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1132 results about "Soil fertility" patented technology

Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality.

Soil fertility quality analysis method and system based on corn planting cultivated land

The invention provides a soil fertility quality analysis method and system based on corn planting cultivated land, and relates to the technical field of soil quality analysis and evaluation.The soil fertility quality analysis method comprises the steps that a visible-near infrared spectrum image of a soil sample is collected, reflectivity data of a key wave band is extracted from the spectrum image, and a soil health index and a nutrient balance index are calculated; calculating a soil fertility quality comprehensive score for comprehensively evaluating the soil fertility according to the soil health index, the nutrient balance index and the soil moisture content; comparing the comprehensive score of the soil fertility quality with a preset threshold value, and evaluating the soil fertility; a machine learning model is introduced, historical soil data is trained and predicted, a quality analysis model is constructed based on a random forest algorithm, the trained quality analysis model is put into use, and new data is continuously learned to dynamically adjust and update, so that the soil detection process is simplified, and the soil fertility change can be monitored in real time. And agricultural managers are helped to make scientific decisions.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Data optimization and intelligent decision support system in cultivated land resource early warning

The invention relates to the technical field of cultivated land resource management, and discloses a data optimization and intelligent decision support system in cultivated land resource early warning, which comprises a cultivated land data acquisition module, a soil index analysis module, a degradation identification module, a land force deduction module, a threshold adaptation module and a decision generation module. The cultivated land data acquisition module acquires cultivated land multi-dimensional attribute data in real time and partitions the data; the soil index analysis module divides soil fertility units and fuses soil indexes to generate resource state vectors; the degradation identification module extracts a core degradation factor, establishes a risk layering model and obtains a data correction coefficient; the land force deduction module identifies the association rule and the dynamic correction factor and calculates the land force attenuation gradient; the threshold adaptation module derives an optimal early warning threshold and generates a risk difference sequence; and the decision generation module analyzes the sequence and integrates the sequence into a regulation and control decision scheme. According to the system, intelligent analysis of cultivated land data, dynamic early warning of degradation risks and accurate decision making are realized, and scientificity and efficiency of cultivated land resource management are improved.
Owner:SHANDONG AGRI & ENG UNIV +1

Traditional Chinese medicinal material quality evaluation method and system based on big data analysis

The invention discloses a traditional Chinese medicinal material quality evaluation method and system based on big data analysis, and relates to the field of traditional Chinese medicinal material detection, and the main scheme is as follows: obtaining soil parameter data of different medicinal material planting areas, and analyzing to obtain a soil fertility index and a planting suitability index; obtaining effective component contents of the traditional Chinese medicinal materials, and calculating effective component predicted values of the traditional Chinese medicinal materials; calculating a machining process stability index by analyzing the machining process parameters; calculating a mildew evaluation index according to the environmental mildew data and the medicinal material mildew data in the storage environment; a quality evaluation comprehensive index is obtained through comprehensive analysis; comparing the quality evaluation comprehensive index with a quality evaluation comprehensive index threshold value, judging whether the comprehensive quality evaluation of the traditional Chinese medicinal materials is qualified or not, and if the comprehensive quality evaluation is not qualified, judging a link causing a quality problem; the problems that a traditional Chinese medicinal material quality evaluation method in the prior art focuses on a single component and only focuses on the quality of traditional Chinese medicinal materials in a certain specific link are solved.
Owner:INNER MONGOLIA UNIV FOR THE NATITIES

Intelligent fertilization and water supply method and system

An intelligent fertilization and water supply method and system. The method comprises the following steps: step a, comprehensive soil monitoring, involving: comprehensively monitoring various soil indexes by means of a plurality of sensors, so as to obtain real-time data of the soil indexes; b, consideration of crop-specific requirements, involving: for the varieties and growth stages of different crops, thoroughly studying the unique moisture and nutrient requirements of the crops, so as to ensure the rationality and accuracy of a fertilization amount; c, comprehensive consideration of environmental factors, involving: collecting data of surrounding environmental factors; d, utilization of an intelligent irrigation mode, involving: by using a cyclic irrigation mode, an intermittent irrigation mode, etc., in combination with the water requirement pattern of each crop and a change in soil moisture, realizing efficient water utilization; e, implementation of a dynamic fertilization plan, involving: on the basis of a change in a crop growth condition and in soil fertility, dynamically adjusting fertilization time, frequency and dosage, so as to ensure that the nutrient supply matches the requirements of each crop; and f, implementation of a precise fertilization technique, involving: precisely delivering fertilizer to an absorption part of each crop, so as to improve the efficiency of nutrient utilization.
Owner:ANHUI SCI & TECH UNIV

