CN105693408A - Soilless culture nutrient solution for leafy vegetables and preparation method of soilless culture nutrient solution - Google Patents
Soilless culture nutrient solution for leafy vegetables and preparation method of soilless culture nutrient solution Download PDFInfo
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- CN105693408A CN105693408A CN201610216177.4A CN201610216177A CN105693408A CN 105693408 A CN105693408 A CN 105693408A CN 201610216177 A CN201610216177 A CN 201610216177A CN 105693408 A CN105693408 A CN 105693408A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/23—Solutions
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention provides a soilless culture nutrient solution for leaf vegetables and a preparation method of the soilless culture nutrient solution. The soilless culture nutrient solution is prepared from mother solutions A, B, C, D and E and is prepared into an early-stage field planting nutrient solution and a later-stage field planting nutrient solution according to requirement differences of different development stages of the leafy vegetables. The preparation method of the soilless culture nutrient solution comprises the following steps: preparing compound probiotics fermentation liquid; preparing the mother solutions A, B, C, D and E; and sequentially diluting the mother solutions into tap water in proportion, uniformly stirring, and correcting the pH, so as to obtain the soilless culture nutrient solution. The soilless culture nutrient solution meets requirements of the leafy vegetables in each growth and development stage to nutrient elements, the yield and the quality of the leafy vegetables are improved, furthermore, the immunity of the leafy vegetables is improved, and the occurrence rates of plant diseases and insect pests are decreased, so that the application of pesticides is reduced, the cost is lowered, and finally the economic benefit of vegetable farmers can be increased.
Description
Technical field
The present invention relates to a kind of leaf vegetables soilless culture nutrient fluid and compound method, be specifically related to a kind of make leaf vegetables volume increase, high-quality, the leaf vegetables soilless culture nutrient fluid of cost declining and compound method thereof, belong to technical field of agriculture science。
Background technology
Leaf vegetables refers to the vegetable that the tender blade of vegetable fertilizer, petiole are edible object, is called for short leaf vegetables。It is various in style, and some forms are common, such as Plantula Brassicae chinensis, Herba Spinaciae, Amaranthus mangostanus L. etc.；Some forms are relatively big, and lobus cardiacus obvolvent, such as Chinese cabbage, Caulis et Folium Brassicae capitatae etc.；What have then has the pungent local flavor of special perfume (or spice), such as Folium Allii tuberosi, Herba Apii graveolentis, Herba Alii fistulosi, Fructus Foeniculi etc.。According to statistics, edible leaf vegetables has kind more than 1000 in the world。China is the country that leaf vegetables produces that kind and kind are enriched the most, including the cabbage such as green vegetable, Chinese cabbage, the green vegetable classes such as Herba Spinaciae, Caulis et Folium Lactucae Sativae, Caulis et Folium Ipomoeae aquaticae, Herba Apii graveolentis, Amaranthus mangostanus L., the Caulis et Folium Brassicae capitatae class such as Brassica oleracea L.var.capitata L., cabbage mustard, also have the Herba Alii fistulosi Bulbus Allii classes such as Folium Allii tuberosi, garlic sprouts, Herba Alii fistulosi, chive, up to 230 kinds。
China's leaf vegetables cultivation history is long。Seeing in the relevant historical book of the Southern Dynasties describes, TAI HU AREA has occurred planting specially the vegetable grower of Chinese cabbage at that time。It is " taste wins most " person that the Zhou Yan that joins the army of Southern Dynasties Xiao Qi Changsha king once praise " early fragrant-flowered garlic at the beginning of the spring, evening autumn end ancient name for Chinese cabbage " highly before crown prince Wen Hui。Writer Zhang Hanwei official in Western Jin Dynasty Luoyang, because of " the Herba braseniaeel. thick soup, Lateolabrax japonicus (Cuvier et Va-lenciennes) (Lateolabracis) braised " at the Wuzhong that feels homesick, gives up one's office and gives order to drive a carriage and return。The Northern Wei Dynasty, agronomy monumental work Important Arts for the People's Welfare mentioned Chinese cabbage cultural method first, in its turnip (i.e. Radix Brassicae rapae) section, incidentally refer to " planting ancient name for Chinese cabbage, reed Fu (Radix Raphani) method "。Leaf vegetables presents green, yellow rich in chlorophyll, carotenoid, for human body inorganic salt, vitamin B, vitamin C, vitamin A main source, additionally, leaf vegetables also has stronger oxidation resistance。Therefore, leaf vegetables occupies extremely heavy status in daily life and agricultural production。
