17 results about "Soil acidification" patented technology

The invention belongs to the technical field of rice cultivation and soil improvement, and particularly relates to a fertilization method for acid rice field soil improvement and application thereof. According to the method, an organic fertilizer is used for replacing 25% of conventional formula fertilizer (formula fertilizer containing nitrogen, phosphorus and potassium), and medium trace elements of magnesium, boron and zinc are applied in a combined manner; or medium trace elements such as magnesium, boron and zinc are additionally applied on the basis of application of a conventional formula fertilizer, and quick lime is added, so that the problem of aggravated soil acidification caused by application of a single chemical fertilizer is relieved, the rice yield is increased, meanwhile, the content of exchangeable acid in soil is reduced, and the total amount of exchangeable salt-based ions in the soil and the effective state content of elements are increased, thereby increasing the pH of the soil and improving the yield of the rice. The acid resistance of the soil is enhanced, and the acid soil is effectively improved.

This invention relates to the fields of microbiology and biotechnology, and discloses Bacillus coagulans PPX-13 and its applications. Strain PPX-13 is a thermotolerant, multifunctional phosphate-solubilizing biocontrol bacterium that can reduce rhizosphere soil acidification in tea trees, improve fertility, enhance the microbial ecological environment, improve the functional microbial community and structure, inhibit mold communities and structure, and increase the yield of spring tea. It has been identified as Bacillus coagulans. This bacterium exhibits mesophilic and thermotolerant phosphate-solubilizing activity; phytase activity; multiple enzyme activities; and mesophilic antagonistic activity against isolates of anthracnose fungal pathogens. This strain holds promise for development into a novel agricultural microbial agent, which is of great significance for mitigating soil acidification, reducing fertilizer use, activating soil nutrients, improving soil quality, and increasing plant (especially tea) yield and quality.

The present application relates to the technical field of agricultural fertilizer, in particular to an acid soil conditioner and a preparation method thereof. In order to solve the problem of soil acidification, the present application prepares an acid soil conditioner for improving acid soil. In order to avoid the problem that traditional acid soil conditioners such as quicklime and slaked lime are not conducive to controlling pH value and are lost too quickly, the acid soil conditioner prepared by the present application is modified by adopting a multiple mode of layered double hydroxide intercalation + acid-responsive gel plugging + microbial loading, thereby giving it the function of pH value response release, effectively avoiding the problem of soil alkalization caused by excessive addition of soil conditioner.

This invention discloses a method for improving soil in potato cultivation, belonging to the field of agricultural soil remediation technology. Addressing the problems of soil acidification, compaction, reduced beneficial microorganisms, and severe soil-borne diseases caused by continuous potato cropping, this invention provides a synergistic improvement method integrating soil pretreatment, coupled application of microbial agents and organic fertilizers as basal fertilizers, dynamic and precise regulation throughout the growth cycle, coordinated water and fertilizer management, and post-harvest remediation. This method involves basal application of a specific ratio of compound microbial agents coupled with organic fertilizers. Based on the physiological needs and disease occurrence patterns of potatoes at different growth stages, and combined with the dynamic and precise regulation of the timing and dosage of microbial agent application through a drip irrigation system, water and fertilizer supply are simultaneously optimized, achieving synergistic effects of biological antagonism, soil ecological restoration, and crop nutrient regulation. This invention effectively improves the soil micro-ecological environment, reduces the incidence of soil-borne diseases, reduces reliance on chemical fertilizers and pesticides, and improves potato yield and quality.

The utility model relates to agricultural field especially soil acidification conditioning liquid fertilizer's blending device. The utility model provides soil acidification conditioning liquid fertilizer's blending device that can conveniently discharge redundant raw materials, need not manual control the amount of raw materials, convenient to use. Soil acidification conditioning liquid fertilizer's blending device, including base and stirring bin etc. The left side of base is connected with stirring bin. The utility model discloses through starting servo motor, drives the baffle rotation to open, makes the raw materials of weighing bin inner part through the discharge pipe and falls to the discharge bin, then the baffle rotates to close, starts electric push rod again, drives the discharge pipe to bend up and changes, makes the raw materials in the discharge pipe fall back to the weighing bin, reaches can conveniently discharge redundant raw materials, need not manual control the amount of raw materials, convenient to use effect.