Citrus orchard soil fertility query method and system based on artificial intelligence

The invention relates to the technical field of soil fertility query analysis, and discloses a citrus orchard soil fertility query method and system based on artificial intelligence. The method comprises the following steps: collecting surface and deep soil samples in a citrus orchard for physical and chemical detection, and filling missing values with space-time dual interpolation to obtain a data set; extracting physicochemical and biological activity features, and forming feature vectors by adopting a fusion strategy; inputting a cascade forest model to carry out five-level classification; classifying the sampling points to generate a distribution diagram; intelligent diagnosis is carried out, the fertilization amount is calculated, and a differentiated fertilization recommendation map is generated. According to the application, soil fertility accurate evaluation, spatial distribution visualization and differentiated fertilization recommendation based on multi-source data are realized, so that the fertilizer utilization rate is improved, the environmental risk is reduced, and the citrus yield and quality are improved.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Soil fertility remote sensing inversion method based on machine learning

The invention relates to the technical field of agriculture, and discloses a soil fertility remote sensing inversion method based on machine learning. Acquiring and preprocessing a historical soil database, historical remote sensing image data and target year remote sensing image data, including radiometric calibration, atmospheric correction and geometric correction; calculating a vegetation index and a leaf area index based on the preprocessed historical remote sensing image data, and determining a bare soil window period; creating a fishing net grid covering the research area based on the spatial distribution of the bare soil window period; historical soil parameters and remote sensing image wave band reflectivity values of corresponding window periods are extracted from the fishing net grids, and training samples are constructed; the training samples are divided into a training set and a verification set, and feature selection is carried out through a correlation coefficient method; establishing a soil parameter inversion model based on the training set by adopting a multi-model cooperative training mode; and performing soil fertility inversion on the remote sensing image data of the target year by using the trained model. In conclusion, the prediction precision of the soil fertility can be improved.
Owner:TIANJIN TIANYI TECHNOLOGY CO LTD

Land ecological condition monitoring system and method based on remote sensing data

The invention belongs to the field of remote sensing monitoring, and particularly relates to a land ecological condition monitoring system and method based on remote sensing data, and the method comprises the steps: obtaining a remote sensing image sequence through a preprocessing module, and obtaining initial cultivated land segmentation sub-regions and edge features; a feature extraction module extracts spatial features and fluctuation values such as normalized vegetation indexes and enhanced vegetation indexes based on the feature extraction module, and constructs a space-time coordinate system; the region determination module determines a real cultivated land area and a cultivated land area fluctuation value; the inversion module inverts the vegetation coverage, the moisture content and the soil fertility, and obtains an ecological degradation fluctuation value by combining with phenological period anomaly recognition; the early warning module performs real-time early warning based on the cultivated land area fluctuation value and the ecological degradation fluctuation value, and visually marks the position, the type and the severity of a change region through a GIS platform; according to the invention, precise monitoring and dynamic early warning of the ecological condition of the land are realized.
Owner:JIANGXI AGRICULTURAL UNIVERSITY

Farmland soil data digital analysis method and system

The invention discloses a farmland soil data digital analysis method and system, and the method comprises the steps: obtaining a farmland image, and dividing the image into different planting regions according to plants; based on the images of different planting areas, dividing the images into a plurality of sub-areas, obtaining soil samples in each sub-area, and analyzing the samples to obtain soil fertility in the sub-areas; based on the land fertility of different time nodes in each sub-region, obtaining a land fertility change condition; and comprehensively evaluating and analyzing the soil fertility change condition of the planting area based on the soil fertility change condition in each sub-area. The farmland soil fertility monitoring system has the advantages that accurate monitoring and dynamic tracking of farmland soil fertility are realized through image analysis and soil sample collection, and scientific decision support is provided for agricultural production. Through analysis of the soil fertility change trend, optimization of a fertilization scheme is facilitated, the land utilization efficiency is improved, and sustainable agricultural development is promoted.
Owner:YULIN NORMAL UNIVERSITY

