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65results about How to "Inhibit salt return" patented technology

Saline-sodic land reclamation and control method

The invention relates to a saline-sodic land reclamation and control method. Wide and deep research is long developed on the reclamation of saline-sodic land at home and abroad, and more focuses on engineering measures than applies biological techniques; although achievement has been made, some insurmountable difficulties still exist. The saline-sodic land reclamation and control method comprises the following steps: bulk deep loosening, applying soil deep loosening agents and saline-sodic soil improvement agents to deep loosening soil, purposefully and proportionally applying biologically organic fertilizer according to the composition of soil detected by adopting a nutrient balance method and a nitrogen phosphorus and potassium proportioning method which both comprise the following steps: subtracting soil nutrient-supplying amount from the fertilizer requirement of target yield, supplementing the balance through fertilizing, hathpace ridge forming, draining water and controlling salt, planting green manure-saline alkali tolerant high-yielding grass crop jerusalem artichoke to thoroughly improve the soil.
Owner:王彤

Method for directly planting macrophanerophyte in natural soil of coast silt severe saline-alkali soil

The invention relates to the technical field of severe saline-alkali soil greening, in particular to a method suitable for directly planting macrophanerophyte in natural soil of coast silt severe saline-alkali soil of which 1 m soil body contains more than 2.0 percent of total salt. The method comprises the following steps: building a burrock-type platform field through drainage trenching; paving a water supplying pipeline; broadcasting phosphogypsum and humic acid; then broadcasting semi-decomposed maize straw manure for soil amelioration; conducting mechanical deep tillage and land leveling; paving water seepage pipes; leaching salt through fresh water; electing a macrophanerophyte type; planting. According to the invention, the physical chemical property of the soil is improved through 'soil amelioration, fertilization and deep tillage', so that soil leaching is accelerated while the soil is fertilized. Therefore, a soil ecological environment suitable for tree growth is formed gradually, and lasting greening is further realized. Compared with the greening method in which the ground is elevated through soil dressing, the method has the advantages that cost is reduced; the macrophanerophyte survival rate is higher than 95 percent; low-cost lasting greening of severe saline-alkali soil is realized in very deed; the economic benefit and ecologic landscape of severe saline-alkali soil greening are improved remarkably.
Owner:河北省农林科学院滨海农业研究所

Saline-alkali soil improving agent, and preparation method thereof

The invention discloses a saline-alkali soil improving agent, and a preparation method thereof. The preparation method comprises following steps: fermented plant fiber and fermented animal excreta are uniformly mixed and grinded so as to obtain a mixture of 80 to 100 meshes; wood vinegar and water are added, uniform mixing is carried out, and an obtained mixed material is subjected to pelletizing and drying until water content ranges from 3 to 8%, wherein the adding amount of water accounts for 5 to 30% of the total weight amount of the mixture; an obtained product is sieved so as to obtain a granular mixture with a particle size ranging from 3 to 5mm; the granular mixture is subjected to drying and cooling, and a microorganism agent is sprayed onto the surface of the granular mixture; and an obtained semifinished product is uniformly mixed with a mixture A and a mixture B so as to obtain a finished product, wherein the mixture A is obtained via uniform mixing and grinding of ground phosphate rock, vermiculite, medical stone, sodium alginate, and polyacrylamide to 120 to 200 meshes, and the mixture B is obtained via uniform mixing and grinding of humic acid and furfural residue to 80 to 100 meshes. The saline-alkali soil improving agent is capable of reducing soil alkalinity, activating soil, reducing salinity and alkalinity effectively, improving saline-alkali soil structure, improving soil fertilizer conservation and water-holding capacity, improving saline-alkali soil physical and chemical properties, and realizing positive cycling of saline-alkali soil.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Coast saline-alkali soil forestation method

