WO2010058425A2 - Conditionneur de sol - Google Patents

Conditionneur de sol Download PDF

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Publication number
WO2010058425A2
WO2010058425A2 PCT/IN2009/000669 IN2009000669W WO2010058425A2 WO 2010058425 A2 WO2010058425 A2 WO 2010058425A2 IN 2009000669 W IN2009000669 W IN 2009000669W WO 2010058425 A2 WO2010058425 A2 WO 2010058425A2
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composition
mass
soil conditioner
amount
group
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PCT/IN2009/000669
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English (en)
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WO2010058425A3 (fr
Inventor
Chetan Navnithlal Shah
Prashant Kumar Pandey
Moushumi Borah
Vijay Sivaji Ghangale
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Chetan Navnithlal Shah
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Publication of WO2010058425A2 publication Critical patent/WO2010058425A2/fr
Publication of WO2010058425A3 publication Critical patent/WO2010058425A3/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products

Definitions

  • the present invention relates to soil conditioner.
  • a soil conditioner also called a soil amendment, is a material added to soil to improve plant growth and health.
  • the type of conditioner added depends on the current soil composition, climate and the type of plant. Some soils lack nutrients necessary for proper plant growth and others hold too much or too little water.
  • a conditioner or a combination of conditioners corrects the soil's deficiencies.
  • Lime is used to make soil less acidic, as is lime-containing crushed stone.
  • Fertilizers such as peat, manure, anaerobic digestate or compost add depleted plant nutrients. Materials such as clay, vermiculite, hydrogel, and shredded bark make soil to hold more water. Gypsum releases nutrients and improves soil structure.
  • a soil inoculant is added for legumes. Unless clay is incorporated into a healthy crumb structure, water may bond to it too strongly to be available to plant roots.
  • Phosphorus is necessary for seed germination, photosynthesis, protein formation and almost all aspects of growth and metabolism in plants. It is essential for flower and fruit formation.
  • Potassium is necessary for formation of sugars, starches, carbohydrates, protein synthesis and cell division in roots and other parts of the plant. It helps to adjust water balance, improves stem rigidity and cold hardiness, enhances flavor and color on fruit and vegetable crops, increases the oil content of fruits and is important for leafy crops. Deficiencies result in low yields, mottled, spotted or curled leaves, scorched or burned look to leaves.
  • Sulfur is a structural component of amino acids, proteins, vitamins and enzymes and is essential to produce chlorophyll. It imparts flavor to many vegetables. Deficiencies show as light green leaves.
  • Magnesium is a critical structural component of the chlorophyll molecule and is necessary for functioning of plant enzymes to produce carbohydrates, sugars and fats. It is used for fruit and nut formation and essential for germination of seeds. Deficient plants appear chlorotic, show yellowing between veins of older leaves; leaves may droop.
  • Calcium activates enzymes is a structural component of cell walls, influences water movement in cells and is necessary for cell growth and division. Some plants must have calcium to take up nitrogen and other minerals. Deficiency causes stunting of new growth in stems, flowers and roots. Symptoms range from distorted new growth to black spots on leaves and fruit. Yellow leaf margins may also appear.
  • Iron is necessary for many enzyme functions and as a catalyst for the synthesis of chlorophyll. It is essential for the young growing parts of plants. Deficiencies induce pale coloration of young leaves followed by yellowing of leaves and large veins.
  • Zinc is necessary for cell wall formation, membrane integrity, calcium uptake and may aid in the translocation of sugars. Boron affects at least 16 functions in plants. These functions include flowering, pollen germination, fruiting, cell division, water relationships and the movement of hormones. Deficiencies kill terminal buds leaving a rosette effect on the plant. Leaves are thick, curled and brittle. Fruits, tubers and roots are discolored, cracked and flecked with brown spots. Zinc is a component of enzymes or a functional cofactor of a large number of enzymes including auxins (plant growth hormones). It is essential to carbohydrate metabolism, protein synthesis and internodal elongation (stem growth). Deficient plants have mottled leaves with irregular chlorotic areas. Zinc deficiency leads to iron deficiency causing similar symptoms.
