CN103875333A - Organic rice planting method - Google Patents
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- CN103875333A CN103875333A CN201410138830.0A CN201410138830A CN103875333A CN 103875333 A CN103875333 A CN 103875333A CN 201410138830 A CN201410138830 A CN 201410138830A CN 103875333 A CN103875333 A CN 103875333A
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Abstract
The invention discloses an organic rice planting method which comprises the following four key steps: performing rice seed fertilizer coating treatment, growing seedlings, transplanting the seedlings and performing soil preparation and fertilization. The rice seeds are treated by coated fertilizers, a fertilizer-seed coating ratio is (35-50):1, and the effects of increasing the germination rate, promoting seedling growth and improving the stress resistance are achieved after fertilizer coating. An organic fertilizer made of substances with the natural insect-resistant and bacteriostatic activity is used at the later stage, double pesticide-fertilizer effects are achieved, the plant diseases and insect pests are greatly reduced, the later-stage control frequency is reduced, fertilizers needed in the ear period are timely supplemented by using foliage fertilizers made of seaweed extracts used in the rice heading period, and the photosynthetic efficiency is improved. The method is simple, work and labor are saved, and the economic benefits, ecological benefits and social benefits are obviously improved.
Description
Technical field
The present invention relates to a kind of agricultural product production technical field, be specifically related to a kind of implantation methods of organic rice.
Background technology
Organic farming refers in agricultural production, follow ecological law, substantially do not use synthetic material's product such as chemical fertilizer, agricultural chemicals, chemical agent, and using fertilizer and the organic feeds such as excrement of animals, green manure, straw-returning as far as possible, various biologies on probation and physical measure are carried out the mode of agriculture of prevention and elimination of disease and pests.20 century 70s; organic farming is surging forward in developed country; organic farming is pollution-free, be conducive to ecological environmental protection and features good taste, safe and high quality; thereby more than 100 country obtained and applied rapidly in the world; the organic farming of China is started in the nineties in 20th century; take plant product as main, the paddy rice of one of staple food crop that the world is main is exactly one of them.Organic paddy rice, on the ground such as Heilungkiang, Fujian, has all obtained larger area plantation, and 2011, the cultivated area of China's organic paddy rice just reached 11.9 ten thousand hm
2.
Plantation organic paddy rice is significant to China, and China is large agricultural country.For a long time, the mode of production of traditional farming is used the compounds such as chemical fertilizer, weed killer herbicide, additive in a large number, and ecotope and bio-diversity have all been brought to harmful effect.And the plantation of organic paddy rice can meet the national requirement to high-grade rice product on the one hand, improve safety, the greenness of food.On the other hand, also help and reduce the agricultural pollution that excrement of animals, agricultural chemicals etc. cause, in addition, also help the diversity of protection China ecology, promote agriculture sustainable development.There are significant economy, society and ecological benefits.
China Patent No.: ZL201210370297.1, denomination of invention is: in the patent of organic paddy rice cultivation method, disclose a kind of organic paddy rice cultivation method, comprise (1) and cultivate rice shoot (2) Term Fertilization (3) rational close planting and four steps of (4) field management, its key is: described Term Fertilization is divided into two steps: the preparation that the first step is well-rotted farmyard manure and using: microorganism fertilizer is evenly sprayed in farmyard manure, covered with plastic film, process and make after 21 days, then use well-rotted farmyard manure in field; Second step is for to use microorganism fertilizer: spray microorganism fertilizer and be less than in the depth of water in the rice field of 3cm, use rice transplanting after 15 days.
