CN102870585A - Method for floating breeding of cabbage seedling - Google Patents

Method for floating breeding of cabbage seedling Download PDF

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Publication number
CN102870585A
CN102870585A CN2012104147275A CN201210414727A CN102870585A CN 102870585 A CN102870585 A CN 102870585A CN 2012104147275 A CN2012104147275 A CN 2012104147275A CN 201210414727 A CN201210414727 A CN 201210414727A CN 102870585 A CN102870585 A CN 102870585A
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China
Prior art keywords
seedling
matrix
seedlings
cabbage
cultivating tray
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CN2012104147275A
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CN102870585B (en
Inventor
王神云
刘勇
李建斌
王红
于利
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Jiangsu Kangrun Agriculture Technology Development Co ltd
Jiangsu Academy of Agricultural Sciences
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Jiangsu Kangrun Agriculture Technology Development Co ltd
Jiangsu Academy of Agricultural Sciences
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Priority to CN201210414727.5A priority Critical patent/CN102870585B/en
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    • Y02P60/216

Abstract

The invention discloses a method for breeding of cabbage seedlings. An artificially prepared substrate is adopted to breed cabbage seedlings in a rainproof greenhouse, harm of diseases, pests and weeds which can be spread in soil can be avoided, various effects on the cabbage seedlings caused by difficult-to-control defects of physical and chemical properties of soil can be eliminated completely, normal growth of the cabbage seedlings can be ensured, environmental conditions of the nutrients, temperature, moisture and light required for growth of the cabbage seedlings can better provided, adverse effects of dramatic changes in the environmental conditions on the seedling breeding process can be avoided, smooth breeding of the cabbage seedlings can be ensured, and commercialized and intensified scale production of the cabbage seedlings can be realized. Large quantities of uniform, delicate, disease-free and robust cabbage seedlings can be cultivated in a short term, the breeding period of the seedlings can be shortened, the uniformity of transplanted seedlings can be improved, concentrated transplanting of the cabbage seedlings in a contiguous region in the best seasons can be ensured, the consistency and uniformity of growth of cabbage plants can be improved, and a good foundation can be laid for balanced and efficient production of cabbages.

Description

A kind of method of wild cabbage floating seedlings
Technical field
The invention belongs to wild cabbage seedling growing process field, relate in particular to a kind of method of wild cabbage floating seedlings.
Background technology
Existing wild cabbage seedling-cultivating method can't break away from the constraint of soil and the undesirable element of extraneous natural conditions, because soil passes disease, the worm of band, the harm of weeds, very easily causing grows seedlings damage by disease and insect occurs, root system is undeveloped, regularity is low, and resistance is poor, and it is slow that seedling is returned in transplanting, survival rate is low, and economic benefit is not obvious.
Summary of the invention
The invention provides a kind of method of wild cabbage floating seedlings, be intended to solve existing wild cabbage seedling-cultivating method and can't have broken away from the constraint of soil and the undesirable element of extraneous natural conditions, because soil passes disease, the worm of band, the harm of weeds, very easily causing grows seedlings damage by disease and insect occurs, and root system is undeveloped, and regularity is low, resistance is poor, it is slow that seedling is returned in transplanting, and survival rate is low, the unconspicuous problem of economic benefit.
The object of the present invention is to provide a kind of method of wild cabbage floating seedlings, the method may further comprise the steps:
Step 1 take the peat composed of rotten mosses, plant straw, expanded perlite and vermiculite as raw material, consists of matrix according to certain proportioning;
Step 2 adopts polystyrene foam plastics to make seedling-cultivating tray, and matrix is contained in the seedling-cultivating tray;
Step 3, configuration contain the nutrient solution of trace element in nitrogen, phosphorus, potassium and the part;
Step 4 selects the overall width of the actual seedling-cultivating tray of putting into of Width slightly wide 2~4 centimetres, and the actual total length of putting into seedling-cultivating tray of Length Ratio is grown 3~8 centimetres nursery pond, and at the rainproof seedling growth greenhouse of nursery pond configuration;
Step 5 in the matrix of capsuled seed sowing in seedling-cultivating tray, and is placed the nutrient solution that configures in the step 3 in nursery pond;
Step 6, humidity in the control canopy, final singling and thinning, white silk seedling are prevented and treated physiological disturbance and pest control;
Step 7 sprayed metalaxyl 1 time in front 3 days in transplanting, can transplant.
