CN102875243A - Composite rice seedling cultivation matrix and preparation method thereof - Google Patents

Composite rice seedling cultivation matrix and preparation method thereof Download PDF

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CN102875243A
CN102875243A CN2012104120658A CN201210412065A CN102875243A CN 102875243 A CN102875243 A CN 102875243A CN 2012104120658 A CN2012104120658 A CN 2012104120658A CN 201210412065 A CN201210412065 A CN 201210412065A CN 102875243 A CN102875243 A CN 102875243A
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rice
seedling
vermiculite
earthworm
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CN102875243B (en
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张亚洁
叶成华
柏彦超
华晶晶
王振省
周群
肖尧
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Yangzhou University
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Abstract

The invention discloses a composite rice seedling cultivation matrix and a preparation method of the matrix. The composite rice seedling cultivation matrix comprises the following components by weight: 60% of earthworm cast, 30% of vermiculite and 10% of nutrient soil by volume percent, wherein per cubic meter of matrix contains 7.5kg of ferrous sulfate heptahydrate. According to the invention, preparation method is simple, resource is rich and cost of materials is low, wastes are changed into valuable, the environmental pollution is reduced, and the seedling cultivation matrix is enough in nutrient and stable in properties. After the matrix is used for seedling cultivation, the operation is simple and convenient, and the labor intensity is lightened; furthermore, the rice seedlings are good in quality and high in percentage establishment of seedling. The matrix disclosed by the invention promotes the industrial development of rice transplanting of a rice transplanter, and is more beneficial to building ecological villages and towns and new villages.

Description

A kind of composite rice seedling matrix and preparation method thereof
Technical field
The present invention relates to a kind of method of organic composition and preparation thereof of rice nursery substrate, belong to solid organic castoff biologically digesting and application technology as the second resource field.
Background technology
Substrate culture refers in certain place or container by the fixing root system of plant and absorb nutritive medium and the plant cultivation method of oxygen of matrix.According to statistics, 90% soilless culture form all is substrate culture in the world.Soilless culture substrate is the growth medium that the stable water of coordinating, gas, fertile structure can be provided for plant, it except support, fixedly the plant, the more important thing is the carrier that serves as nutrient and moisture, make nutrient and moisture from nutritive medium be able to transfer, root system of plant is therefrom selected to absorb as required.
Seedling medium is to be exclusively used in the matrix of growing seedlings in the matrix.Can matrix continue to provide nutrient to guarantee that seedling need to be the key of cultivating strong sprout in the absorption of whole breeding time.Along with improving constantly of the level of growing seedlings and requirement, the quality requirements of seedling medium is also being improved constantly.But because the reason of the aspects such as manpower and funds, present seedling medium all trends towards broad spectrum type, develop relatively seldom for the physilogical characteristics of different plants and to research and the achievement of the special seedling medium of the requirement design of matrix, especially aspect rice mechanization industrial seedling rearing matrix.
1, the development bottleneck of traditional matrix commonly used
At present the most frequently used cultivation matrix mainly is the inorganic matrixes such as vermiculite and rock wool, and the organic substrate such as peat (claiming again the peat composed of rotten mosses).The high water retention property of expanded vermiculite and sheet structure make it have the ability that the air that makes in the matrix and moisture reach balance coordination, play and fixingly support plant, supply the multiple effects such as a small amount of mineral nutrient, fertilizer conservation, water conservation and improvement matrix physical behavior.Many cavities of its particle surface also provide the suitable drain and the aeration condition that very are fit to simultaneously for keeping moisture and nutritive ingredient that huge surface-area is provided.Rock wool is the cultivation matrix of many national widespread uses in the world today, has formed the complete utilisation technology system of a cover.Peat is because fibre content is abundant, and loose porous, ventilating permeable is good, specific surface area is large, and the absorption sequestering power is strong, and stronger ion-exchange and salt balance controllability are arranged, have again the performance that strengthens plant drought, disease-resistant, anti-low temperature, anti-salt marsh concurrently, be widely used especially.These matrix can be used separately, also can mix according to certain ratio and use.
Although above matrix has many advantages, but its shortcoming is separately arranged.Need add nutritive medium such as Soilless culture, and peat is the non-renewable resource of limited amount and short-term etc.And because these matrix itself all can not provide rice growth required various nutritive substances, no matter be to use separately or several collocation use, all need extra nutritive substance to replenish.This can cause a lot of environmental problems, and has also increased greatly rice mechanization rice transplanting grow seedlings difficulty and the cost of work.
