CN101491204A - Boston butterhead lettuce water-culture nutrient solution and preparation method thereof - Google Patents
Boston butterhead lettuce water-culture nutrient solution and preparation method thereof Download PDFInfo
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Abstract
The invention relates to plant nutrition and fertilizer technology, in particular to a cheese ball lettuce water culture nutrient solution and a preparation method thereof. The mother liquor of the nutrient solution comprises the following components: 50 to 60g/L of tetrahydrate calcium nitrate, 80 to 100g/L of niter, 5 to 7g/L of ammonium nitrate, 18 to 20g/L of heptahydrate magnesium sulfate, 5 to 6g/L of potassium sulfate, 20 to 25g/L of phosphoric acid, 1 to 2g/L of ethylenediamine tetraacetic acid, 0.2 to 0.4g/L of boric acid, 0.1 to 0.3 g/L of tetrahydrate manganese sulfate, 0.05 to 0.1g/L of heptahydrate zinc sulfate, 0.05 to 0.1g/L of blue vitriol, 0.02 to 0.04g/L of tetrahydrate ammonium molybdate, 0.2 to 0.3g/L of sodium azide, and the balance being water. The preparation method comprises the following steps: respectively dissolving the macroelements, medium elements and microelements in water, carrying out the even mixing, setting the volume, obtaining the mother liquor, and obtaining the nutrient solution which is prepared by mixing mother liquor and water pro rata. The invention has the advantages of simple process, sufficient raw materials, and easy implementation. The invention solves the problem of the nutrient supply for the water culture industrialized production of cheese ball lettuce.
Description
Technical field
The present invention relates to plant nutrition and fertilizer technology, be specially a kind of Boston butterhead lettuce water-culture nutrient solution and preparation method thereof.
Background technology
Vegetable soilless culture is one of state-of-the-art culture technique in the world today, because the soilless culture ratio has the soil cultivation to have many advantages, therefore the soilless culture area develops linearly ascendant trend in recent years. the type of general soilless culture mainly contains water planting, rock wool training and substrate culture three major types.Compare with the earth culture vegetables, water planting has plurality of advantages: (1) earth culture vegetables speckle with earth, clean inconveniently, and the water planting leaf vegetables is better than earth culture leaf vegetables quality, and are clean, fresh and tender, mouthfeel is good, quality is superior; (2) earth culture vegetables rotations of crops operation is loaded down with trivial details, needs the bedding of whole ground, field planting fertilising, operation such as water; The water planting vegetables are changed crops simple, only need seedling implanted in the field planting hole to get final product, can sowing, field planting, gather, can carry out annually cultivating in same place; (3) water planting vegetable growth cycle weak point, turnover is fast; (4) because the leaf vegetables growth cycle is short, and the water planting vegetables generally do not need to change nutrient solution midway, save fertilizer; (5) the water planting vegetables can avoid continuous cropping to hinder, the cropping index height, and facility running rate height, good in economic efficiency.
It is crucial that water culture is produced vegetable nutrient liquid.Different Crop exists than big difference the needs of nutritive element, is both leaf vegetables, and nutrient in the nutrient solution is formed, and acid-base value condition etc. also exists than big-difference.Nutritive element is too much in the nutrient solution, can cause the wasting of resources; Certain nutritive element content is very few, can cause the nutrient deficiency disease of vegetables again, influences vegetable yields and quality.As using organic acid iron or inorganic iron as the plain nutrient source of iron in the nutrient solution, crop iron deficiency symptom still can take place in the incubation, and select EDTA iron effect fine.Therefore, at the needs of Different Crop to nutrient, preparing nutrient solution with strong points, is one of key technology that solves vegetables water planting and batch production production.