China Patent No.: ZL201310487652.8, denomination of invention: disclose a kind of cultivation method of organic paddy rice in a kind of patent of cultivation method of organic paddy rice, comprised that seedling is strengthened in kind selection, seed treatment, cultivation, five large steps are managed, gathered in the crops in good time to Honda.Wherein seed treatment comprises: (1) seed selection of basking seeds: soak seed and within first 5～7 days, select sunny calm weather to bask seeds 2～3 days, stir the seed after airing every day 3～4 times, through the specific gravity selection of row salt solution, salt solution proportion 1.13,50kg water, with crude salt grain 12-12.5kg, fully dissolves; (2) presoaking and germinating: adopt electrical equipment heat, flue heat, two film heats etc., and Insulation is soaked seed, more than when seed soaking, water layer will not have seed 20cm, 11～12 ℃ of temperature, the time is 5～7 days; Use constant temperature germinator to carry out vernalization, germination temperature is 25～28 ℃, time is 20～24 hours, radical bud is two mountains type, long consistent in order to guarantee bud in vernalization process, want the variations in temperature of upper, middle and lower layer in running check germinator, upper and lower, inside and outside kind 2～3 times, keeps seed temperature equalization.Field management comprises: water layer management, artificial weeding, spray foliage fertilizer, disease control.Spraying foliage fertilizer is specially: use special powerful ferment organic foliar fertilizer to spray once in 6 middle of the month of mid-term at rice tillering, spray in each 7 days afterwards once, is sprayed 2～3 times altogether; Disease is mainly take cultural control as main, by selecting the paddy rice Healthy culture measures such as disease-resistant variety, the strong seedling of cultivation, rational close planting, Scientific Regulation fertilising, in good time dry field control excessive growth seedling to prevent and treat.
From above-mentioned document, in agricultural production now, in order to guarantee the yield and quality of organic paddy rice, adopt seed treatment and used well-rotted farmyard manure and the method for microorganism fertilizer.But these having some limitations property of method: (1) rice paddy seed, without the fertile nutrition processing of bag, may cause in the stage of growing seedlings that rice shoot survival rate is low, the quality of seedlings is poor, affects rice yield; (2) dispenser separates with fertilising, increased workload, and the present invention applies medicine fertilizer simultaneously, and two work are carried out together, has improved operating efficiency, and the fertile promotion mutually of medicine, has improved drug effect and fertilizer efficiency.
Summary of the invention
The object of this invention is to provide a kind of implantation methods of organic rice, can overcome existing rice implantation methods and cause rice the Harmful Residue content high, the problem that rice quality is poor.
technical scheme of the present invention is as follows:
Organic rice implantation methods of the present invention, comprises the following steps:
(1) rice seed bag is fertile processes: select rice seed organic or that processed without banned substance, fine day was basked seeds after 3～5 days, adopts coated fertilizer to do kind of dressing or wet kind of dressing to rice seed, and seed manure dressing ratio is: 35～50:1.
Select organic rice seed or the conventional seed processed without banned substance, concrete kind can be: Jin You 463, strain two are excellent 4024, five Feng You 308, spy are excellent 63, T78 is excellent 2155, win excellent 253.Select kind should follow local soil and climatic characteristic, selection damage by disease and insect is had the kind of resistance, in the selection of kind, should take into full account the genetic diversity of cover crop.
The weight of described coated fertilizer consists of: 1～10 part of marine algae extract, and 5～8 parts of borates, 15～25 parts, rock phosphate, 10～20 parts of magnesium slags, 10～20 parts of potassium breezes, 20～45 parts of cyclodextrin, 5～8 parts of humus, surplus is starch.
The preparation method of described coated fertilizer: by borate, rock phosphate, magnesium slag and the coarse crushing of potassium breeze, be ground to 80～100 orders, then add according to the above ratio other component, be crushed to fineness 400～500 orders through airslide disintegrating mill, to obtain final product.
Described marine algae extract preparation method: collect marine algae material, add water, ultrasonication, after making beating, low whipping speed is under 60～80 revs/min, to soak 20～25 days, obtains water extract, suction filtration, dry, pulverize, and to obtain final product.
Described starch comprises corn starch, tapioca, potato starch etc.
(2) grow seedlings: seeding and seedling raising after seed treatment, mu sowing 4.5 ~ 6kg, after planting uses plastic mulching, for insulation and maintenance soil moisture content.
(3) fertilising, dispenser: select suitable field, first extensive cultivation one time, using the fertilizer of medicine carrying is 1000～2000kg/ mu for base manure mu at rice plantation previous crops; Then in the time that tillering, rice imposes 50～100kg/ mu; In the time that rice is eared, impose again 50～100kg/ mu, and spray marine alga foliage fertilizer aqua 1～2 time.
Described medicine carrying fertilizer Chinese medicine is fertile, and than being 12～20:80～88, wherein medicine carrying composition comes from natural source material, consists of matrine, Herba Menthae powder, lime, white muscardine fungi, and ratio is 1:5:2:7.Described Herba Menthae powder is the material that plant peppermint (Mentha canadensis) is extracted, and described matrine is the material that plant kuh-seng (Sophorae Flavescentis Radix) extracts.