In addition, since the later stage eighties in last century, American-European countries has issued and implemented relevant environmental regulation in succession, as forbids the discharging of nutritive medium in order to avoid impurely descend or earth surface water source, forbid the exploitation of peat resource etc., this impels soilless culture progressively to change to environment-friendly type, economical, poly-talented direction.
2, the present Research of Novel seedling raising matrix
Based on the inherent shortcoming and defect of above various traditional seedling mediums, various organic seedling raising matrixes arise at the historic moment, organic substrate refers to both also not use traditional nutrition liquid irrigation root system of plant without natural soil, but the organic solid-state matrix that adopts various organic wastes etc. to produce through method and approaches such as the long-pending system of the fermentation of becoming thoroughly decomposed and sterilizations.The organic substrate product amount of domestic contrast maturation is also few, mainly contains coconut fibre, bark, bagasse, rice husk, saw dust, reed, stalk.
Other organic substrate: mainly come from various organic solid castoffs, comprise agriculture and industry waste and municipal wastes.As mud and garbage compost can part replacement peat, Wastage of food industry trester, apple residue etc. are used for the cultivations of plants such as skunk bush abroad.In addition, the waste residue of Chinese medicine slag, Pericarppium arachidis hypogaeae, coffee processing has report to be applied to soilless culture.Usually these organic substrates all are to mix by a certain percentage use with other organic substrates such as the inorganic matrix such as vermiculite or peat just can obtain preferably effect.
The research that is directed to specially in the market rice nursery substrate still is in the fragmentary stage, and about rice nursery substrate research and development achievement seldom.The development of transplanting has now become the gesture that a single spark can start a prairie fire, and promoting transplanting is the developing direction of current Rice Production.Adopting the special-purpose seedling raising ground substance seedling of paddy rice, is a new way exploring in recent years machine transplanting of rice seedling.Machine-transplanted rice is had relatively high expectations to seedling quality, bring into play machine transplanting of rice advantage, makes the rice high yield stable yields, must cultivate to meet the strong seedling of machine transplanting of rice required standard.Although at present production has occurred planting the technology such as the floppy disk seedling that seedling matches, two film seedling with machinery, the seedling medium remains take Nutrition Soil as main.Although adopt Nutrition Soil seedling cost lower, but need to take a large amount of soil away as Nutrition Soil from large Tanaka during seedling, this will take away a large amount of mellow soil layer soil, if fetch earth operation for years, mellow soil layer in the soil will be more and more thinner, and whole fetch earth and the preparation process of Nutrition Soil in need a large amount of labor forces, adding the rural laborer shifts in a large number, agricultural workforce's quality generally descends, and rural laborer's price is generally higher, and recruitment famine and recruitment cost constantly increase when causing seedling.In addition, the fostering and apply fertilizer and prepare the requirement that does not usually reach strong seedling of Nutrition Soil, and have seedling, play that the seedling recruitment is many, complex procedures, occupy cultivated land and the series of problems such as the seedling piece is heavy, mechanical work is loaded and loss is large.
Summary of the invention
Purpose of the present invention is exactly unstable for above-mentioned existing seedling medium character, the defective such as need supplement the nutrients, relative merits in conjunction with seedling cultivation of rice characteristics and various raw materials, provide a kind of Nonrenewable resources such as peat of avoiding to use, improve nutrient content, utilize the rice nursery substrate and preparation method thereof of the stable in properties of organic waste exploitation, use and to cultivate well developed root system behind this seedling medium, the seedling stem is sturdy, transplanting survival rate is high, strong adaptability and the high rice seedling of index in strong sprout.
Composite rice seedling matrix of the present invention, comprise the matrix that is consisted of by earthworm excrement, vermiculite and Nutrition Soil, the volume percent of wherein said earthworm excrement, vermiculite, Nutrition Soil is: earthworm excrement 60%, vermiculite 30%, Nutrition Soil 10%, contain iron vitriol 7.5kg in every cube of matrix.
The preparation method of above-mentioned rice nursery substrate comprises the steps:
1) with volume percent be: earthworm excrement 60%, vermiculite 30% and Nutrition Soil 10% fully mix and make just rice nursery substrate processed.
2) during seedling, add again 7.5kg/m 3About iron vitriol (volume is ignored), now mix existing usefulness.
