CN1436446A - Plant growth substrate and its production process and special apparatus - Google Patents
Plant growth substrate and its production process and special apparatus Download PDFInfo
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- CN1436446A CN1436446A CN02100590A CN02100590A CN1436446A CN 1436446 A CN1436446 A CN 1436446A CN 02100590 A CN02100590 A CN 02100590A CN 02100590 A CN02100590 A CN 02100590A CN 1436446 A CN1436446 A CN 1436446A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The plant growth substrate made of agricultural leftover is used for soil-less culture. It consists of substrate layer and seed layer inside the substrate layer. The production process includes cutting and dedusting material in straw cutter and deduster; mixing with nutrient reagent; degrading straw in puffing separator; regulating water content; re-processing the material in crusher, separator, metering device and loosening machine; spreading substrate layer in forming machine and seedling; pressing, and winding into roll or cutting into blocks. The present invention may be used in producing lawn, vegetable, etc.
Description
Technical field:
The present invention relates to a kind of plant growth medium of soilless culture, referring in particular to a kind of is plant growth medium and the preparation method and the production equipment special of raw material with agricultural wastes.
Background technology:
The production on existing lawn mainly is to adopt soil cultivation and relevant device are arranged, though this technology is simple, easy operating, but its production process meeting heavy damage soil, and waste a large amount of agricultural arable lands, the lawn weight of being produced is big, the cost height, and the production cycle is long.The agricultural wastes in rural area such as wheat straw, straw, cornstalk etc. are difficult to find the reasonable use mode always, and be most of at present by combustion (of oil) insitu, caused the serious air pollution and the wasting of resources.
Summary of the invention:
The objective of the invention is: providing a kind of is the plant growth medium of primary raw material making and the preparation method and the production equipment special of this plant growth medium with agricultural wastes, can be used for production lawn or vegetables, in the manufacturing process of plant growth medium, do not produce pollutant, and cost is low, in light weight.
The technical scheme of taking for achieving the above object is: a kind of plant growth medium, constitute by plant growth medium layer and Seed Layer, and Seed Layer is located in the middle of the adjacent two plant growth medium layers, and wherein the plant growth medium layer is the 2-5 layer, and Seed Layer is the 1-4 layer.
A kind of preparation method of plant growth medium may further comprise the steps: chaffcutter and dedusting → No. 1 nutritive reagent of interpolation → expanded with separate → adjust moisture content and add No. 2 nutritive reagents → pulverize and separate → measure and break up → sow and moulding;
(1), chaffcutter and dedusting: agricultural wastes such as wheat straw, straw, the cornstalk chaffcutter of packing into is cut to every section and is of a size of 2-15 centimetre, send into dust removal machine then and remove point.
(2), add No. 1 nutritive reagent: add No. 1 nutritive reagent in the material after dedusting, mix; Described No. 1 nutritive reagent consist of two or more chemical fertilizer, wherein the ratio of nitrogen, potassium, phosphorus nutrition composition is 3-6: 2-5: 1-4.
(3), expanded with separate: the material that has added No. 1 nutritive reagent is sent into puffing apparatus, in puffing apparatus, under 0.3-3MPa pressure, handled 3-30 minute with saturated vapor, during decompression suddenly material is dissociated, then will be by expanded feed separation by separator, the intermediate storage tank of packing into.
(4), adjust moisture content and add nutritive reagent No. 2: the expanded material in the intermediate storage tank is taken out, adjust moisture content with oven dry or air-dry method, making the water content in the material is 20%-80%, adds nutritive reagent then No. 2, makes thread particle base starting material after stirring; Described No. 2 nutritive reagents consist of two or more chemical fertilizer, water-loss reducer, insecticide and plant growth regulator, wherein the nitrogen of chemical fertilizer, potassium, phosphorus nutrition composition are than being 3-6: 2-5: 1-4; Water-loss reducer can be polyvinyl alcohol/polyacrylic acid series or starch/polyacrylic acid grafted complex series; Insecticide can be tpn, carbendazim, zineb, mop Tianjin, Tuzet, triazolone, furans pellet or organophosphorous pesticide; The Main Ingredients and Appearance of plant growth regulator is for drawing indolylbutyric acid.