Described white muscardine fungi (Beauveria bassiana) pulvis quality control is: the spore 9,000,000,000/g that on average lives, and allowable fluctuation range 85～12,000,000,000/g, spore germination rate is more than 95%, and moisture is below 3%.
Described fertilizer is the thing that becomes thoroughly decomposed of manioc waste, filter mud of sugarcane, sea grass, chicken manure, skin of beancurd, peanut shell, and its proportion of composing is: 5:5:2:4:3:3; Take according to the above ratio rear mixing, become thoroughly decomposed, be dried, pulverize, to obtain final product.
Described medicine carrying preparation method of organic fertilizer is: after natural source farm chemical ingredients is mixed in proportion, mix with fertilizer again, pulverize granulation and get final product.
Described marine alga foliage fertilizer preparation method is: marine alga water extract in step (1) is added to chitosan and water, and stirring and dissolving, to obtain final product, and component ratio is: 30～50 parts of marine alga water extracts, and 2～10 parts of chitosans, water is supplied 100 parts, for subsequent use.The molecular weight of described chitosan is 10000-100000.
(4) water layer management: rice seedling after transplanting, follow " period of seedling establishment deep water, tillering stage shallow water, breeding time intermittent irrigation and shine day, fringe after date water conservation again " principle.
Described dry-method coating is: coated fertilizer and natural mineral water are diluted for suspension 1:2～5 in proportion, and concrete grammar is with little watering can, the suspension preparing to be sprayed onto in rice kind, and stir on spray limit, limit, until mix thoroughly, then carries out vernalization.
Described wet method dressing is: first by 35～37 ℃ of emerge in worm water vernalization in 24～30 hours for rice kind, after the broken chest of seed shows money or valuables one carries unintentionally, dress seed with coated fertilizer, when seed dressing, seed should keep moistening, add after coated fertilizer, stir back and forth, fully mix thoroughly, make it to be evenly attached to the surface of the seed, place seeding and seedling raising after half an hour.
The fertilizer base manure using method of described medicine carrying is: dig in more dry rice field the shallow ridges being arranged in parallel, ditch depth is 10～20cm approximately, and medicine carrying fertilizer is applied in ditch, then blinding or mud, poured water after 20 days, approximately 5～10cm of water layer height, after water conservation 5 days, rotary tillage, rakes.
The fertilizer of the described medicine carrying using method of topdressing is: first 3～5 days of rice plant of tillering stage and heading, evenly spread fertilizer over the fields medicine carrying fertilizer, if field has water conservation 7～10 days of water, if field lack of water need to pour water after water conservation.
The spray method of described marine alga foliage fertilizer is: 300～500 times of dilute with waters, and select fine day to execute without rainy day gas blowout, spray and in latter 4 hours, meet rain and fill spray once.
Described period of seedling establishment deep water refers to after rice transplanting is transplanted to keeping the paddy field degree of depth between period of seedling establishment, but should not have the seedling heart to be as the criterion; Shallow water referred to and kept shoaling layer in tillering stage described tillering stage, and the general depth of water is advisable with 3～5cm; Described breeding time intermittent irrigation and dry field referred to before paddy rice enters the later stage heading of tillering will be take dry field and intermittent irrigation as main, irrigate relief it naturally oozes after dry and irrigates at every turn; Described fringe after date again water conservation refers to water conservation after rice sword-like leave grows, and keeps profundal zone, later intermittent irrigation.
The planting process of organic rice meets State Standard of the People's Republic of China GB/T19630.1～19630.4-2005.
beneficial effect of the present invention is:
1, emerge neat, complete, strong.After using seed pelleting fertilizer of the present invention to rice seed Cotton seeds, can obviously improve seed quality, several nutrition compositions wherein not only can provide seed required nutriment, the also tool effect of seed anti-adversity ability that is significantly improved, make it fully absorb organic and other nutrient in soil, rice seed after processing, fertilizer conservation is emerged obviously neat, well developed root system.
2, the fertile same use of medicine, damage by disease and insect alleviates.In the process of manure use; select nontoxic, natural pest-resistant Fungicidal substance to apply together with fertilizer underground, in rice growth process, can play a protective role, recurrent rice fulgorid, Pomacea canaliculata, various germ are difficult to encroach on crop; reduce medication number of times, improve quality.