China is vegetable big producing country, is again vegetable consumption big country, and in China, vegetable is that except cereal crops, cultivated area is the widest, the most important crop of economic status。Within 2000, China's vegetable per unit area yield reaches 27828kg/hm2, year the vegetable volume of holding per capita be 326.23kg；Within 2004, growing vegetables area adds again 2,000,000 hm2, year the vegetable volume of holding per capita be 423.56kg；By 2014, national growing vegetables area reached 2128.9 ten thousand hm2。China's growing vegetables structure also there occurs change, is changed to profit evaluation model by scalar type gradually。In recent years, along with improving constantly of people's living standard, agricultural production develops from the simple high yield of pursuing in past to pursuit high yield, high-quality direction, and the cry of people's demand pollution-free food is more and more higher, and under this situation, soilless culture obtains and develops rapidly。
Soilless culture replaces soil environment with the crop root environment of artificial creation, except meeting the crop needs to mineral matter nutritional, moisture and oxygen, manually these environment can also be controlled by and adjust, so that no matter in quantity or be better than soil cultivation quality the product of its production；Soilless culture broken away from heavy in soil cultivation dig, whole furrow, the labout process such as weeding, and progressively achieve mechanization or automation mechanized operation in whole soilless culture produces, greatly reduce labor intensity, save labour force, improve labor efficiency；In addition, soilless culture is overcoming the accumulation of disease pest radix, soil secondary salinization in because of soil, soil physical and chemical property deterioration, the continuous cropping obstacle aspect that root system occurs in succession from toxicity secretion etc. has prominent effect, has the advantage that other many soil cultivations are incomparable。
Cultivation technique without soil is from the laboratory research of early stage large-scale application producing till now, and existing more than 100 year history, the countries and regions applying cultivation technique without soil at present in the world have reached more than 100。Soilless culture quickly grows in China, cultivation technique without soil has been carried out substantial amounts of test and discussion by numerous Research Centers production unit in one's power, for advancing the development of China's soilless culture cause to be made that extremely valuable research, but a lot of technology in China still in small-scale demonstration phase, than the development of external cultivation technique without soil also have quite poor from。The core technology of soilless culture is preparation and the management of nutritional solution, and also there is a big difference in China's leaf vegetables soilless culture more developed country, and leaf vegetables soilless culture yields poorly poor quality, greatly limit the development of cultivation technique without soil。
Summary of the invention
It is an object of the invention to provide a kind of leaf vegetables soilless culture nutrient fluid and preparation method, to meet the demand that leaf vegetables soilless culture produces。
To achieve these goals, technical scheme provided by the invention is:
A kind of leaf vegetables soilless culture nutrient fluid and compound method, it is characterised in that: this soilless culture nutrient fluid is formed by the allotment of A mother solution, B mother solution, C mother solution, D mother solution and E mother solution, and each mother solution is formulated by weight by following ingredients respectively:
A mother solution: ammonium nitrate 560-580, four water-calcium nitrate 220-230, potassium nitrate 200-210, potassium dihydrogen phosphate 60-70, Magnesium sulfate heptahydrate 235-255, ammonium humate 620-680, composite probiotics ferment liquid 2800-3200；
B mother solution: sodium iodide 0.18-0.22, boric acid 1.3-1.5, manganese sulfate 0.8-1.0, zinc sulfate 0.12-0.14, sodium molybdate 0.01-0.012, copper sulfate 0.045-0.055, cobaltous chloride 0.01-0.012, benzoic acid 0.2-0.3；
C mother solution: disodiumedetate 5.6-5.8, ferrous sulfate 4.4-4.6；
D mother solution: glycine 0.6-0.8, thiamine hydrochloride 0.09-0.11, pyridoxine hydrochloride 0.38-0.42, nicotinic acid 0.38-0.42；
E mother solution: naphthalene acetic acid 0.08-0.09, gibberellins 0.036-0.040, compound sodium nitrophenolate 6.0-6.4；
Described leaf vegetables soilless culture nutrient fluid is configured to two kinds of nutritional solutions according to the demand difference of leaf vegetables different growth phases:
(1) leaf vegetables field planting early stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, i.e. leaf vegetables field planting early stage nutrient composition content；
(2) leaf vegetables field planting later stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, then is multiplied by 2.0, i.e. leaf vegetables field planting later stage nutrient composition content。
In described A, B, C, D, E, F mother solution, the optimal proportion of each Parts by Ingredients is:
A mother solution: ammonium nitrate 570, four water-calcium nitrate 225, potassium nitrate 205, potassium dihydrogen phosphate 65, Magnesium sulfate heptahydrate 245, ammonium humate 650, composite probiotics ferment liquid 3000；
B mother solution: sodium iodide 0.2, boric acid 1.4, manganese sulfate 0.9, zinc sulfate 0.13, sodium molybdate 0.011, copper sulfate 0.05, cobaltous chloride 0.011, benzoic acid 0.25；
C mother solution: disodiumedetate 5.7, ferrous sulfate 4.5；
D mother solution: glycine 0.7, thiamine hydrochloride 0.1, pyridoxine hydrochloride 0.4, nicotinic acid 0.4；
E mother solution: naphthalene acetic acid 0.085, gibberellins 0.038, compound sodium nitrophenolate 6.2。
Compound method is as follows:
(1) before compounding, first being counted according to mg by the weight portion of A, B, C, D, E mother solution respectively, A and C mother solution prepares into A mother solution and C mother solution according to 100 times of concentration, and B, D and E mother solution prepares into B, D and E mother solution according to 1000 times of concentration, and C mother solution keeps in Dark Place；
(2) during compounding, respectively various mother solutions are diluted in tap water in proportion successively according to formula, stir and get final product；
(3) regulating pH: measure nutritional solution pH value with pH meter, correct nutritional solution pH with phosphoric acid or sodium hydroxide respectively and range for 6.2-7.0, the best is 6.6。
The preparation method step of described composite probiotics ferment liquid is as follows:
(1) according to CBM strain: brown sugar: liquor: vinegar: dispensing is mixed by the ratio that clean tap water weight ratio is 1:1:1:1:10, puts in plastic containers, seals；
(2) plastic containers are placed in the environment of 32-38 DEG C and ferment, open container test pH value after 5-9 days, if pH value is in 3.6 ~ 4.4, then shows to ferment successfully, otherwise continue sealing and fermenting；
(3) ferment after successfully, stir mixed material, take supernatant and namely obtain composite probiotics ferment liquid。
Described leaf vegetables setting date refers to trophophase when leaf vegetables true leaf occurs to true leaf 3, now selects leaf vegetables field planting early stage nutritional solution；The described leaf vegetables field planting later stage refers to that leaf vegetables true leaf 3 bores the trophophase starting to break up between bud to Stem nematode, now selects leaf vegetables field planting later stage nutritional solution。
The EC value of described tap water should be less than 0.1mS/cm。
Described liquor alcoholic strength should be greater than 30 degree。
Beneficial effects of the present invention
(1) soilless culture nutrient fluid of the present invention meets the leaf vegetables difference growth and development stage demand difference to nutrient, adds yield, improves quality；
