CN110452039A - Leaf lettuce water planting nutrient solution and preparation method thereof and application method - Google Patents
Leaf lettuce water planting nutrient solution and preparation method thereof and application method Download PDFInfo
- Publication number
- CN110452039A CN110452039A CN201910867523.9A CN201910867523A CN110452039A CN 110452039 A CN110452039 A CN 110452039A CN 201910867523 A CN201910867523 A CN 201910867523A CN 110452039 A CN110452039 A CN 110452039A
- Authority
- CN
- China
- Prior art keywords
- edta
- nutrient solution
- water
- leaf lettuce
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Hydroponics (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses Leaf lettuce water planting nutrient solution and preparation method thereof and application methods.The nutrient solution contains following each component: KH2PO4、K2SO4、MgSO4•7H2O、Na2Fe‑EDTA、Na2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、CuSO4•5H2O and (NH4)6Mo7O24•4H2O.The nutrient solution prescription belongs to disconnected nitrogen method, although nitrogen content is extremely low, but phosphorus in nutrient solution, potassium is enabled to mutually to coordinate with nitrogen supply, increase plant to the consumption of phosphorus and the absorption of potassium, does not influence the biological accumulation amount of Leaf lettuce, nor affect on soluble sugar, soluble protein and ascorbic content, Leaf lettuce yield is not reduced, do not cause physically different situation, force the nitrate of rich product utilized by plant strain growth, gradually use up nitrate.
Description
Technical field
The present invention relates to mill water culture nutrient solution technical fields, especially with regard to a kind of Leaf lettuce water planting nutrient solution and its system
Preparation Method and application method.
Background technique
Soilless cultivation is a kind of modern horticultural plant production form without using soil.Water planting is one of soilless cultivation
Important form, referring to the wholly or largely root growth of plant, absorption mineral is supported in the nutrient solution of liquid, and from nutrient solution
Point and moisture.Water planting has many advantages, such as that water-saving fertilizer-saving, pest and disease damage are few, plant recovery of nutrient is high mainly for the production of high-grade vegetables.With
Containing nitrogen sources fertilizer such as ammonium nitrogen or nitrate nitrogens in the nutrient solution of water planting, nitrogen necessary to provide it as vegetables using these fertilizer
Element.But after some leaf vegetables especially Leaf lettuce absorption nitrogen, often richness accumulates nitrate in vivo, matches using conventional
When side, higher concentration nutrient solution, summer culture, nitrate content is often more than country to pollution-free vegetable nitrate
The limit value of content.
Nitrate in human body largely derives from vegetables, and more nitrate is harmful to human body.Nitrate enters people
It can be reduced into nitrite after body, make hemoglobin oxygen chemical conversion ferrihemoglobin to lose oxygen carrying capacity, lead to human body
Anoxic causes methemoglobinemia；In addition, nitrite can also form carcinogenic nitrous in conjunction with nitrogenous compound in stomach
Amine is easy to cause digestive system canceration, causes to seriously threaten to human health.For this purpose, China limits in pollution-free vegetable product
Nitrate content is no more than 432mg/kg.Leaf lettuce is one of main cultivation vegetables of water planting, but current water planting Leaf lettuce institute
It is different with nutrient solution prescription, concentration, planting environment, management method, nitrate content usually between 270-5000 mg/litre,
Amplitude of variation is very big, the problem of content is more than pollution-free vegetable standard easily occurs.In addition, common vegetable passes through salt marsh, is cooked
Nitrate content can reduce by 45% and 60%-75% respectively afterwards, but Leaf lettuce to be based on eating raw, thus cannot be by salt marsh, cooked
Etc. processing methods reduce nitrate content.
It is typically employed in nutrient solution in existing water planting field with ammonium generation to reduce the nitrate content in victual
Nitre or with urea for the micro- fertilizer of cut-off nitrogenous fertilizer, foliage-spray before nitre, harvest, spray organic acid, adjustment the methods of nitrogen phosphoris and potassium fertilizer ratio, to it
It is specifically described as follows:
(1) with ammonium for nitre or with urea for nitre method: by entire breeding time, come with ammonium nitrogen or amidonitrogen all or part of
Increase Ca with appropriate instead of the nitrate in original nutrient solution prescription, then by the pH value variation of control nutrient solution2+、K+Deng confession
Ying Liang reduces nitrate content, and keeps vegetables overall growth normal, but yield reduction amplitude is larger.Although nitre can drop in this method,
But yield of vegetables can also have therewith and greatly reduce；In addition, for the Leaf lettuce of obligate happiness nitre, tolerance ammonium nitrogen
Ability is weaker, easily occurs the physiological abnormalities of Various Complex using ammonium nitrogen.
