7results about How to "Ease acidification" patented technology

The invention provides a southern red soil dry land deacidification soil conditioner and a preparation method thereof, and belongs to the technical field of soil conditioners. The preparation method comprises the following steps: embedding bacillus subtilis, bacillus licheniformis and bacillus amyloliquefaciens to prepare bacterial microspheres, adding the bacterial microspheres into gel formed by carboxymethyl chitosan and silk fibroin peptide to prepare sustained-release bacterial microsphere gel, uniformly mixing the sustained-release bacterial microsphere gel with porous silicon dioxide loaded with basalt and charcoal, and drying to prepare the acid-reducing soil conditioner for the southern red soil dry land. The acid-reducing soil conditioner for the southern red soil dry land not only improves the pH value of the soil, but also can loosen the soil and improve the air permeability of the soil to a certain extent, and promotes the absorption of crops to moisture and nutrient elements by improving the physical and chemical properties of the soil, so that the normal growth of the crops is ensured, and the acid-reducing soil conditioner has a wide application prospect.

The remediation method for the moderately and severely cadmium-polluted rice field aims at strictly controlled cadmium-polluted rice fields, and is divided into two stages of strict control and safe utilization for remediation. In the strict management and control stage, an activating agent is applied to the soil in spring, then microalgae are inoculated, cadmium-enriched plants are planted, the plants are collected after being full of the microalgae, the plants are harvested when the plants grow to the enrichment extreme value, stubbles are reserved for growth, and the steps are repeated till winter; applying an activating agent in winter, planting green manure, and harvesting in spring in the next year; the process is cyclically carried out until the cadmium content of the soil is reduced to a safe utilization level. Entering a safe utilization stage, applying an activating agent in spring, inoculating nitrogen-fixing cyanobacteria, collecting the cyanobacteria after the cyanobacteria overgrow, and repeating the steps until the rice seedlings are transplanted; applying nitrogen-fixing blue-green algae, and planting rice; applying an activating agent after rice harvesting, planting winter green manure, and harvesting in next spring; the process is cyclically carried out until the cadmium content of the soil is reduced to a preferential protection level. The method is low in cost, high in remediation efficiency and good in effect, and a new way is provided for cadmium-polluted rice field remediation.

The invention provides a method for retarding soil acidification and increasing the content of fixed inorganic carbon in soil, and relates to the technical field of soil improvement. According to the method, the wollastonite is firstly crushed, then the crushed wollastonite is uniformly spread on the surface of the soil and then mixed into a soil plough layer, and the improvement of retarding soil acidification and increasing soil fixed inorganic carbon is realized. The crushed wollastonite is spread on the surface of the soil and then mixed into a plough layer to generate stable bicarbonate which is beneficial to sealing of inorganic carbon in the soil, acidic substances in the soil can be remarkably neutralized, the soil acidification process is relieved, the air permeability and the water binding capacity of the soil are improved, and then the fertility of the soil is improved; crop root growth is promoted, nutrient absorption of plants is improved, crop yield and quality are further improved, and the method is an efficient and low-cost acidified soil improvement technology.

The invention relates to the technical field of fruit and vegetable cultivation, and provides a water chestnut fertilization influence analysis method based on principal component analysis, which comprises the following steps: setting a plurality of field trials for different nitrogen, phosphorus and potassium fertilization level treatment; measuring plant growth indexes, yield indexes, corm quality indexes and soil physicochemical property indexes of the treated water chestnuts; performing principal component analysis on the measured multiple indexes, and extracting principal components of which the characteristic values are greater than 1; calculating comprehensive scores of the processing according to the scores of the principal components and sorting the comprehensive scores; according to the comprehensive score, evaluating the comprehensive influence of different fertilization treatments on the growth, yield, quality and soil properties of the water chestnuts, and screening out an optimal fertilization combination. According to the method, the matching of medium-low nitrogen and phosphorus and medium-high potassium is clear, so that high yield and high quality are guaranteed, soil acidification can be effectively relieved, excessive consumption of nutrients is avoided, synergism of fertilizer saving, efficiency improvement, soil health and quality improvement is realized, and data support and quantitative decision basis are provided for scientific fertilization of the water chestnuts.

This invention provides a microbial fertilizer composition for buffering soil acidity and its preparation method, relating to the field of microbial fertilizer technology. The microbial fertilizer composition comprises modified straw biochar, oyster shell powder, fermented straw material, microbial composite microspheres, and organic fertilizer. The modified straw biochar is obtained by treating straw biochar with acid and then mixing it with a carboxymethyl cellulose-glucosinolate solution. The microbial composite microspheres are obtained by mixing pectin-starch microspheres with fermented Lactobacillus mucilage fermentation broth and a fully gelatinized starch solution. This invention overcomes the shortcomings of existing technologies, effectively buffering soil acidity over a long period while further improving soil fertility and promoting high crop yields.

The invention provides a biological organic fertilizer containing a compound strain as well as a preparation method and application of the biological organic fertilizer, and belongs to the technical field of biological organic fertilizers. The bacillus velezensis and the bacillus amyloliquefaciens are added, the bacillus velezensis can tolerate certain salinity and alkalinity, the soil fertility can be improved through nitrogen fixation, the utilization rate of phosphorus can be improved by dissolving inorganic phosphorus, the tolerance of plants to environmental stress is enhanced through iron-producing carriers, the growth of seedlings is promoted, and the growth and development of the plants are promoted; the bacillus amyloliquefaciens has the functions of resisting salt and alkali to a certain degree, dissolving phosphorus, dissolving potassium and the like. The bio-organic fertilizer disclosed by the invention is beneficial to remarkably increasing the contents of chlorophyll, proline and soluble sugar of the pakchoi and also reducing the content of malondialdehyde of the pakchoi, so that the oxidative damage of plants is reduced, the stress resistance and quality are improved, the contents of nitrogen, phosphorus and potassium in soil are integrally improved, and the acidification of the soil is remarkably relieved.

The invention discloses a root-fertilizer mutual feedback green fertilization method for increasing the yield of sugarcane and a fertilizer, and belongs to the technical field of sugarcane planting. Sugarcane is planted through the steps of field returning before planting, sugarcane fertilizer input optimization, mutual feedback planting, fertilization and the like, and meanwhile the problems that in the current sugarcane planting process, the fertilizer dosage is large, the proportion is not scientific, the cost is high, and the yield is low are solved through matching with a sugarcane compound fertilizer.