(5), pulverize and separate: thread particle base starting material is divided into 2-5 part by the number of plies of required matrix, sending into 2-5 platform cracker more respectively pulverizes, the granularity of pulverizing the back base starting material is the 2-20 millimeter, delivers to 2-5 cyclone separator respectively by blower fan then and carries out gas, material separation; Or earlier base starting material is pulverized, be divided into 2-5 part afterwards again, deliver to 2-5 cyclone separator respectively by blower fan and separate.
(6), measure and break up: the base starting material after will separating is sent into corresponding storage bin hopper, and carries out the metering of injected volume, and base starting material is after metering sent into 2-5 platform hog shred respectively and broken up, and forms the base starting material of loose structure.
(7), sowing and moulding: be provided with 1 sower between per two hog shreds, hog shred is the 2-5 platform, sower is the 1-4 platform, at first by first hog shred spreading base starting material on forming machine, take under the 1st sower by the moulding band and to sow, cover one deck base starting material by second hog shred again, so repeatedly, laminated through 2-5 time; Be pressed into the banded matrix of 1-15 cm thick by the pressure roller that is located at the forming machine end, batch bundledly at last with coiling machine, or tailor into piece, make the plant growth medium finished product after the packing by guillotine.
A kind of special equipment of making plant growth medium comprises chaffcutter, dust removal machine, nutritive reagent jar, expanded separator, intermediate storage tank, cracker, separator, hopper, meter, hog shred, sower, conveyer belt, forming machine and rolling-cutting machine.
Chaffcutter links to each other with dust removal machine through conveyer belt, and dust removal machine joins through conveyer belt and expanded separator, is provided with the nutritive reagent jar between dust removal machine and the expanded separator, and expanded separator is connected with intermediate storage tank through conveyer belt.
Form the reinforced passage in 2-5 road respectively by 2-5 platform cracker, a 2-5 separator and 2-5 platform hog shred, the cracker of the reinforced passage in every road joins by feeding air channel and separator, the port of export of separator connects the feeding mouth of a hopper by conveyer belt, the bottom of hopper is provided with meter, and is connected with hog shred.
Forming machine is made of moulding band, supporting plate, carrying roller, drive roll, driven voller, pressure roller, idler roller, adjustment roller and backing roll, the two ends of moulding band are socketed in respectively on drive roll and the driven voller, the bottom surface of moulding band upside is provided with 3 with mounting plate and carrying roller, idler roller, adjustment roller and backing roll are located at the two sides of moulding band downside respectively, the end of moulding band is provided with pressure roller and rolling-cutting machine, and the front end of moulding band is provided with the debatching axle.
The discharging opening of each hog shred be separately positioned on forming machine above, be provided with sower between adjacent two hog shreds, the hopper lower end of sower upside is equipped with meter.
Purpose of the present invention can also be achieved through the following technical solutions:
Be provided with a warm air drier on the next door of described intermediate storage tank.
Described moulding band be by rubber, metal, plastic material is independent or compounded porose ribbon, atresia ribbon or net.
Described rolling-cutting machine is coiling machine or guillotine.
Advantage compared with prior art of the present invention is: when making plant growth medium owing to this kind of employing method and apparatus, what utilize is agricultural wastes, do not need soil, therefore take up an area of less, cost is low, less energy consumption, in light weight, production efficiency is high, and contamination-free produces in manufacturing process; Again because the finished product produced is a layer structure, and be packaged as web-like or bulk, therefore transportation and subsequent operation make things convenient for; It can be used for the production lawn, can also be applied to produce vegetables etc., remarkable in economical benefits.
Description of drawings:
Fig. 1 is the structural representation of plant growth medium of the present invention.
Fig. 2 is the calcspar of plant growth medium preparation method of the present invention.
Fig. 3 is a plant growth medium making apparatus schematic diagram of the present invention.
Embodiment:
Embodiment 1.
As shown in Figure 1, a kind of plant growth medium is made of three layers of institute, and upper strata (1) and lower floor (3) are the plant growth medium layer, and middle one deck is Seed Layer (2), links together by roll extrusion between three layers.
As shown in Figure 2, a kind of preparation method of plant growth medium may further comprise the steps: chaffcutter and dedusting → No. 1 nutritive reagent of interpolation → expanded with separate → adjust moisture content and add No. 2 nutritive reagents → pulverize and separate → measure and break up → sow and moulding.