(2) disconnected nitrogen method before harvest: the supply of nitrogen is interrupted or reduced before harvest, is contained with reducing nitrate in product
Amount.Currently, such research is still in the theory study stage, it is limited only to simply reduce or remove in original formula in picking time
Nitrogenous fertilizer, the dosage, ratio, concentration of other elements or fertilizer there is no and clearly report, also have no that nitre is effective is directed to for drop
The proprietary formula of Leaf lettuce.The shortcomings that disconnected nitrogen method, is before harvest: in actual production, reducing in nutrient solution or do not add nitrogen
Element fertilizer will lead to formula Mineral Elements proportional imbalance, easily lead to vegetables without other fertilizer are done with appropriate adjustment
Physically different, there is the even withered phenomenon of serious yellow in blade, and exterior quality reduces, taste bad；Moreover, current techniques water
Flat, this method is easy to cause the reduction of Vitamin C content.
(3) it applies microelement method: imposing micro- fertilizer such as molybdenum, manganese outside root, have activation to vegetable leaf nitrate reductase,
Nitrate content in plant can be made slightly to reduce, reduce amplitude 5%-15%.Although this method has to Nitrate in Vegetable accumulation is reduced
Certain effect, but effect is very unobvious, reduces amplitude about 5%-10%, and effect is by many factors such as Drug level, spray dates
It influences, effect is unstable.
(4) be sprayed with machine acid system: the sprinkling such as the preceding oxalic acid of harvest, glycine, only this respect is reported, has no specific effect number
According to this method is still in conceptual phase, and effect is unobvious.
(5) it adjusts nitrogen phosphoris and potassium fertilizer ratio method: keeping suitable nitrogen phosphoris and potassium fertilizer ratio, maintain higher potassium concn, allow K in plant+Concentration can reduce nitrate content when reaching 0.101-0.105mol/L to a certain extent.Although being adjusted by phosphorus, potassium
The accumulation of nitrogen is saved, phosphorus element can reinforce potassium to the degree for reducing nitrate, but only just effective when phosphorus reaches certain dosage,
But effect liquid is unobvious, and needs to increase Phosphorus Fertilizer Rates, improves production cost；Moreover, such research only exists in theory at present
Stage there is no practical nutrient solution prescription.
Therefore, how steadily reducing Leaf lettuce nitrate content and not reducing its yield, do not cause physically different is
The purpose of the present invention.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of Leaf lettuce water planting nutrient solutions, are able to solve water planting in the prior art
Leaf lettuce is because luxury absorption causes nitrate content in product excessively high, the problem of causing quality to reduce, while ensuring in technology
Leaf lettuce yield is not reduced in application process, does not cause the physically different situation such as yellowing leaf.
To achieve the above object, the present invention provides a kind of Leaf lettuce water planting nutrient solution, the nutrient solution contains
Following component: KH2PO4、K2SO4、MgSO4•7H2O、Na2Fe-EDTA、Na2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、
CuSO4•5H2O and (NH4)6Mo7O24•4H2O；Wherein, the content of each component is: KH2PO4For 52.0-78.0g/m3、K2SO4For
61.6-92.4g/m3、MgSO4•7H2O is 101.6-152.4g/m3、Na2Fe-EDTA is 32-48g/m3、Na2B4O7•10H2O is
1.92-2.88g/m3、MnSO4•3H2O is 1.024-1.536g/m3、ZnSO4•7H2O is 0.176-0.264g/m3、CuSO4•5H2O
For 0.056-0.084g/m3(NH4)6Mo7O24•4H2O is 0.2-0.3g/m3。
Above-mentioned formula is an entirety, includes all required mineral elements of plant that must be absorbed by root system of plant, packet
A great number of elements and microelement are included, formula is balanced and comprehensive, if few one kind, will destroy plant-physiology balancing, lead to physiology
It is abnormal, and the content of its element ion is in chemistry balance state.
In a preferred embodiment, the chelated iron Na2Fe-EDTA uses FeSO4•7H2O and EDTA-Na2•2H2O
It is prepared.