Junket ball lettuce is commonly called as the cream romaine lettuce, and leaf-head is less, looser, and blade is broad, the quality softness, and vegetative period is shorter.Junket ball lettuce is the entree of cold and dressed with sauce salad mainly to eat raw, belongs to high-grade vegetable variety, and at present main subject of a sale is hotel concerning foreign affairs, exclusive restaurant, reaches large supermarket, and is used for outlet.Therefore, junket ball lettuce product needed is fresh and tender, clean, pollution-free.The earth culture plantation needs processes such as whole ground, sowing, thinning, weeding, generally needs about about four months time, because tongue, loose head phenomenon can appear scurrying in the plantation in summer, can only plant two batches in general 1 year under northern China greenhouse culture condition.Plantation junket ball lettuce also disease can occur in the vegetable greenhouse that is subjected to the soil-borne disease influence.The earth culture method is produced junket ball lettuce, often bad order, kind is inferior, output is not high.
Adopting water culture to produce junket ball lettuce is a kind of desirable cultivation method.Water culture production junket ball lettuce has product and is of high nutritive value, and is with short production cycle, is not subjected to season and weather influence, realizes high-quality, high efficiency production.Under the water planting condition, junket ball lettuce has strict requirement to the pH of nutrient composition and nutrient solution etc., and nutrient solution is one of main limiting factor of water planting, and development appropriate nutrition liquid is the key that water culture is produced junket ball lettuce.
Summary of the invention
The object of the present invention is to provide a kind of technology simple, the raw material abundance, Boston butterhead lettuce water-culture nutrient solution of implementing and preparation method thereof solves the nutrient supply problem that junket ball lettuce is produced in the water culture batch production easily.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of Boston butterhead lettuce water-culture nutrient solution, the nutrient solution mother liquor composition is: four water-calcium nitrate 50～60g/L, potassium nitrate 80～100g/L, ammonium nitrate 5～7g/L, epsom salt 18～20g/L, potassium sulphate 5～6g/L, phosphoric acid (85%wt) 20～25mL/L, ethylenediamine tetra-acetic acid iron 1～2g/L, boric acid 0.2～0.4g/L, four water manganese sulphates, 0.1～0.3g/L, white vitriol 0.05～0.1g/L, cupric sulfate pentahydrate 0.05～0.1g/L, four water ammonium molybdates, 0.02～0.04g/L, Sodium azide 0.2～0.3g/L, surplus is a water; Nutrient solution is made up of mother liquor and water, umber meter by volume, and mother liquor accounts for 1～1.2 part, and water accounts for 98.8～99 parts.
The design philosophy of Boston butterhead lettuce water-culture nutrient solution mother liquor of the present invention is: the composition of mill water culture nutrient solution is according to the grow nutrient proportioning of needs of junket ball lettuce, macronutrient nitrogen, phosphorus, potassium are wherein arranged, middle amount nutritive element calcium, magnesium, sulphur, micronutrient element iron, boron, manganese, zinc, copper, molybdenum.Nutritive element is a complete-matter nourishing, helps improving product quality.All compositions all can be plant growth nutrition are provided, and can guarantee the balance supply.In addition, for preventing the generation peculiar smell such as organic acid of junket ball lettuce root exudates secretion in the incubation, added the preservative composition.The major function of each composition is as follows in the mother liquor prescription:
Four water-calcium nitrate: lettuce grow needed macronutrient nitrogen and the Ca supply of middle amount nutritive element mainly are provided.
Potassium nitrate: the supply that mainly provides lettuce to grow needed macronutrient nitrogen and potassium.
Ammonium nitrate: the supply that mainly provides lettuce to grow needed macronutrient nitrogen.
Epsom salt: the supply of the needed middle amount nutritive element magnesium of lettuce growth mainly is provided.
Potassium sulphate: the supply that mainly provides lettuce to grow needed macroelement potassium and middle amount nutritive element sulphur.
Phosphoric acid: the supply that mainly provides lettuce to grow needed macronutrient phosphorus, and the acid-base value of transferring nutrient solution make it to be fit to the lettuce growth.
Ethylenediamine tetra-acetic acid iron: the supply that mainly provides lettuce to grow needed micronutrient element iron.
Boric acid: the supply that mainly provides lettuce to grow needed micronutrient element boron.
Four water manganese sulphates: the supply that mainly provides lettuce to grow needed micronutrient element manganese.
White vitriol: the supply that mainly provides lettuce to grow needed micronutrient element zinc.