ActiveCN101322470ASolve the problem of insufficient fresh water resources for afforestationSmooth infiltrationClimate change adaptationWatering devicesAlkali soilIsolation layer
The invention discloses a coastal kaline soil forestation method, comprising the following steps: A. trenching and building ridges, and building rain collection beds; B. setting rain collection surfaces; C. digging plant pits, and setting salt isolation layers; D. collecting tree species and planting; E. setting surface cover layers of plant pits; F. tending, and weeding at proper time; wherein, the step of trenching and building ridges, and building rain collection beds is based on the design of forestation spacing, and flow collection trenches are dug at interval of a row spacing along the direction of rows; the depth of the trench bottom is 20cm to 25cm; the ground surface between the ridge and the trench bottom is trimmed to form a shallow v-shaped groove; the sloping surfaces are leveled and compacted to form the rain collection beds. The coastal moderate kaline soil forestation technology of the invention greatly increases the water content of soil, and the salt is efficiently leached and reduced, thereby efficiently improving the survival rate, save rate and growing speed of forests; the survival rate of forests reaches greater than 85%.
Owner:BEIJING ORIENT LANDSCAPE

Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land

ActiveCN105123008AIncrease carbon sequestrationEmission reductionSoil-working methodsLand improvementMicroorganism
A method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land relates to the saline land improvement method, and aims to solve the technical problems that an existing saline land cannot plant crops or the crops output is low; the method comprises the following steps: composting and fermenting an organic fertilizer so as to obtain decomposed organic fertilizer, uniformly mixing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer according to weight ratio: 1-12:1:10-20, and piling up the mixture for preparation; uniformly throwing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer mixing improvement material on the soil surface 0-2 days before soil working, and appilication amount is 1350kg / mu; doing intersect rotary tillage for 1-2 times after fertilizer application, rotary tillage depth is 12-15cm, immediately suppressing the soil after rotary tillage, and then sowing is carried out. The method is simple, modifiers are straw biochar and manure, the materials are easy to get, so cost is low; the improved saline land is obvious in effect; the method is suitable for saline land improvement.
Owner:上海孚祥生态环保科技股份有限公司

Alkaline land cotton pre-coating film seedling establishment method

InactiveCN101258809ASeedlings grow fastThe effect of increasing production is remarkablePlantingFertilising methodsComing outAlkali soil
The invention discloses a seedling formation method in alkaline lands by pre-coating film on cotton, which aims at increasing the seedling formation rate of the cotton in alkaline lands and realizing seedlings full and strong. The method of the invention is characterized in that: cotton fields having the salt content of below 0.4% and has certain accumulative rain and snow in winter are thawed in early spring, then ditches are opened in the rows of the pre-sowed cotton, and 2 tons of miscellaneous manure and 40 to 60kg of compound fertilizer which contains about 15 percent of N, about 15 percent of P2O5 and about 15 percent of K2O are fertilized, and then mulching film is used for covering the ditches immediately after the ditches are covered with soil and raked; as for an alkaline land with salt content of more than 0.4 percent, 80m<3> of fresh water is irrigated for each mu (mu: a Chinese unit of area, 1 / 15 of a hectare) at the end of winter to restrain salt content, ditches are opened and then miscellaneous manure and N-P-K compound fertilizer are fertilized in the early of middle of March, and film is covered after the land is prepared. The cotton fields which are leveled, fertilized and pre-coated with film are steadily passes earth temperature of 15 DEG C at the position of 5cm below the film, then bunch planting the ditinted and coated cotton seeds according to preset row spacing and plant spacing. The cottons are thinned out after the young seedling grow tidily, and final singling is carried out after two true leaves come out. The method of the invention achieves the functions of increasing temperature, water preserving and controlling salt by pre-coating the mulching film, promotes the seedling emergency and formation of cottons in alkaline land sand realizes synergetic salt control effect by concentrated fertilization under the film, thereby having significant yield increasing effect.
Owner:SHANDONG COTTON RES CENT