Further, in step 1, to the quality requirement of matrix be: the matrix particle diameter is even, and 1-5mm particle diameter proportion is greater than 50%; The porosity scope is 70%~90%; The pH value is 5.0~6.8; Electrical conductivity is at 150~800 μ s/cm.Be 20-32 ℃ in temperature, 3 days emergence rates are reached more than 85%; The fast growth of growing seedlings.
Further, in step 2, seedling-cultivating tray is generally the 200 hole standard plates of 34cm*68cm.
Further, in step 2, when containing matrix in the seedling-cultivating tray, at first matrix is sprayed water moistening, then matrix is placed on the card of growing seedlings, with plank matrix is evenly pushed away people's seedling cave, 2~3 times so repeatedly, make the matrix loadings uniformity in each seedling cave.
Further, in step 4, the nursery pond degree of depth is generally 15-20 centimetre, rainproof seedling growth greenhouse should adopt the north-south, by frame, the canopy film, the ventilation window forms, general wide 6-8 rice, high 2.4-2.7 rice, length determines with grow seedlings quantity and landform, generally between 50-100 rice, frame is by steel pipe; the light-duty pipe of thin-walled or high-intensity composite are made, and the canopy film selects thick 0.07 millimeter plastic membrane of polyvinyl chloride or nothing to drip a long-lived film; vent window is established in the booth both sides; vent window height overhead is 0.5-1 rice, and door is positioned at the booth two ends, and is high about 2 meters; that wide 1-2 rice, the ventilation door and window is provided with the insect protected nylon wire.Use the film-pressing line press mold parallel with bow member to fix on the canopy.
Further, seedling growth greenhouse is provided with fly net and sunshade net.
Further, in step 5, with in the capsuled seed sowing matrix in seedling-cultivating tray the time, with the dark vesicle of 2mm of special acupoint pressing plate extrusion neat and consistent, 1 capsuled seed of every bunch planting is broadcast rear covering matrix 2mm in the center in each seedling cave.
The method that wild cabbage provided by the invention is grown seedlings, adopt the matrix of artificial preparation to cultivate cabbage seedling, avoided soilborne disease, worm, weeds harm, thoroughly broken away from because the various impacts that the defective of artificial unmanageable soil physico-chemical property aspect causes cabbage seedling, guaranteed the normal growth of cabbage seedling, can provide preferably the cabbage seedling growth required nutrition, temperature, moisture, the photoenvironment condition, the harmful effect of having avoided the environmental condition acute variation that seedling raising process is produced, guaranteed carrying out smoothly of cabbage seedling cultivation, commercialization and intensive large-scale production that wild cabbage is grown seedlings have been realized, can cultivate neat and consistent in enormous quantities, delicate and pretty anosis healthy and strong cabbage seedling, shortened nursery stage, increase the regularity of transplanted seedling, transplanting speed has obtained larger raising, guaranteed that in flakes cabbage plant can be concentrated transplantings in the district in the best climate and other natural phenomena of a season, improved uniformity and the uniformity of plant strain growth, for the interior wild cabbage in zone in flakes efficiently, balanced production is laid a good foundation.
Description of drawings
Fig. 1 is the realization flow figure of the method for the wild cabbage floating seedlings that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further described in detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in and limit invention.
Fig. 1 shows the realization flow of the method for the wild cabbage floating seedlings that the embodiment of the invention provides.
The method may further comprise the steps:
Step S101 take the peat composed of rotten mosses, plant straw, expanded perlite and vermiculite as raw material, consists of matrix according to certain proportioning;
Step S102 adopts polystyrene foam plastics to make seedling-cultivating tray, and matrix is contained in the seedling-cultivating tray;
Step S103, configuration contains the nutrient solution of trace element in nitrogen, phosphorus, potassium and the part;
Step S104 selects the overall width of the actual seedling-cultivating tray of putting into of Width slightly wide 2~4 centimetres, and the actual total length of putting into seedling-cultivating tray of Length Ratio is grown 3~8 centimetres nursery pond, and configures seedling growth greenhouse at nursery pond;
Step S105 in the matrix of capsuled seed sowing in seedling-cultivating tray, and places in nursery pond and sprays the nutrient solution that configures among the step S103;
Step S106, humidity in the control canopy, final singling and thinning, forging seedling are prevented and treated physiological disturbance and pest control;
Step S107 sprayed metalaxyl 1 time in front 3 days in transplanting, can transplant.