Cupric sulfate pentahydrate: the supply that mainly provides lettuce to grow needed micronutrient element copper.
Four water ammonium molybdates: the supply that mainly provides lettuce to grow needed micronutrient element molybdenum.
Sodium azide: mainly have anti-corrosion function, nitrogen wherein also can provide the lettuce needed nitrogen nutrition of growing after transforming.
The present invention has following advantage:
1. absorb the characteristics of nutritive element during the present invention grows according to junket ball lettuce, determine the nutrient composition prescription, with strong points, technology is simple, and the raw material abundance is implemented easily.
2. the present invention prepares the nutrient solution mother liquor earlier, and a large amount of, middle amount and micro-element are arranged in the nutrient solution, and with Sodium azide as preservative, be easy to store, stock solution dilutes in actual applications, and is easy to use.
3. among the present invention phosphoric acid is entered prescription as the source of manure, nutrient solution pH is remained between 6.0～6.5, reach the purpose of acid adjustment, for the growth of junket ball lettuce provides a kind of suitable acid-base value condition.
4. formula material of the present invention pollutes, no residual hazard, and the junket ball lettuce that utilizes the present invention to produce belongs to the pollution-free vegetable product.
5. the present invention solves the nutrient supply problem that junket ball lettuce is produced in the water culture batch production, and invention can be used for the greenhouse water planting and produces junket ball lettuce, and adaptability is strong, and market application foreground is extensive.
Description of drawings:
Fig. 1: Boston butterhead lettuce water-culture greenhouse.
Fig. 2: cultivation plate and nutrition liquid bath.Wherein, 1 is the cultivation plate, and 2 are the nutrition liquid bath.
Embodiment
The present invention prepares the Boston butterhead lettuce water-culture nutrient solution mother liquor earlier, the nutrient solution mother liquor composition is: four water-calcium nitrate 50～60g/L, potassium nitrate 80～100g/L, ammonium nitrate 5～7g/L, epsom salt 18～20g/L, potassium sulphate 5～6g/L, phosphoric acid 20～25mL/L, ethylenediamine tetra-acetic acid iron 1～2g/L, boric acid 0.2～0.4g/L, four water manganese sulphates, 0.1～0.3g/L, white vitriol 0.05～0.1g/L, cupric sulfate pentahydrate 0.05～0.1g/L, four water ammonium molybdates, 0.02～0.04g/L, Sodium azide 0.2～0.3g/L, surplus is a running water.
Get a certain amount of container, above-mentioned medicine is fully dissolved and stir, be mixed with mother liquor.After the mother liquor preparation is finished, pour receiver into and store, standby.Nutrient solution is made up of mother liquor and water, umber meter by volume, and mother liquor accounts for 1～1.2 part, and water accounts for 98.8～99 parts.
Converting water with nutrient solution mother liquor 1: 99 by volume ratio when the practical application is example.The composition of the concrete nutrient solution of using is: four water-calcium nitrate 500～600mg/L, potassium nitrate 800～1000mg/L, ammonium nitrate 50～70mg/L, epsom salt 180～200mg/L, potassium sulphate 50～60mg/L, phosphoric acid 0.20～0.25mL/L, ethylenediamine tetra-acetic acid iron 10～20mg/L, boric acid 2～4mg/L, four water manganese sulphates, 1～3mg/L, white vitriol 0.5～1.0mg/L, cupric sulfate pentahydrate 0.5～1mg/L, four water ammonium molybdates, 0.2～0.4mg/L, Sodium azide 2～3mg/L, surplus is a running water.
The nutrient solution preparation steps is as follows:
1) macroelement and moderate-element dissolving: get 1000～2000 liters of plastic containers, at the 1000L place scale is set in advance, put 650～700L running water into, press the needed medicine weighing of 1000L mother liquor four water-calcium nitrate 50～60kg, potassium nitrate 80～100kg, ammonium nitrate 5～7kg, epsom salt 18～20kg, potassium sulphate 5～6kg, Sodium azide 0.2～0.3kg, stir with sticking plaster, above-mentioned medicine is mixed, slowly pour SPA (85%wt) 20～25L into by 4～5L/ minute speed, stir with sticking plaster, in a large number with moderate-element solution.
