20 results about "Phosphorus fertilizer" patented technology

The application provides a method for preventing early decline of densely-planted double-layered circular table-shaped macadamia nut trees, and belongs to the technical field of fruit tree cultivation. The method for preventing early decline comprises hierarchical nutrient supply and flower and fruit protection management. The hierarchical nutrient supply comprises: deep application of calcium, magnesium and phosphorus fertilizer in the lower layer of more than 60cm soil, and covering with a root control device; application of organic fertilizer and biological bacteria agent in the middle layer of 30-60cm soil; and application of a large amount of elements, humic acid and seaweed extract water-soluble fertilizer in the upper layer of 0-30cm soil. The flower and fruit protection management comprises: spraying ABA and paclobutrazol during flower bud differentiation period; spraying brassinolide and fluid boron during full flowering period; spraying forchlorfenuron and amino acid during young fruit period; and spraying NAA and potassium dihydrogen phosphate during fruit swelling period. The application supplies nutrients hierarchically and protects flowers and fruits for densely-planted double-layered circular table-shaped macadamia nut trees, prevents early decline of the densely-planted macadamia nut trees, promotes the development of lower branches, balances tree vigor and maintains high yield.

This invention discloses a differentiated fertilization method for Scutellaria baicalensis, belonging to the field of traditional Chinese medicinal herb cultivation technology. This method selects a corresponding ratio from multiple predetermined nitrogen, phosphorus, and potassium fertilizer application ratios based on the accumulation requirements of the target medicinal components, thereby achieving targeted regulation of different medicinal components. The multiple predetermined nitrogen-phosphorus-potassium ratios include a first ratio that increases baicalin, a second ratio that increases baicalein, a third ratio that increases wogonin, and a fourth ratio that increases wogonein. This invention allows for flexible selection of ratios according to production targets, achieving precise regulation of different medicinal components while simultaneously increasing Scutellaria baicalensis yield, and has good prospects for widespread application.

This utility model discloses a ceramic flowerpot with anti-water accumulation function, relating to the field of ceramic flowerpot technology. It includes a storage base, a nutrient box threaded onto the top of the storage base, a flowerpot body fixedly mounted on the top of the nutrient box, a filter device fixedly mounted on the inner wall of the flowerpot body, and openings fixedly mounted on the top and bottom of the nutrient box. This utility model provides fertilization using nutrient layers within the nutrient box. To prevent the current ceramic flowerpots from having limited functionality and lacking automatic fertilization, the water, after filtration, passes through nitrogen, potassium, and phosphorus fertilizer layers, containing fertilizer components. When the filter device is replenished, the water automatically fertilizes the plants, eliminating the need for manual fertilization during water replenishment. This is very convenient and beneficial for plant growth. Furthermore, to prevent water accumulation in the flowerpot and avoid affecting normal plant growth, the storage base stores the filtered water, saving water resources and preventing waterlogging, making it very practical.

The application discloses a method for improving the yield of soybeans in saline-alkali soil by combined inoculation of rhizobium and arbuscular mycorrhizal fungi, which successfully constructs a "soybean-rhizobium-arbuscular mycorrhizal fungi" three-symbiotic system by combining Bradyrhizobium sp. with Endogone intraradices and Diversispora mosesii. The method can significantly promote the growth of soybeans, nodule fixation and nitrogen fixation, and mycorrhizal colonization. Under the condition that the application of nitrogen fertilizer is reduced by 26.00% and the application of phosphorus fertilizer is reduced by 23.08%, the yield is still increased by 29.96% and is 8.49% higher than that of the conventional fertilization group. Meanwhile, the method can enhance the oxidation resistance and nutrient absorption capacity of plants, improve the rhizosphere microenvironment, and effectively relieve the saline-alkali stress. The application provides a feasible technical path for the green and efficient production of soybeans in saline-alkali soil, helps to reduce the dependence on chemical fertilizers, and promotes the sustainable development of agriculture.

The present application belongs to the technical field of grassland ecological restoration, and particularly relates to a kind of Leymus chinensis grassland use promotes the application of a kind of fertilizer and its in fast recovery Leymus chinensis in application.The Leymus chinensis grassland use promotes the fertilizer of sprout and includes nitrogen fertilizer, phosphorus fertilizer, silicon fertilizer and rice bran wax paste;in spring snow melting period, the sprout promoting fertilizer is applied, can promote Leymus chinensis tillering, meet the demand of Leymus chinensis to nutrient, promote Leymus chinensis rhizome clonal growth, fast recovery Leymus chinensis in degraded grassland dominant position;And after fertilization, immediately add covering, prevent soil water loss, significantly improve soil moisture, finally reach the effect of improving the density, biomass, crude protein content and its proportion in community of Leymus chinensis in degraded grassland, and two years can realize the recovery of Leymus chinensis population in degraded grassland.