Dry farming soil fertility rapid detection and fertilization method

The invention relates to the technical field of analysis of physical and chemical properties of soil, in particular to a dry farming soil fertility rapid detection and fertility improvement method, which comprises the following steps: sorting a colloidal phase and a dissolved phase of a humic acid complex based on density difference and dielectric property difference through a gradient centrifugation and dielectrophoresis enriched physical field synergistic separation technology; a two-channel detection time sequence is optimized by adopting a genetic algorithm, a non-overlapping time sequence signal flow is generated by taking a signal interference suppression ratio as a fitness function, and time domain cross interference is suppressed. A programmable resistance-capacitance compensation model is constructed, parallel capacitor array parameters are dynamically adjusted to correct electrochemical phase angle offset, and a three-dimensional fertility distribution curved surface and a residual map are generated in combination with a Kriging interpolation model. On the basis of residual spectrum spatial distribution characteristics, a cross-linked slow-release system is deployed to improve the organic matter binding capacity of a humic acid deficiency area, a mesoporous zeolite-based passivator is applied to regulate and control an ion migration path, a closed-loop feedback mechanism is formed through dynamic phase response monitoring, and accurate detection and directional remediation of soil fertility are achieved.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF AGRI & ANIMAL HUSBANDRY SCI

Microbacterium capable of producing siderophore, dissolving potassium, promoting growth and relieving saline-alkali stress of plants and application of microbacterium

The invention discloses a microbacterium capable of producing siderophores, dissolving potassium, promoting growth and relieving saline-alkali stress of plants and application of the microbacterium. The invention relates to the field of microorganisms, and provides a dendrobium nobile microbacterium, the dendrobium nobile microbacterium is a dendrobium nobile microbacterium, the strain number of the dendrobium nobile microbacterium is 2T1, and the registration number of the dendrobium nobile microbacterium in the China General Microbiological Culture Collection Center is CGMCC No. 32856. The strain is a new strain of microbacterium and has the capabilities of secreting siderophores and dissolving potassium. Pot experiments show that compared with uninoculated control, the root length and dry weight of wheat can be improved after the strain is inoculated under saline-alkali stress. The microbacterium dendrobii 2T1 can be used as a microbial organic fertilizer, and is used for improving the soil fertility, relieving the saline-alkali stress of crops and improving the saline-alkali adaptability of the crops.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI +1

Compound microbial fertilizer and application thereof in field planting

PendingCN119570653APromote production increaseImprove fertilityBiocidePlant growth regulatorsToxicologyBacilli
The invention discloses a compound microbial fertilizer and application thereof in field planting. The survival rate of the paenibacillus mucilaginosus HX-02 disclosed by the invention can be up to 62.8% after 170d under the condition of 38% of nitrogen, phosphorus and potassium. The strain is organically combined with bacillus velezensis RKN1111 and a nitrogen-phosphorus-potassium inorganic fertilizer (N + P2O5 + K2O = 38%), the compound microbial fertilizer is developed, the viable count of effective bacteria is not less than 1.5 billion / g, and the viable count of paenibacillus mucilaginosus is not less than 0.5 billion / g. The compound microbial fertilizer taking the strain as a main functional bacterium is applied to field corn planting, can replace part of chemical fertilizers and increase soil fertility, can reduce the use amount of the chemical fertilizers by 15.56%, and achieves the effects of promoting the growth of field crops and increasing the yield by 10.2%. The paenibacillus mucilaginosus HX-02 is separated from soil, is harmless to human, livestock and environment, and meets the requirements of green plant protection and agricultural sustainable development.
Owner:HEBEI UNIVERSITY

Water and fertilizer demand prediction method and system for improving crop yield

