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.
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[0024] Example 1:
[0025] Taking the purple soil dry slope land in Lianzhou tobacco district of Qingyuan City, Guangdong Province as a pilot, the test soil is hard 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] Green manure planting test was completed on August 30, 2011. After the tobacco leaves were harvested, the tobacco ridges were leveled to prepare the ground and planted with green manure. The planted green manure varieties include crotalaria, viscose, Tianqing, amorpha, multiflora blue, and Leucaena Six varieties, each with a sown area of about 1 mu and a sown amount of 2 kg. Before sowing, the seeds are soaked in warm water at 55° for 2 hours, and mixed with fine sand for sowing.
[0027] The experiment was conducted on December 14th to harvest the gr...
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[0029] Example 2:
[0030] Taking the purple soil dry sloping field in Sanjiadian Village, Xingzi Town, Lianzhou Tobacco District, Qingyuan City, Guangdong Province as a pilot, the planting green manure test was carried out after the tobacco leaf was harvested on July 5, 2012. The green manure variety was crotalaria, the seeds were soaked in 55℃ warm water After 2 hours, take out and wrap it with a wet towel for inducing germination. After 24 hours, mix the seeds with the azotrophic bacteria and fine sand that grow in symbiosis with the crotalaria bean and mix them thoroughly. The faecium matches the symbiotic nitrogen-fixing rhizobia, which is a symbiotic nitrogen-fixing bacterium of the genus Crotalaria (Rhizobium sp.cfcc 1585), 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 on the tobacco ridges after harvesting, flatten and raise the tobacco ridges into a ...
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