This invention relates to the field of organic fertilizer technology, and more particularly to an organic fertilizer that promotes plant growth and soil improvement, and its preparation method. Addressing the problems of long fermentation cycles, unstable nutrient release, and soil acidification caused by traditional organic fertilizers, this invention utilizes a Schisandra chinensis stem polyphenol-sepiolite complex as a core additive. The process includes the following steps: extracting and concentrating Schisandra chinensis stem polyphenols using an ethanol solution; activating sepiolite with HCl solution to enhance its adsorption capacity; compounding the polyphenols with the activated sepiolite to form a stable complex; mixing the complex with basic organic materials such as well-rotted cow manure, soybean meal, humic acid, and a compound microbial agent, adjusting the moisture content, and then performing aerobic fermentation; finally, granulating and drying to obtain the organic fertilizer product. This invention can significantly improve plant growth indicators and soil fertility, realize the utilization of waste resources, and is low-cost and environmentally friendly.

This invention belongs to the field of resource scheduling and management technology, and relates to a method and system for intelligent scheduling and optimization of soil acidification remediation resources based on big data. The method includes: receiving remediation business requests to generate a demand matrix; constructing a resource topology map based on real-time supply data; extracting cancellation constraint data to generate a cancellation rate index reflecting feedback delay; determining the start time of the remediation task based on this index and applying timestamp compensation to determine scheduling priority; generating a scheduling instruction sequence, and transforming the demand matrix into a multi-band smooth logistics plan. This invention achieves precise matching between resource delivery frequency and environmental absorption capacity by coupling environmental absorption characteristics with logistics timing, effectively alleviating trunk logistics pressure and improving the efficiency of resource allocation for cross-regional ecological remediation tasks.

This invention belongs to the field of agricultural technology, specifically relating to a novel nitrogen fertilizer based on allantoin and its application in wheat cultivation. This invention discovers that using allantoin as the sole nitrogen fertilizer has effects on plant height, tillering, and total above-ground dry weight comparable to applying the same or higher amounts of urea, indicating that allantoin can replace urea as a nitrogen fertilizer, providing the nitrogen nutrition required for wheat growth in the long term. Furthermore, this invention finds that allantoin can also be applied in combination with urea to increase wheat yield while reducing urea usage. Using allantoin as a nitrogen fertilizer for wheat effectively alleviates various problems caused by urea, such as increased soil acidification, compaction, and reduced soil fertility.

This invention relates to the field of soil remediation fertilizer technology, and particularly to a slow-release fertilizer for increasing yield in cadmium-contaminated farmland that regulates soil acidification, and its preparation method. The slow-release fertilizer for increasing yield in cadmium-contaminated farmland comprises a core layer and a coating layer covering the core layer. The core layer comprises the following raw materials by weight percentage: 30%–50% rice straw biochar, 35%–55% urea, 3%–8% binder, and 2%–8% cadmium passivating agent. The coating layer comprises the following raw materials by weight percentage: 5%–15% polyvinyl alcohol, 60%–80% rice straw biochar, 2%–5% polyethylene glycol, and 3%–10% bentonite. The slow-release fertilizer prepared by this invention can simultaneously address multiple problems such as soil acidification, Cd pollution, nutrient waste, and crop yield reduction. Through a "core-shell" structure, it achieves slow nitrogen release, acid-base gradient regulation, and cadmium stabilization simultaneously, providing technical support for the remediation and safe production of cadmium-contaminated acidic farmland.

The application discloses a method for controlling and inhibiting sugarcane acidification by using nitrogen-fixing bacteria, and relates to the technical field of controlling and inhibiting sugarcane acidification, and solves the problems that a combined nitrogen-fixing system formed by nitrogen-fixing bacteria and sugarcane is greatly affected by rhizosphere biological adversity, nitrogen-fixing effect is unstable, and nitrogen-fixing efficiency is low. The application reduces the use of nitrogen fertilizer in the whole growth cycle of the sugarcane, and applies a combined nitrogen-fixing bacterial agent and a promoting agent in the sugarcane seedling stage and the elongation stage, respectively. The combined nitrogen-fixing bacterial agent is Raoultella L03, Bacillus azoreus and Rhizosphaera sulcata, and the promoting agent is mannitol, glycerol, succinic acid, sodium molybdate, dipotassium hydrogen phosphate, magnesium sulfate, ferrous sulfate and glutathione. The application can make the nitrogen-fixing bacteria quickly form a combined nitrogen-fixing system with the sugarcane, so that the purposes of efficient nitrogen fixation, less nitrogen fertilizer application and soil acidification reduction are achieved.