3, the fertile treatment process of rice seed bag is simple, easy to operate.The coated fertilizer adopting is 400～500 mu, has two kinds of modes of dry method and wet method dressing, simple to operate, easily grasps; Fertilizer conservation processes germination to rice seed, survive etc. plays a very good protection.
4, organic fertilizer formula is reasonable, and source is abundant.The fertilizer that in the present invention, organic rice plantation is used comes from the processed fertilizer such as cassava, sugarcane of Guangxi establishing in large scale, and raw material is easy to get, easy to process.
5, fertilizer obviously improves rice growing way, balanced in nutrition.The thing that becomes thoroughly decomposed that contains manioc waste, filter mud of sugarcane, sea grass, chicken manure, skin of beancurd, peanut shell in this fertilizer, is rich in nitrogen-fixing microorganism, makes spontaneous nitrogenous fertilizer abundance in soil, not de-fertile within whole vegetative period, grows fine.
6, rice blade is black green, and photosynthesis is strong.The spraying of use marine algae extract, can improve the absorption of rice blade for various nutrient elements, and as potassium, boron etc., blade growing way is good, and color is black green, and the power that absorbs solar energy is strong, and photosynthesis is strong, and synthetic nutrition physical efficiency is high.
7, improve rice immunity, high-output stress-resistance.Marine algae extract not only can promote blade Determination of Chlorophyll photosynthesis, can also obviously improve the abilities such as drought resisting Resistant.
8, promote root system development, absorb nutrient ability and strengthen.
9, Rice Kernel is full, and not plump shell rate is low.
10, rice mouthfeel is good, and nutrition content is high.In whole growth cycle, forbidding chemical pesticide and chemical fertilizer, use natural anthelmintic substance and fertilizer completely, and the Macro and microelements containing in fertilizer can be absorbed by crops, promotes quality.
11, effect of increasing production is obvious.With respect to the rice of conventional method plantation, the rice per mu yield that the inventive method is produced on average improves more than 15%, and yield increase effect is obvious.
Specific embodiment
embodiment 1
Organic rice implantation methods of the present invention, specifically comprises the following steps:
(1) rice seed bag is fertile processes: the rice seed gold excellent 463 of processing without banned substance, fine day was basked seeds after 3～5 days, by coated fertilizer and natural mineral water in proportion 1:5 dilution be suspension, the suspension preparing is sprayed onto in rice kind with little watering can, stir on spray limit, limit, until mix thoroughly, then carry out vernalization.
The preparation method of described coated fertilizer: first prepare marine algae extract, collect marine algae material, add water, ultrasonication, after making beating, low whipping speed is under 80 revs/min, to soak 25 days, obtains water extract, suction filtration, dry, pulverize, and to obtain final product; By breeze coarse crushing, be ground to 80～100 orders, according to marine algae extract 50kg, borate 70kg, rock phosphate 200kg, potassium breeze 200kg, magnesium slag 200kg, cyclodextrin 250kg, humic acid 60kg, corn starch fully mixes after supplying 1000kg, be crushed to fineness 400～500 orders through airslide disintegrating mill, obtain final product.
(2) grow seedlings: seeding and seedling raising after seed treatment, mu sowing 15kg, after planting uses plastic mulching, for insulation and maintenance soil moisture content.
(3) shoot transplanting equipment: transplant in the time that rice shoot height is 8～10cm, transplanting time is separated with order, line space is 10cm, spacing in the rows is 3cm, balled transplanting.
(4) wholely, fertilising: select suitable field, first extensive cultivation one time, digs in more dry rice field the shallow ridges being arranged in parallel, ditch depth is 10～20cm approximately, and medicine carrying fertilizer 2000kg is applied in ditch, and then blinding or mud, poured water after 20 days, approximately 5～10cm of water layer height, water conservation is after 5 days, rotary tillage; First 3～5 days of rice plant of tillering stage and heading, evenly spread fertilizer over the fields respectively medicine carrying fertilizer 100kg, if field has water conservation 7～10 days of water, if field lack of water need to pour water after water conservation; Spray marine alga foliage fertilizer aqua 2 times at heading stage, 300～500 times of dilute with waters, select fine day to execute without rainy day gas blowout, spray and in latter 4 hours, meet rain and fill spray once.