The application discloses a kind of central plains area winter wheat and high-efficiency rotation of Konjac of bead bud, belongs to crop planting field, to solve central plains area winter wheat and soil continuous cropping obstacle in rotation of bead bud Konjac, technical problem of nutrient imbalance and pest intensification.The method comprises the following steps: sowing winter wheat in early October and harvesting in early June of next year; within 5 days after wheat harvesting, the straw is crushed and mixed with sulfur powder, and then deep ploughed back to the field; a sowing trench is dug, and phosphorus fertilizer and sulfur powder are applied at the bottom of the trench; before June 15, the Konjac seed tuber is placed in the trench, and the soil is covered and ridged; after the Konjac sprouts, potassium sulfate is applied during leaf expansion and tuber enlargement; in late October, after harvesting the Konjac, the remaining root system is removed, and composted cow manure is applied, followed by deep ploughing for wintering; in early October of the next year, winter wheat is planted as usual.The method is mainly used to improve the rotation efficiency and yield per unit area of farmland in central plains, and to improve the soil structure and sustainable fertility.

This invention relates to a microbial liquid organic fertilizer based on cotton stalk fermentation broth and acetylene salt mud, and its preparation method. The method for preparing the microbial liquid organic fertilizer based on cotton stalk fermentation broth and acetylene salt mud includes: preparing pre-mixed material A: adding bentonite colloid, acetylene salt mud phosphorus-iron extraction complex, and sodium pyrophosphate to cotton stalk fermentation broth 1 at 80-90℃, mixing well, adding trace elements and nitrogen fertilizer, mixing well, and then adding potassium humate; preparing pre-mixed material B: adding phosphorus fertilizer and potassium fertilizer to cotton stalk fermentation broth 2 at 80-90℃ to obtain pre-mixed material B; mixing and cooling pre-mixed materials A and B, adding functional microbial agents to obtain the microbial liquid organic fertilizer. The microbial liquid organic fertilizer based on cotton stalk fermentation broth and acetylene salt mud, and its preparation method, is made from cotton stalk fermentation broth and acetylene salt mud phosphorus-iron extraction complex through the addition of a suspending agent, trace element chelation, and compounding with macro-element fertilizer and microorganisms, overcoming the adverse effects of acetylene salt mud on the system stability and microbial agent activity.

The application provides a calcium-magnesium-silicon-rich organic fertilizer and a preparation method and application thereof, and belongs to the technical field of organic fertilizer.The application provides a calcium-magnesium-silicon-rich organic fertilizer, which comprises organic fertilizer, charcoal, rapeseed oil cake, bone meal, calcium-magnesium-phosphorus fertilizer, magnesium sulfate, magnesium carbonate, potassium fulvic acid from mineral sources, compound amino acid, microbial inoculum and borax.The calcium-magnesium-silicon-rich organic fertilizer is suitable for the soil characteristics of the main production area of late-maturing citrus in the southwest region and the growth requirements of citrus, can significantly improve the physicochemical properties and microecological health of the soil in the citrus garden, supplement key secondary elements such as calcium, magnesium and silicon in the soil and optimize the availability thereof, can enhance the stress resistance of citrus, promote the synergistic absorption and efficient utilization of nutrients such as nitrogen, phosphorus and potassium by the plant, effectively improve the quality of citrus fruits, realize the dual goals of high yield and stable yield and high quality and high price of citrus, and provide efficient and practical technical support for the green and sustainable development, quality improvement and efficiency increase of the late-maturing citrus industry in the southwest region.

The application belongs to the technical field of soil remediation, and provides a soil remediation agent based on a struvite-biochar composite material, and a preparation method and application thereof.The soil remediation agent comprises the following components in mass fractions: 30-50 parts of the struvite-biochar composite material, 20-35 parts of sepiolite, 3-8 parts of polyglutamic acid, 5-15 parts of humic acid, 5-12 parts of calcium carbonate and 1-3 parts of xanthan gum.The soil remediation agent can effectively reduce soil heavy metal availability and reduce crop heavy metal absorption, improve soil available phosphorus content and replace chemical phosphorus fertilizer application, and has the advantages of environmental friendliness, economic and ecological benefits, etc.