Wheat high yield cultivation technology in saline-alkali soil

The high-yield cultivation technique of wheat in saline-alkali field includes the following measures: selecting salt-resistant fall wheat species seed, using organic fertilizer as main fertilizer andusing microelement fertilizer for saline-alkali field crops as auxiliary fertilizer, selecting DEkang 961 as cultivatino species, before sowing, in tenth-twentieth of October, adopting wild flooding irrigation method, watering, salt-pressing and making moisture, after 3-5 days ploughing under to great depth and making land preparation, then film-covering and hole sowing with 1-3 days, after reviving in spring and when the first new leaf is grown and second new leaf is only produced spraying 20% mepiquat chloride paclobutrazol microemulsion on foliage.
Owner:SHANDONG NORMAL UNIV

High-yield cultivation method for honeysuckle on saline and alkaline land

InactiveCN103190266AImprove external environmental conditionsIncrease moistureHorticultureLand resourcesChlorogenic acid
The invention relates to a high-yield cultivation method for honeysuckle on saline and alkaline land. The method includes the key technical steps: selecting 'great mullein' breeds and two-year seedlings; selecting the saline and alkaline land with the salt content of 0.2%-0.3% and pH (potential of hydrogen) of 7.5-8.5; building a drainage system, plowing the land and excavating planting holes; applying 15kg of decayed farm manure and 250g of saline and alkaline land crop compound fertilizers as basic fertilizers in the holes; timely changing soil, planting the honeysuckle and covering black plastic films; reasonably performing pruning and topdressing; comprehensively preventing insect diseases; timely harvesting the honeysuckle; and the like. The honeysuckle is planted on a light saline and alkaline land parcel by the method, so that plants can normally grow and develop, saline and alkaline land resources are sufficiently used, the ecological environment of the saline and alkaline land can be improved, and the land can be improved step by step. Compared with a common planting method, the method has the advantages that the survival rate of the honeysuckle plants reaches 100%, the yield of five-year grown plant medicinal materials is increased by 86.3%, the content of chlorogenic acid and galuteolin is slightly improved and meets 2010 edition standard requirements of China Pharmacopeia, and the method is simple, practicable, easy to operate, remarkable in economic, ecological and social benefit and wide in popularization and application prospect.
Owner:张永清 +3

Saline-alkali soil modified microbial inoculum and preparation method thereof

The invention discloses a saline-alkali soil modified microbial inoculum and a preparation method thereof. The microbial inoculum comprises, by weight, 10-30 parts of bacillus megatherium HB bacteriapowder, 35-65 parts of phosphorus tailings powder, 12-18 parts of phosphogypsum, 8-25 parts of sugar refinery wastes, 6-26 parts of seaweed residue and 1-8 parts of mannitol. Components of the saline-alkali soil modified microbial inoculum have synergistic interactions with each other to enhance effects, if any one of the components lacks, expected effects cannot be reached, and only when the saline-alkali soil modified microbial inoculum with whole formulas is adopted and 30-80 kg of the microbial inoculum is used per mu, can the effects of increasing fertilizer utilization rate and crop yields, and improving quality and saline-alkali lands be achieved.
Owner:菏泽金正大生态工程有限公司 +2

Fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method

The invention discloses a fiber sticking strongly saline-alkali soil engineering improvement and ecological establishment method. A concealed conduit salt elimination system is laid underground fibersticking strongly saline-alkali soil, an open ditch drainage system is dug according to the pipeline running layout of the concealed conduit salt elimination system, a fiber sticking layer is broken by deep scarification, gypsum is applied, irrigation salt-leaching is performed after rotary tillage blending, suitable salt-tolerant plant types are determined according to irrigation water quality, and plants are planted by ridging. Concealed conduit drainage is combined with open ditch salt elimination, underground water level is controlled, soil salt elimination is accelerated, soil is improvedby the gypsum, salt-leaching efficiency is improved, and rapid engineering improvement of the fiber sticking strongly saline-alkali soil is realized.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI +1