Described earthworm excrement can obtain by following: as earthworm foodstuff, provide the environment of suitable earthworm growth with feces of livestock and poultry (cow dung), will be screened into through the earthworm excrement fragmentation that dealing with earthworm produces the earthworm excrement of 1-4mm particle diameter; The earthworm excrement comes from Jiangsu Province agro-environment safety technical service center organic solid waste biologically digesting base, clears up cow dung obtaining by " flat No. two greatly " earthworm.Contain in the earthworm excrement and separate alkali nitrogen 911.3mg/kg, rapid available phosphorus 412.0mg/kg, available potassium 3798.3mg/kg, organic 396.4g/kg, humic acid 155g/kg, earthworm excrement water content is 168g/kg when using.
The particle diameter of described vermiculite, Nutrition Soil and iron vitriol is 3-5 ㎜;
Said Nutrition Soil among the present invention is also referred to as vegetable garden soil or vegetable garden fine earth, just refer to just passable through the soil of fostering and apply fertilizer in the locality, such as the soil that fetches earth in from the field of planting vegetables after sieving.
Advantage of the present invention:
1. available resources are abundant, and materials are cheap.In China's economic society high speed development, livestock and poultry breeding industry is fast development also, and the cultivation scale is increasing, progressively develops into an independently industry.The fast development of, mass-producing intensive along with livestock and poultry breeding industry, batch production, the generation of livestock and poultry breeding industry ight soil waste also sharply increase, and have become the main production source of China's agricultural organic solid castoff at present.Utilize feces of livestock and poultry to produce rice seedlings cultivating matrix, available resources are very abundant, and the materials price is also very cheap.
2. turn waste into wealth environmental contamination reduction.The height that livestock and poultry cultivation is produced is intensive, the ability that makes the generation of feces of livestock and poultry substantially exceed dissolving, processing of its surrounding environment and rationally use.Feces of livestock and poultry contains a large amount of not organism, inorganics, pathogeny and the harmful organisms etc. of digested absorption, can cause many-sided combined pollutions such as atmosphere, water body, soil, biology.Up to now, in the mostly unprocessed direct discharging of China's vast Rural areas feces of livestock and poultry, agricultural environment and ecological safety have been brought great threat.Innoxious, the recycling treatment of feces of livestock and poultry become the hot issue of current solution widespread pollution from the overuse of fertilizers and pesticides in rural area.Adopt feces of livestock and poultry to produce cultivation matrix, not only solved the problem of environmental pollution of agricultural solid residue, and turned waste into wealth fully, effectively utilize waste and create economic benefit and social benefit.
3. nutrient is sufficient, stable in properties.Earthworm promotes the Nutrient Cyclings such as C, N, P by the decomposition and inversion to organic substance, increases the organic materials nutrient supply and by improvement, coordination to its structure, makes the earthworm fecal energy satisfy better the various requirement of plant-growth.But the multiple enzymes such as earthworm digestive tube extracellular proteinase, lipase, cellulase, chitinase, amylase, these enzymes have stronger biocatalysis to the decomposition of most organic wastes.Wormcast is a kind of black, homogeneous, the class material in small, broken bits of nature Earthy Taste is arranged, have good permeability, air permeability, drainage and high water holding capacity, wormcast has very large surface-area, so that many beneficial microorganism existences and have good absorption and keep the ability of nutritive substance, the various plants hormone is rich in early stage studies show that in the wormcast.Wormcast is rich in humic acid material simultaneously, and humic acid can affect plant nutrition absorption and protein synthesis.The preserve moisture and fertility ability of soil is increased substantially.
As earthworm foodstuff, with the main raw material of earthworm excrement as matrix, make the Novel rice seedling raising ground substance with addition of vermiculite, Nutrition Soil and iron vitriol again with feces of livestock and poultry.This matrix nutrition composition is abundant, stable in properties, and organic content is high, makes between the whole nursery stage of paddy rice and can both obtain sufficient nutrition supply.The rice seedlings that utilizes this Novel rice seeding matrix to bring out, well developed root system, the seedling stem is sturdy, and surviving rate is high after transplanting, strong adaptability, robust growth.
4. matrix composition is simplified, and unit weight is lighter, is easy to industrialized development.Because matrix unit weight is lighter, be convenient to transportation, little to the rice transplanting mechanical load, thereby mechanical wear is light, the speed of planting is fast, and the rice field rate of being short of seedling is low.This prescription has been simplified the process of matrix composition, reduces fertilising and waits the step of growing seedlings, and has reduced cost.Be convenient to batch production, specialized seedling, promote the industrialized development of rice machine rice transplanting, advance ecological villages and small towns and new countryside construction.
