| 摘要 |
Disclosed are a facility secondary NO3 - salinized soil improver and an improving method. The present invention provides preparation processes and application methods for biological soil improvers A and B. Specifically, (1) the soil improver A is solid, is prepared through microbial fermentation by using straw powder, rice bran, and other substances as raw materials, has the C/N of 30 to 50, and is used through the steps of uniformly mixing the soil improver A and facility farming soil according to the mass ratio of 1‰ to 1.4‰, then, co-culturing at the temperature of 35°C to 50°C for 5 to 7 days, and then, returning the soil improver A to the field for use; (2) the soil improver B is liquid, is an effective microbial flora obtained after salt-tolerant domestication, and is used for the growth period of crops. The present invention is based on a microbial technology and can be used for improving the soil structure, enhancing the microbial activity of soil and improving the biological fixation for inorganic nitrogen in soil, so that the content of soluble nitric nitrogen in soil can be reduced, the yield of facility cultivated crops can be remarkably increased, and the quality of the facility cultivated crops can be remarkably improved. |