In a preferred embodiment, the content of the component is:
KH2PO4For 71.5g/m3、K2SO4For 84.7g/m3、MgSO4•7H2O is 139.7g/m3、Na2Fe-EDTA is 44g/m3、
Na2B4O7•10H2O is 2.64g/m3、MnSO4•3H2O is 1.408g/m3、ZnSO4•7H2O is 0.242g/m3、CuSO4•5H2O is
0.077g/m3(NH4)6Mo7O24•4H2O is 0.275g/m3。
Another object of the present invention is to provide a kind of preparation methods of above-mentioned Leaf lettuce water planting nutrient solution, specific to walk
Suddenly include:
(1) KH is weighed by each component content2PO4、K2SO4And MgSO4•7H2O, mixing, adds water and stirs, until being completely dissolved, adds water
Constant volume is configured to concentrate A, and storage is in the cool；(2) chelated iron Na is pressed2The content of Fe-EDTA weighs FeSO4•7H2O and
EDTA-Na2•2H2O, by FeSO4•7H2O and EDTA-Na2•2H2O is dissolved with water respectively, forms solution and EDTA-Na2Solution, so
Ferrous sulfate solution is poured slowly into EDTA-Na afterwards2In solution, bevelling stirring in side forms stable chelated iron Na2Fe-EDTA is molten
Liquid；(3) Na is weighed by each component content2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、CuSO4•5H2O and (NH4)6Mo7O24•4H2O, respectively plus suitable quantity of water dissolves, and pours into above-mentioned Na2It in Fe-EDTA solution, is stirred when pouring into, then plus water is fixed
Hold, concentrate B is made, storage is in the cool；And above-mentioned concentrate A and concentrate B are sequentially added the storage for having water in advance by (4)
In liquid pool, stir evenly after adding water constant volume to get Leaf lettuce water planting nutrient solution.
The present invention also provides the preparation method of above-mentioned Leaf lettuce water planting nutrient solution, specific steps include:
(1) water of 50% or more cultivation nutrient solution final volume is filled in container；(2) Na is pressed2The content of Fe-EDTA weighs
FeSO4•7H2O and EDTA-Na2•2H2O, by FeSO4•7H2O and EDTA-Na2•2H2O is dissolved with water respectively, and it is molten to form ferrous sulfate
Liquid and EDTA-Na2Then ferrous sulfate solution is poured slowly into EDTA-Na by solution2In solution, bevelling stirring in side forms and stablizes
Chelated iron Na2Fe-EDTA solution；(3) KH is weighed respectively by formula2PO4、K2SO4、MgSO4•7H2O、Na2B4O7•10H2O、
MnSO4•3H2O、ZnSO4•7H2O、CuSO4•5H2O and (NH4)6Mo7O24•4H2O, and be respectively placed in individual container, then again
Respectively plus suitable quantity of water is dissolved；And (4) pour into the solution of each component obtained by step (2) and step (3) in container, while falling
Side stirring, adds water constant volume, stirs evenly to get Leaf lettuce water planting nutrient solution.
The present invention also provides the application method of above-mentioned Leaf lettuce water planting nutrient solution, which includes: by institute
The cultivation later period that Leaf lettuce water planting nutrient solution is stated in water planting Leaf lettuce applies.
In a preferred embodiment, the Leaf lettuce water planting nutrient solution start within 5-10 days before harvesting application or
Start to apply within the 20th ~ 30 day after Leaf lettuce Seeding planting；Preferably, the Leaf lettuce water planting nutrient solution is harvesting
Start within first 7 days to apply or starts to apply for the 25th day after Leaf lettuce Seeding planting.
In a preferred embodiment, before applying the Leaf lettuce water planting nutrient solution, cultivating facility Central Plains is drained
Then nutritious liquid is added the Leaf lettuce water planting nutrient solution and fills into clear water after administration time 3-8 days；Preferably, institute
Stating administration time is 5 days.
In a preferred embodiment, after filling into clear water, clear water is 2 days or more using the time.
In a preferred embodiment, during application, the pH value of the Leaf lettuce water planting nutrient solution is maintained
Within the scope of 6.5-6.8；Preferably, mass percent concentration is used to adjust the leaf for 10% sulfuric acid or 10% sodium hydroxide and use
The pH value of lettuce water planting nutrient solution.