Description of drawings
The composite interstitial substance of the different iron levels of Fig. 1 is on the impact of rice shoot root/shoot ratio.
The composite interstitial substance of the different iron levels of Fig. 2 is on the impact of rice shoot index in strong sprout.
Embodiment
Embodiment 1
With each component by volume per-cent be: earthworm excrement 60%, vermiculite 30% and Nutrition Soil 10% fully mix makes just type rice nursery substrate processed, adds 7.5kg/m during use again 3Iron vitriol (volume is ignored) is now mixed existing usefulness.
1, test materials
Test in Agricultural College Affiliated to Yangzhou Univ. experiment agriculture and animal husbandry field in 2012 and carry out.Rice varieties is Huaihe River rice No. 5 for trying the water.Earthworm excrement: come from the discarded biologically digesting base of Jiangsu Province agro-environment safety technical service center organic solid, clear up cow dung obtaining by " flat No. two greatly " earthworm.Contain in the earthworm excrement and separate alkali nitrogen 911.3mg/kg, rapid available phosphorus 412.0mg/kg, available potassium 3798.3mg/kg, organic 396.4g/kg and humic acid 155g/kg, particle diameter 1-4mm.Vermiculite: come from Zhenjiang training flower bud fertilizer company limited, Nutrition Soil among the embodiment: come from ground, stubble vegetable garden before the Yangzhou University agriculture and animal husbandry field, be the fine earth that the fragmentation of fetching earth is sieved, the particle diameter of vermiculite and Nutrition Soil is 3-5 ㎜.Iron vitriol is that Chemical Reagent Co., Ltd., Sinopharm Group produces.Contrast (CK) matrix is (commercially available) of the development of power agricultural resource company limited of changzhou city section.The seedling dish is the plastics hard disk, and specification is 3 centimetres of 28 cm x, 58 cm x, bottom flat, hole rare (bottom outlet several 70 ~ 80,2 ~ 3 millimeters in aperture).
2, test design
2.1 substrate composition is processed: be respectively earthworm excrement 60%, vermiculite 30% and Nutrition Soil 10% with volume ratio and be mixed with just rice seedling raising ground substance processed, then the iron vitriol of different mass is added in each processing of design.Every processing repeats 3 times.Specific design is composed as follows:
The concrete material of the composite interstitial substance of the different iron levels of table 1 forms
Figure BDA00002305496300061
According to hard plastic dish long 58 centimetres, wide 28 centimetres and high 3 centimetres specification, calculating is moulded dish and can be filled approximately 4000cm of matrix volume 3Thereby, extrapolate every cube of matrix and need add how many iron vitriols, details such as table 2:
Add the iron vitriol particular sheet in table 2. matrix
2.2 seed treatment: get No. 5 seed rice of Huaihe River rice ready according to the seed of every mu of land for growing field crops 3.5~4kg, raise before the seed soaking and shone 1-2 days; After salt (proportion 1.08~1.12) seed selection, eluriate clean with clear water; The medicament seed soaking is no longer eluriated with clear water after the seed soaking, directly vernalization, and broken chest shows money or valuables one carries unintentionally and gets final product.
2.3 sowing and management: after planting, stand the withered matrix sterilization of only carrying out in conjunction with water spray with 1000 times, cover with the composite interstitial substance of mixing thoroughly again, be advisable not reveal seed.Mould dish in the tiling of seedling plate, in order to take full advantage of the seedling plate and to be convenient to seedling, mould dish horizontally-arranged two row for every, tiling closely comes into line successively, and trying to get to the heart of a matter fits tightly with bed surface.After completing dish, being plugged the bamboo bow, building plastic sheeting for farm use, take off film after 1 week, use sunshade net instead again and cover, mainly is anti-bird.Rice shoot is the emphasis of management from 1 leaf, 1 heart to 2 leaf, 1 heart, observes the variation of rice shoot every day, as finding that rice shoot is without guttation or the timely moisturizing of leaf roll phenomenon.