Method for improving nutritive saline-alkali land soil

The invention discloses a method for improving nutritive saline-alkali land soil, and relates to the field of saline-alkali treatment. The method comprises the following steps of: 1, ploughing the soil; 2, applying stalks in a deep layer; and 3, covering sand on a surface layer. The method has the following advantages that: 1, the crop stalks are degraded to provide a great number of organic matters, improve soil structure and provide nutrient needed by plants; 2, the sand covers on the surface layer, and facilitates the flatness of the ground; 3, the stalks turned under the soil, together with the covered sand, can cut off capillaries of the soil, reduce water loss and inhibit salt return of the saline-alkali land soil; and 4, the method has low cost, can comprehensively improve the saline-alkali land soil in a large area, improve the growth quality of the plants in the saline-alkali land and protect and improve ecological environment, and has wide application prospect.
Owner:WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI

Furrow, film, ridge and straw combined type mulching cultivation method for crops

The invention belongs to field of agricultural cultivation techniques, and relates to a cultivation method for crops, in particular to a furrow, film, ridge and straw combined type mulching cultivation method for the crops. The method includes the steps of farmland selection, soil preparation, ditching, ridging, basal dressing, intercropping of plants among ridge surfaces according to specification layout, ridge surface straw mulching and furrow body film mulching after crop seeding, top dressing in the seedling stage and the fast-growing stage of the plants, and recovery of mulching film after harvest. The method overcomes shortcomings of straw mulching and film mulching, achieves sustainable production of the crops, reduces waste of agricultural resources and environmental pollution, improves rainfall infiltration, restrains soil evaporation, improves hydrothermal conditions of soil, improves the nutrient status of the plants due to nutrients provided by straw, protects cultivated land, prevents loss of water and fertilizer on the surface of the soil, improves yields of the crops, changes an existing mulching cultivation production method for the crops, and achieves the purpose of protective mulching cultivation.
Owner:INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI +1

Method for planting paeonia lactiflora in saline-alkali area

The invention discloses a method for planting paeonia lactiflora in a saline-alkali area, and relates to the technical field of planting of the paeonia lactiflora. The method comprises the following steps: (1) amelioration of saline-alkali land; (2) planting of auxiliary plants; (3) digging of planting holes; (4) seedling raising of seeds of the paeonia lactiflora; (5), transplanting; and (6), daily management. The method provided by the invention improves a survival rate and growth speed of planting of the paeonia lactiflora in the saline-alkali land, improves ornamental value and beautifiesthe environment.
Owner:HEFEI BAILYVSHENG AGRI TECH CO LTD

Novel method of salt-isolating cultivation improvement of saline-alkali soil through straw

The invention discloses a method of salt-isolating cultivation improvement of saline-alkali soil through straw and relates to the technical field of saline-alkali improvement. Rising channels of capillary water in high-salt soil is cut off through a straw salt-isolating filter layer, and salt washing is performed on the saline-alkali soil by using rainfall or irrigation water. Meanwhile, humus formed by the decomposition of straw and organic fertilizers is used for adsorbing salt ions, neutralizing the alkali of the soil and improving the soil microenvironment. The structure of the method comprises a straw salt-isolating filter layer which is laid on the upper part of the saline-alkali soil, an organic fertilizer layer at the upper part of the salt-isolating filter layer and a cultivationlayer at the uppermost part from bottom to top. Also, deep ditches are dug between two ridges, and isolation ditches are dug around improved areas. In the method, borrowed soil is not needed, washingand salt washing of the salt soil can be realized with the aid of natural rainfall and irrigation water after covering the straw isolating layer with soil on site, and the cost is reduced. The methodof improving saline-alkali soil is suitable for various saline-alkali soil environment conditions, is a high-efficiency and easy-to-operate method for saline-alkali soil improvement and horticulturalplant cultivation. In addition, the crop straw is used as the salt-isolating layer, so that the reuse of a large amount of straw can be realized to improve the organic matter of the soil, and meanwhile, the method is beneficial for solving the problem of straw burning, and reducing the environmental pollution.
Owner:NANJING AGRICULTURAL UNIVERSITY

Partial flow collecting, permeation enhancing and evaporation restraining saline land improvement system and method