(1), chaffcutter and dedusting: 1000 kilograms of wheat straws chaffcutter of in batches packing into is cut off, and every section is cut to 3-4 centimetre, sends into the dust removal machine dedusting then.
(2), add No. 1 nutritive reagent: the wheat straw after the dedusting is added No. 1 nutritive reagent in the porch of material loading conveyer belt and stir, No. 1 nutritive reagent is that to add 50 kg of water by 6 kilograms of urea, 4 kilograms of potash and 2 kilograms of ammonium phosphate formulated.
(3), expanded with separate: the material that has added No. 1 nutritive reagent is sent into puffing apparatus through the material loading conveyer belt, in puffing apparatus, under 2Mpa pressure, handled 10 minutes with saturated vapor, blowing afterwards reduces pressure, water vapour by separator during and air and other incoagulable gas with Pengization with by expanded feed separation, again will be by the expanded material intermediate storage tank of packing into by conveyer belt.
(4), adjust moisture content and add nutritive reagent No. 2: the expanded material in the intermediate storage tank is taken out, in warm air drier, adjust moisture content, making the water content in the material is 30%, it is 40 ℃ that temperature in the drying baker is made as, add nutritive reagent then No. 2, and after stirring, make the pulpous state base starting material, No. 2 nutritive reagents are that 5 kilograms of potassium chloride are joined 3 kilograms of superphosphate, add 0.1 kilogram of tpn insecticide, 0.2 kilogram of polyvinyl alcohol/polyacrylic acid series water-loss reducer and 0.01 kilogram of plant growth regulator again, form by the dilution of 100 kg of water then.
(5), pulverize and separates: make 2 layers of making plant growth medium, raw material is divided into 2 parts, each part sent into 2 crackers respectively pulverize, the base starting material granularity after the pulverizing is 6 millimeters, is separated by 2 cyclone separators respectively by each feeding air channel then.
(6), measure and break up: through 2 crackers pulverize and base starting material after 2 separators separate by being with conveyer to send into corresponding storage bin hopper, and carry out the metering of injected volume by set meter, first is controlled to be 4Kg/m
2, second is controlled to be 1Kg/m
2, base starting material is after metering sent into 2 hog shreds and is broken up, and forms the base starting material of loose structure.
(7), sowing and moulding: the space is 8 meters between 2 hog shreds, be provided with a sower therebetween, at first by first hog shred spreading base starting material on forming machine, be sent to sowing under the sower then, seeding quantity is every square metre 20 gram, covers one deck base starting material by second hog shred again, laminated through 2 times, be pressed into the banded matrix of 2 cm thicks by the pressure roller that is located at the forming machine end, batch bundledly at last with coiling machine, make the plant growth medium of finished product after the packing.
As shown in Figure 3, a kind of special equipment of making plant growth medium, mainly comprise chaffcutter (11), dust removal machine (12), nutritive reagent jar (13) and (19), expanded separator (14), intermediate storage tank (15), cracker (5) and (51), separator (6) and (61), hopper (7) and (71), meter (8), (81) and (82), hog shred (9) and (91), warm air drier (16), sower (17) and conveyer belt, also comprise forming machine (4) and coiling machine (18).
The port of export of chaffcutter (11) links to each other through the arrival end of conveyer belt (10) with dust removal machine (12), the port of export of dust removal machine is provided with conveyer belt (101) and nutritive reagent jar (13), raw material through chaffcutter and dedusting adds No. 1 nutritive reagent by the nutritive reagent jar, then by conveyer belt (101) be transported to carry out in the expanded separator (14) expanded with separate, the outlet of expanded separator is connected to the initial end of conveyer belt (102), raw material is transported to intermediate storage tank (15), the next door of intermediate storage tank is provided with warm air drier (16) and nutritive reagent jar (13), the raw material in the intermediate storage tank is sent into warm air drier adjust moisture content and add No. 2 nutritive reagents by the nutritive reagent jar.