Compared with prior art, it has the following beneficial effects: according to the present invention
(1) ammonium molybdate tetrahydrate (NH in nutrient solution prescription of the present invention4)6Mo7O24•4H2Although O contains nitrogen, but ammonium molybdate tetrahydrate
(NH4)6Mo7O24•4H2O dosage in the formula is extremely small, ammonium molybdate tetrahydrate (NH in formula4)6Mo7O24•4H2O is mainly provided
Microelement molybdenum element differs multiple orders of magnitude with this macroelement fertilizer dosage of other nitrogenous fertilizer, and nitrogen content can be ignored
Disregard, therefore, inventive formulation belongs to disconnected nitrogen method；
There is apparent interaction, such as collaboration and antagonism, nitrogen, phosphorus are also between three kinds of elements of potassium between nutrient
In this way, the present invention, which passes through, determines potassium dihydrogen phosphate KH2PO4, potassium sulfate K2SO4Dosage, form suitable P elements, potassium member
Plain dosage and ratio, can increase consumption of the plant to phosphorus, and then increase the absorption to potassium, and absorb after potassium increases, then can subtract
The accumulation of nitrogen in few plant, to achieve the effect that reduce nitrate content；
Root system of plant has active absorption and two kinds of Passive intake to the absorption pattern of nutrient in solution, and the present invention passes through seven water sulfuric acid
Magnesium MgSO4•7H2O, chelated iron Na2Fe-EDTA, borax decahydrate Na2B4O7•10H2O, three water manganese sulfate MnSO4•3H2O, seven water sulphur
Sour zinc ZnSO4•7H2O, cupric sulfate pentahydrate CuSO4•5H2O and ammonium molybdate tetrahydrate (NH4)6Mo7O24•4H2O also have adjusted N P and K it
Other outer indispensable element concentration make the reduction of nutrient solution total concentration, and when total concentration reduces, plant enters root system because of Passive intake
Internal nutrient can be reduced, and by reducing plant to the uptake of mineral nutrition, can be promoted in plant cell vacuole and before
The nitrate of luxury absorption accumulation can be consumed by plant growth, to reduce nitrate content；
Although being enabled in Leaf lettuce water planting nutrient solution in short, nitrogen content is extremely low in nutrient solution prescription of the present invention
P elements, potassium element and nitrogen supply situation are mutually coordinated, and do not influence the biological accumulation amount of Leaf lettuce, nor affect on solubility
Sugar, soluble protein and ascorbic content, do not reduce Leaf lettuce yield, do not cause the physically different feelings such as yellowing leaf
Condition, solving in existing disconnected nitrogen method easily causes vegetables physically different, and the even withered phenomenon of serious yellow, appearance occurs in blade
The problem of quality reduces, and taste bad and Vitamin C content reduce；By reducing nutrient solution concentration, Leaf lettuce leaf is controlled
The speed of growth of piece, the rich nitrate accumulated of institute is utilized by plant strain growth before forcing in lettuce blade, gradually uses up rich product
Nitrate, substantially reduce the content of nitrate in the Leaf lettuce of water planting.
(2) the Leaf lettuce water planting nutrient solution prepared by using formula of the invention is simultaneously sought by corresponding method
Nutrient solution management can be such that the nitrate content in water planting Leaf lettuce blade is greatly lowered, minimum to be down to 38 mg/litres,
Well below the restriction of national 432 mg/litre of pollution-free vegetable, so that it is guaranteed that comply fully with country nuisanceless for Leaf lettuce product
Requirement of the vegetables to nitrate content；Meanwhile the Leaf lettuce speed of growth delays, and extends picking time, and product is allowed persistently to list；
Leaf lettuce yield does not reduce compared with conventional water planting before；Do not occur the physiological abnormalities such as leaf color flavescence, exterior quality
Normally.
(3) gained nutrient solution in include Leaf lettuce growth needed for mineral nutrient element phosphorus, sulphur, potassium, magnesium, iron, manganese,
Boron, zinc, copper, molybdenum, chlorine are suitble to the various water planting forms such as depth liquid stream water planting, nutrient film water planting, folded benzvalene form column water planting, mist training.
(4) Leaf lettuce water planting nutrient solution of the present invention is shorter using the time, and nutrient and water can be pressed by Leaf lettuce
Balanced proportion absorbs, so as to allow nutrient solution to consume naturally, it is not necessary to regulate and control to the concentration of nutrient solution.
Definition and explanation:
KH2PO4It is potassium dihydrogen phosphate；K2SO4It is potassium sulfate；MgSO4•7H2O is epsom salt；Na2Fe-EDTA is chelated iron；
Na2B4O7•10H2O is borax decahydrate；MnSO4•3H2O is three water manganese sulfates；ZnSO4•7H2O is white vitriol；CuSO4•5H2O
It is cupric sulfate pentahydrate；(NH4)6Mo7O24•4H2O is ammonium molybdate tetrahydrate；FeSO4•7H2O is ferrous sulfate heptahydrate；EDTA-Na2•
2H2O is two water EDETATE SODIUMs.
Specific embodiment
Specific embodiments of the present invention will be described in detail below, it is to be understood that protection scope of the present invention is not
It is restricted by specific implementation.
Embodiment 1: the preparation method of Leaf lettuce water planting nutrient solution
The preparation method step includes:
(1) KH of 71.5g is weighed2PO4, 84.7g K2SO4With the MgSO of 139.7g4•7H2O, mixing, adds water and stirs, until complete
Fully dissolved adds water to be settled to 10L, is configured to concentrate A, storage is in the cool；
(2) FeSO of 30.58g is weighed4•7H2The EDTA-Na of O and 40.92g2•2H2O, by FeSO4•7H2O and EDTA-Na2•
2H2O is dissolved with water respectively, forms ferrous sulfate solution and EDTA-Na2Then ferrous sulfate solution is poured slowly by solution
EDTA-Na2In solution, bevelling stirring in side forms the chelated iron Na of stable 44g2Fe-EDTA solution；
(3) Na of 2.64g is weighed2B4O7•10H2O, the MnSO of 1.408g4•3H2O, the ZnSO of 0,242g4•7H2O, 0.077g
CuSO4•5H2(the NH of O and 0.275g4)6Mo7O24•4H2O is dissolved with the water of 0.1L respectively, pours into above-mentioned chelated iron Na2Fe-
It in EDTA solution, is stirred when pouring into, then plus water is settled to 10L, concentrate B is made, storage is in the cool；And
(4) 0.5m is added in liquid storage tank3Water, pour into above-mentioned concentrate A, stir, then pour into above-mentioned concentrate B, side bevelling
Stirring, then plus water is settled to 1m3, stir evenly to get Leaf lettuce water planting nutrient solution.