In embodiments of the present invention, in step S101, to the quality requirement of matrix be: the matrix particle diameter is even, and 1-5mm particle diameter proportion is greater than 50%; The porosity scope is 70%~90%; The pH value is 5.0~6.8; Electrical conductivity is at 150~800 μ s/cm; Be 20-32 ℃ in temperature, 3 days emergence rates are reached more than 85%; The fast growth of growing seedlings.。
In embodiments of the present invention, in step S102, seedling-cultivating tray is generally the 200 hole standard plates of 34cm*68cm.
In embodiments of the present invention, in step S102, when containing matrix in the seedling-cultivating tray, at first matrix is sprayed water moistening, then matrix is placed on the card of growing seedlings, with plank matrix is evenly pushed away people's seedling cave, 2~3 times so repeatedly, make the matrix loadings uniformity in each seedling cave.
In embodiments of the present invention, in step S104, the nursery pond degree of depth is generally 15-20 centimetre, rainproof seedling growth greenhouse should adopt the north-south, by frame, the canopy film, the ventilation window forms, general wide 6-8 rice, high 2.4-2.7 rice, length determines with grow seedlings quantity and landform, generally between 50-100 rice, frame is by steel pipe; the light-duty pipe of thin-walled or high-intensity composite are made, and the canopy film selects thick 0.07 millimeter plastic membrane of polyvinyl chloride or nothing to drip a long-lived film; vent window is established in the booth both sides; vent window height overhead is 0.5-1 rice, and door is positioned at the booth two ends, and is high about 2 meters; that wide 1-2 rice, the ventilation door and window is provided with the insect protected nylon wire.Use the film-pressing line press mold parallel with bow member to fix on the canopy.
In embodiments of the present invention, seedling growth greenhouse is provided with fly net and sunshade net.
In embodiments of the present invention, in step S105, with in the capsuled seed sowing matrix in seedling-cultivating tray the time, with the dark vesicle of 2mm of special acupoint pressing plate extrusion neat and consistent, 1 capsuled seed of every bunch planting is broadcast rear covering matrix 2mm.
Below in conjunction with drawings and the specific embodiments application principle of the present invention is further described.
Whether select matrix, matrix is the core of floating seedlings, grow seedlings successful, and is crucial in matrix.The base stock of the employed matrix of our province is the peat composed of rotten mosses, plant straw, expanded perlite and vermiculite, and the different proportionings of these raw materials have formed matrix.Matrix plays set cabbage seedling root system, and provides the part nutriment to support the effect of cabbage seedling growth.Require one to be that the matrix particle diameter is even to the matrix quality, 1-5mm particle diameter proportion is greater than 50%, the 2nd, the porosity scope is 70%~90%, and the 3rd, pH value is 5.0~6.8, and the 4th, electrical conductivity (EC value) 150~800 μ s/cm (reading every centimetre of little Siemens); The 5th, can guarantee to be 20-32 ℃ in temperature, 3 days emergence rates are reached more than 85%; The fast growth of growing seedlings.The 6th, fast growth.
Make seedling-cultivating tray, seedling-cultivating tray is made by polystyrene foam plastics, and it plays and contains matrix, makes matrix and cabbage seedling swim in the epontic effect of nutrient solution.The seedling-cultivating tray that uses is generally 200 holes.
The configuration nutrient solution, the cabbage seedling desired nutritional composition overwhelming majority is supplied with by nutrient solution in the floating seedlings.Theoretically, should comprise whole elements that plant growth is required in the nutrient solution, it is so-called pancebrin, but because many elements such as the cabbage seedling requirements such as molybdenum, manganese are few, organic part in the matrix (careless carbon, straw) can satisfy substantially, therefore, as long as contain trace element in nitrogen, phosphorus, potassium and the part in the nutrient solution.