2) trace element dissolving: get the 100L plastic containers, putting into 50～60L temperature is 50～60 ℃ of hot water, put into load weighted in advance ethylenediamine tetra-acetic acid iron 1～2kg, boric acid 0.2～0.4kg, four water manganese sulphates, 0.1～0.3kg, white vitriol 50～100g, cupric sulfate pentahydrate 50～100g, four water ammonium molybdates, 20～40g, stir with sticking plaster, above-mentioned medicine is mixed.Cooling gets trace element solution.
3) with step 2) in cooled trace element solution pour the plastic containers of step 1) into, use 10～15L running water cleaning step 2 at every turn) in container 3～4 times, cleaning fluid is poured the container in the step 1) into, adds water and is settled to 1000L.After stirring, pour the mother liquor receiver into and store, standby.
Be 7～15 days the storage period of mother liquor.
When 4) specifically using,, put 98.8～99 parts of running water into by the water meter volumetric enumeration in advance, add 1～1.2 part of nutrient solution mother liquor according to water culture pond size and depth calculation water consumption.Stir, be made into to produce and use nutrient solution.
Described four water-calcium nitrate, potassium nitrate, ammonium nitrate, epsom salt, potassium sulphate, phosphoric acid, ethylenediamine tetra-acetic acid iron, boric acid, four water manganese sulphates, white vitriol, cupric sulfate pentahydrate, four water ammonium molybdates, Sodium azide are commercial chemicals.
Embodiment 1:
1) macroelement and moderate-element dissolving: get the 2000L plastic containers, at the 1000L place scale is set in advance, put the 700L running water into, weighing is also poured four water-calcium nitrate 55kg, potassium nitrate 90kg, ammonium nitrate 6kg, epsom salt 19kg, potassium sulphate 5.5kg, Sodium azide 0.25kg into, stir with sticking plaster, above-mentioned medicine is mixed, slowly add SPA 25L by 5L/ minute speed, stir with sticking plaster, in a large number with moderate-element solution.
2) trace element dissolving: get the 100L plastic containers, putting into the 55L temperature is 55 ℃ of hot water, put into load weighted in advance ethylenediamine tetra-acetic acid iron 1.5kg, boric acid 0.3kg, four water manganese sulphate 0.3kg, white vitriol 75g, cupric sulfate pentahydrate 75g, four water ammonium molybdate 30g, stir with sticking plaster, above-mentioned medicine is mixed.Cooling gets trace element solution.
3) with step 2) in cooled trace element solution pour the plastic containers of step 1) into, use 10L running water cleaning step 2 at every turn) in container 4 times, cleaning fluid is poured the container in the step 1) into, adds water at last and is settled to 1000L.After stirring, pour the mother liquor receiver into and store, standby.
When 4) present embodiment is specifically used,, put 99 parts of running water into by the water meter volumetric enumeration in advance, add 1 part of nutrient solution mother liquor according to water culture pond size and depth calculation water consumption.Stir, be made into to produce and use nutrient solution.
Embodiment 2:
1) macroelement and moderate-element dissolving: get the 1500L plastic containers, at the 1000L place scale is set in advance, put the 680L running water into, weighing is also poured four water-calcium nitrate 60kg, potassium nitrate 80kg, ammonium nitrate 7kg, epsom salt 20kg, potassium sulphate 6kg, Sodium azide 0.3kg into, stir with sticking plaster, above-mentioned medicine is mixed, slowly add SPA 25L by 5L/ minute speed, stir with sticking plaster, in a large number with moderate-element solution.
2) trace element dissolving: get the 100L plastic containers, putting into the 60L temperature is 50 ℃ of hot water, put into load weighted in advance ethylenediamine tetra-acetic acid iron 1kg, boric acid 0.2kg, four water manganese sulphate 0.1kg, white vitriol 50g, cupric sulfate pentahydrate 100g, four water ammonium molybdate 40g, stir with sticking plaster, above-mentioned medicine is mixed.Cooling gets trace element solution.