The invention provides a water and fertilizer demand prediction method and system for improving crop yield, and relates to a data processing system, and the method comprises the steps: S1, obtaining meteorological data; s2, calculating soil water content data; s3, recording farming data; s3, calculating soil fertility data; s5, setting a root depth calculation module and a pollination rate calculation module in the Wofost model, and optimizing the Wofost model according to calculation results of the root depth calculation module and the pollination rate calculation module; s6, inputting meteorological data, soil water content data, soil fertility data and farming data based on a Wofost model, and performing yield estimation calculation; s7, calculating a daily irrigation demand according to the meteorological data, the soil water content data, the farming data and the crop transpiration data; and S8, calculating a daily fertilization demand according to the soil fertility data, the farming data and the nutritional demand data. The system can help farmers to make preparations before water and fertilizer abnormal conditions occur in farmland, realizes accurate management of water and fertilizer, reduces water and fertilizer waste, and improves the yield and quality of agricultural products.
Owner:TIANJIN TIANYI TECHNOLOGY CO LTD

Nutritional moisturizing ceramsite as well as preparation method, application and application method thereof

The invention provides nutritional moisturizing ceramsite as well as a preparation method, application and an application method.The method comprises the following steps: firstly, uniformly mixing sieved power plant fly ash with commercial cement, solid nutrition powder and coal gangue powder, and adding hydrogen peroxide to obtain porous ceramsite; the preparation method comprises the following steps: adsorbing a nutritional agent by porous ceramsite, wrapping the porous ceramsite with phosphorylated chitosan, carrying out hydroformylation and alkynylation, and reacting with the modified microcapsule to obtain the nutritional moisturizing ceramsite. The invention also provides an application of the nutritional moisturizing ceramsite in desertification soil improvement. According to the application method of the nutritional moisturizing ceramsite in desertification soil improvement, the nutritional moisturizing ceramsite is divided into large, medium and small ceramsite according to the particle size, and directly covers a desertification land to form a nutritional moisturizing ceramsite layer in a big-end-up form, a uniform form, an interlayer form, a mixed form or a uniform mixing form. The nutritional moisturizing ceramsite prepared by the invention can improve soil fertility and promote plant growth.
Owner:ORDOS INST OF APPLIED TECH

Simplified corn nitrogen fertilizer dosage recommendation method based on nitrogen balance standard

The invention discloses a light and simplified corn nitrogen fertilizer dosage recommendation method based on a nitrogen balance standard, and relates to the technical field of agricultural resource environment. According to the corn nitrogen fertilizer dosage recommendation method based on the nitrogen balance standard, the nitrogen fertilizer dosage can be recommended only by knowing the corn yield and the soil fertility grade, the surplus of nitrogen in soil can be reduced to the maximum extent on the basis of ensuring the crop yield, the environmental loss of active nitrogen is further reduced, and the crop yield is improved. Therefore, high-yield, high-efficiency, sustainable and healthy development of agriculture is promoted.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI

Simplified rice nitrogen fertilizer dosage recommendation method based on nitrogen balance standard

The invention discloses a simplified rice nitrogen fertilizer dosage recommendation method based on a nitrogen balance standard, and relates to the technical field of agricultural resource environment. According to the rice nitrogen fertilizer dosage recommendation method based on the nitrogen balance standard, the nitrogen fertilizer dosage can be recommended only by knowing the rice yield and the soil fertility grade, the surplus of nitrogen in soil can be reduced to the maximum extent on the basis of ensuring the crop yield, the environmental loss of active nitrogen is further reduced, and the economic benefit is improved. Therefore, high-yield, high-efficiency, sustainable and healthy development of agriculture is promoted.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI

Preparation method of carbon quantum dot reinforced subcritical artificial humic acid and use method of carbon quantum dot reinforced subcritical artificial humic acid in rice field