ActiveCN103718686APromote growthFacilitate unidirectional downward transportSoil lifting machinesSoil-working methodsLand improvementPlant roots
The invention relates to a partial flow collecting, permeation enhancing and evaporation restraining saline land improvement system and method. The improvement system comprises a millstone type water collecting microtopography area and a plurality of first permeation enhancing pipes embedded below the millstone type water collecting microtopography area, wherein the millstone type water collecting microtopography area comprises a semi-arc-shaped mound arranged in a plant pit and used for plantation of plants, the semi-arc-shaped mound is at least partly exposed out of the ground, and an annular cofferdam is arranged on the periphery of the semi-arc-shaped mound. The upper ends of the first permeation enhancing pipes are communicated with the annular cofferdam, the lower ends of the first permeation enhancing pipes are embedded deep into the area, close to the plant root system, below the millstone type water collecting microtopography area, an isolation layer communicated with the lower ends of the first permeation enhancing pipes is further laid at the bottom of the plant pit, and hidden salt elimination pipes are laid in the isolation layer. According to the method, a good microtopography growth environment is overall provided for plants in a coastal saline-alkali land while water and nutrients required by plant growth are satisfied, and plant growth is promoted.
Owner:BEIJING ORIENT LANDSCAPE

North coastal region saline soil irrigation method and system in winter

The invention discloses a north coastal region saline soil irrigation method and system in winter. The north coastal region saline soil irrigation method in winter comprises the following steps of 1) digging a well; 2) pumping saline groundwater from the well and storing the pumped saline groundwater through a storage reservoir; 3) freezing the pumped saline groundwater in the step 2) into ice under the natural condition; 4) covering the frozen ice blocks in the step 3) on the surface of the soil to form into an ice coating irrigation layer; 5) pumping unfrozen saline water under the ice layer in the step 4) from the storage reservoir; 6) pumping the saline groundwater from the well and storing the saline groundwater into the storage reservoir when the natural condition changes and the ice coating irrigation layer starts melting; 7) repeating the step 2) to the step 6) and achieving north coastal region saline soil irrigation in winter. The north coastal region saline soil irrigation method in winter has the advantages of fully utilizing saline water sources, reducing exploitation of deep fresh groundwater and being benefited to reduction of the underground water level and restriction of accumulation of salt in the surface deep soil.
Owner:BEIJING NORMAL UNIVERSITY

Method for improving salt resistance of alfalfa

The invention relates to the technical field of saline-alkali soil development and utilization and provides a method for improving salt resistance of alfalfa. The method comprises the following specific steps: (1) planting alfalfa, namely A, selecting seeds; B, performing soil treatment; C, seeding; (2) performing cultivation management, namely A, applying glycine betaine solution to roots, preparing the glycine betaine solution into a concentration of 5mmol / L, and applying at the seedling stage according to an amount of 100kg per mu; B, performing irrigation and fertilization, and fertilizing and irrigating at the critical growing stage. According to the method disclosed by the invention, multiple salt controlling and inhibiting agronomic measures such as selection of salt-resistant varieties, deep cultivation, deep cultivation and turnover of straws, balanced fertilization and the like are taken together, the technology of applying the glycine betaine to the roots is combined, the salt resistance of the alfalfa is effectively improved, and the method is easy and convenient to operate, fast in efficacy, high in operability, low in cost and capable of effectively promoting alfalfa production increase in the saline-alkali soil.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Soil conditioner for regulating salinity and alkalinity and preparation method thereof

The invention discloses a soil conditioner for regulating salinity and alkalinity and a preparation method thereof. According to the technical scheme, the soil conditioner for adjusting the salinity and alkalinity is prepared from the following components in parts by weight: 100 to 150 parts of bamboo vinegar, 20 to 30 parts of amino acid compound liquid, 50 to 60 parts of plant fermented fertilizer, 10 to 20 parts of animal organic fertilizer, and 1 to 3 parts of biological agent. The bamboo vinegar extracted from the bamboo waste is used as a main raw material; and through cooperation with amino acid compound liquid, plant fermentation fertilizer, animal organic fertilizer and a biological agent, the permeability of the soil can be improved; the pH value and salinity of the soil are reduced, the release of organic matters in the soil is increased, the fertility is increased, meanwhile, the activity of magnesium ions, calcium ions and other ions in the soil is improved, and the absorption and utilization rate of plants on nutrient substances in the soil is increased.
Owner:正大农业有限公司