Embodiment 2: the preparation method of Leaf lettuce water planting nutrient solution
The preparation method step includes:
(1) container volume is 1m3, the water of 600L is added into container；
(2) FeSO of 30.58g is weighed4•7H2The EDTA-Na of O and 40.92g2•2H2O, by FeSO4•7H2O and EDTA-Na2•
2H2O is dissolved with water respectively, forms ferrous sulfate solution and EDTA-Na2Then ferrous sulfate solution is poured slowly by solution
EDTA-Na2In solution, bevelling stirring in side forms the chelated iron Na of stable 44g2Fe-EDTA solution；
(3) KH of 71.5g is weighed respectively by formula2PO4, 84.7g K2SO4, 139.7g MgSO4•7H2O, 2.64g
Na2B4O7•10H2O, the MnSO of 1.408g4•3H2O, the ZnSO of 0.242g4•7H2O, the CuSO of 0.077g4•5H2O's and 0.275g
(NH4)6Mo7O24•4H2O, and be respectively placed in individual container, then add suitable water to be dissolved respectively again；And
(4) solution of each component obtained by step (2) and step (3) is poured into container, bevelling stirring in side adds water to be settled to 1m3,
It stirs evenly to get Leaf lettuce water planting nutrient solution.
Embodiment 3: the preparation method of Leaf lettuce water planting nutrient solution
The preparation method step includes:
(1) KH of 52.0g is weighed2PO4, 61.6g K2SO4With the MgSO of 101.6g4•7H2O, mixing, adds water and stirs, until complete
Fully dissolved adds water to be settled to 10L, is configured to concentrate A, storage is in the cool；
(2) FeSO of 22.24g is weighed4•7H2The EDTA-Na of O and 29.76g2•2H2O, by FeSO4•7H2O and EDTA-Na2•
2H2O is dissolved with water respectively, forms ferrous sulfate solution and EDTA-Na2Then ferrous sulfate solution is poured slowly by solution
EDTA-Na2In solution, bevelling stirring in side forms the chelated iron Na of stable 32g2Fe-EDTA solution；And
(3) Na of 1.92g is weighed2B4O7•10H2O, the MnSO of 1.024g4•3H2O, the ZnSO of 0.176g4•7H2O, 0.056g
CuSO4•5H2(the NH of O and 0.2g4)6Mo7O24•4H2O is dissolved with the water of 0.1L respectively, pours into above-mentioned chelated iron Na2Fe-EDTA
It in solution, is stirred when pouring into, then plus water is settled to 10L, concentrate B is made, storage is in the cool；And
(4) 0.5m is added in liquid storage tank3Water, pour into above-mentioned concentrate A, stir, then pour into above-mentioned concentrate B, side bevelling
Stirring, then plus water is settled to 1m3, stir evenly to get Leaf lettuce water planting nutrient solution.
Embodiment 4: the preparation method of Leaf lettuce water planting nutrient solution
The preparation method step includes:
(1) KH of 78.0g is weighed2PO4, 92.4g K2SO4With the MgSO of 152.4g4•7H2O, mixing, adds water and stirs, until complete
Fully dissolved adds water to be settled to 10L, is configured to concentrate A, storage is in the cool；
(2) FeSO of 33.36g is weighed4•7H2The EDTA-Na of O and 44.64g2•2H2O, by FeSO4•7H2O and EDTA-Na2•
2H2O is dissolved with water respectively, forms ferrous sulfate solution and EDTA-Na2Then ferrous sulfate solution is poured slowly by solution
EDTA-Na2In solution, bevelling stirring in side forms the chelated iron Na of stable 48g2Fe-EDTA solution；
(3) Na of 2.88g is weighed2B4O7•10H2O, the MnSO of 1.536g4•3H2O, the ZnSO of 0.264g4•7H2O, 0.084g
CuSO4•5H2(the NH of O and 0.3g4)6Mo7O24•4H2O is dissolved with the water of 0.1L respectively, pours into above-mentioned chelated iron Na2Fe-EDTA
It in solution, is stirred when pouring into, then plus water is settled to 10L, concentrate B is made, storage is in the cool；And
(4) 0.5m is added in liquid storage tank3Water, pour into above-mentioned concentrate A, stir, then pour into above-mentioned concentrate B, side bevelling
Stirring, then plus water is settled to 1m3, stir evenly to get Leaf lettuce water planting nutrient solution.