By two crackers (5) and (51), two separators (6) and (61), two hog shreds (9) and (91) are formed 2 tunnel reinforced passages respectively, the cracker (5) of the reinforced passage in every road and (51) join by feeding air channel and separator (6) and (61) respectively, the port of export of separator is respectively equipped with conveyer belt (103) and (104), the end of conveyer belt connects the feeding mouth of a hopper (7) and (71) respectively, the bottom of hopper is respectively equipped with meter (8) and (81), and be connected with (91) with hog shred (9), raw material in 2 tunnel reinforced passages through pulverizing, separate, measure and break up and send into forming machine (4) moulding.
Forming machine (4) is by moulding band (41), supporting plate (42), drive roll (43), driven voller (48), pressure roller (44), idler roller (45), adjust roller (46), backing roll (47), carrying roller (49) and coiling machine (18) constitute, the two ends of moulding band are socketed in respectively on drive roll (43) and the driven voller (48), constitute two sections capable of circulation, the bottom surface of moulding band epimere uniformly-spaced is provided with 6 supporting plates (42) and 5 carrying rollers (49), be used to carry the weight of moulding band and raw material, idler roller (45), adjust the two sides that roller (46) and backing roll (47) are located at moulding band hypomere respectively, be used for tensioning and adjust the moulding band, the end of moulding band is provided with pressure roller (44) and coiling machine (18), also can be provided with a debatching axle at driven voller (48) one ends of forming machine.
The discharging opening of two hog shreds (9) and (91) be separately positioned on forming machine (4) above, be provided with a sower (17) between two hog shreds, the hopper of sower (19) lower end is equipped with meter (82), along with the circulation of moulding band moves forward, at first by the base starting material of first hog shred (91) spreading ground floor through metering, then by quantitatively sowing of sower (17), again by the base starting material of second hog shred (9) spreading second layer through metering.When the moulding tape running arrives end, by pressure roller (44) base starting material is flattened, form the plant growth medium of layer structure.Batch bundledly at last by coiling machine (18), make the plant growth medium of finished product soilless culture.
Embodiment 2:
In No. 1 nutritive reagent step of interpolation of present embodiment preparation method, No. 1 nutritive reagent is that to add 80 kg of water by 8 kilograms of ammonium sulfate, 6 kilograms of potassium nitrate and 5 kilograms of superphosphate formulated.
In the adjustment moisture content and No. 2 nutritive reagent steps of interpolation of embodiment preparation method, expanded material in the intermediate storage tank is taken out, in warm air drier, adjust moisture content, making the water content in the material is 75%, it is 120 ℃ that temperature in the drying baker is made as, add nutritive reagent then No. 2, and after stirring, make moist base starting material, No. 2 nutritive reagents are that 30 kilograms of diammonium hydrogen phosphates are joined 7 kilograms of potassium chloride, add 0.2 kilogram of carbendazim insecticide again, 0.1 kilogram starch/polyacrylic acid grafted complex series water-loss reducer and 0.01 kilogram of plant growth regulator formed by the dilution of 80 kg of water then.
Other is identical with embodiment 1.
Adopt above method and apparatus to make the plant growth medium of layer structure, has the quantity-produced ability, contained required nutriment of plant growing and growth promoter in the product of being produced, in the first trimester of plant growing, need not to use chemical fertilizer, can grow after watering.This invention can be used for the production lawn, can also be applied to produce vegetables etc.
Claims (6)
1, a kind of plant growth medium is characterized in that: be made of plant growth medium layer and Seed Layer, Seed Layer is located in the middle of the adjacent two plant growth medium layers, and described plant growth medium layer is the 2-5 layer, and Seed Layer is the 1-4 layer.