Medicine carrying preparation method of organic fertilizer is: first prepare medicine carrying composition, by matrine, Herba Menthae powder, lime, white muscardine fungi, ratio is that 1:5:2:7 accurately weighs total amount 100kg, mixes rear pulverizing, for subsequent use; Prepare again fertilizer, manioc waste, filter mud of sugarcane, sea grass, chicken manure, skin of beancurd, peanut skin are taken to rear mixing, become thoroughly decomposed, are dried, pulverize by proportion of composing 5:5:2:4:3:3, to obtain final product; Finally natural source farm chemical ingredients is mixed according to 20:80 ratio with fertilizer again, pulverize granulation and get final product.
Wherein the quality control of white muscardine fungi pulvis is: the spore 9,000,000,000/g that on average lives, and allowable fluctuation range 85～12,000,000,000/g, spore germination rate is more than 95%, and moisture is below 3%.
Marine alga foliage fertilizer preparation method is: by 50 parts of marine alga water extracts in step (1), add 30 parts of chitosans (molecular weight 10,000-100,000), add water and supply 100 parts, fully stirring and dissolving, to obtain final product.
During rice growth, rationally control moisture, after rice transplanting is transplanted, to keeping the paddy field degree of depth between period of seedling establishment, but should not have the seedling heart to be as the criterion; Keep shoaling layer in tillering stage, the general depth of water is advisable with 3～5cm; Will be take dry field and intermittent irrigation as main before paddy rice enters the later stage heading of tillering, irrigate relief it naturally oozes after dry and irrigates at every turn; Water conservation after rice sword-like leave grows, and keep profundal zone, later intermittent irrigation.
The organic rice comparison more solito rice plantation field volume increase 23% of producing by above inventive embodiments implantation methods, and rice has been carried out to national sector standard detection, the accurate heavy metal and pesticide remnant that detects of national standard requires all to meet respective standard.
embodiment 2organic rice of the present invention in process of growth damage by disease and insect a situation arises
embodiment 3the rice outward appearance of organic rice implantation methods of the present invention plantation, mouthfeel are significantly better than common rice
embodiment 4the sanitary index of the rice of organic rice implantation methods plantation of the present invention
According to the agricultural industry criteria NY/T419-2007 of the People's Republic of China (PRC), a kind of rice of planting of the embodiment of the present invention is detected, result is as shown in the table:
Claims (8)
1. an organic rice implantation methods, is characterized in that: comprise the following steps:
(1) rice seed bag is fertile processes: select rice seed organic or that processed without banned substance, fine day was basked seeds after 3～5 days, adopts coated fertilizer to do kind of dressing or wet kind of dressing to rice seed, and seed manure dressing ratio is: 35～50:1;
The weight of described coated fertilizer consists of: 1～10 part of marine algae extract, and 5～8 parts of borates, 15～25 parts, rock phosphate, 10～20 parts of magnesium slags, 10～20 parts of potassium breezes, 20～45 parts of cyclodextrin, 5～8 parts of humus, surplus is starch;
The preparation method of described coated fertilizer: by rock phosphate, magnesium slag and the coarse crushing of potassium breeze, be ground to 80～100 orders, then add according to the above ratio other component, be crushed to fineness 400～500 orders through airslide disintegrating mill, to obtain final product;
Described marine algae extract preparation method: collect marine algae material, add water, ultrasonication, after making beating, low whipping speed is under 60～80 revs/min, to soak 20～25 days, obtains water extract, suction filtration, dry, pulverize, and to obtain final product;
(2) grow seedlings: seeding and seedling raising after seed treatment, mu sowing 4.5 ~ 6kg, after planting uses plastic mulching, for insulation and maintenance soil moisture content;
(3) fertilising, dispenser: select suitable field, first extensive cultivation one time, using the fertilizer of medicine carrying is 1000～2000kg/ mu for base manure mu at rice plantation previous crops; Then in the time that tillering, rice imposes 50～100kg/ mu; In the time that rice is eared, impose again 50～100kg/ mu, and spray marine alga foliage fertilizer aqua 1～2 time;
(4) water layer management: rice seedling after transplanting, follow " period of seedling establishment deep water, tillering stage shallow water, breeding time intermittent irrigation and shine day, fringe after date water conservation again " principle.