Comparative example
Embodiment 1 be formulated on the basis of, comparative example 1(conventional method cultivate Leaf lettuce biological nutrient liquid) formula in increase
CaNO3•H2O and KNO3Component, and CaNO3•H2O group is divided into 945g/m3, KNO3Group is divided into 809g/m3, i.e. embodiment 1 and comparative example
1 formula is as follows:
Embodiment 1 is formulated: KH2PO4For 71.5g/m3、K2SO4For 84.7g/m3、MgSO4•7H2O is 139.7g/m3、Na2Fe-
EDTA is 44g/m3、Na2B4O7•10H2O is 2.64g/m3、MnSO4•3H2O is 1.408g/m3、ZnSO4•7H2O is 0.242g/m3、
CuSO4•5H2O is 0.077g/m3(NH4)6Mo7O24•4H2O is 0.275g/m3。
Comparative example 1 is formulated: CaNO3•H2O is 945g/m3、KNO3For 809g/m3、KH2PO4For 71.5g/m3、K2SO4For
84.7g/m3、MgSO4•7H2O is 139.7g/m3、Na2Fe-EDTA is 44g/m3、Na2B4O7•10H2O is 2.64g/m3、MnSO4•
3H2O is 1.408g/m3、ZnSO4•7H2O is 0.242g/m3、CuSO4•5H2O is 0.077g/m3(NH4)6Mo7O24•4H2O is
0.275g/m3。
As shown in Table 1, embodiment 1 is formulated and is compared with the cultivation of comparative example 1 Leaf lettuce biological accumulation amount (yield),
Although embodiment 1 formula in nitrogen content it is extremely low, the biological accumulation amount of the Leaf lettuce after water planting almost with 1 water planting of comparative example
The biological accumulation amount of Leaf lettuce afterwards is suitable, and therefore, embodiment 1 is formulated in the case where reducing nitrogen content, does not influence leaf use
The biological accumulation amount of lettuce.
As shown in Table 2, use in the Leaf lettuce of 1 water planting of embodiment that for 12.37mg/g, soluble protein is soluble sugar
2.20mg/g, vitamin C 113.53mg/kg, soluble sugar is 14.63mg/g in the Leaf lettuce of 1 water planting of comparative example, solvable
Property albumen be 2.23mg/g, vitamin C 120.85mg/kg, therefore, the two soluble sugar, soluble protein and ascorbic
Content is almost the same；That is, the formula of the embodiment of the present application 1 has no effect in the case where reducing nitrate (nitrogen)
Leaf lettuce nutritional quality after water planting is reduced without result in Vitamin C content；Meanwhile it being used using the leaf that embodiment 1 is formulated water planting
In lettuce the content of nitrate is only 38.00mg/kg, and uses comparative example 1 to be formulated nitrate in the Leaf lettuce of water planting and contain
Amount has reached 683.24mg/kg, and therefore, 1 nutrient solution prescription of embodiment can substantially reduce nitrate in the Leaf lettuce of water planting
Content.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of Leaf lettuce water planting nutrient solution, which is characterized in that the nutrient solution contains following component: KH2PO4、K2SO4、
MgSO4•7H2O、Na2Fe-EDTA、Na2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、CuSO4•5H2O and (NH4)6Mo7O24•
4H2O；Wherein, the content of each component is: KH2PO4For 52.0-78.0g/m3、K2SO4For 61.6-92.4g/m3、MgSO4•7H2O is
101.6-152.4g/m3、Na2Fe-EDTA is 32-48g/m3、Na2B4O7•10H2O is 1.92-2.88g/m3、MnSO4•3H2O is
1.024-1.536g/m3、ZnSO4•7H2O is 0.176-0.264g/m3、CuSO4•5H2O is 0.056-0.084g/m3(NH4)6Mo7O24•4H2O is 0.2-0.3g/m3。
2. Leaf lettuce water planting nutrient solution according to claim 1, which is characterized in that the chelated iron Na2Fe-EDTA
Using FeSO4•7H2O and EDTA-Na2•2H2O is prepared.
