3 results about "Soil pH" patented technology

The invention discloses a microbial improvement method for soil of an abandoned land of a mine. The method comprises the following steps of step 1, soil stabilization and plant surface planting through bacillus subtillis, wherein antibiotics are generated, hormones stimulating the plant growth are secreted, and host microorganisms are trapped and killed; step 2, nitrogen fixation, wherein gaseousnitrogen in the atmosphere is fixed through nodule bacteria, brown nitrogen-fixing bacteria and frankiaceae for providing nitrogen nutrients for plants; step 3, phosphorus and potassium adding, wherein potassium, silicon and phosphorus in soil minerals are decomposed through bacillus mucilaginosus; step 4, phosphorus and potassium dissolving. The microbial improvement method for the soil of the abandoned land of the mine has the advantages that through multi-proportion addition of a microbial agent, the introduction of harmful microbes is controlled and cut off, beneficial microbes are cultivated, the soil is improved continuously through the action of the beneficial microbes, heavy metals are controlled, chelated and conditioned through the decomposition characteristics of the cultivatedmicrobes, the PH value of the soil is neutralized, soil ripening is accelerated to improve the soil, the self-purification action is strengthened, and natural circulation is accelerated to improve thehealthy growth of hyperaccumulators.

The invention relates to a method for changing microbial communities in continuous soil of tobaccos, which comprises a planting mode of changing tobaccos as mushrooms and carrying out crop rotation on the tobaccos. The method has the beneficial effects that (1) the influence and change of the mushroom and tobacco rotation on the soil microbial community are determined; 2) four crop rotation modes and influence conditions on soil pH value, soil matrix organic matters, rapidly available phosphorus, rapidly available potassium, soil enzyme activity, bacterial species diversity, fungus species diversity and the like are determined; and 3) the research conclusion of the invention plays a high-value reference role in research and development of tobacco, crop rotation, soil microbial structures and the like in the future.