  • Copper is concentrated in roots of plants and plays a part in nitrogen metabolism. It is a component of several enzymes and may be part of the enzyme systems that use carbohydrates and proteins. Deficiencies cause die back of the shoot tips, and terminal leaves develop brown spots.
  • Molybdenum is a structural component of the enzyme that reduces nitrates to ammonia. Without it, the synthesis of proteins is blocked and plant growth ceases. Root nodule (nitrogen fixing) bacteria also require it. Seeds may not form completely, and nitrogen deficiency may occur if plants are lacking molybdenum. Deficiency signs are pale green leaves with rolled or cupped margins.
  • Cobalt is required for nitrogen fixation in legumes and in root nodules of nonlegumes.
  • the demand for cobalt is much higher for nitrogen fixation than for ammonium nutrition. Deficient levels could result in nitrogen deficiency symptoms.
  • Montmorillonite is a very soft phyllosilicate (clay mineral). It typically forms microscopic or at least very small platy micaceous crystals. Chemically it is hydrated sodium calcium aluminium magnesium silicate hydroxide with formula
  • montmorillonite (Na 5 Ca) O j 3 (Al 5 Mg) 2 (Si 4 O 1O )(OH) 2 -HH 2 O.
  • the water content of montmorillonite is variable. When water is absorbed by the crystals they tend to swell to several times of their original volume. This makes montmorillonite a useful mineral for several purposes. It is the main constituent in a volcanic ash called bentonite, which is used in drilling mud. The effect of the montmorillonite is to slow the progress of water through the soil. This is important for farmers in extended dry periods.
  • Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO 3 ).
  • the other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite at 470°C, and vaterite is even less stable.
  • Calcite like most carbonates, will dissolve with most forms of acid. Calcite can be either dissolved by groundwater or precipitated by groundwater, depending on several factors including the water temperature, pH, and dissolved ion concentrations, calcite is fairly insoluble in cold water, however dissolution occurs with release of carbon dioxide gas. Calcite exhibits an unusual characteristic called retrograde solubility in which it becomes less soluble in water as the temperature increases.
  • Attapulgite is a kind of crystalloid hydrous magnesium-aluminum silicate mineral with formula (Mg,Al)2Si 4 O 10 (OH)-4(H 2 O) which occurs in a type of clay soil. Attapulgite has very good colloidal properties such as: specific features in dispersion, high temperature endurance, salt and alkali resistance, and also high adsorbing and de-coloring capabilities. Attapulgite clays are a composite of smectite and palygorskite. Smectites are expanding lattice clays of which bentonite is a commonly known generic name for smectite clays.
  • the palygorskite component is an acicular bristle-like crystalline form which does not swell or expand. Attapulgite forms gel structures in fresh and salt water by establishing a lattice structure of particles connected through hydrogen bonds. Attapulgite, unlike bentonite, form gel structures in salt water and is used in special salt water drilling mud for drilling formations contaminated with salt.
  • Sepiolite is a naturally occurring clay mineral of sedimentary origin. It is a non swelling, lightweight, porous clay with a large specific surface area. Chemically, sepiolite is a hydrous magnesium silicate whose individual particles have a needle-like morphology. The high surface area and porosity of this clay account for its outstanding absorption capacity for liquids. Sepiolite granules do not disintegrate even when saturated with liquids. Sepiolite- based rheological additives provide viscous fluids with thixotropic behaviour when they are dispersed in water or other liquid systems. Sepiolite suspensions are stable even in systems with high salt content (high ionic strength) unlike suspensions of other clays, such as bentonite.
  • Bauxite is the most important aluminium ore. It consists largely of the minerals gibbsite Al(OH) 3 , boehmite ⁇ -AlO(OH), and diaspore ⁇ -AlO(OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO 2 .
  • Borax also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid. It is usually a white powder consisting of soft colorless crystals that dissolve easily in water. It has a wide variety of uses. It is a component of many detergents, cosmetics, and enamel glazes. It is also used to make buffer solutions in biochemistry, as a fire retardant, as an anti-fungal compound for fiberglass, as an insecticide, as a flux in metallurgy, and as a precursor for other boron compounds.