3. Leaf lettuce water planting nutrient solution according to claim 1, which is characterized in that the content of the component is:
KH2PO4For 71.5g/m3、K2SO4For 84.7g/m3、MgSO4•7H2O is 139.7g/m3、Na2Fe-EDTA is 44g/m3、Na2B4O7•
10H2O is 2.64g/m3、MnSO4•3H2O is 1.408g/m3、ZnSO4•7H2O is 0.242g/m3、CuSO4•5H2O is 0.077g/m3
(NH4)6Mo7O24•4H2O is 0.275g/m3。
4. a kind of preparation method of any one of claim 1-3 Leaf lettuce water planting nutrient solution, which is characterized in that specific
Step includes:
(1) KH is weighed by each component content2PO4、K2SO4And MgSO4•7H2O, mixing, adds water and stirs, until being completely dissolved, adds water
Constant volume is configured to concentrate A, and storage is in the cool；
(2) chelated iron Na is pressed2The content of Fe-EDTA weighs FeSO4•7H2O and EDTA-Na2•2H2O, by FeSO4•7H2O and EDTA-
Na2•2H2O is dissolved with water respectively, forms solution and EDTA-Na2Then ferrous sulfate solution is poured slowly into EDTA-Na by solution2
In solution, bevelling stirring in side forms stable chelated iron Na2Fe-EDTA solution；
(3) Na is weighed by each component content2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、CuSO4•5H2O and (NH4)6Mo7O24•4H2O, respectively plus suitable quantity of water dissolves, and pours into above-mentioned Na2It in Fe-EDTA solution, is stirred when pouring into, then plus water is fixed
Hold, concentrate B is made, storage is in the cool；And
(4) sequentially add above-mentioned concentrate A and concentrate B has in the liquid storage tank of water in advance, stirs evenly after adding water constant volume, i.e.,
Obtain Leaf lettuce water planting nutrient solution.
5. a kind of preparation method of any one of claim 1-3 Leaf lettuce water planting nutrient solution, which is characterized in that specific
Step includes:
(1) water of 50% or more cultivation nutrient solution final volume is filled in container；
(2) Na is pressed2The content of Fe-EDTA weighs FeSO4•7H2O and EDTA-Na2•2H2O, by FeSO4•7H2O and EDTA-Na2•
2H2O is dissolved with water respectively, forms ferrous sulfate solution and EDTA-Na2Then ferrous sulfate solution is poured slowly by solution
EDTA-Na2In solution, bevelling stirring in side forms stable chelated iron Na2Fe-EDTA solution；
(3) KH is weighed respectively by formula2PO4、K2SO4、MgSO4•7H2O、Na2B4O7•10H2O、MnSO4•3H2O、ZnSO4•7H2O、
CuSO4•5H2O and (NH4)6Mo7O24•4H2O, and be respectively placed in individual container, then add suitable quantity of water to be dissolved respectively again；
And
(4) solution of each component obtained by step (2) and step (3) to be poured into container, bevelling stirring in side adds water constant volume, stirs evenly,
Up to Leaf lettuce water planting nutrient solution.
6. a kind of application method of any one of claim 1-3 Leaf lettuce water planting nutrient solution, which is characterized in that this makes
With method include: by the Leaf lettuce water planting nutrient solution water planting Leaf lettuce the cultivation later period apply.
7. application method according to claim 6, which is characterized in that the Leaf lettuce water planting nutrient solution is before harvesting
Start within 5-10 days to apply or starts to apply for the 20th ~ 30 day after Leaf lettuce Seeding planting；Preferably, the Leaf lettuce water
Start within training nutrient solution 7 days before harvesting to apply or starts to apply for the 25th day after Leaf lettuce Seeding planting.
8. application method according to claim 6, which is characterized in that before applying the Leaf lettuce water planting nutrient solution,
The nutritious liquid in cultivating facility Central Plains is drained, the Leaf lettuce water planting nutrient solution is then added, after administration time 3-8 days, is mended
Enter clear water；Preferably, the administration time is 5 days.
9. application method according to claim 8, which is characterized in that after filling into clear water, clear water using the time be 2 days with
On.