Select nursery pond and seedling growth greenhouse, general about 20 centimetres of the nursery pond degree of depth, long and wide according to the place with seedling-cultivating tray is big or small decides.The overall width of the actual seedling-cultivating tray of putting into of Width of general nursery pond is slightly wide 2~4 centimetres, and the actual total length of putting into seedling-cultivating tray of Length Ratio is grown 3~8 centimetres, is beneficial to picking and placeing of seedling-cultivating tray.Plastic tunnel should adopt the north-south, and booth is comprised of frame, canopy film, ventilation window etc., general wide 6-8 rice (canopy of bamboo-wood structure is wide to be generally 3.6 meters), and high 2.4-2.7 rice, grow seedlings quantity and landform of personal attendant determines.
Uniformity is wanted in sabot, the degree of tightness appropriateness.At first matrix is sprayed water before the sabot moistening, then matrix is placed on the card, with plank matrix is evenly pushed away people's seedling cave, 2~3 times so repeatedly, make the matrix loadings uniformity in each seedling cave, fill rear light pier seedling dish, make the matrix tightness moderate.
Extrude an approximately dark vesicle of 2mm in the center in each seedling cave after the sabot, extrude the vesicle of neat and consistent with special acupoint pressing plate.1 capsuled seed of every bunch planting is broadcast rear water spray and is promoted the seed cracking, then covers about matrix 2mm.
According to the quantity of the seedling of planting in the seedling-cultivating tray, spray uniformly the nutrient solution that configures.
Seedling management mainly comprises the management of temp. and humidity in the canopy, and final singling and thinning are forged seedling, physiological disturbance and control, pest control etc.
Cabbage seedling is transplanted and aftermath, in order to improve the cabbage seedling resistance, prevents that black stem from occuring, and can spray metalaxyl 1 time in front 3 days in transplanting, then can transplant.After cabbage seedling was transplanted, with withdrawals such as seedling dish, plastic film, frames, clear water was rinsed well, deposits for subsequent use as early as possible.Floating plate should be specifically noted that and is put in without plague of rats part, with anti-tamper.
A kind of wild cabbage floating seedlings mode in this example mainly may further comprise the steps:
The first step, selection matrix.Whether matrix is the core of floating seedlings, grow seedlings successful, and is crucial in matrix.The base stock of the employed matrix of our province is the peat composed of rotten mosses, plant straw, expanded perlite and vermiculite, and the different proportionings of these raw materials have formed matrix.Matrix plays set cabbage seedling root system, and provides the part nutriment to support the effect of cabbage seedling growth.Require one to be that the matrix particle diameter is even to the matrix quality, 1-5mm particle diameter proportion is greater than 50%, the 2nd, the porosity scope is 70%~90%, and the 3rd, pH value is 5.0~6.8, and the 4th, electrical conductivity (EC value) is 150~800 μ s/cm (reading every centimetre of little Siemens); The 5th, can guarantee to be 20-32 ℃ in temperature, 3 days emergence rates are reached more than 85%; The 6th, fast growth.
Second step, making seedling-cultivating tray.Seedling-cultivating tray is made by polystyrene foam plastics, and it plays and contains matrix, makes matrix and cabbage seedling swim in the epontic effect of nutrient solution.The seedling-cultivating tray that uses is generally 200 holes.
The 3rd step, configuration nutrient solution.The cabbage seedling desired nutritional composition overwhelming majority is supplied with by nutrient solution in the floating seedlings.Theoretically, should comprise whole elements that plant growth is required in the nutrient solution, it is so-called pancebrin, but because many elements such as the cabbage seedling requirements such as molybdenum, manganese are few, organic part in the matrix (careless carbon, straw) can satisfy substantially, therefore, as long as contain trace element in nitrogen, phosphorus, potassium and the part in the nutrient solution.
The 4th step, selection nursery pond and seedling growth greenhouse.General about 20 centimetres of the nursery pond degree of depth is long and wide according to the place with seedling-cultivating tray is big or small decides.The overall width of the actual seedling-cultivating tray of putting into of Width of general nursery pond is slightly wide 2~4 centimetres, and the actual total length of putting into seedling-cultivating tray of Length Ratio is grown 3~8 centimetres, is beneficial to picking and placeing of seedling-cultivating tray.Plastic tunnel should adopt the north-south, and booth is comprised of frame, canopy film, ventilation window etc., general wide 6-8 rice, and high 2.4-2.7 rice, grow seedlings quantity and landform of personal attendant determines.。
The 5th step, sabot.Uniformity is wanted in sabot, the degree of tightness appropriateness.At first matrix is sprayed water before the sabot moistening, then matrix is placed on the card, with plank matrix is evenly pushed away people's seedling cave, 2~3 times so repeatedly, make the matrix loadings uniformity in each seedling cave, fill rear light pier seedling dish, make the matrix tightness moderate.