3) with step 2) in cooled trace element solution pour the plastic containers of step 1) into, use 15L running water cleaning step 2 at every turn) in container 3 times, cleaning fluid is poured the container in the step 1) into, adds water at last and is settled to 1000L.After stirring, pour the mother liquor receiver into and store, standby.
When 4) present embodiment is specifically used,, put 98.8 parts of running water into by the water meter volumetric enumeration in advance, add 1.2 parts of nutrient solution mother liquors according to water culture pond size and depth calculation water consumption.Stir, be made into to produce and use nutrient solution.
Embodiment 3:
1) macroelement and moderate-element dissolving: get the 1000L plastic containers, at the 1000L place scale is set in advance, put the 650L running water into, weighing is also poured four water-calcium nitrate 50kg, potassium nitrate 100kg, ammonium nitrate 5kg, epsom salt 18kg, potassium sulphate 5kg, Sodium azide 0.2kg into, stir with sticking plaster, above-mentioned medicine is mixed, slowly add SPA 20L by 4L/ minute speed, stir with sticking plaster, in a large number with moderate-element solution.
2) trace element dissolving: get the 100L plastic containers, putting into 50 temperature is 60 ℃ of hot water, put into load weighted in advance ethylenediamine tetra-acetic acid iron 2kg, boric acid 0.4kg, four water manganese sulphate 0.3kg, white vitriol 100g, cupric sulfate pentahydrate 50g, four water ammonium molybdate 20g, stir with sticking plaster, above-mentioned medicine is mixed.Cooling gets trace element solution.
3) with step 2) in cooled trace element solution pour the plastic containers of step 1) into, use 10L running water cleaning step 2 at every turn) in container 4 times, cleaning fluid is poured the container in the step 1) into, adds water at last and is settled to 1000L.After stirring, pour the mother liquor receiver into and store, standby.
When 4) present embodiment is specifically used,, put 98.9 parts of running water into by the water meter volumetric enumeration in advance, add 1.1 parts of nutrient solution mother liquors according to water culture pond size and depth calculation water consumption.Stir, be made into to produce and use nutrient solution.
Embodiment 4～12:
Embodiment is with embodiment 1, and difference is Boston butterhead lettuce water-culture nutrient solution mother liquor composition of raw materials difference to some extent, and except that described prescription medicine, surplus is running water (seeing Table 1) in each prescription.
Table 1
| Embodiment | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Four water-calcium nitrate (g/L) | 50 | 50 | 50 | 55 | 55 | 55 | 60 | 60 | 60 |
| Potassium nitrate (g/L) | 100 | 100 | 100 | 90 | 90 | 90 | 80 | 80 | 80 |
| Ammonium nitrate (g/L) | 5 | 6 | 7 | 5 | 6 | 7 | 5 | 6 | 7 |
| Epsom salt (g/L) | 18 | 19 | 20 | 18 | 19 | 20 | 18 | 19 | 20 |
| Potassium sulphate (g/L) | 5 | 5.5 | 6 | 5 | 5.5 | 6 | 5 | 5.5 | 6 |
| Phosphoric acid (mL/L) | 20 | 22.5 | 25 | 20 | 22.5 | 25 | 20 | 22.5 | 25 |
| Ethylenediamine tetra-acetic acid iron (g/L) | 1 | 1.5 | 2 | 1 | 1.5 | 2 | 1 | 1.5 | 2 |
| Boric acid (g/L) | 0.2 | 0.3 | 0.4 | 0.2 | 0.3 | 0.4 | 0.2 | 0.3 | 0.4 |
| Four water manganese sulphates (g/L) | 0.1 | 0.2 | 0.3 | 0.1 | 0.2 | 0.3 | 0.1 | 0.2 | 0.3 |
| White vitriol (mg/L) | 50 | 75 | 100 | 50 | 75 | 100 | 50 | 75 | 100 |
| Cupric sulfate pentahydrate (mg/L) | 50 | 75 | 100 | 50 | 75 | 100 | 50 | 75 | 100 |
| Four water ammonium molybdates (mg/L) | 20 | 30 | 40 | 20 | 30 | 40 | 20 | 30 | 40 |
| Sodium azide (g/L) | 0.2 | 0.25 | 0.3 | 0.2 | 0.25 | 0.3 | 0.2 | 0.25 | 0.3 |