(2) soilless culture nutrient fluid of the present invention can improve leaf vegetables immunity, decreases pest and disease damage incidence rate, thus greatly reducing spraying of pesticide, reduces cost, improves the economic well-being of workers and staff of vegetable grower；
(3) nutritional solution mother solution stores after preparing respectively, and physics present situation is stable, can place the long period, and avoids the phenomenons such as chemical reaction generation precipitation occurs in nutritional solution course of dissolution, and can directly take tap water during use is diluted, now with the current, simple and convenient。
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, and what the present invention did not specialize is routine techniques means。
Embodiment 1
The leaf vegetables soilless culture nutrient fluid of the preparation present invention, specifically comprises the following steps that
(1) composite probiotics ferment liquid is prepared:
A. according to CBM strain: brown sugar: liquor: vinegar: dispensing is mixed by the ratio that clean tap water weight ratio is 1:1:1:1:10, puts in plastic containers, seals；
B. plastic containers are placed in the environment of 32-38 DEG C and ferment, open container test pH value after 5-9 days, if pH value is in 3.6 ~ 4.4, then shows to ferment successfully, otherwise continue sealing and fermenting；
C. ferment after successfully, stir mixed material, take supernatant and namely obtain composite probiotics ferment liquid；
(2) preparation A, B, C, D, E mother solution:
According to the optimal proportion of the weight portion of each raw material in A, B, C, D, E mother solution in every 1 liter of nutritional solution:
A mother solution: ammonium nitrate 570, four water-calcium nitrate 225, potassium nitrate 205, potassium dihydrogen phosphate 65, Magnesium sulfate heptahydrate 245, ammonium humate 650, composite probiotics ferment liquid 3000；
B mother solution: sodium iodide 0.2, boric acid 1.4, manganese sulfate 0.9, zinc sulfate 0.13, sodium molybdate 0.011, copper sulfate 0.05, cobaltous chloride 0.011, benzoic acid 0.25；
C mother solution: disodiumedetate 5.7, ferrous sulfate 4.5；
D mother solution: glycine 0.7, thiamine hydrochloride 0.1, pyridoxine hydrochloride 0.4, nicotinic acid 0.4；
E mother solution: naphthalene acetic acid 0.085, gibberellins 0.038, compound sodium nitrophenolate 6.2；
Being counted according to mg by weight portion, A and C mother solution prepares into mother solution according to 100 times of concentration, and B, D and E mother solution prepares into mother solution according to 1000 times of concentration, and C mother solution keeps in Dark Place；
(3) it is configured to two kinds of nutritional solutions according to the demand difference of leaf vegetables different growth phases:
(1) leaf vegetables field planting early stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, i.e. leaf vegetables field planting early stage nutrient composition content；
(2) leaf vegetables field planting later stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, then is multiplied by 2.0, i.e. leaf vegetables field planting later stage nutrient composition content；
During compounding, various types of mother solution being diluted in EC value according to formula less than in the tap water of 0.1mS/cm respectively in proportion successively, after stirring, correcting nutritional solution Optimal pH with phosphoric acid or sodium hydroxide respectively is 6.6, to obtain final product。
The 4-6 month in 2015, flower cabbage mustard soilless culture test in adopting the leaf vegetables soilless culture nutrient fluid of the present invention to carry out in vegetable growing experimental field booth, experimental cultivar is middle colored cabbage mustard。Sow on April 6th, 2015 after seed is sterilized, when rough leaf is fully deployed by Seeding planting consistent for growth in the plastic box of the nutritional solution of the present invention prepared equipped with 20L, the strain of every case 20, change weekly one time of nutrition liquid, and ventilate continuously。During cabbage mustard results, statistics strain sickness rate, Herb fresh weight, Herb dry weight and plant height。
In selecting the same period, flower cabbage mustard carries out booth conventional cultivation, and line-spacing, spacing in the rows, way to manage are all identical with soilless culture。After cabbage mustard results, statistics strain sickness rate, Herb fresh weight, Herb dry weight and plant height, table 1 below is shown in contrast statistical result。
