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Tobacco field soil improving method

A soil improvement and tobacco field technology, which is applied in land preparation methods, soil conditioning materials, chemical instruments and methods, etc. It can improve soil water retention, improve fertilization efficiency, and increase the output value of tobacco leaves.

Inactive Publication Date: 2016-08-17
陕西省烟草公司汉中市公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, under the high-intensity continuous cropping system in my country's tobacco areas, the land multiple cropping index has remained high, the amount of chemical fertilizers has continued to increase, and there is a lack of effective measures to continuously fertilize the soil, resulting in imbalances in soil carbon and nitrogen ratios, deterioration of soil physical properties, and soil nutrition. Simplification and inactivation of soil microbial flora ultimately severely restrict the normal growth and quality of tobacco leaves
At the same time, the utilization rate of fertilizers in tobacco fields is gradually declining, the benefits of fertilization are significantly reduced, and the obstacles to continuous cropping in soil are prominent, which seriously affects the green and sustainable development of tobacco leaf production in my country

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] On September 22 of that year, 4.5kg / 666.7m of ryegrass was drilled along the direction of the ridge of the tobacco field 2 , the sowing depth is 4cm, and 40 days before the tobacco seedlings are transplanted in the following year, the land for planting ryegrass is treated with rotary tillage, the depth of rotary tillage is 13cm, and then the soil is buried on the ryegrass, and the embedding of ryegrass The depth is 18cm, and the embedding amount of fresh ryegrass is 1400kg / 666.7m 2 ; After the ryegrass was overturned for 18 days, rid the soil and dig a hole on the ridge, mix the biochar, base fertilizer and the soil in the hole evenly, then move the tobacco seedlings into the hole, and seal the soil after watering. The dosage is 80kg / 666.7m 2 .

Embodiment 2

[0028] On September 22 of that year, 5kg / 666.7m of ryegrass was drilled along the direction of the ridge of the tobacco field 2 (It can be adjusted according to the soil fertility. If the soil fertility is low, the sowing rate will be increased, and if the soil fertility is high, the sowing rate will be reduced). The sowing depth is 4cm. The next year, 40 days before the tobacco seedlings are transplanted, perform rotary tillage on the plot planted with ryegrass Treatment, the depth of rotary tillage is 13cm, and then the soil is buried on the ryegrass, the depth of the ryegrass is 18cm, and the fresh grass embedding amount of the ryegrass is 1500kg / 666.7m 2 ; After 18 days of ryegrass overturning, mix the biochar with the base fertilizer and spread it along the center line of the ridge, then make a ridge and dig a hole on the ridge, move the tobacco seedlings into the hole and then water and seal the soil. Application rate is 150kg / 666.7m 2 .

Embodiment 3

[0030] On September 29 of that year, 8-10kg / 666.7m of purple sweet potato was drilled along the direction of the ridge of the tobacco field 2 (The specific dosage is adjusted according to the soil fertility. If the soil fertility is low, the sowing rate will be increased, and if the soil fertility is high, the sowing rate will be reduced). Rotary tillage treatment, the rotary tillage depth is 13cm, and then the soil is buried on the purple sweet potato, the buried depth of the purple sweet potato is 18cm, and the fresh grass embedding amount of the purple sweet potato is 1300kg / 666.7m 2 After 18 days of overturning and pressing the purple sweet potato, ridge the soil and dig a hole on the ridge, mix the biochar, base fertilizer and the soil in the hole evenly, then move the tobacco seedlings into the hole, and seal the soil after watering. Application rate is 60kg / 666.7m 2 .

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Abstract

The invention relates to a tobacco field soil improving method. The method comprises the following steps: green manure is applied to soil, the green manure is ploughed down 30-45d before next year tobacco seedling transplantation, and biomass charcoal is applied to soil 15-20d after the green manure is ploughed down. The green manure and the biomass charcoal are combined to restore tobacco field soil, so the content of organic matters in soil is improved, the water retention property of the soil is improved, the growth of roots in the earlier growing stage of tobacco plants is promoted, and early and fast growth of the tobacco plants is promoted; and the method also has the advantages of increase of the content of tobacco leaves, increase of the proportion of high-and-middle tobacco leaves, increase of the output value of the tobacco leaves, improvement of the quality of the tobacco leaves, coordination of chemical components, increase of the fragrance and the oil content of the tobacco leaves, improvement of the smoking quality of the tobacco leaves, reduction of the application amount of chemical fertilizers, and improvement of the utilization rate of the fertilizers.

Description

technical field [0001] The invention belongs to the technical field of tobacco planting, and in particular relates to a soil improvement method for tobacco fields. Background technique [0002] Tobacco is an economic crop that takes into account both yield and quality. Not only does it require a suitable yield, but it also requires better quality and coordinated chemical components of tobacco leaves in order to achieve the quality of tobacco leaves such as sufficient aroma, pure quality, irritation and low miscellaneous odor. Require. Soil is the carrier of tobacco plant growth. Soil characteristics directly affect the ability of soil moisture, nutrients, air and heat to coordinate supply, and ultimately affect the formation of tobacco plant growth and yield and quality. The soil conditions for the production of high-quality tobacco leaves require that the plow layer be loose, well-ventilated, and have a suitable water content. It must also be rich in nutrients and high in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00A01B79/02C09K17/40C09K109/00C09K101/00C05G3/80
CPCA01B79/02C05C5/02C05G3/00C05G3/80C09K17/40C09K2101/00C09K2109/00C05D1/00C05D5/00C05D9/00C05F11/02C05G1/00
Inventor 牛玉德刘红恩梅运鹏杨宏星叶协锋李先锋杜鸿波韩治建申剑
Owner 陕西省烟草公司汉中市公司
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