The invention provides a method for preparing carbon quantum dot reinforced subcritical artificial humic acid and applying the carbon quantum dot reinforced subcritical artificial humic acid to a rice field, which comprises the following steps: collecting organic wastes, and drying, grinding and sieving the organic wastes to obtain pretreated raw materials; the preparation method comprises the following steps: mixing pretreated raw materials with water, reacting in a hydrothermal carbonization system at 200-280 DEG C for 1-3 hours, modifying through acid-base pretreatment, adjusting a reaction medium or an additive, and naturally cooling to obtain a natural substance subjected to hydrothermal carbonization; carrying out solid-liquid separation on the natural substance subjected to hydrothermal carbonization by using a 100-mesh coarse filter screen to obtain solid-phase hydrothermal carbon and liquid-phase artificial humic acid; carrying out purification treatment on the liquid-phase artificial humic acid for 48 hours by using a dialysis bag to obtain carbon quantum dots and characterizing the carbon quantum dots; the carbon quantum dot reinforced subcritical artificial humic acid is applied to a rice field, and is additionally applied in a fertilization period. Compared with a traditional composting technology, the scheme has the advantages that the carbon conversion rate is increased by 2-3 times, the soil fertility can be improved, and the rice yield is increased.
Owner:JIANGSU ACAD OF AGRI SCI +1

Saline-alkali land treatment soil conditioner and preparation method thereof

The invention relates to a soil conditioner for saline-alkali land treatment and a preparation method, and belongs to the technical field of soil conditioners. The soil conditioner for saline-alkali land treatment is prepared from a fermented fertilizer, biomass charcoal II, corn straw powder, attapulgite powder, humic acid and a compound microbial agent. The soil conditioner disclosed by the invention can be used for reducing the pH value of soil, reducing salinity, promoting the recovery of organic matters and improving the fertility of the soil, and is beneficial to improving the yield of crops.
Owner:SHANDONG ZHONGXIN AGRI DEV CO LTD

Method for improving carbon sequestration capability of ecological restoration base material containing kitchen garbage by using arbuscular mycorrhiza

The invention provides a base material and a method for improving the carbon sequestration capacity of an ecological restoration base material containing kitchen garbage through arbuscular mycorrhiza. The base material comprises a dry spraying ecological restoration base layer and a wet spraying surface layer. The surface layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture A, planting soil, a soil adhesive, a water-retaining agent, biochar and a compound fertilizer; the base layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture B, planting soil, a soil adhesive, 100-mesh corn straw, biochar and a compound fertilizer. According to the method, pollution of the kitchen garbage to the environment is effectively reduced, the resource value of rich nutrients in the kitchen garbage is fully played, the functions of organic acid generated after the kitchen garbage is decomposed and arbuscular mycorrhiza for adjusting osmotic equilibrium and the like are fully played, the soil structure of the saline-alkali area can be improved, the soil fertility is improved, and the soil quality is improved. The salt tolerance of the plant is improved while the alkaline environment is improved.
Owner:CHINA THREE GORGES UNIV

Winter wheat field soil fertility evaluation data processing method based on comprehensive weight calculation

The invention discloses a winter wheat field soil fertility evaluation data processing method based on comprehensive weight calculation, and relates to the technical field of data processing, and the method comprises the steps: S1, collecting nutrient content and moisture retention data from field soil through a sensor network, performing grouping processing on the acquired nutrient content and moisture retention data by adopting decision node splitting and entropy calculation to obtain a soil fertility layering result; s2, according to a soil fertility layering result, acquiring root depth and leaf moisture content indexes of the winter wheat in different layers of soil from crop monitoring equipment, analyzing association strength of the root depth and leaf moisture content indexes and fertility layering by adopting leaf node classification and feature selection standards, and determining a fertility contribution coefficient; according to the winter wheat field soil fertility evaluation data processing method based on comprehensive weight calculation, efficient resource allocation and stable yield are realized, and the drought resistance and resource utilization efficiency of winter wheat in a drought environment are remarkably improved.
Owner:CROP INST ANHUI PROV ACAD OF AGRI SCI

Organic fertilizer for improving soil fertility of sand land

The invention relates to the technical field of land treatment, in particular to an organic fertilizer for improving the soil fertility of a sand land. Comprising the following raw materials in parts by weight: 3-12 parts of a microbial agent, 20-50 parts of volcanic rock, 5-12 parts of an additive, 32-45 parts of sodium bentonite, 12-18 parts of a functional agent, 5-25 parts of a modifier and 15-32 parts of a water retention material. By increasing organic matters in the soil, the viscosity of the soil is improved, the air permeability, water retention and permeability of the soil are improved, the formation of a soil aggregate structure is promoted, and the water and fertilizer retention capability of the sand soil is improved.
Owner:INNER MONGOLIA UNIV FOR THE NATITIES