  • Gypsum is a very soft mineral composed of calcium sulfate dihydrate with the chemical formula CaSO 4 -IH 2 O. Gypsum occurs in nature as flattened and often twinned crystals and transparent cleavable masses called selenite. It is used as Fertilizer and soil conditioner. Gypsum is also known as amending agent for sodic soils. It recovers abused soil systems by exchanging the Na-soils to more porous Ca -soils. However, such process gives rise to accumulation of replaced soluble sodium salts which needs to be washed off. Still it is a good source of Ca and Sulphur and optimizing its addition may help in avoiding excess salt build up.
  • US Patent No.5125950 discloses a soil conditioner comprising a mixture of a soil compatible electrolyte such as sodium acetate and an invert sugar having a degree of inversion of about 55% to about 75% in a ratio, by weight, of 20:1 to 1 :10.
  • US Patent No.6752850 discloses a liquid soil conditioning composition
  • a liquid soil conditioning composition comprising an aqueous dispersion of calcium carbonate and sulfur.
  • the calcium and sulfur being in an effective amount in the aqueous dispersion to form calcium sulfate, in situ, in the soil structure, wherein the atomic ratio of calcium to sulfur is in the range of 0.5:1 to 2.0:1.
  • US Patent No. 5779789 discloses a soil conditioner having a pellet-shape and comprising at least 50% silica by weight and at least 20% alumina by weight; and having a porosity of at least 40% by volume.
  • the soil conditioner further contains 2-3.3% CaO, 2.9-3.4% MgO and 7-9% FeO by weight.
  • US Patent No. 5578121 discloses a freely fiowable, soil conditioner consisting of a granular perlite with a coating on the externally accessible surface of the perlite grains of unfired clay.
  • US 20030041639 discloses a soil conditioner comprising a soil-tolerant electrolyte and sugar, characterised in that the soil conditioner is a mixture of a first aqueous solution comprising sodium hydroxide, acetic acid and 1,2,3-propanetriol produced under constant stirring and a second aqueous solution comprising saccharose, acetic acid and potassium hydrogen tartrate produced under constant stirring.
  • US20040089042 discloses a potting soil and topsoil conditioning composition
  • a potting soil and topsoil conditioning composition comprising at least about 50 percent by volume of an organic compost; at least about 5 percent by volume of a sandy loam; at least about 5 percent by volume of a diatomaceous earth component, said component containing diatomaceous earth, Phosphate, Magnesium, Potassium and Nitrogen; and at least about 1 percent by volume of Perlite in proportions to provide good plant nutrition, moisture retention, moisture drainage and infection and insect resistance properties.
  • the composition further comprising selenium, sulfur, iron, calcium, copper and zinc.
  • the soil conditioner compositions disclosed in the prior art do not provide effective nutrients and minerals which are needed for the proper growth of plants as well as for improving yield of the plant product. Since the deficiency of any of the nutrients essential for plants leads to improper growth and several diseases in plants, a proper soil conditioner which caters the nutritional needs of the plants is the need of the hour.
  • the instant invention discloses a soil conditioner which is highly beneficial for the plants.
  • a soil conditioner composition comprising: a. Montmorillonite in an amount of about 65 to about 85 % of the mass of the composition; b. Gypsum in an amount of about 1 to about 3 % of the mass of the composition c. Attapulgite in an amount of about 10 to about 30 % of the mass of the composition; d. Sepiolite in an amount of about 1 to about 2 % of the mass of the composition;
  • Bauxite residue in an amount of about 0.5 to about 0.8 % of the mass of the composition
  • j. Zinc in an amount of about 0.25 to about 0.5% of the mass of the composition
  • the composition further comprising at least one additive selected from a group consisting of selenium, molybdenum, cerium, sulfur and cobalt.
  • the carrier is selected from a group consisting of directly sprayable solution, powders, suspensions, dispersions, emulsions, oil dispersions, pastes and water dispersible granules.
  • the carrier is water dispersible granules.
  • the water dispersible granules comprise at least one excipient selected from a group consisting of dispersing agent, wetting agent, binding agent, defoamer, stabilizer and vehicle.
  • the dispersing agent is selected from a group consisting of polyvinylpyrrolidone, polyvinylalcohol, lignosulphonates, phenyl naphthalene sulphonates, ethoxylated allcyl phenols, ethoxylated fatty acids, alkoxylated linear alcohols, polyaromatic sulfonates, sodium alkyl aryl sulfonates, glyceryl esters and maleic anhydride copolymers.