2, a kind of preparation method of plant growth medium is characterized in that may further comprise the steps: chaffcutter and dedusting → No. 1 nutritive reagent of interpolation → expanded with separate → adjust moisture content and add No. 2 nutritive reagents → pulverize and separate → measure and break up → sow and moulding;
(1), chaffcutter and dedusting: agricultural wastes such as wheat straw, straw, the cornstalk chaffcutter of packing into is cut to every section and is of a size of 2-15 centimetre, send into the dust removal machine dedusting then;
(2), add No. 1 nutritive reagent: add No. 1 nutritive reagent in the material after dedusting, mix; Described No. 1 nutritive reagent consist of two or more chemical fertilizer, wherein the ratio of nitrogen, potassium, phosphorus nutrition composition is 3-6: 2-5: 1-4; The weight ratio of material and No. 1 nutritive reagent is 100: 3-7;
(3), expanded with separate: the material that has added No. 1 nutritive reagent is sent into puffing apparatus, in puffing apparatus, under 0.3-3MPa pressure, handled 3-30 minute with saturated vapor, during decompression suddenly material is dissociated, make material be soft cotton-shaped, then will be by expanded feed separation by separator, the intermediate storage tank of packing into;
(4), adjust moisture content and add nutritive reagent No. 2: the expanded material in the intermediate storage tank is taken out, adjust moisture content with oven dry or air-dry method, making the water content in the material is 20%-80%, bake out temperature is 20-150 ℃, add nutritive reagent then No. 2, after stirring, make thread particle base starting material; Described No. 2 nutritive reagents consist of two or more chemical fertilizer, water-loss reducer, insecticide and plant growth regulator, wherein the nitrogen of chemical fertilizer, potassium, phosphorus nutrition composition are than being 3-6: 2-5: 1-4; Water-loss reducer can be polyvinyl alcohol/polyacrylic acid series or starch/polyacrylic acid grafted complex series; Insecticide can be tpn, carbendazim, zineb, mop Tianjin, Tuzet, triazolone, furans pellet or organophosphorous pesticide; The Main Ingredients and Appearance of plant growth regulator is for drawing indolylbutyric acid;
(5), pulverize and separate: thread particle base starting material is divided into 2-5 part by the number of plies of required matrix, sending into 2-5 platform cracker more respectively pulverizes, the granularity of pulverizing the back base starting material is the 2-20 millimeter, delivers to 2-5 cyclone separator respectively by blower fan then and carries out gas, material separation; Or earlier base starting material is pulverized, be divided into 2-5 part afterwards again, deliver to 2-5 cyclone separator respectively by blower fan and carry out gas, material separation;
(6), measure and break up: the base starting material after will separating is sent into corresponding storage bin hopper, and carries out the metering of injected volume, and base starting material is after metering sent into 2-5 platform hog shred respectively and broken up, and forms the base starting material of loose structure;
(7), sowing and moulding: be provided with 1 sower between per two hog shreds, hog shred is the 2-5 platform, sower is the 1-4 platform, at first by first hog shred spreading base starting material on forming machine, take under the 1st sower by the moulding band and to sow, cover one deck base starting material by second hog shred again, so repeatedly, laminated through 2-5 time; Be pressed into the banded matrix of 1-15 cm thick by the pressure roller that is located at the forming machine end, batch bundledly at last with coiling machine, or tailor into piece, make the plant growth medium finished product after the packing by guillotine.
3, a kind of special equipment of making plant growth medium is characterized in that: comprise chaffcutter, dust removal machine, nutritive reagent jar, expanded separator, intermediate storage tank, cracker, separator, hopper, meter, hog shred, sower, conveyer belt, forming machine and rolling-cutting machine;
Chaffcutter links to each other with dust removal machine through conveyer belt, and dust removal machine joins through conveyer belt and expanded separator, is provided with the nutritive reagent jar between dust removal machine and the expanded separator, and expanded separator is connected with intermediate storage tank through conveyer belt;
Form the reinforced passage in 2-5 road respectively by 2-5 platform cracker, a 2-5 separator and 2-5 platform hog shred, the cracker of the reinforced passage in every road joins by feeding air channel and separator, the port of export of separator connects the feeding mouth of a hopper by conveyer belt, the bottom of hopper is provided with meter, and is connected with hog shred;
Forming machine is made of moulding band, supporting plate, carrying roller, drive roll, driven voller, pressure roller, idler roller, adjustment roller and backing roll, the two ends of moulding band are socketed in respectively on drive roll and the driven voller, the bottom surface of moulding band upside is provided with 3 with mounting plate and carrying roller, idler roller, adjustment roller and backing roll are located at the two sides of moulding band downside respectively, the end of moulding band is provided with pressure roller and rolling-cutting machine, and the front end of moulding band is provided with the debatching axle;
The discharging opening of each hog shred be separately positioned on forming machine above, be provided with sower between adjacent two hog shreds, the hopper lower end of sower upside is equipped with meter.