Soil fertility intelligent evaluation method and system based on image recognition

The invention discloses a soil fertility intelligent assessment method and system based on image recognition, and relates to the technical field of data processing, and the method comprises the steps: obtaining land image information of a to-be-assessed region, the land image information comprising a multispectral image, a thermal imaging image and an RGB image of the to-be-assessed region; carrying out image preprocessing on the land image information, and carrying out vegetation coverage and health assessment according to the multispectral image: speculating soil characteristics according to the RGB image: speculating the humidity change of a soil surface layer according to the temperature distribution of a thermal imaging image, and identifying a drought region and a region with sufficient moisture; integrating the high-resolution texture features of the RGB image, the spectral information of the multispectral image and the speculation result of the temperature distribution of the thermal imaging image to generate a comprehensive analysis result; and classifying soil types and evaluating fertility grades according to a comprehensive analysis result. The problem that in the prior art, in intelligent soil fertility evaluation, workers need to carry out on-site sampling examination is solved, and the technical effect of improving the soil fertility evaluation efficiency is achieved.
Owner:LINYI AGRI TECH EXTENSION CENT

Regional planting pattern matching method, system, equipment and medium

The invention discloses a matching method, system, equipment and medium for a regional breeding pattern, and relates to the technical field of crossing of agricultural resource management and geographic information systems, and the method comprises the steps: obtaining soil fertility data, crop types and areas, regional breeding manure nutrient supply and nitrogen and phosphorus demand per unit area; according to crop types and areas in the planting and breeding area, nitrogen and phosphorus demand per unit area and soil fertility data, the matching degree of regional breeding manure nutrient supply and planting industry demand is quantified, and a planting and breeding balance index is obtained; obtaining a critical distance when the economic value of the manure transportation cost is equal to that of the manure transportation cost instead of the chemical fertilizer transportation cost, and screening out a resource allocation path with the lowest cost and the highest efficiency; and dynamically adjusting the planting structure according to the planting and breeding balance index and the resource allocation path, and screening out the optimal pattern configuration. According to the method, the problem of uneven distribution of nutrients among regions is solved, the resource utilization efficiency is improved, and global optimization of economic, ecological and social benefits is realized.
Owner:NORTHWEST A & F UNIV

Soybean fertilization system containing fertilization management module and application thereof

The invention provides a soybean fertilization system containing a fertilization management module and application thereof, and relates to the technical field of soil analysis and evaluation, the system comprises a soil water content monitoring module, a soil fertility evaluation module, a fertilization management module, a water utilization evaluation module and a nutrient element dynamic regulation module; a farmland is divided into sub-regions according to different depths, the soil water content of each depth is monitored, the soil water content is monitored in real time, water content abnormity is found in time, and an alarm is given out; evaluating the content of main nutrient elements in the soil, and generating a soil fertility coefficient in combination with the demand data of the soybeans on the nutrient elements; adjusting the irrigation rate to be unchanged according to the water utilization rate, recording the nutrient element variation, determining the nutrient element with the maximum change, and adjusting the proportion in the chemical fertilizer; the precision and efficiency of farmland management are improved, the resource consumption of agricultural production can be remarkably reduced, the environment is protected, and meanwhile the yield and quality of crops are improved.
Owner:HEILONGJIANG BLACK SOIL PROTECTION & UTILIZATION RESEARCH INSTITUTE (HEILONGJIANG ACADEMY OF AGRICULTURAL SCIENCES INSTITUTE OF RURAL ENERGY & ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE OF AGRICULTURAL SCIENCES)

Fertilization recommendation method combined with rice seedling raising fertilizer carrying technology