  • the wetting agent is selected from a group consisting of phenyl naphthalene sulphonates, alkyl naphthalene sulfonates, sodium alkyl naphthalene sulfonate, sodium salt of sulfonated alkylcarboxylate, polyoxyalkylated ethyl phenols, polyoxyethoylated fatty alcohols, polyoxyethoxylated fatty amines, lignin derivatives, alkane sulfonates, alkylbenzene sulfonates, salts of polycarboxylic acids, salts of esters of sulfosuccinic acid, alkylnaphthalenesulphonates, alkylbenzenesulfonates, alkylpolyglycol ether sulfonates, alkyl ether phosphates, alkyl ether sulphates and alkyl sulfosuccinic mono
  • the binding agent is selected from a group consisting of starch, pregelatinized starch, gelatin, vinyl chloride, povidone, hydroxyl propyl cellulose, ethyl cellulose, xanthan gum, cellulose acetate phthalate, hydroxyl propyl methyl cellulos, polyvinyl alcohols, phenyl naphthalene sulphonate, lignin derivatives, polyvinyl pyrrolidone, polyalkylpyrrolidone, polyethoxylated fatty acids, polyethoxylated fatty alcohols, ethylene oxide copolymer, propylene oxide copolymer, polyethylene glycols and polyethylene oxides.
  • the water dispersible granules are in a size range of about 0.1 mm to about 10 mm.
  • the dryer is selected from a group consisting of spray dryer, tray dryer and fluidized bed dryer.
  • Fig. 1 illustrates plants cultivated in plain soil [Control I].
  • Fig. 2 illustrates plants cultivated with commonly used manure, fertilizer [Control 2].
  • Fig. 3 illustrates plants cultivated with 15 g of sample A per plant [T 4 ].
  • Fig. 4 illustrates plants cultivated with 1O g of sample A per plant [T 5 ].
  • Fig. 5 illustrates plants cultivated with 15 g of sample A per plant [T 4A ].
  • Fig. 6 illustrates plants cultivated with 1O g of sample A per plant [T 5A ].
  • Fig. 7 illustrates plants cultivated with 10 gm of sample A per plant [T 9A ].
  • a soil conditioner composition comprising: a. Montmorillonite in an amount of about 65 to about 85 % of the mass of the composition; b. Gypsum in an amount of about 1 to about 3 % of the mass of the composition c. Attapulgite in an amount of about 10 to about 30 % of the mass of the composition;
  • Bauxite residue in an amount of about 0.5 to about 0.8 % of the mass of the composition
  • g. Iron in an amount of about 0.5 to about 1% of the mass of the composition
  • h. Manganese in an amount of about 0.5 to about 1% of the mass of the composition
  • i. Copper in an amount of about 0.25 to about 0.5 % of the mass of the composition
  • j Zinc in an amount of about 0.25 to about 0.5% of the mass of the composition
  • a soil conditioner composition of the present invention further comprising at least one additive selected from a group consisting of selenium, molybdenum, cerium, sulfur and cobalt.
  • the carrier used in accordance with the present invention is selected from a group consisting of directly sprayable solution, powders, suspensions, dispersions, emulsions, oil dispersions, pastes and water dispersible granules.
  • the carrier is powder. In accordance with another embodiment of the present invention the carrier is water dispersible granules.
  • the water dispersible granules comprise at least one excipient selected from a group consisting of dispersing agent, wetting agent, binding agent, defoamer, stabilizer and vehicle.
  • the dispersing agent is selected from a group consisting of polyvinylpyrrolidone, polyvinylalcohol, lignosulphonates, phenyl naphthalene sulphonates, ethoxylated allcyl phenols, ethoxylated fatty acids, alkoxylated linear alcohols, polyaromatic sulfonates, sodium alkyl aryl sulfonates, glyceryl esters and maleic anhydride copolymers.
  • the wetting agent is selected from a group consisting of phenyl naphthalene sulphonates, alkyl naphthalene sulfonates, sodium alkyl naphthalene sulfonate, sodium salt of sulfonated alkylcarboxylate, polyoxyalkylated ethyl phenols, polyoxyethoylated fatty alcohols, polyoxyethoxylated fatty amines, lignin derivatives, alkane sulfonates, alkylbenzene sulfonates, salts of polycarboxylic acids, salts of esters of sulfosuccinic acid, alkylnaphthalenesulphonates, alkylbenzenesulfonates, alkylpolyglycol ether sulfonates, alkyl ether phosphates, alkyl ether sulphates and alkyl sulfosuccinic monoesters
  • the binding agent is selected from a group consisting of starch, pregelatinized starch, gelatin, vinyl chloride, povidone, hydroxyl propyl cellulose, ethyl cellulose, xanthan gum, cellulose acetate phthalate, hydroxyl propyl methyl cellulos, polyvinyl alcohols, phenyl naphthalene sulphonate, lignin derivatives, polyvinyl pyrrolidone, polyalkylpyrrolidone, polyethoxylated fatty acids, polyethoxylated fatty alcohols, ethylene oxide copolymer, propylene oxide copolymer, polyethylene glycols and polyethylene oxides.