Application examples 1:
As Fig. 1-shown in Figure 2, select 1 long 105m, the plastic green house of wide 10m, nutrition liquid bath 2 long 100m, wide 8m, dark 0.15m, adding the nutrient solution degree of depth is 0.1m, the nutrient solution volume is 80m
3Put 79.2m into by the water meter volumetric enumeration in advance
3Running water, the nutrient solution mother liquor 800L along in the woven hose adding embodiment of the invention 1 stirs, and is made into to produce and uses nutrient solution.Produce and be: four water-calcium nitrate 550mg/L, potassium nitrate 900mg/L, ammonium nitrate 60mg/L with composition in the nutrient solution, epsom salt 190mg/L, potassium sulphate 55mg/L, phosphoric acid 0.25mL/L, ethylenediamine tetra-acetic acid iron 15mg/L, boric acid 3mg/L, four water manganese sulphate 3mg/L, white vitriol 0.75mg/L, cupric sulfate pentahydrate 0.75mg/L, four water ammonium molybdate 0.3mg/L, Sodium azide 2.5mg/L.
As shown in Figure 2, make cultivation plate 1 in advance, cultivation plate 1 is made by the thick styrofoam of 3cm, with 20cm * 20cm planting density punching, and about the 2.8cm of aperture, 25 strains/m
2The junket ball lettuce seedling of 3～4 true leaves of field planting mid-October (seedling age 25 days) after the field planting, is produced with nutrient solution and is controlled at 19～23 ℃ by circulating pump circulation, greenhouse temperature.Should be total to 20,000 strains of field planting junket ball lettuce by use-case, the 27th day results junket ball lettuce behind the field planting thing, junket ball lettuce average weight is 195g, average 1.7 yuan/strain of wholesale price.
Application examples 2:
As Fig. 1-shown in Figure 2, select 1 long 105m, the plastic green house of wide 8m, nutrition liquid bath 2 long 100m, wide 6m, dark 0.15m, adding the nutrient solution degree of depth is 0.1m, the nutrient solution volume is 60m
3Put a part 59.28m into by the water meter counting in advance
3Running water, the nutrient solution mother liquor 720L along in the woven hose adding embodiment of the invention 2 stirs, and is made into to produce and uses nutrient solution.
As shown in Figure 2, make cultivation plate 1 in advance, cultivation plate 1 is made by the thick styrofoam of 3cm, with 20cm * 20cm planting density punching, and about the 2.8cm of aperture, 25 strains/m
2The junket ball lettuce seedling of 2～3 true leaves of late March field planting (seedling age 18 days) after the field planting, is produced with nutrient solution and is controlled at 20～25 ℃ by circulating pump circulation, greenhouse temperature.Should be total to 1.5 ten thousand strains of field planting junket ball lettuce by use-case, the 37th day results junket ball lettuce behind the field planting thing, junket ball lettuce average weight is 224g, average 1.8 yuan/strain of wholesale price.
Claims (4)
1. Boston butterhead lettuce water-culture nutrient solution, it is characterized in that, the nutrient solution mother liquor composition is: four water-calcium nitrate 50～60g/L, potassium nitrate 80～100g/L, ammonium nitrate 5～7g/L, epsom salt 18～20g/L, potassium sulphate 5～6g/L, phosphoric acid 20～25mL/L, ethylenediamine tetra-acetic acid iron 1～2g/L, boric acid 0.2～0.4g/L, four water manganese sulphates, 0.1～0.3g/L, white vitriol 0.05～0.1g/L, cupric sulfate pentahydrate 0.05～0.1g/L, four water ammonium molybdates, 0.02～0.04g/L, Sodium azide 0.2～0.3g/L, surplus is a water; Nutrient solution is made up of mother liquor and water, umber meter by volume, and mother liquor accounts for 1～1.2 part, and water accounts for 98.8～99 parts.