The invention discloses a fertilization recommendation method combined with a rice seedling raising fertilizer carrying technology in the technical field of agricultural production. The fertilization recommendation method comprises the following steps: S1, acquiring geology and seedling raising states; s2, presetting rice growth requirements; s3, calculating to obtain an additional nutrient amount; s4, dividing the growth cycle of the rice; s5, recommending the fertilization amount according to stages; according to the method, nutrient supply of seedling raising fertilizer is brought into a whole-growth-period fertilization plan, and accurate matching is achieved; on the premise that the yield is not affected, the fertilizing amount in the early and whole growth periods of rice is remarkably reduced, and the fertilizer utilization rate is increased; through dynamic matching of the early-stage fertilizer loading and supplying amount and the middle and later-stage fertilizer needing amount, resource waste caused by excessive fertilization is avoided, and the fertilizer cost is reduced; the nutrient proportion is scientifically distributed according to the nutrient absorption efficiency of each stage, and the fertilizer utilization rate is increased; the final yield can be improved; soil fertility indexes and historical data are combined, the profit and loss trend of soil nutrients is recognized, and cyclic utilization of the soil nutrients is achieved through dynamic matching of the sustained and controlled release fertilizer and the organic fertilizer.
Owner:YANGZHOU UNIV

Chinese chestnut composite phosphate-solubilizing bacterial agent and application thereof

The invention discloses a Chinese chestnut composite phosphate-solubilizing bacterial agent and application thereof, and belongs to the technical field of microorganisms. The invention provides a compound phosphate-solubilizing bacterial agent. The compound phosphate-solubilizing bacterial agent is prepared from phosphate-solubilizing bacteria GXLK-W6 and phosphate-solubilizing fungi GXLK-WZ1-1. The phosphorus-solubilizing bacteria GXLK-WZ1-1 are classified and named as Aspergillus niger, the preservation number of the bacteria is CGMCC (China General Microbiological Culture Collection Center) No.41390, the phosphorus-solubilizing bacteria GXLK-W6 are classified as Burkholderia pyrrolothrix, and the preservation number of the bacteria is CGMCC No.31124. The phosphorus-solubilizing bacteria GXLK-WZ1-1, the phosphorus-solubilizing bacteria GXLK-WZ1-1, the phosphorus-solubilizing bacteria GXLK-WZ1-1, the phosphorus-solubilizing bacteria GXLK-WZ1-1 and the phosphorus-solubilizing bacteria GXLK-WZ1-1 and The strains are independently separated from rhizosphere soil of Chinese chestnuts and are screened. And calcium phytate is added into the microbial inoculum to serve as a slow-release phosphorus source. The compound phosphate-solubilizing bacterial agent improves the growth amplification of Chinese chestnut seedlings, promotes the growth of root systems, and promotes the phosphorus absorption of plants. The compound phosphate-solubilizing bacterial agent can improve the dissolution efficiency of inorganic phosphorus in soil and increase the content of soluble available phosphorus, and plays an important role in improving the fertility of the soil.
Owner:GUANGXI FORESTRY RES INST

Rapid evaluation method and system for soil fertility level

The invention provides a rapid evaluation method and system for the soil fertility level, and relates to the technical field of soil fertility detection.The rapid evaluation method comprises the steps that an original absorbance spectral data curve is obtained by scanning a soil sample, the moisture peak absorbance, the actual peak position wavelength and the moisture synthetic frequency characteristic peak width are extracted, and a spectral data basis is provided; a water-salt optical path coupling factor is calculated, water-salt correction operation is carried out in combination with a volume correction coefficient, a virtual dry soil spectrum data curve is obtained, interference of salt on a water optical path is quantified, and a water background and salt masking are eliminated; constructing a characteristic virtual baseline of the organic matter and the total nitrogen, calculating an integral area to obtain characteristic intensity of the organic matter and the total nitrogen, and providing a physical input variable for quantitative inversion; introducing a water-salt optical path coupling factor to invert the organic matter content and the total nitrogen content, and correcting signal depression caused by salt stress; the effective fertility index is calculated and graded by combining the organic matter content and the total nitrogen content of the soil, and the actual fertilizer supply capacity of the soil is comprehensively evaluated.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Fertilizer for hot peppers as well as preparation method and fertilization method thereof