2.4 mensuration project and method
The requirement of rice shoot is carried out the investigation of seedling quality according to transplanting.This test is 20d after broadcasting, every seedling dish is got representational plant 10 strains and is measured its leaf age, plant height (measuring with ruler), individual plant stem foot wide (measuring with ruler), individual plant radical (artificial counting method), the longest root long (the ruler method of masurement is as the criterion with the vertical maximum perpendicular length of root).Every dish is got representative rice shoot 50 strains more in addition, rinses well, respectively with overground part and underground part separately, plant is placed the 30min that completes under 105 ℃ of the temp. controllable air dry ovens, dries to constant weight under 80 ℃ again, respectively overground part and dry matter weight of hypogeal parts is weighed.
2.5 data analysis
This is tested all data and all processes with Excel, and SPSS carries out statistical study, and SigmaPlot draws.
3, results and analysis
3.1 the composite interstitial substance of different iron levels is on the impact of seedling quality
As can be seen from Table 3, the seedling leaf that T1, T2, T3, T4, T5 process is contrast (CK) increase by 29.1%, 25.6%, 22.7%, 31.1% and 23.9% respectively, and difference all reaches conspicuous level, but it is not remarkable to process difference.The plant height that T3 processes is the highest, and contrast increases by 59.7%, secondly be T4, but both differences is not remarkable, and again for T2 processes, T1 and the performance of T5 plant height are shorter, and difference is not remarkable each other.Be it can also be seen that by table 3, along with the increase of iron level in the matrix, the SPAD value of blade also increases thereupon, and each processes all contrast significantly increases.The indefinite radical of rice shoot that T2 processes is maximum, secondly is that T4, T1 and T3 process, and they are respectively than the remarkable increase by 34.4% of CK, 19.0%, 18.1% and 13.3%; The longest root that T2 processes is long the longest, secondly is that T1 and T4 process, and T2, T1 and T4 are respectively than the remarkable increase by 19.5% of CK, 17.4% and 9.2%, and all the other processing are not remarkable than contrast difference.In sum, the seedling leaf that different iron level composite interstitial substances are cultivated and plant height all contrast significantly increase, and along with the increase of Shi Tieliang, chlorophyll content increases, indefinite radical and the longest root length with T2 process show more excellent.In general, add the every quality of rice seedling that the composite interstitial substance of ferro element cultivates and obviously be better than contrast.
The composite interstitial substance of the different iron levels of table 3 is on the impact of Seedling Quality in Rice
Figure BDA00002305496300081
Different letter representation p<0.05 significance level of difference, it is not remarkable that data contain same letter person's difference.
3.2 the composite interstitial substance of different iron levels is on the impact of rice shoot root/shoot ratio
Root/shoot ratio refers to the fresh weight of foot end and over-ground part or the ratio of dry weight, the upgrowth situation of plant and envrionment conditions on the crop field, the reflection of underground part Different Effects, in general, temperature is higher, and moisture, nitrogenous fertilizer are in liberal supply, and phosphate fertilizer is less, illumination can promote the plant shoot growth when weak, reduce root/shoot ratio, the next promotion underground part growth of reverse situation increases root/shoot ratio.As seen from Figure 1, the root/shoot ratio that T2 processes is maximum, secondly be that T4 and T1 process, and they increase by 35.3%, 31.2% and to reduce the root/shoot ratio that 17.6%, T5 processes minimum than CK respectively, than CK minimizing 17.6%.
3.3 the composite interstitial substance of different iron levels is on the impact of rice shoot index in strong sprout
Strong sprout, index was one of important indicator of estimating seedling quality.Strong sprout index=(stem thick/plant height+root dry weight/overground part dry weight) * complete stool dry weight.As seen from Figure 2, the index in strong sprout that T2 processes is high, secondly be that T1 and T4 process, they increase by 81.3%, 75.7% and 53.3% than CK respectively, the indexed performance in strong sprout that T5 processes is less, the rice shoot index in strong sprout that just adds the ferro element cultivation in the composite interstitial substance of system all is significantly higher than CK, and it is excellent that the quality of seedlings obviously becomes.
Therefore, this test is reached a conclusion: with each component volume ratio be: earthworm excrement 60%, vermiculite 30% and Nutrition Soil 10% mixes makes just composite interstitial substance processed, and the iron vitriol that adds about 7.5kg/m3 during seedling is made composite interstitial substance, corresponding to the rice seedling raising ground substance prescription of T2 processing in the test.No matter the rice seedling that this substrate formula is cultivated is that indefinite radical, the longest root are long, root/shoot ratio, should strong sprout the seedling quality all cultivated than other processing and contrast of index, robust growth.