The 6th step, sowing.Extrude an approximately dark vesicle of 2mm in the center in each seedling cave after the sabot, available finger-point pressure, also available special acupoint pressing plate extrudes the vesicle of neat and consistent.2 capsuled seeds of every bunch planting are broadcast rear water spray and are promoted the seed cracking, then cover about matrix 2mm.
The 7th step, sprinkling nutrient solution.According to the quantity of the seedling of planting in the seedling-cultivating tray, spray uniformly the nutrient solution that configures.
The 8th step, seedling management.Mainly comprise the management of temp. and humidity in the canopy, final singling and thinning are forged seedling, physiological disturbance and control, pest control etc.
The 9th step, cabbage seedling are transplanted and aftermath.In order to improve the cabbage seedling resistance, prevent that disease from occuring, can spray metalaxyl 1 time in front 3 days in transplanting, then can transplant.After the transplanting, with withdrawals such as seedling dish, plastic film, frames, clear water is rinsed well, deposits for subsequent use as early as possible.Floating plate should be specifically noted that and is put in without plague of rats part, with anti-tamper.
A kind of wild cabbage floating seedlings mode in this example, adopt the matrix of artificial preparation to cultivate cabbage seedling, can avoid soilborne disease, worm, weeds harm, thoroughly break away from because the various impacts that the defective of artificial unmanageable soil physico-chemical property aspect causes cabbage seedling, thereby guarantee the normal growth of cabbage seedling; The environmental conditions such as the required nutrition of cabbage seedling growth, temperature, moisture, illumination can be provided preferably, and the harmful effect of having avoided the environmental condition acute variation that seedling raising process is produced guarantees carrying out smoothly of cabbage seedling cultivation; Commercialization and intensive large-scale production that wild cabbage is grown seedlings have been realized, can cultivate neat and consistent in enormous quantities, delicate and pretty anosis healthy and strong cabbage seedling, shortened nursery stage, increase the regularity of transplanted seedling, transplanting speed has obtained larger raising, guaranteed that the interior cabbage plant in district can be concentrated transplanting in the best climate and other natural phenomena of a season in flakes, improved uniformity and the uniformity of plant strain growth, for efficient, the balanced production of the interior wild cabbage in zone are laid a good foundation in flakes.
The method that the wild cabbage that the embodiment of the invention provides is grown seedlings, adopt the matrix of artificial preparation to cultivate cabbage seedling, avoided soilborne disease, worm, weeds harm, thoroughly broken away from because the various impacts that the defective of artificial unmanageable soil physico-chemical property aspect causes cabbage seedling, guaranteed the normal growth of cabbage seedling, can provide preferably the cabbage seedling growth required nutrition, temperature, moisture, the photoenvironment condition, the harmful effect of having avoided the environmental condition acute variation that seedling raising process is produced, guaranteed carrying out smoothly of cabbage seedling cultivation, commercialization and intensive large-scale production that wild cabbage is grown seedlings have been realized, can cultivate neat and consistent in enormous quantities, delicate and pretty anosis healthy and strong cabbage seedling, shortened nursery stage, increase the regularity of transplanted seedling, transplanting speed has obtained larger raising, guaranteed that in flakes cabbage plant can be concentrated transplantings in the district in the best climate and other natural phenomena of a season, improved uniformity and the uniformity of plant strain growth, for the interior wild cabbage in zone in flakes efficiently, balanced production is laid a good foundation.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. the method for a wild cabbage floating seedlings is characterized in that, the method may further comprise the steps:
Step 1 take the peat composed of rotten mosses, plant straw, expanded perlite and vermiculite as raw material, consists of matrix according to certain proportioning;
Step 2 adopts polystyrene foam plastics to make seedling-cultivating tray, and matrix is contained in the seedling-cultivating tray;
Step 3, configuration contain the nutrient solution of trace element in nitrogen, phosphorus, potassium and the part;
Step 4 selects the overall width of the actual seedling-cultivating tray of putting into of Width slightly wide 2~4 centimetres, and the actual total length of putting into seedling-cultivating tray of Length Ratio is grown 3~8 centimetres nursery pond, and at the rainproof seedling growth greenhouse of nursery pond configuration;
Step 5 in the matrix of capsuled seed sowing in seedling-cultivating tray, and is placed the nutrient solution that configures in the step 3 in nursery pond;
Step 6, humidity in the control canopy, final singling and thinning, white silk seedling are prevented and treated physiological disturbance and pest control;
Step 7 sprayed metalaxyl 1 time in front 3 days in transplanting, can transplant.