The invention belongs to the technical field of fertilizers, and particularly relates to a fertilizer for capsicum as well as a preparation method and a fertilization method thereof. In the pepper planting process, the proportion of carbon and nitrogen in the soil is coordinated, the nutrient slow release effect is achieved, the contradiction between vegetative growth and reproductive growth of pepper plants is relieved, and the fertilizer utilization rate is increased. In addition, a microbial agent is applied to the roots after transplanting, and the soil matrix and the disease resistance are enhanced by utilizing the disease resistance and the soil microenvironment improving capability of the microbial agent, so that the pepper yield is increased. The technology is simple and easy to implement, convenient to operate and quick in effect, common farmers or farmers can easily implement the technology, soil fertility and disease resistance can be continuously improved, and the problem of nitrogen and phosphorus loss of the peppers is effectively solved.
Owner:THE KEY LAB OF CHEM FOR NATURAL PROD OF GUIZHOU PROVINCE & CHINESE ACADEMY OF SCI

Organic fertilizer for planting local cereal crops in plateau region and preparation method of organic fertilizer

The invention discloses an organic fertilizer for planting local cereal crops in a plateau region and a preparation method thereof, and belongs to the technical field of agricultural planting. The organic fertilizer for planting local cereal crops in the plateau region is prepared from the following preparation raw materials: decomposed animal waste, vermiculite, humic acid, citric acid, fish meal, bone meal, straw, cake meal and a compound microbial agent, the carrier is prepared from decomposed animal waste, vermiculite, humic acid and citric acid, so that the mechanical strength and durability of the carrier can be improved, and a good physical state can be kept in the storage, transportation and use processes; through compound use of bacillus licheniformis, bacillus subtilis and bacillus laterosporus and adjustment of the dosage ratio of all strains and the viable count of the compound microbial agent, the soil micro-ecological environment can be improved, breeding of beneficial microorganisms in soil is promoted, growth of harmful bacteria is inhibited, and the soil fertility and the water and fertilizer retention capacity are improved; the fertilizer has a good promotion effect on the growth of spring wheat, oat and other plateau cereal crops.
Owner:INNER MONGOLIA UNIV OF TECH

Biochar-based slow-release oxygen material for gleying soil improvement as well as preparation method and application of biochar-based slow-release oxygen material

The invention belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a biochar-based oxygen-releasing material for gleying soil improvement as well as a preparation method and application of the biochar-based oxygen-releasing material. The biochar-based oxygen release material is a CaO2 at phosphorus-rich biochar material obtained by taking modified phosphorus-rich biochar as a carrier and combining with calcium peroxide, and has remarkable beneficial effects in the field of gleying rice field improvement. According to the biochar-based oxygen release material, the mass fraction of calcium peroxide is remarkably increased, so that the oxygen release function of the material is enhanced, and the biochar-based oxygen release material has important significance for improving the ventilation condition of a rice field and promoting the growth of a rice root system. In the preparation process, raw materials such as dimethylbenzene and polyethylene which may cause soil pollution and ecological problems are avoided, and the environment-friendly concept is embodied. Meanwhile, the modified biochar not only serves as a carrier to improve the loading capacity of calcium peroxide, but also has the function of releasing a phosphate fertilizer, and is beneficial to improvement of the soil fertility of the rice field and increase of the rice yield.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Carbon-water biomass fertilizer and preparation method thereof

The invention relates to the technical field of fertilizers, in particular to a carbon-water biomass fertilizer and a preparation method thereof. The organic fertilizer is prepared from the following raw materials in parts by weight: 4000 to 5000 parts of solid wood sawdust, 80 to 120 parts of vegetable bran, 80 to 120 parts of wheat bran, 200 to 300 parts of cow dung, 200 to 300 parts of sheep manure, 20 to 40 parts of brown sugar, 30 to 50 parts of corn starch and 80 to 120 parts of microbial compound strains. The solid wood sawdust, vegetable bran, wheat bran, cattle and sheep manure and other agricultural byproducts are used as raw materials, decomposition of organic matters is accelerated under the action of fermentation and microbial composite strains, and the content of extractable organic carbon in soil is increased. According to the present invention, the soil structure and the soil fertility can be easily improved, the plant growth can be promoted, the resource utilization of the agricultural waste can be achieved, and the characteristics of environmental protection and sustainability are provided.
Owner:TIBET YUHAN INTELLIGENT TECHNOLOGY CO LTD