The application belongs to the technical field of planting and fertilization, and particularly relates to a diversity planting method for improving phosphorus fertilizer utilization efficiency of sunflower in saline-alkali soil, which solves the technical problem of low phosphorus fertilizer utilization efficiency of the existing sunflower planting method. The method first uses desulfurized gypsum as a soil conditioner, plants sunflower by ridge planting, and plants wild soybean, sueda and alfalfa in diversity, realizes inter-ridge crop coverage to reduce evaporation and suppress salt, cooperates with a composite phosphorus-solubilizing microbial agent containing bacillus subtilis, bacillus megaterium and pseudomonas fluorescens, enhances soil phosphorus-solubilizing microbial activity, and through precise water and fertilizer integrated management during the growth period of the sunflower, according to the needs of different growth periods, urea, potassium sulfate, potassium dihydrogen phosphate and other fertilizers are driped to ensure sufficient and balanced nutrition supply. The diversity planting method significantly improves the phosphorus fertilizer utilization efficiency in saline-alkali soil, is suitable for practical application in saline-alkali soil, and has wide popularization value.

This invention discloses a method for predicting the optimal phosphorus application rate for Fritillaria cirrhosa seedlings based on multiple soil characteristics. It belongs to the fields of plant nutrition, soil science, and traditional Chinese medicine cultivation. The method includes: obtaining data on Fritillaria cirrhosa yield and corresponding soil physicochemical properties, phosphorus cycle-related enzyme activity, and microbial community structure under different phosphorus application levels; standardizing soil and enzyme activity indicators, and preprocessing and extracting features from microbial data to obtain comprehensive feature variables; constructing a phosphorus application-yield nonlinear response model using phosphorus application rate as the independent variable and yield as the dependent variable; and determining the optimal phosphorus application rate that maximizes the predicted yield based on this model. This invention enables accurate estimation of the phosphorus requirement of Fritillaria cirrhosa, providing personalized phosphorus application schemes for different soil conditions, thereby effectively improving yield and phosphorus fertilizer utilization efficiency.

The present application relates to the field of environment and the field of agricultural biotechnology, and in particular to a kind of high-efficiency composite phosphorus-solubilizing bacterial agent and its preparation method, biological bacterial fertilizer and application, the high-efficiency composite phosphorus-solubilizing bacterial agent has active ingredient enterobacter cloacae HS6 and pantoea agglomerans CT3. The high-efficiency composite phosphorus-solubilizing bacterial agent formed by the combined application of enterobacter cloacae HS6 and pantoea agglomerans CT3 has high-efficiency phosphorus-solubilizing capacity and excellent stability, there is no antagonism between the two strains, but also can greatly improve the utilization efficiency of insoluble phosphorus, has the advantages of excellent phosphorus-solubilizing effect and high available phosphorus content, can reduce the use amount of chemical phosphorus fertilizer, suitable for use in agricultural production. The high-efficiency composite phosphorus-solubilizing bacterial agent has good prospects in the application of preparing biological bacterial fertilizer, in agricultural soil improvement, in phosphorus resource recovery and in promoting plant growth.

The application discloses a screening method and application of a phosphorus-accumulating and capacity-increasing material for a weak-acid and poor-slope cultivated red soil, and the screening method comprises the following steps: (1) establishing an annual cumulative increase of effective phosphorus of different phosphorus fertilizer varieties on the poor-slope cultivated red soil, and establishing a database; (2) establishing a crop uniform land potential database; (3) determining the spatial variation of the effective phosphorus of the slope cultivated red soil; and (4) determining the phosphorus-accumulating and capacity-increasing phosphorus fertilizer variety for the weak-acid and poor-slope cultivated red soil. The application solves the problems that the spatial variation of the phosphorus of the slope cultivated red soil is large, the effect of the phosphorus fertilizer on the phosphorus-accumulating and capacity-increasing of the slope cultivated red soil is covered, the expected effect of the phosphorus-accumulating and capacity-increasing of the red soil cannot be achieved in a field plot test for several years or even for ten years or more, and the screening method for the phosphorus-accumulating and capacity-increasing material for the weak-acid and poor-slope cultivated red soil is lacked.

This invention provides a controlled-release nitrogen blended fertilizer, its preparation method, and its application, belonging to the field of organic fertilizer technology. The controlled-release nitrogen blended fertilizer of this invention comprises nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, micronutrient fertilizer, and microbial inoculant. The nitrogen fertilizer has a multi-layered core-shell structure, consisting of a urea core layer, a first coating layer, an intermediate urea interlayer, a second coating layer, and an outer urea layer. This nitrogen fertilizer structure enables a three-stage gradient release of nitrogen, matching the nitrogen requirements of crops throughout their entire growth cycle. The microbial inoculant, composed of Bacillus subtilis and Trichoderma harzianum, has synergistic effects in promoting growth, preventing disease, and activating soil nutrients. This fertilizer is suitable for field crops such as corn, wheat, and rice. A single basal application can significantly improve nitrogen utilization, crop yield, and quality, showing promising application prospects.

