6results about How to "Reduce salt" patented technology

This invention provides a composite biosynergist, its preparation method, and its application. The composite biosynergist is composed of polyglutamic acid, humic acid, fucoidan oligosaccharide, and plant polyphenols. The synergistic effect of the active substances polyglutamic acid γ-PGA, humic acid HA, fucoidan oligosaccharide AOS, and plant polyphenol PP in the composite biosynergist is essentially manifested in microscopic-scale functional complementarity and mechanism closed-loop. It achieves four functional pathways: blocking salt toxicity through chelate channels, ensuring nutrient supply through complexation channels, enhancing nutrient absorption through root-promoting channels, and resisting stress damage through stress-resistant channels. Ultimately, it achieves the macroscopic effect of "improved soil physicochemical properties—enhanced root function—increased crop stress resistance and yield." Its core advantage lies in overcoming the functional limitations of single components and solving the industry pain points of "difficult-to-eliminate salt damage, easy nutrient loss, and unstable improvement effect" in saline-alkali land improvement through molecular-level synergistic effects.

The application belongs to the technical field of soil improvement, and particularly relates to a method for autumn and winter pressing and early spring plowing to increase soil moisture and control salt in saline-alkali land. In the winter soil freezing process of the water-deficient saline-alkali area, a large amount of water migrates from deep soil or underground water to the surface layer. After the soil freezing layer melts in the spring, the water content of the surface soil is significantly increased. The soil water and salt dynamic law in the soil freezing and thawing process is used to press the land by using a presser before the soil freezes in the winter, to improve the tightness of the soil and increase the proportion of soil pores of the rising water. The soil freezing process in the winter is used to promote the migration of deep soil water to the surface layer. In the early spring of the next year, a large plowing machine is used to plow the land deeply in the soil freezing layer melting and returning to the slurry period, to keep the high water content and low salt content of the plough layer. Combined with the micro-sowing of spring crops such as sorghum, oil sunflower and oat, the normal emergence and growth of the spring crops are ensured.

The utility model relates to saline and alkaline land drainage technical field discloses a kind of saline and alkaline land drainage salt discharge buried pipe laying structure, including water-collecting well, the shallow main buried pipe is fixedly connected in the water-collecting well top left side, the deep main buried pipe is fixedly connected in the water-collecting well bottom left side, the shallow main buried pipe front side is fixedly connected with shallow branch buried pipe one, the shallow main buried pipe rear side is fixedly connected with shallow branch buried pipe two, the deep main buried pipe rear side is fixedly connected with deep branch buried pipe two, the deep main buried pipe front side is fixedly connected with deep branch buried pipe one, cleaning mechanism is provided in the deep branch buried pipe one inside.The utility model, after external soil water is filtered by filter layer and is filtered, flows through branch buried pipe and enters main buried pipe, realizes to make tillage layer salt drop, guarantees the purpose of crop root system environment, accumulated water is finally collected to water-collecting well, water in water-collecting well is discharged to external water body by drainage pump, and the balanced drainage of device is realized.

This invention discloses a high-humicity microbial fertilizer and its preparation method, belonging to the field of microbial fertilizer technology. The method involves adding a mixed carrier, a protective agent, and fermentation broth to a stirred tank in a specific ratio, followed by shaking and adsorption, filtration, and drying with forced air until the moisture content of the absorbent resin powder reaches 30-35%. The powder is then continuously granulated using a granulator and sieved to obtain microbial agent granules with a particle size of 2-5 mm. The microbial agent granules and sodium humate are mixed at a mass ratio of 1-2:10 to obtain the high-humicity microbial fertilizer. The aggregated short fibers, under the adhesive and physical entanglement effects of the protective agent, increase the internal space of the microbial agent granules while improving structural stability, providing a stable growth and reproduction environment for microorganisms, and improving the long-term storage of the fertilizer and the survival rate of microorganisms after application. The enlarged microbial agent granules provide support, increasing soil looseness and providing a good respiratory environment for crop roots.

The application discloses a growth promoter for improving the seedling emergence rate of cotton in saline-alkali soil, and the salt resistance of cotton seed germination is improved by using rapeseed euricin regulator and GABA permeation regulator; the stable agent formed by strong acid materials such as urea phosphate can quickly reduce the pH value and saline-alkali of the soil tillage layer; meanwhile, the urea phosphate, amino acid, fulvic acid and auxiliary materials provide certain nutrient substances for seedling crops; the cooperation among raw materials fundamentally improves the salt tolerance of cotton seedling, not only improves the seedling emergence rate of cotton, but also can quickly reduce the pH value of saline-alkali soil in Xinjiang after dissolving water, improves the chemical composition of soil, reduces the salt content and alkalinity of soil, creates a good environment for crop growth, and after application, the soil salt content is below 20 g / kg, the pH value is below 7.5, the seedling emergence rate of cotton is above 70%, which is more than 30% higher than that of the control, and the yield of cotton in saline-alkali soil in Xinjiang is significantly increased, thereby providing technical support for rural revitalization.

This invention discloses a vacuum distillation apparatus and method for isophthaloyl / terephthaloyl chloride, belonging to the field of chemical separation technology. The distillation apparatus and process provided by this invention prevent terephthaloyl chloride from entering the vacuum system, thus protecting the vacuum system: due to the stepped cooling of the first-stage and second-stage cup coolers, the terephthaloyl chloride is fully condensed and recovered before entering the vacuum system. The Roots pump and ejector pump in the vacuum system only handle non-condensable gases, avoiding rotor jamming caused by material condensation and accumulation.