  • the water dispersible granules prepared in accordance with the present invention are in a size range of about 0.1 mm to about 10 mm.
  • a process for the preparation of a soil conditioner comprising the following steps a. mixing predetermined quantities of Montmorillonite, Attapulgite, Sepiolite, Bauxite, Iron, Manganese, Copper, Zinc, wetting agent, dispersing agent, defoamer and water in a homogenizer to obtain a homogenized mixture;
  • the dryer used for drying process is selected from a group consisting of spray dryer, tray dryer and fluidized bed dryer.
  • the soil conditioner formulation prepared in accordance with this invention can be used for a wide variety of fruits, vegetables like tomato, cabbage, etc. and various other plants including legumes like ground nuts.
  • the soil conditioner formulation can be mixed with a plurality of substances like manure, vermicompost, organic fertilizer, oil cakes including neem oil cake, cocopeat and the like.
  • sample A is the soil conditioner formulation prepared in accordance with this invention.
  • the inventors of the present application found that the amount of active ingredients present in the soil conditioner composition plays important role in increasing cation exchange capacity of the soil, improving moisture or water holding capacity, improving soil fertility, slow release of nutrients and optimizing the pH for releasing the nutrients.
  • Attapulgite used in the composition improves water-holding capacity of the soil and it also provides Ca and magnesium while Bauxite residue provides iron supplement to the plant.
  • sample A is the soil conditioner formulation prepared in accordance with this invention.
  • Konkan Tapora variety of Groundnuts were planted in the month of December, 2007 in three different plots of about 5 m. x 4.5 m., with a spacing of about 30 cm. x 10 cm. at Agricultural Research Station, Shirgaon, Ratnagiri, 415 629, (M.S.) India.
  • the layout chosen for the trial was Randomised Block Design (R.B.D.). Each plot varied in the type of treatment provided to the plants.
  • the plants were cultivated in plain soil, i.e, without any external additives which serve as Control 1 and is depicted as treatment Tl .
  • the plants were cultivated with varying quantities of the soil conditioner (sample A) prepared in accordance with this invention, alone as well as with a combination of varying quantities of sample A and manure, as described in the following:
  • Plants were cultivated with 20 g of sample A per plant, depicted as treatment T 3 .
  • Plants were cultivated with 15 g of sample A per plant, depicted as treatment T 4 .
  • Plants were cultivated with 1O g of sample A per plant depicted as treatment T 5 .
  • Plants were cultivated with 5 g of sample A per plant, depicted as treatment T 6 .
  • Plants were cultivated with 20 g of sample A per plant with manure, depicted as treatment T 7 .
  • Plants were cultivated with 15 g of sample A per plant with manure, depicted as treatment T 8 .
  • Plants were cultivated with 10 g of sample A per plant with manure depicted as treatment T 9 .
  • Plants were cultivated with 5 g of sample A per plant with manure, depicted as treatment T 10 .
  • Konkan Tapora variety of Groundnuts were planted in the month of August, 2008 in three different plots of about 5 m. x 4.5 m., with a spacing of about 30 cm. x 10 cm. at Agricultural Research Station, Shirgaon, Ratnagiri, 415 629, (M.S.) India.
  • the layout chosen for the trial was Randomised Block Design (R.B.D.). Each plot varied in the type of treatment provided to the plants.
  • the plants were cultivated in plain soil, i.e, without any external additives which serves as Control IA and is depicted as treatment TlA.
  • the plants were cultivated with commonly used manure, fertilizer which serves as Control 2A and is depicted as treatment T2A.
  • the plants were cultivated with varying quantities of the soil conditioner (sample A) prepared in accordance with this invention, alone as well as with a combination of varying quantities of sample A and manure, as described in the following:
  • Plants were cultivated with 20 g of sample A per plant, depicted as treatment T 3A - Plants were cultivated with 15 g of sample A per plant, depicted as treatment T 4A - Plants were cultivated with 10 g of sample A per plant depicted as treatment T 5A - Plants were cultivated with 5 g of sample A per plant, depicted as treatment T 6A -
  • Plants were cultivated with 20 g of sample A per plant with manure, depicted as treatment T 7A .
  • Plants were cultivated with 15 g of sample A per plant with manure, depicted as treatment
  • Plants were cultivated with 10 g of sample A per plant with manure depicted as treatment
  • Plants were cultivated with 5 g of sample A per plant with manure, depicted as treatment