The application provides a cold region rice precise fertilization method and device, a terminal and a storage medium, and relates to the technical field of agricultural fertilization. The method comprises the following steps: obtaining a target nutrient recommended input amount required by a target plot unit area, wherein the target nutrients comprise nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer; determining a target application amount of green intelligent fertilizer required by the target plot unit area according to the target nutrient mass percentage content of the green intelligent fertilizer suitable for the growth of cold region rice; determining a first nutrient required supplementary fertilizer supplementary amount by using the target application amount of the green intelligent fertilizer, the recommended input amount of the first nutrient and the mass percentage content of the first nutrient in the green intelligent fertilizer; and determining a fertilization strategy of the target plot according to the target application amount of the green intelligent fertilizer and the first nutrient required supplementary fertilizer supplementary amount, and in combination with the split management rules and application time window suitable for the growth cycle of cold region rice. The application can highly match the nutrient supply with the growth period demand of cold region rice.

The present application relates to the field of soil ecological restoration and farmland tillage management, in particular to an ecological regulation method for reducing the combined obstacles of yellow soil rice-oil rotation farmland, which is implemented in stages according to the agricultural time: S1, before rice transplanting, crushing straw, mixing compound functional microbial agent, matured organic fertilizer and calcium-magnesium-phosphorus fertilizer into 0-15 cm; S2, after rice harvesting, deep ploughing 20-25 cm and constructing ridge structure; S3, after ridge construction, interplanting Chinese milk vetch before rape sowing; S4, after rape harvesting, crushing rape straw and Chinese milk vetch into 20-25 cm and applying lime, maintaining higher water holding capacity in a short term; S5, annual circulation. Through the coupling of microorganism-structure-nutrient, the method can alleviate the problems of "thin, flat and sticky" of yellow soil, improve the aggregation and aeration, and promote the growth of root system and stable yield and production.

This invention proposes a method for improving nutrient utilization efficiency in oil palm through synergistic reduction of fertilization and mechanical weeding, relating to the field of agricultural planting management technology. The method involves the formulation of nitrogen, phosphorus, and potassium fertilizers, with pure nitrogen applied at a rate of 120-156 kg / ha per year, phosphorus pentoxide at 15-20 kg / ha per year, and potassium oxide at 160-210 kg / ha per year. The fertilizers are applied twice, in April and October each year, within a 2-meter radius of the oil palm trees. Mechanical weeding is performed at the same frequency within the 2-meter radius of the oil palm trees and between rows, without the use of chemical herbicides. This invention improves nitrogen utilization efficiency by over 65% while maintaining the yield of fresh oil palm fruit, and increases the yield increase of phosphorus and potassium fertilizers by over 195% and 20% respectively, while significantly reducing nitrogen leaching loss from deep soil layers. It is suitable for mature oil palm plantations on mineral soils.

The utility model relates to the field of agriculture, in particular to plant growing, and can be used in the cultivation of a perennial grain crop - grain wheatgrass for the conditions of semi-provided and unprovided dryland in the southeast of Kazakhstan with an annual rainfall of 200-400 mm. The technical solution of the utility model is drought resistance and efficient use of moisture, improvement of soil condition, stable grain and feed harvest, as well as reduction of costs for annual seed purchase and implementation of agrotechnical measures during its cultivation. The said technical result is achieved by a method of cultivating grain wheatgrass, which includes, in the first year, primary autumn tillage, pre-sowing surface tillage, winter sowing with rolling, and post-emergence treatment with a herbicide in the spring. According to the invention, primary tillage is carried out in the fall after harvesting the preceding crop once by plowing to a depth of 22-25 cm. Pre-sowing surface tillage is carried out by loosening the surface soil layer to a depth of 10-12 cm, sowing of grain wheatgrass is carried out in the fall using precision seeders in a wide-row method with a row spacing of 50 cm to a depth of 1-2 cm with simultaneous rolling and application of phosphorus fertilizers ammophos at a rate of P60 per 1 hectare, in the spring during the tillering phase, post-emergence treatment is carried out with the herbicide Ballerina at a rate of 0.4 l / ha in a tank mixture with the growth stimulator Beres 8 at a rate of 0.2 l / ha, and in the tube emergence phase, inter-row soil cultivation is carried out at a depth of 8-10 cm with the simultaneous application of ammonium nitrate at a rate of N60; in the earing phase, as pests appear, grain wheatgrass crops are treated with a tank mixture consisting of the insecticide Karatoshans at a rate of 0.2 l / ha and the growth stimulator Beres 8 at a rate of 0.2 l / ha. An additional technical result is achieved by cultivating grain wheatgrass according to the invention. In subsequent years, ammonium nitrate is applied early in the spring at a rate of N60, followed by light harrowing to lock in moisture. As the grain wheatgrass plants grow and develop, protective measures are implemented.