This invention discloses a precise fertilizer control method for in-situ monitoring of ammonia volatilization in dryland rice fields. It relates to the interdisciplinary field of dryland rice cultivation and farmland ecological environment protection. Combining the subtropical monsoon climate characteristics of major dryland rice producing areas with the coupled water and nitrogen requirements of dryland rice at different growth stages, it constructs an in-situ monitoring system for ammonia volatilization in dryland rice fields based on the sponge method for measuring ammonia nitrogen, with a two-factor synergy of "water source model - nitrogen application system". This invention focuses on the core characteristics of acidic red / yellow soil, low organic matter content, and subtropical monsoon climate in major dryland rice producing areas, characterized by waterlogging during the rainy season and drought during the dry season. By optimizing the synergistic parameters of "water source model - nitrogen application level", it reduces ammonia volatilization by more than 20%. Simultaneously, through the rational combination of organic fertilizer and amino acid fertilizer, it effectively increases soil pH by 0.2-0.3 units, alleviating the acidification trend of acidic soils, improving soil physicochemical properties, and breaking the vicious cycle of "high ammonia volatilization - inefficient nitrogen application - soil acidification".

This invention relates to the field of energy conservation and environmental protection technology, and in particular to a nutrient solution for blueberry substrate cultivation, a device and method for efficient recycling of nutrient solution wastewater, wherein the nutrient solution includes nutrient solution for the planting period, the growth period, the flowering period, the flowering and fruiting period, and the fruit-end stage; the pH of the nutrient solution is 5.0-6.0, and the nutrient components of the nutrient solution all include Cu 3-6 μmol / L, Mn 8-12 μmol / L, Zn 10-15 μmol / L, B 20-40 μmol / L, Mo 2-5 μmol / L, and Fe 25-50 μmol / L; the wastewater recycling method includes: filtering and disinfecting the nutrient solution wastewater, detecting the main components, then reconstituted the nutrient solution wastewater into a target nutrient solution according to the blueberry growth stage, and then returning it to the water and fertilizer irrigation system for blueberry substrate cultivation. The nutrient solution drainage and recycling method provided by this invention can recycle nutrients that have not been absorbed by blueberries, which can not only avoid the problem of soil acidification, but also achieve the purpose of saving water and fertilizer and reducing production costs.

The application discloses a kind of honey pomelo garden soil acidification treatment digital management and evaluation system, specifically related to orchard soil treatment digital management technical field, including the soil pH value of each sampling position, exchangeable acid amount, soil layer identification, sampling time, change record, irrigation and drainage record and rainfall record, output original treatment data;Receive original treatment data, execute position binding, layer position binding, time sorting and history storage, output continuous treatment data;Receive continuous treatment data, the detection record of the same tree tray position, the same soil layer, the same treatment round is combined with change record, generates and actually treats the digital twin site of one-to-one mapping of position, output digital twin site set;By mapping treatment position as digital twin site, and to the favorable change detected successively executes interlayer continuity, change range consistency, boundary external interference exclusion and subsequent round persistence review, to distinguish real improvement and phase appearance improvement.

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 application provides a method for improving the soil health function of a facility vegetable field, which improves the soil by ditching and laying a high-carbon isolation functional layer in the planting area of the facility vegetable field and then covering and flattening the soil, wherein the high-carbon isolation functional layer comprises, from bottom to top, a high-carbon stable layer, a storage and capacity-increasing layer and an adsorption and release layer. The high-carbon stable layer is a mixture of compacted long-acting carbon materials and skeleton support materials, the storage and capacity-increasing layer is a mixture of agricultural waste to which a microbial agent is applied and water-retaining materials, and the adsorption and release layer is a mixture of porous medium-acting carbon materials and natural mineral controlled-release fertilizers. The above method can solve the problems of soil acidification, hardening, salinization, accumulation of nitrate and organic pollutants and the like in the existing facility vegetable field, improve the soil micro-ecological environment, improve the soil quality, and ultimately realize the quality improvement, yield increase and healthy and sustainable development of the facility vegetable field, and has important significance for the development of the facility agriculture industry.

This invention discloses a compound microbial fertilizer for improving soil acidification and its preparation method, relating to the field of soil improvement technology. It comprises the following components: microbial inoculant, modified nano-selenium complex, quicklime, biochar, humic acid, decomposed organic matter, and trehalose. The microbial inoculant contains *Bacillus belye*, *Lactobacillus plantarum*, and *Streptomyces griseus*. The modified nano-selenium complex is obtained by loading nano-selenium particles onto chitosan modified with ferulic acid. The fertilizer prepared by this invention achieves synergistic effects of soil improvement and increased rice yield through a triple mechanism of chemical neutralization, biological acid stabilization, and nano-inactivation, and also possesses selenium-enriching properties, demonstrating significant market potential.