Method for improving soil fertility of saline-alkali soil by planting sesbania

The invention is suitable for the technical field of saline-alkali soil improvement, and provides a method for improving the soil fertility of saline-alkali soil by planting sesbania. The method is characterized by comprising the steps of deep ploughing, irrigation and salt separation, wherein soil turning is carried out, weeds of the saline-alkali soil are removed, a compact soil layer is formedbelow the earth surface, and underground water high in salt content is prevented from moving upwards; sowing and fertilizing, wherein seeds need to be soaked or sand is added for wiping the seeds before sesbania sowing, a single sowing mode is used, phosphorus fertilizer is applied, the yield of sesbania is increased, and the content of nitrogen and phosphorus in sesbania is increased; harvestingand fertilizer retention, wherein after the sesbania is ripe, direct ploughing is conducted, straw and livestock manure can be heaped and applied to serve as base fertilizer or conduct topdressing, stalks need to be cut off, chopped and completely buried in the soil layer to prevent moisture evaporation, after sesbania is turned, the total quantity of water-stable aggregates of soil is increased,the soil volume weight is reduced, the porosity is improved, and the soil can be prevented against salt return. Therefore, the fertility of the saline-alkali soil can be improved, and conditions of the saline-alkali soil for planting crops are improved.
Owner:SHANDONG SHENGJING TOURISM DEV CO LTD

Method for improving germination rate of corns sowed in coastal beach saline-alkaline land

InactiveCN107155626AReduce the ability of salt to accumulate on the surfaceWeaken the ability of upward surface aggregationHorticultureSoil-working methodsEvaporationScarification
The invention discloses a method for improving the germination rate of corns sowed in coastal beach saline-alkaline land and relates to the technical field of agricultural planting and cultivation. The method comprises the steps of deep scarification and rotary tillage of land, enough base fertilizer application, furrowing and ridging, sowing and water-retaining agent adding, herbicide spray application and mulching film coverage, and seedling emergence and final-period management. 'Low-salt belts' are formed in a sowing zone through certain improvement of soil fertility and by integrating mulching film temperature rise and salt decrease, ridging for salt absorption, water-retaining agent adding, water retaining, fertilizer maintenance, soil moisture increase and moisture evaporation decrease, and accordingly it is achieved that the germination rate of the corns sowed in the coastal beach saline-alkaline land is improved. The problems of low germination rate of corns and difficult seedling protection in coastal beach saline-alkaline land are solved, complete and strong feed corn seedlings in the saline-alkaline land are achieved, and the method is economic, simple, effective, strong in operability and suitable for popularization.
Owner:JIANGSU COASTAL AREA AGRI SCI RES INST

Ecological slope protection method for protecting side slope of silty soil ditch by using grass mat

InactiveCN102561265AReduce evaporation between soil particlesInhibit salt returnCoastlines protectionAlkali soilDitch
The invention provides an ecological slope protection method for protecting a side slope of silty soil ditch by using a grass mat, belonging to the technical field of side slope protection and ecological slope protection of saline-alkali soil improved regions. The method comprises a grass mat layer part and a grass plant slope protection part. The method comprises the steps of: (1) flattening the slope surface; (2) spreading the grass seeds; (3) paving a grass mat; and (4) fixing the grass mat with wood nails. In the method, the grass seeds are spread only above the normal water level so as to meet the requirement of the discharge capacity below normal water level on the side slope roughness. Moreover, in the method, the grass mat is required to be tiled upwards to the slope top from the position 20cm below the normal water level so as to reduce the scouring damage of the side slope around the normal waterline caused by the water level fluctuation. Through the invention, on the whole, the soil layer is protected relatively well to realize the anti-scouring function on one hand; and on the other hand, the evaporation of soil particles can be greatly reduced; thus in the region with relatively low mineralization degree, a water and moisture holding function is realized; and in the region with relatively high mineralization degree, inhibition on salt accumulation is facilitated. The method can be used as an effective measure for improving the saline-alkali soil.
Owner:HOHAI UNIV