Embodiment 2
In order to check leaf vegetables soilless culture nutrient fluid and the tradition soilless culture nutrient fluid implementation result on cultivation leaf vegetables of the present invention, the 4-6 month in 2015, while implementing embodiment 1, in selecting the same period, flower cabbage mustard adopts classic water planting formula (see the table 2 below) nutritional solution of knop1865 invention to carry out booth soilless culture test, and line-spacing, spacing in the rows, way to manage are all identical with the soilless culture of embodiment 1。After middle colored cabbage mustard results, statistics strain sickness rate, Herb fresh weight, Herb dry weight and plant height, table 3 below is shown in contrast statistical result。
By embodiment 1 and embodiment 2 it appeared that, the leaf vegetables soilless culture nutrient fluid centering flower cabbage mustard adopting the present invention carries out soilless culture production, the Herb fresh weight of its economical character index, Herb dry weight and plant height not only to promote far away than conventional field production middle colored cabbage mustard of the same race, there has also been than the nutritional solution adopting tradition water planting formula and be obviously improved, and the middle colored cabbage mustard strain sickness rate that adopts the leaf vegetables soilless culture nutrient fluid cultivation of the present invention lower is farther far below conventional greenhouse cultivation with traditional water planting, absolutely prove that in the nutritional solution soilless culture adopting the present invention, flower cabbage mustard can significantly improve yield, promote quality, and the immunity of middle colored cabbage mustard can be substantially increased, reduce the incidence rate of pest and disease damage, thus greatly reducing spraying of pesticide, reduce cost, improve the economic well-being of workers and staff of vegetable grower。
Present invention can be made replacement or modification according to present disclosure and the art technology grasped by those skilled in the art; but these are replaced or modification is all not regarded as a departure from present inventive concept, these are replaced or modification is all in claimed interest field。
Claims (7)
1. a leaf vegetables soilless culture nutrient fluid and compound method, it is characterised in that: this soilless culture nutrient fluid is formed by the allotment of A mother solution, B mother solution, C mother solution, D mother solution and E mother solution, and each mother solution is formulated by weight by following ingredients respectively:
A mother solution: ammonium nitrate 560-580, four water-calcium nitrate 220-230, potassium nitrate 200-210, potassium dihydrogen phosphate 60-70, Magnesium sulfate heptahydrate 235-255, ammonium humate 620-680, composite probiotics ferment liquid 2800-3200；
B mother solution: sodium iodide 0.18-0.22, boric acid 1.3-1.5, manganese sulfate 0.8-1.0, zinc sulfate 0.12-0.14, sodium molybdate 0.01-0.012, copper sulfate 0.045-0.055, cobaltous chloride 0.01-0.012, benzoic acid 0.2-0.3；
C mother solution: disodiumedetate 5.6-5.8, ferrous sulfate 4.4-4.6；
D mother solution: glycine 0.6-0.8, thiamine hydrochloride 0.09-0.11, pyridoxine hydrochloride 0.38-0.42, nicotinic acid 0.38-0.42；
E mother solution: naphthalene acetic acid 0.08-0.09, gibberellins 0.036-0.040, compound sodium nitrophenolate 6.0-6.4；
Described leaf vegetables soilless culture nutrient fluid is configured to two kinds of nutritional solutions according to the demand difference of leaf vegetables different growth phases:
(1) leaf vegetables field planting early stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, i.e. leaf vegetables field planting early stage nutrient composition content；
(2) leaf vegetables field planting later stage nutritional solution: the weight portion of A, B, C, D, E mother solution is counted according to mg, then is multiplied by 2.0, i.e. leaf vegetables field planting later stage nutrient composition content。
2. leaf vegetables soilless culture nutrient fluid according to claim 1 and compound method, it is characterised in that: in described A, B, C, D, E, F mother solution, the optimal proportion of each Parts by Ingredients is:
A mother solution: ammonium nitrate 570, four water-calcium nitrate 225, potassium nitrate 205, potassium dihydrogen phosphate 65, Magnesium sulfate heptahydrate 245, ammonium humate 650, composite probiotics ferment liquid 3000；
B mother solution: sodium iodide 0.2, boric acid 1.4, manganese sulfate 0.9, zinc sulfate 0.13, sodium molybdate 0.011, copper sulfate 0.05, cobaltous chloride 0.011, benzoic acid 0.25；
C mother solution: disodiumedetate 5.7, ferrous sulfate 4.5；
D mother solution: glycine 0.7, thiamine hydrochloride 0.1, pyridoxine hydrochloride 0.4, nicotinic acid 0.4；
E mother solution: naphthalene acetic acid 0.085, gibberellins 0.038, compound sodium nitrophenolate 6.2。
3. leaf vegetables soilless culture nutrient fluid according to claim 1 and 2 and compound method, compound method is as follows:
(1) before compounding, first being counted according to mg by the weight portion of A, B, C, D, E mother solution respectively, A and C mother solution prepares into A mother solution and C mother solution according to 100 times of concentration, and B, D and E mother solution prepares into B, D and E mother solution according to 1000 times of concentration, and C mother solution keeps in Dark Place；
(2) during compounding, respectively various mother solutions are diluted in tap water in proportion successively according to formula, stir and get final product；
(3) regulating pH: measure nutritional solution pH value with pH meter, correct nutritional solution pH with phosphoric acid or sodium hydroxide respectively and range for 6.2-7.0, the best is 6.6。
4. leaf vegetables soilless culture nutrient fluid according to claim 1 and compound method, it is characterised in that: the preparation method step of described composite probiotics ferment liquid is as follows:
(1) according to CBM strain: brown sugar: liquor: vinegar: dispensing is mixed by the ratio that clean tap water weight ratio is 1:1:1:1:10, puts in plastic containers, seals；
(2) plastic containers are placed in the environment of 32-38 DEG C and ferment, open container test pH value after 5-9 days, if pH value is in 3.6 ~ 4.4, then shows to ferment successfully, otherwise continue sealing and fermenting；
(3) ferment after successfully, stir mixed material, take supernatant and namely obtain composite probiotics ferment liquid。
5. leaf vegetables soilless culture nutrient fluid according to claim 1 and compound method, it is characterised in that: described leaf vegetables setting date refers to trophophase when leaf vegetables true leaf occurs to true leaf 3, now selects leaf vegetables field planting early stage nutritional solution；The described leaf vegetables field planting later stage refers to that leaf vegetables true leaf 3 bores the trophophase starting to break up between bud to Stem nematode, now selects leaf vegetables field planting later stage nutritional solution。
6. leaf vegetables soilless culture nutrient fluid according to claim 3 and compound method, it is characterised in that: the EC value of described tap water should be less than 0.1mS/cm。
7. leaf vegetables soilless culture nutrient fluid according to claim 4 and compound method, it is characterised in that: described liquor alcoholic strength should be greater than 30 degree。
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| CN107047260A (en) * | 2017-04-25 | 2017-08-18 | 福建绿滢生态农林发展有限公司 | The method of pakchoi soilless culture |
| CN108901804A (en) * | 2018-06-30 | 2018-11-30 | 李丹 | A kind of cultivation apparatus without soil and the nutrient solution applied to the cultivation apparatus without soil |
| CN111018595A (en) * | 2019-12-30 | 2020-04-17 | 广东灿城农产品集团有限公司 | Nutrient solution for soilless culture and preparation method thereof |
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| CN106495868A (en) * | 2016-10-31 | 2017-03-15 | 嘉善弘欣化工厂（普通合伙） | A kind of gynura bicolor Nutrient formula of liquid and its preparation technology |
| CN107047260A (en) * | 2017-04-25 | 2017-08-18 | 福建绿滢生态农林发展有限公司 | The method of pakchoi soilless culture |
| CN108901804A (en) * | 2018-06-30 | 2018-11-30 | 李丹 | A kind of cultivation apparatus without soil and the nutrient solution applied to the cultivation apparatus without soil |
| CN111018595A (en) * | 2019-12-30 | 2020-04-17 | 广东灿城农产品集团有限公司 | Nutrient solution for soilless culture and preparation method thereof |
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