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Fertilizers (AREA)

Abstract

La présente invention concerne une composition de conditionneur de sol, ladite composition comprenant de la montmorillonite en proportion d'environ 65 à environ 85 % en masse de la composition; du gypse en proportion d'environ 1 à environ 3 % en masse de la composition; de l'attapulgite en proportion d'environ 10 à environ 30 % en masse de la composition; de la sépiolite en proportion d'environ 1 à environ 2 % en masse de la composition; un résidu de bauxite en proportion d'environ 0,5 à environ 0,8 % en masse de la composition; un polyacrylate en proportion d'environ 0,01 à environ 0,05 % en masse de la composition; du fer en proportion d'environ 0,5 à environ 1 % en masse de la composition; du manganèse en proportion d'environ 0,5 à environ 1 % en masse de la composition; du cuivre en proportion d'environ 0,25 à environ 0,5 % en masse de la composition; et du zinc en proportion d'environ 0,25 à environ 0,5 % en masse de la composition.
PCT/IN2009/000669 2008-11-20 2009-11-20 Conditionneur de sol WO2010058425A2 (fr)

Applications Claiming Priority (2)

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IN2454/MUM/2008 2008-11-20
IN2454MU2008 2008-11-20

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CN102352254A (zh) * 2011-08-22 2012-02-15 中国农业科学院农业环境与可持续发展研究所 一种红壤改良剂
FR2975693A1 (fr) * 2011-05-23 2012-11-30 Jean Pierre Jacquinet Structurants physico-chimiques et regenerateurs biologiques des sols et/ou des supports de culture peu reactifs
CN103299744A (zh) * 2013-05-23 2013-09-18 北京林业大学 一种控制种子萌发的包衣剂、包衣种子及其制备方法
CN104086313A (zh) * 2014-07-22 2014-10-08 甘肃西部凹凸棒石应用研究院 一种无机-有机营养型土壤改良剂及其制备方法
WO2015097486A1 (fr) * 2013-12-23 2015-07-02 Invention Center Kft. Composition de stabilisation des sols contenant de l'oxyde de fer (iii)
WO2015173396A1 (fr) * 2014-05-16 2015-11-19 Sachtleben Pigment Gmbh Engrais à base de soufre
CN106233846A (zh) * 2016-07-27 2016-12-21 博白县那林镇东良番石榴种植专业合作社 一种种植珍珠番石榴保水的方法
CN106233854A (zh) * 2016-07-29 2016-12-21 博白县那林镇东良番石榴种植专业合作社 一种种植珍珠番石榴保水的方法
CN109233863A (zh) * 2018-11-13 2019-01-18 江苏省农业科学院 利用秸秆的盐碱型土壤改良剂及其用途
CN110357747A (zh) * 2019-08-23 2019-10-22 湖北都兴隆农业技术有限公司 一种含海泡石的土壤调理剂及其制作方法
CN111808613B (zh) * 2020-08-20 2021-04-06 临泽县鼎丰源凹土高新技术开发有限公司 低品位凹凸棒石作为有机农业酸性土壤镁调理剂的应用

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US20050175577A1 (en) * 2004-02-06 2005-08-11 The Clorox Company Absorbent composition with improved odor control
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975693A1 (fr) * 2011-05-23 2012-11-30 Jean Pierre Jacquinet Structurants physico-chimiques et regenerateurs biologiques des sols et/ou des supports de culture peu reactifs
CN102352254B (zh) * 2011-08-22 2014-03-12 中国农业科学院农业环境与可持续发展研究所 一种红壤改良剂
CN102352254A (zh) * 2011-08-22 2012-02-15 中国农业科学院农业环境与可持续发展研究所 一种红壤改良剂
CN103299744A (zh) * 2013-05-23 2013-09-18 北京林业大学 一种控制种子萌发的包衣剂、包衣种子及其制备方法
CN103299744B (zh) * 2013-05-23 2015-05-20 北京林业大学 一种控制种子萌发的包衣剂、包衣种子及其制备方法
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