10. application method according to claim 9, which is characterized in that during application, the Leaf lettuce water planting nutrition
The pH value of liquid maintains within the scope of 6.5-6.8；Preferably, use mass percent concentration for 10% sulfuric acid or 10% hydroxide
Sodium adjusts the pH value of the Leaf lettuce water planting nutrient solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867523.9A CN110452039A (en) | 2019-09-13 | 2019-09-13 | Leaf lettuce water planting nutrient solution and preparation method thereof and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867523.9A CN110452039A (en) | 2019-09-13 | 2019-09-13 | Leaf lettuce water planting nutrient solution and preparation method thereof and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110452039A true CN110452039A (en) | 2019-11-15 |
Family
ID=68491938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910867523.9A Pending CN110452039A (en) | 2019-09-13 | 2019-09-13 | Leaf lettuce water planting nutrient solution and preparation method thereof and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110452039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213182A (en) * | 2021-12-29 | 2022-03-22 | 北京极星农业有限公司 | Adult tomato water culture nutrient solution and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150239788A1 (en) * | 2014-02-24 | 2015-08-27 | Thomas T. Yamashita | Fertilizer Compositions Comprising a Cellulose Nutrient Component and Methods for Using Same |
| CN107459394A (en) * | 2017-08-30 | 2017-12-12 | 欧英俊 | A kind of nutrient solution and its compound method for water planting Chinese little greens |
| CN107556070A (en) * | 2016-06-30 | 2018-01-09 | 魏宝阳 | A kind of oenanthe stolonifera mill water culture nutrient solution and preparation method thereof |
| CN108329092A (en) * | 2018-02-28 | 2018-07-27 | 山东宝源生物科技股份有限公司 | A kind of mill water culture nutrient solution and preparation method thereof of addition earthworm |
| CN108812266A (en) * | 2018-06-07 | 2018-11-16 | 中国农业大学 | A method of reducing water planting Nitrate Content in Lettuce |
-
2019
- 2019-09-13 CN CN201910867523.9A patent/CN110452039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150239788A1 (en) * | 2014-02-24 | 2015-08-27 | Thomas T. Yamashita | Fertilizer Compositions Comprising a Cellulose Nutrient Component and Methods for Using Same |
| CN107556070A (en) * | 2016-06-30 | 2018-01-09 | 魏宝阳 | A kind of oenanthe stolonifera mill water culture nutrient solution and preparation method thereof |
| CN107459394A (en) * | 2017-08-30 | 2017-12-12 | 欧英俊 | A kind of nutrient solution and its compound method for water planting Chinese little greens |
| CN108329092A (en) * | 2018-02-28 | 2018-07-27 | 山东宝源生物科技股份有限公司 | A kind of mill water culture nutrient solution and preparation method thereof of addition earthworm |
| CN108812266A (en) * | 2018-06-07 | 2018-11-16 | 中国农业大学 | A method of reducing water planting Nitrate Content in Lettuce |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213182A (en) * | 2021-12-29 | 2022-03-22 | 北京极星农业有限公司 | Adult tomato water culture nutrient solution and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103193545B (en) | Improve the nutritive medium of tree grafting growth surviving rate | |
| CN102432389B (en) | Iron-rich foliar fertilizer for fruit trees | |
| CN106116790A (en) | A kind of crops selenium-enriching cultivation containing trace element selenium foliage fertilizer and using method thereof | |
| CN102320892B (en) | Fruit tree zinc rich foliar fertilizer | |
| CN109020731A (en) | A kind of dedicated selenium-rich sugar alcohol calcium magnesium Liquid Fertilizer of melon and fruit and the preparation method and application thereof | |
| CN108675887A (en) | One kind is rich in biostimulant substance Water soluble fertilizer and preparation method thereof | |
| CN108586100A (en) | A kind of foliar fertilizer and preparation method thereof | |
| CN107285950A (en) | A kind of liquid organic water-soluble fertilizer and preparation method thereof | |
| CN105016851A (en) | Nutrient solution in soilless culture of camellia and preparation method therefor | |
| CN110452039A (en) | Leaf lettuce water planting nutrient solution and preparation method thereof and application method | |
| CN109912340A (en) | Water planting plant nutrient solution and its application and plant cultivation method | |
| CN105110866A (en) | Amino acid-containing water-soluble fertilizer special for wheat, preparation method and application thereof | |
| CN103848695B (en) | Residual Special-purpose liquid pesticide-containing fertilizer of a kind of tealeaves volume increase desinsection degraded agriculture and preparation method thereof | |
| CN109251082A (en) | A kind of humic acid foliar fertilizer and preparation method thereof | |
| CN106035084A (en) | Subculture medium for blueberries and preparation method of medium | |
| CN105418242A (en) | Pine-tree rosin activating agent and preparation method thereof | |
| CN103880534B (en) | Residual Special-purpose liquid pesticide-containing fertilizer and preparation method thereof falls in a kind of wheat increase yield desinsection | |
| CN109053255A (en) | A kind of liquid fertilizer, preparation method and its application for plant seedlings | |
| CN103524173B (en) | Agricultural tablet for improving rice nutrition | |
| CN107188704A (en) | A kind of special chelating fertilizer of leaf vegetables | |
| CN106673765A (en) | Zinc-rich nutrition liquid and spinach planting method | |
| CN111592409A (en) | Nutrient solution capable of preventing root rot of balcony hydroponic vegetables | |
| CN110041124A (en) | A kind of dedicated zinc-rich nutrient liquid of rice and its method for producing rice rich in zinc | |
| CN109400386A (en) | One kind is containing humic acid water-soluble fertilizer and preparation method thereof | |
| CN1164178C (en) | Se-enriched plant growth regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |
|
| RJ01 | Rejection of invention patent application after publication |