4, a kind of special equipment of making plant growth medium according to claim 3, it is characterized in that: the next door in described intermediate storage tank is provided with warm air drier.
5, a kind of special equipment of making plant growth medium according to claim 3 is characterized in that: described moulding band be by rubber, metal, plastic material is independent or compounded, it can be porose band shape, atresia band shape or network structure.
6, a kind of special equipment of making plant growth medium according to claim 3, it is characterized in that: described rolling-cutting machine is coiling machine or guillotine.
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| CN02100590A CN1436446A (en) | 2002-02-07 | 2002-02-07 | Plant growth substrate and its production process and special apparatus |
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| CN02100590A CN1436446A (en) | 2002-02-07 | 2002-02-07 | Plant growth substrate and its production process and special apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388739A (en) * | 2011-07-29 | 2012-03-28 | 兰州大学 | Medium production method of soilless lawn adaptive to arid area |
| CN102428847A (en) * | 2011-09-04 | 2012-05-02 | 大连染谷绿业科技有限公司 | Multifunctional organic plant basal disc and preparation method thereof |
| CN101878724B (en) * | 2009-05-07 | 2012-11-07 | 王铭镛 | Plant culture soil and processing method thereof |
| CN102792880A (en) * | 2012-07-11 | 2012-11-28 | 泰州市中艺农业生态园艺有限公司 | Method for preparing soilless matrix for cultivating lawn |
| CN102907304A (en) * | 2011-08-04 | 2013-02-06 | 王羲元 | Household health-preserving vegetable board and preparation method thereof |
| CN103088787A (en) * | 2013-01-30 | 2013-05-08 | 深圳市东华园林绿化有限公司 | Construction method of ecological river bank |
| CN103588568A (en) * | 2013-11-10 | 2014-02-19 | 湖州艺萌城市农业发展有限公司 | Melon and fruit substrate soil for micro agriculture |
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| CN101878724B (en) * | 2009-05-07 | 2012-11-07 | 王铭镛 | Plant culture soil and processing method thereof |
| CN102388739A (en) * | 2011-07-29 | 2012-03-28 | 兰州大学 | Medium production method of soilless lawn adaptive to arid area |
| CN102388739B (en) * | 2011-07-29 | 2013-01-23 | 兰州大学 | Medium production method of soilless lawn adaptive to arid area |
| CN102907304A (en) * | 2011-08-04 | 2013-02-06 | 王羲元 | Household health-preserving vegetable board and preparation method thereof |
| CN102428847A (en) * | 2011-09-04 | 2012-05-02 | 大连染谷绿业科技有限公司 | Multifunctional organic plant basal disc and preparation method thereof |
| CN102792880A (en) * | 2012-07-11 | 2012-11-28 | 泰州市中艺农业生态园艺有限公司 | Method for preparing soilless matrix for cultivating lawn |
| CN103088787A (en) * | 2013-01-30 | 2013-05-08 | 深圳市东华园林绿化有限公司 | Construction method of ecological river bank |
| CN103588568A (en) * | 2013-11-10 | 2014-02-19 | 湖州艺萌城市农业发展有限公司 | Melon and fruit substrate soil for micro agriculture |
| CN105746125A (en) * | 2016-03-01 | 2016-07-13 | 安徽星美秸秆循环利用科技有限公司 | Method for road slope protection greening through straw grass blankets |
| CN109804867A (en) * | 2019-01-29 | 2019-05-28 | 安徽大学 | A kind of production of ecology bundle and its construction method for side slope water and soil conservation |
| CN109804867B (en) * | 2019-01-29 | 2021-05-25 | 安徽大学 | Ecological bundle manufacturing and construction method for slope water and soil conservation |
| CN110972892A (en) * | 2019-12-06 | 2020-04-10 | 安徽省农业科学院棉花研究所 | Matrix capable of improving quality of spring cotton and preparation method thereof |
| CN110972892B (en) * | 2019-12-06 | 2022-06-24 | 安徽省农业科学院棉花研究所 | Matrix capable of improving quality of spring cotton and preparation method thereof |
| CN115119712A (en) * | 2022-08-12 | 2022-09-30 | 广东省农业科学院环境园艺研究所 | Butterfly orchid culture medium and preparation method and application thereof |
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