2. organic rice implantation methods according to claim 1, it is characterized in that: described medicine carrying fertilizer Chinese medicine is fertile in being 12～20:80～88, wherein medicine carrying composition comes from natural source material, consists of matrine, Herba Menthae powder, lime, white muscardine fungi, and ratio is 1:5:2:7;
The quality control of described white muscardine fungi pulvis is: the spore 9,000,000,000/g that on average lives, and allowable fluctuation range 85～12,000,000,000/g, spore germination rate is more than 95%, and moisture is below 3%;
Described fertilizer is the thing that becomes thoroughly decomposed of manioc waste, filter mud of sugarcane, sea grass, chicken manure, skin of beancurd, peanut skin, and its proportion of composing is: 5:5:2:4:3:3; Take according to the above ratio rear mixing, become thoroughly decomposed, be dried, pulverize, to obtain final product;
Described medicine carrying preparation method of organic fertilizer is: after natural source farm chemical ingredients is mixed in proportion, mix with fertilizer again, pulverize granulation and get final product;
Described marine alga foliage fertilizer preparation method is: marine alga water extract in step (1) is added to chitosan and water, and stirring and dissolving, to obtain final product, and component ratio is: 30～50 parts of marine alga water extracts, and 2～10 parts of chitosans, water is supplied 100 parts, for subsequent use;
The molecular weight of described chitosan is 10000-100000.
3. organic rice implantation methods according to claim 1, it is characterized in that: described dry-method coating is: coated fertilizer and natural mineral water are diluted for suspension 1:2～5 in proportion, concrete grammar is with little watering can, the suspension preparing to be sprayed onto in rice kind, stir on spray limit, limit, until mix thoroughly, then carry out vernalization.
4. organic rice implantation methods according to claim 1, it is characterized in that: described wet method dressing is: first by the vernalization in 24～30 hours of 35～37 ℃ of emerge in worm water of rice kind, after the broken chest of seed shows money or valuables one carries unintentionally, dress seed with coated fertilizer, when seed dressing, seed should keep moistening, adds after coated fertilizer, stir back and forth, fully mix thoroughly, make it to be evenly attached to the surface of the seed, place seeding and seedling raising after half an hour.
5. organic rice implantation methods according to claim 1, it is characterized in that: the fertilizer base manure using method of described medicine carrying is: dig in more dry rice field the shallow ridges being arranged in parallel, ditch depth is 10～20cm approximately, medicine carrying fertilizer is applied in ditch, and then blinding or mud, poured water after 20 days, approximately 5～10cm of water layer height, after water conservation 5 days, rotary tillage, rakes.
6. organic rice implantation methods according to claim 1, it is characterized in that: the fertilizer of the described medicine carrying using method of topdressing is: first 3～5 days of rice plant of tillering stage and heading, evenly spread fertilizer over the fields medicine carrying fertilizer, if field has water conservation 7～10 days of water, if field lack of water need to pour water after water conservation.
7. according to the organic rice implantation methods described in claims 1, it is characterized in that: the spray method of described marine alga foliage fertilizer is: 300～500 times of dilute with waters, select fine day to execute without rainy day gas blowout, spray and in latter 4 hours, meet rain and fill spray once.
8. according to the organic rice implantation methods described in claims 1, it is characterized in that: described period of seedling establishment deep water refers to after rice transplanting is transplanted to keeping the paddy field degree of depth between period of seedling establishment, but should not have the seedling heart to be as the criterion; Shallow water referred to and kept shoaling layer in tillering stage described tillering stage, and the general depth of water is advisable with 3～5cm; Described breeding time intermittent irrigation and dry field referred to before paddy rice enters the later stage heading of tillering will be take dry field and intermittent irrigation as main, irrigate relief it naturally oozes after dry and irrigates at every turn; Described fringe after date again water conservation refers to water conservation after rice sword-like leave grows, and keeps profundal zone, later intermittent irrigation.
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| CN104642030A (en) * | 2015-02-06 | 2015-05-27 | 长沙市望城区文国良生态农业有限公司 | High-yield planting method of organic rice |
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| CN109251086A (en) * | 2018-10-18 | 2019-01-22 | 中国农业大学 | A kind of clover drought resistant seed coating agent and its application |
| CN109251086B (en) * | 2018-10-18 | 2021-12-10 | 中国农业大学 | Alfalfa drought-resistant seed coating agent and application thereof |
| CN109328980A (en) * | 2018-10-23 | 2019-02-15 | 桃江县夷希微农业开发有限公司 | Arviculture composition and application |
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