Method for controlling salt and saving water of nutritional soil for planting crops on mudflat saline-alkali land

The invention discloses a method for controlling salt and saving water of nutritional soil for planting crops on a mudflat saline-alkali land. The method comprises the following steps of: determining a salt control target value according to a salt-tolerance threshold of planted crops; restraining salt content and making moisture by irrigating soil moisture water into the mudflat saline-alkali land; performing deep plowing and deep tillage after the soil is dry; paving crushed crop straws under the surface of the soil; seeding after leveling the land; and finally returning the crop straws intothe land for covering a sown land surface. Due to the adoption of the technical scheme, water resource is saved; and the irrigation amount can be reduced in the growth and development stages of the crops. When the soil moisture water is irrigated before sowing, because a four-electrode salt content sensor is adopted for monitoring a desalting process of the soil in real time, an irrigation salt control target and irrigation stop time are defined, and water resource loss is reduced; simultaneously, the straws are buried deeply and covered on the land surface, continuous damage caused by a capillary action is caused; an uplink surface congregation effect of the salt content in subsoil and underground water is prevented; soil salt return is inhibited effectively without irrigating for washing the salt in a dry season so that the water resource is saved; in addition, water loss is reduced because of the coverage on the surface of the land, the moisture keeping effect of the soil is improved and the irrigation amount in the growth and development stage of the crops can be reduced.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Isolation layer and preparation method thereof for prolonging service lifetime of earth soil

The invention provides an isolation layer and a preparation method thereof for prolonging service lifetime of earth soil. The isolation layer is composed of a micro-organic material layer, a straw leaf-littering layer, a peat pond mud layer, a thin sand layer and a gypsum layer. The laying method comprises following steps: eliminating topsoil soil with severe salt damage at 0-40 cm, and laying the gypsum layer, the thin sand layer, the peat pond mud layer, the straw leaf-littering layer and the micro-organic material layer. The isolation layer and the preparation method thereof for prolonging service lifetime of earth soil have following beneficial effects: the isolation layer is used for integrating microbial technology, chemical technology and physical technology for restoration of salt-affected soil so that physical properties of topsoil soil are improved; salt return of deep soil is inhibited and service lifetime of earth soil is prolonged.
Owner:FUJIAN AGRI & FORESTRY UNIV

Method for promoting salt leaching of saline alkali soil

The invention discloses a method for promoting salt leaching of saline alkali soil. The invention provides a soil improvement product which is prepared by a method comprising the following steps: (1)inoculating bacillus mucilaginosus into a fermentation medium for culturing to obtain bacillus mucilaginosus fermentation liquor; (2) composting, and thoroughly decomposing the garden waste to obtaingarden waste compost; and (3) mixing the garden waste compost, bentonite and the bacillus mucilaginosus fermentation liquor in proportion to obtain the soil improvement product. The soil improvement product provided by the invention is combined with the method for promoting salt leaching of saline alkali soil, the soil fertility and the soil physical structure are improved, irrigation and salt washing are facilitated, and earth surface salt return is inhibited.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI

Coast saline-alkali soil forestation method

ActiveCN101322470BSolve the problem of insufficient fresh water resources for afforestationSmooth infiltrationClimate change adaptationWatering devicesAlkali soilIsolation layer
The invention discloses a coastal kaline soil forestation method, comprising the following steps: A. trenching and building ridges, and building rain collection beds; B. setting rain collection surfaces; C. digging plant pits, and setting salt isolation layers; D. collecting tree species and planting; E. setting surface cover layers of plant pits; F. tending, and weeding at proper time; wherein, the step of trenching and building ridges, and building rain collection beds is based on the design of forestation spacing, and flow collection trenches are dug at interval of a row spacing along the direction of rows; the depth of the trench bottom is 20cm to 25cm; the ground surface between the ridge and the trench bottom is trimmed to form a shallow v-shaped groove; the sloping surfaces are leveled and compacted to form the rain collection beds. The coastal moderate kaline soil forestation technology of the invention greatly increases the water content of soil, and the salt is efficiently leached and reduced, thereby efficiently improving the survival rate, save rate and growing speed of forests; the survival rate of forests reaches greater than 85%.
Owner:BEIJING ORIENT LANDSCAPE

Saline-alkali land soil conditioner based on coal-fired flue gas desulfurization gypsum and biogas waste and preparation method of saline-alkali land soil conditioner

InactiveCN107628905ASubstitutional sodium reductionImprove buffering effectFertilizer mixturesNutrientHumic acid
The invention discloses a saline-alkali land soil conditioner based on coal-fired flue gas desulfurization gypsum and biogas waste. The soil conditioner is prepared from components in parts by weightas follows: 20-40 parts of the coal-fired flue gas desulfurization gypsum, 40-80 parts of biogas residues, 10-20 parts of plant straw powder and 2-4 parts of potassium sulfate compound fertilizer. Ca<2+> and Mg<2+> in the coal-fired flue gas desulfurization gypsum replace total exchangeable sodium in the saline-alkali land, so that the content of the exchangeable sodium in the saline-alkali land is reduced; the biogas residues contain rich organic matter, humic acid, amino acid, nitrogen, phosphorus, potassium and microelements, and besides, the biogas residues serve as a binder of the conditioner; the plant straw powder is decomposed and converted by microorganisms into humus, the soil alkalinity is reduced, and the salt tolerance is improved; potassium sulfate compound fertilizer increases nutrients in soil and improve the salt tolerance of crops. The main raw materials of the soil conditioner are from industrial and agricultural wastes, the soil conditioner can be industrialized andconvenient to apply, and the conditioning efficiency of the saline-alkali land is improved.
Owner:WEIFANG YOURONG IND

Salinized soil composite restoration method effectively inhibiting salinization

InactiveCN105940806AInhibit soil return to saltImproved physical propertiesOrganic fertilisersSoil-working methodsFertilizerEdaphic
The invention discloses a salinized soil composite restoration method effectively inhibiting salinization; the method comprises the following steps; soil excavation, laying an isolation layer, plowing soil, applying organic-inorganic composite fertilizer, irrigating and leaching, and covering straws; the salinized soil composite restoration method combines salinized soil physics, chemical and biological methods, uses the isolation layer to prevent deep salinity from transferring to the plowing layer, uses the straw coverage to reduce plowing layer soil surface evaporation, and applies desulfurized gypsum, biological modifier and organic-inorganic composite fertilizer to improve the salinized soil characteristics, thus effectively preventing soil salinization, and improving physics property of the plowing soil layer.
Owner:FUJIAN AGRI & FORESTRY UNIV

Method and application for rapidly developing natural biological membrane of beach reclamation soil

It is a major nation strategic plan for the development of the agriculture after the coastal reclamation of tidal flats, however, the soil of the newly reclaimed tidal flat is featured by high salinity and low nutrient, which seriously limits the process of agricultural development in the tidal flats. The invention relates to a method and application for rapidly developing natural biological membrane of beach reclamation soil, in particular to a method and a material for rapidly and extensively developing natural biological membrane of the soil surface of the coastal beach seriously salty and in situ. The natural biological membrane is enriched by inoculating prepared natural soil suspension and the soil in situ, and the soil natural biological membrane is accelerated and expanded by some technical methods, which can effectively control soil salinization, enhance soil nutrient content and improve beach soil, so as to provide a strong guarantee for the sustainable development of coastal beach agriculture.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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