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Method for improving tobacco-planting soil in south purple soil drought sloping land

A technology for soil drought and sloping land is applied in the field of improving tobacco planting soil in southern purple soil dry sloping land, which can solve the problems of large differences in the effects of growth and soil improvement, and achieve the effects of improving quality, increasing tobacco leaf yield and improving soil.

Inactive Publication Date: 2015-04-29
LIANSHAN ZHUANG YAO AUTONOMOUS COUNTY BRANCH GUANGDONG TOBACCO QINGYUAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the planting of green manure is affected by climate, soil properties, irrigation conditions, green manure variety properties, planting technology, green pressing technology, etc., and its growth and soil improvement effects vary greatly.

Method used

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  • Method for improving tobacco-planting soil in south purple soil drought sloping land
  • Method for improving tobacco-planting soil in south purple soil drought sloping land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Taking the purple soil dry slope land in Lianzhou Tobacco Area, Qingyuan City, Guangdong Province as a pilot site, the tested soil is compacted and difficult to cultivate. The soil nutrients are: organic matter 1.2%, total nitrogen 0.094%, hydrolyzable nitrogen 74mg / kg, total phosphorus 0.0443%, effective Phosphorus 9.31mg / kg, total potassium 1.47%, available potassium 129mg / kg, pH 8.43, soil bulk density 1.5g / cm 3 .

[0026] The green manure planting experiment was carried out on August 30, 2011. After the tobacco leaves were harvested, the tobacco ridges were leveled for soil preparation and green manure was sown. The green manure varieties sown included chrysanthemum bean, edamame, Tianqing, amorpha, indigo multiflora, and leucaena There are six varieties, the sowing area of ​​each variety is about 1 mu, and the sowing rate is 2 kg. Seeds are soaked in 55° warm water for 2 hours before sowing, and mixed with fine sand for sowing.

[0027] In the experiment, the gre...

Embodiment 2

[0030] Taking the purple soil and dry slopes of Sanjiadian Village, Xingzi Town, Lianzhou Tobacco District, Qingyuan City, Guangdong Province as a pilot, a green manure test was carried out after the tobacco leaves were harvested on July 5, 2012. The green manure variety was pig dung bean, and the seeds were soaked in warm water at 55°C After 2 hours, take it out and wrap it with a wet towel to accelerate germination. After 24 hours, mix the seeds with the nitrogen-fixing rhizobia and fine sand that are symbiotic with the pea seeds and mix them well. The symbiotic nitrogen-fixing rhizobia of the genus Rhizobium (Rhizobium sp.cfcc 1585) are matched with symbiotic nitrogen-fixing rhizobia, and the number of bacteria is: 3×10 8 CFU / g, liquid, PH6.5-8.0, 200ml per kilogram of seed dressing.

[0031] Tobacco field preparation: pull out the remaining tobacco plants after harvesting on the tobacco ridge, level the tobacco ridge and raise it to a planting surface with a width of 50 cm...

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Abstract

The invention discloses a method for improving tobacco-planting soil in a south purple soil drought sloping land. The method comprises the steps of selecting Crotalaria pallida as a green manure variety, planting the Crotalaria pallida in the tobacco-planting soil in the south purple soil drought sloping land or the tobacco-planting soil in the south purple soil drought sloping land after the harvesting of tobacco, and carrying out green manuring treatment after the harvesting of the Crotalaria pallida. According to the method disclosed by the invention, by planting the Crotalaria pallida for 4-5 months, more than 3000 kilograms per mu of fresh-grass yield green manure can be harvested, and the soil organic matters can be increased by 0.05%-0.1% through green manuring; meanwhile, the total amount of three class groups of microorganisms, namely fungus, bacteria and actinomycetes in the soil are substantially increased, the granular structure and the porosity of the soil are increased after a green manure is ploughed down, and the volume weight of the soil is reduced by 0.2g / cm<3>, namely, the viscosity hardening situation of the soil is improved; the yield and the quality of tobacco are obviously increased, and the purposes of improving the soil, increasing the yield and the quality of the tobacco and increasing the production benefit are achieved.

Description

Technical field: [0001] The invention relates to a method for improving soil for tobacco planting, in particular to a method for improving soil for tobacco planting in southern purple soil dry slopes. Background technique: [0002] In southern my country, most of the tobacco planting areas are distributed in the purple land belt, such as Shaoguan, Qingyuan, Meizhou in Guangdong, Ganzhou, Fuzhou, Ji'an in Jiangxi, Longyan, Sanming in Fujian and other tobacco areas. [0003] Purple soil is a kind of lithological soil developed from purple sand shale. Due to the influence of the parent rock, the soil developed by it has more clay particles, and the mineralization is not complete, resulting in heavy compaction of the soil. It is easy to form a large block structure, the soil has poor air permeability, and it is difficult to cultivate. The heavy soil properties also make the fertilizer nutrients of the soil easy to be fixed by the soil, and the fertilizer supply is slow. On the ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G1/00
Inventor 凌寿军罗福命郑煜基陈能场张金霖唐瑞文黄日伟陈俊
Owner LIANSHAN ZHUANG YAO AUTONOMOUS COUNTY BRANCH GUANGDONG TOBACCO QINGYUAN
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