2. the preparation method of Boston butterhead lettuce water-culture nutrient solution according to claim 1 is characterized in that: a large amount of and moderate-element and trace element dissolve in water respectively in will filling a prescription earlier, mix at last, and constant volume must mother liquor; Described nutrient solution is mixed in described ratio by mother liquor and water.
3. the preparation method of Boston butterhead lettuce water-culture nutrient solution according to claim 2 is characterized in that: described a large amount of and moderate-element is four water-calcium nitrate, potassium nitrate, ammonium nitrate, epsom salt, potassium sulphate, phosphoric acid, Sodium azide.
4. the preparation method of Boston butterhead lettuce water-culture nutrient solution according to claim 2, it is characterized in that: described trace element is ethylenediamine tetra-acetic acid iron, boric acid, four water manganese sulphates, white vitriol, cupric sulfate pentahydrate, four water ammonium molybdates.
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Cited By (7)
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| CN102992842A (en) * | 2012-11-20 | 2013-03-27 | 陈卫文 | Compound fertilizer suitable for lettuce cultivation in low-fertility and medium-fertility districts |
| CN104211470A (en) * | 2014-08-28 | 2014-12-17 | 济南水梦缘水培花卉有限公司 | Water-culture plant nutrient solution |
| CN104276873A (en) * | 2014-09-28 | 2015-01-14 | 定远县金胜农业开发有限公司 | Romaine lettuce soilless culture nutrient liquid and preparation method thereof |
| CN104926430A (en) * | 2015-05-21 | 2015-09-23 | 北京农业智能装备技术研究中心 | Nutrient solution for hydroponic lettuce and preparation method and application of nutrient solution |
| CN106535622A (en) * | 2014-10-14 | 2017-03-22 | 松下知识产权经营株式会社 | Solution cultivation method for low potassium vegetable, low potassium vegetable and cultivation device |
| CN107593403A (en) * | 2017-09-13 | 2018-01-19 | 佛山市三水区嘉信农业技术研究院（普通合伙） | A kind of implantation methods of Silicon-rich lettuce |
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| CN102992842A (en) * | 2012-11-20 | 2013-03-27 | 陈卫文 | Compound fertilizer suitable for lettuce cultivation in low-fertility and medium-fertility districts |
| CN104211470A (en) * | 2014-08-28 | 2014-12-17 | 济南水梦缘水培花卉有限公司 | Water-culture plant nutrient solution |
| CN104211470B (en) * | 2014-08-28 | 2016-08-24 | 济南水梦缘水培花卉有限公司 | A kind of water planting plant nutrient solution |
| CN104276873A (en) * | 2014-09-28 | 2015-01-14 | 定远县金胜农业开发有限公司 | Romaine lettuce soilless culture nutrient liquid and preparation method thereof |
| CN104276873B (en) * | 2014-09-28 | 2017-01-11 | 定远县金胜农业开发有限公司 | Romaine lettuce soilless culture nutrient liquid and preparation method thereof |
| CN106535622A (en) * | 2014-10-14 | 2017-03-22 | 松下知识产权经营株式会社 | Solution cultivation method for low potassium vegetable, low potassium vegetable and cultivation device |
| CN106535622B (en) * | 2014-10-14 | 2019-08-30 | 松下知识产权经营株式会社 | The nutrient fluid cultivation method of low potassium vegetables, low potassium vegetables and culture apparatus |
| CN104926430A (en) * | 2015-05-21 | 2015-09-23 | 北京农业智能装备技术研究中心 | Nutrient solution for hydroponic lettuce and preparation method and application of nutrient solution |
| CN104926430B (en) * | 2015-05-21 | 2018-04-10 | 北京农业智能装备技术研究中心 | A kind of water planting romaine lettuce nutrient solution and preparation method and application |
| CN107593403A (en) * | 2017-09-13 | 2018-01-19 | 佛山市三水区嘉信农业技术研究院（普通合伙） | A kind of implantation methods of Silicon-rich lettuce |
| CN109180296A (en) * | 2018-08-20 | 2019-01-11 | 惠州市源茵畜牧科技有限公司 | A kind of vegetable growing nutrient solution |
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