2. the method for claim 1 is characterized in that, in step 1, to the quality requirement of matrix be: the matrix particle diameter is even, and 1-5mm particle diameter proportion is greater than 50%; The porosity scope is 70%~90%; The pH value is 5.0~6.8; Electrical conductivity is at 150~800 μ s/cm.Be 20-32 ℃ in temperature, 3 days emergence rates are reached more than 85%; The fast growth of growing seedlings.
3. the method for claim 1 is characterized in that, in step 2, seedling-cultivating tray is the 200 hole standard plates of 34cm*68cm.
4. the method for claim 1, it is characterized in that, in step 2, when containing matrix in the seedling-cultivating tray, at first matrix is sprayed water moistening, then matrix is placed on the card of growing seedlings, with plank matrix is evenly pushed away people's seedling cave, 2~3 times so repeatedly, make the matrix loadings uniformity in each seedling cave.
5. the method for claim 1, it is characterized in that, in step 4, the nursery pond degree of depth is generally 15-20 centimetre, and rainproof seedling growth greenhouse should adopt the north-south, formed by frame, canopy film, ventilation window, general wide 6-8 rice, high 2.4-2.7 rice, length determines with grow seedlings quantity and landform, generally between 50-100 rice;
Frame is made by steel pipe, the light-duty pipe of thin-walled or high-intensity composite, the canopy film selects thick 0.07 millimeter plastic membrane of polyvinyl chloride or nothing to drip a long-lived film, vent window is established in the booth both sides, vent window height overhead is 0.5-1 rice, door is positioned at the booth two ends, high about 2 meters, wide 1-2 rice, the ventilation door and window is provided with the insect protected nylon wire.Use the film-pressing line press mold parallel with bow member to fix on the canopy.
6. method as claimed in claim 5 is characterized in that, seedling growth greenhouse is provided with fly net and sunshade net.
7. the method for claim 1 is characterized in that, in step 5, with in the capsuled seed sowing matrix in seedling-cultivating tray the time, the center in each seedling cave is with the dark vesicle of 2mm of special acupoint pressing plate extrusion neat and consistent, 1 capsuled seed of every bunch planting is broadcast rear covering matrix 2mm.
CN201210414727.5A 2012-10-26 2012-10-26 Method for floating breeding of cabbage seedling Expired - Fee Related CN102870585B (en)

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CN107409718A (en) * 2017-08-23 2017-12-01 丁广礼 A kind of method of Gorgon fruit cultivation florescence high temperature-proof
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CN104541827A (en) * 2013-10-26 2015-04-29 林天国 Method for transplanting cabbage seedlings in awning
CN105210826A (en) * 2015-09-23 2016-01-06 陈启林 Floating seedlings culturing method
CN107409718A (en) * 2017-08-23 2017-12-01 丁广礼 A kind of method of Gorgon fruit cultivation florescence high temperature-proof
CN107484515A (en) * 2017-08-23 2017-12-19 丁广礼 A kind of method for extending Gorgon fruit productive phase
CN107548989A (en) * 2017-09-16 2018-01-09 云南农业大学 A kind of method of quinoa floating seedlings
CN107912289A (en) * 2017-11-14 2018-04-17 中国农业科学院麻类研究所 A kind of float seedling method of ramie
CN110278861A (en) * 2019-06-24 2019-09-27 张家港丰裕德农业科技有限公司 A kind of breeding method of collard

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