corn stalks chopped to a length of 2-4 cm.

[0030] In the application of the base fertilizer, the compound fertilizer is applied in holes, and the amount of pure nitr...

Embodiment 1

[0032] A tobacco field soil improvement method for effectively improving the quality of tobacco leaves, comprising the following steps:

[0033] 1) Selected area: select an area with an altitude of 1800~1900m, an average temperature of 19.0°C in late September, and a sunshine duration of 45 hours in late September;

[0034] 2) Tobacco field selection: Selection step (1) The soil pH in the selected area is 6.0, chloride ion 10mg / Kg, available potassium>100mg / Kg, the soil is sticky, the bulk density is 1.4g / cm 3 plots of land as tobacco fields;

[0035] 3) Ridging and ponding: deep plowing 30cm, ridging, ridge surface width 20cm, ridge height 30cm, on the ridge surface every 50cm to form ponds, pond depth 15cm, pond diameter 35cm.

[0036] 4) Base fertilizer application: hole application of compound fertilizer, the amount of pure nitrogen applied is 60% of the total amount of nitrogen applied, N:P 2 o 5 :K 2 O=1: (1~1.5): (2~3), apply calcium magnesium phosphate fertilizer...

Embodiment 2

[0041] A tobacco field soil improvement method for effectively improving the quality of tobacco leaves, comprising the following steps:

[0042] 1) Selected area: select an area with an altitude of 2000m, an average temperature of 20°C in late September, and a sunshine duration of 50 hours in late September;

[0043] 2) Tobacco field selection: select fields with medium fertility and sticky soil texture, the soil pH5.0, chloride ion 10mg / Kg , available potassium>100mg / Kg; the soil bulk density is 1.6g / cm 3 ;

[0044]3) Ridging and ponding: deep plowing of 32cm, ridging, ridge surface width of 22cm, ridge height of 32cm, forming ponds every 55cm on the ridge surface, pond depth of 16cm, pond diameter of 37cm;

[0045] 4) Base fertilizer application: apply compound fertilizer in holes, apply pure nitrogen amount to 65% of the total nitrogen amount, apply 26 kg of calcium magnesium phosphate fertilizer per mu, mix with surrounding soil, and spread on the bottom of the pond;

...

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Abstract

The invention discloses a tobacco field soil improvement method for effectively improving the quality of tobacco leaves. The tobacco field soil improvement method comprises the following steps: 1) selection of areas; 2) selection of tobacco fields; 3) ridges and ponds; 4) base fertilizer application ; 5) Farmyard manure mixing pond; 6) Top dressing application. The present invention treats the soil of the tobacco field through farmyard manure mixing ponds, and the chemical components of the obtained tobacco leaves are more coordinated, the tobacco leaf smoking evaluation score is as high as 82.5 or more, the aroma is more prominent, the concentration is higher, and the strength is stronger, and it can be used as a method for improving sticky soil. An effective way, while the total fertilization rate of the improved soil of the present invention is 90% of the conventional fertilization rate, which effectively reduces the fertilization rate and reduces the cost.

Description

technical field [0001] The invention belongs to the technical field of tobacco cultivation, and in particular relates to a tobacco field soil improvement method for effectively improving the quality of tobacco leaves. Background technique [0002] Compared with foreign high-quality tobacco areas, tobacco planting soils in Yunnan generally have problems such as sticky texture, high bulk density, and poor permeability, which restrict the development of flue-cured tobacco roots and field nutrition tolerance. Therefore, the selection of tobacco fields and the improvement of tobacco field soil have become the key factors to improve the quality of tobacco leaves. The existing production technology has not been able to solve the problem of planting high-quality tobacco leaves in sticky soil. Fields with loose soil texture, the soil bulk density is 1.0-1.2g / cm 3 It is beneficial to the growth of flue-cured tobacco and the formation of tobacco leaf quality, but the bulk density of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01C21/00A01G22/45
Inventor 李军营祝明亮童文杰马二登王津军封幸兵徐兴阳耿少武晋艳
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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