Claims (6)

1. composite rice seedling matrix, comprise the matrix that is consisted of by earthworm excrement, vermiculite and Nutrition Soil, the volume percent that it is characterized in that described earthworm excrement, vermiculite, Nutrition Soil is: earthworm excrement 60%, vermiculite 30%, Nutrition Soil 10%, contain iron vitriol 7.5kg in every cube of matrix.
2. composite rice seedling matrix according to claim 1, the particle diameter that it is characterized in that described vermiculite, Nutrition Soil and iron vitriol is 3-5 ㎜.
3. the preparation method of a composite rice seedling matrix is characterized in that comprising the steps:
1) with volume percent be: earthworm excrement 60%, vermiculite 30% and Nutrition Soil 10% fully mix and make just rice nursery substrate processed;
2) add again 7.5kg/m 3Iron vitriol make compound rice seedling raising ground substance, now mix existing usefulness.
4. the preparation method of composite rice seedling matrix according to claim 3, it is characterized in that described earthworm excrement makes by following: with feces of livestock and poultry as earthworm foodstuff, the environment of suitable earthworm growth is provided, will be screened into through the earthworm excrement that dealing with earthworm produces the earthworm excrement of 1-4mm particle diameter.
5. the preparation method of composite rice seedling matrix according to claim 4 is characterized in that described feces of livestock and poultry is cow dung.
6. the preparation method of composite rice seedling matrix according to claim 3 is characterized in that the particle diameter of vermiculite, Nutrition Soil and iron vitriol is 3-5 ㎜.
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CN105272667A (en) * 2015-11-26 2016-01-27 天津天隆农业科技有限公司 Method for preparing rice seedling raising soil by utilizing earthworm cast
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CN106007895A (en) * 2016-05-12 2016-10-12 沈阳农业大学 Municipal sewage sludge rice seedling-raising substrate and production method and application thereof
CN106105861A (en) * 2016-06-25 2016-11-16 丁玉琴 A kind of preparation method of rice seedling raising ground substance
CN107382408A (en) * 2017-06-23 2017-11-24 江苏省农业科学院 Suitable for the seedling medium of mechanization transplanting
CN108610168A (en) * 2017-05-19 2018-10-02 苏州赵陈生物科技有限公司 A kind of rice nursery substrate
CN109146270A (en) * 2018-08-07 2019-01-04 河北农业大学 Establishment method of vegetable seedling strengthening index
CN111742813A (en) * 2020-05-11 2020-10-09 徐州惠满丰种业有限公司 Method for preparing rice seedling raising soil by utilizing wormcast and using method thereof
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CN104671966A (en) * 2013-12-03 2015-06-03 东港市丰穗肥业有限公司 Nutritional soil for raising seedlings of physalis alkekengi in greenhouse and application of nutritional soil
CN104206286A (en) * 2014-09-16 2014-12-17 重庆大学 Cow dung energy gradient utilization combined disposal method for large-scale cattle farm
CN105330409A (en) * 2015-11-05 2016-02-17 周美文 Preparation method of rice seedling raising nutrition soil for mechanized rice transplanting
CN105272667A (en) * 2015-11-26 2016-01-27 天津天隆农业科技有限公司 Method for preparing rice seedling raising soil by utilizing earthworm cast
CN106007895A (en) * 2016-05-12 2016-10-12 沈阳农业大学 Municipal sewage sludge rice seedling-raising substrate and production method and application thereof
CN106105861A (en) * 2016-06-25 2016-11-16 丁玉琴 A kind of preparation method of rice seedling raising ground substance
CN108610168A (en) * 2017-05-19 2018-10-02 苏州赵陈生物科技有限公司 A kind of rice nursery substrate
CN107382408A (en) * 2017-06-23 2017-11-24 江苏省农业科学院 Suitable for the seedling medium of mechanization transplanting
CN109146270A (en) * 2018-08-07 2019-01-04 河北农业大学 Establishment method of vegetable seedling strengthening index
CN109146270B (en) * 2018-08-07 2022-02-11 河北农业大学 Establishment method of vegetable seedling strengthening index
CN111742813A (en) * 2020-05-11 2020-10-09 徐州惠满丰种业有限公司 Method for preparing rice seedling raising soil by utilizing wormcast and using method thereof
CN114868620A (en) * 2022-05-26 2022-08-09 江苏佳禾兴农业生物科技有限公司 Seedling raising substrate and preparation method and application thereof

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