CN108863500A - A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof - Google Patents

A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof Download PDF

Info

Publication number
CN108863500A
CN108863500A CN201710328151.3A CN201710328151A CN108863500A CN 108863500 A CN108863500 A CN 108863500A CN 201710328151 A CN201710328151 A CN 201710328151A CN 108863500 A CN108863500 A CN 108863500A
Authority
CN
China
Prior art keywords
parts
fertilizer
added
weight
calcium
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
Application number
CN201710328151.3A
Other languages
Chinese (zh)
Inventor
梅延安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Fusource Biology Of Biological Technology Co Ltd
Original Assignee
Hubei Fusource Biology Of Biological Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hubei Fusource Biology Of Biological Technology Co Ltd filed Critical Hubei Fusource Biology Of Biological Technology Co Ltd
Priority to CN201710328151.3A priority Critical patent/CN108863500A/en
Publication of CN108863500A publication Critical patent/CN108863500A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B7/00Fertilisers based essentially on alkali or ammonium orthophosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses dedicated water soluble fertilizers of a kind of cucumber and preparation method thereof, belong to water soluble fertilizer technical field.It is made of raw material from the following weight:25-30 parts of urea, 15-25 parts of industrial monoammonium phosphate, 45-55 parts of potassium nitrate, 10-14 parts of calcium nitrate, 0.2-0.4 parts of hydrochloric acid, 60-80 parts of deionized water.Include the following steps:1, deionized water is heated to 95-98 DEG C;2, hydrochloric acid is added according to the ratio, stirs evenly;3, it is added industrial monoammonium phosphate according to the ratio, stirring is uniformly mixed to being completely dissolved;4, potassium nitrate and urea are added according to the ratio, stirring is uniformly mixed to being completely dissolved;5, calcium nitrate is slowly added portionwise according to the ratio, is stirred evenly after the completion of being added;6, cooling finished product after being spray-dried.The advantages that fertilizer has grain fineness good, and water-soluble speed is fast, can improve the yield of cucumber.

Description

A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof
Technical field
The invention belongs to water soluble fertilizer technical field, in particular to the dedicated water soluble fertilizer of a kind of cucumber and its preparation Method.
Background technique
Water soluble fertilizer is the chemical fertilizer for referring to be completely dissolved not residue inside water, its main feature is that content is high (N P and K total content >=50%), water-insoluble is few(≤5%), be suitble to using it is water-soluble spray, one kindization that the modes such as trickle irrigation are applied fertilizer Learn fertilizer.The water soluble fertilizer of present most enterprises production passes through the raw material of heterogeneity using blending technique It crushes post blend and forms final finished together.The technique is disadvantageous in that:The variant component of fertilizer is formed, in water Solution rate is different, in fertilizers input water after, the dissolution of a part of ingredient is very fast, and a part of ingredient dissolution is slower, affects Total solution rate.And phosphate and the calcium salt property in solid-state in fertilizer are stablized, but chemistry is easy to happen after water-soluble Reaction generates crop and is difficult to the calcium phosphate precipitation absorbed, fertilizer efficiency is caused to reduce.
Phosphorus is one of macronutrient necessary to crop growth.It is to form Nuclear extract, lecithin etc. no The element that can lack.P elements can accelerate cell division, promote root system and overground part to accelerate growth, promote bud differentiation, ahead of time Maturation improves fruit quality.Such as the decomposition of the respiration to crop, photosynthesis, sugar and transport etc. play important work With.Phosphorus can promote germination, facilitate bud differentiation, promote to bloom good, and promote mature solid ahead of time;It may additionally facilitate root System's development, makes root system early growth and quick tiller;Phosphorus will affect the normal growth of crop, bloom when lacking, and flower is made to become smaller, and petal is reduced, Pattern is bad;And making that branch is short, leaf is small, germinating power weakens, and the obfuscation of lower blade leaf color is in aubergine.
Calcium is one of middle amount nutrient necessary to crop growth.Calcium has in the formation and holding of fruit quality It plays an important role, especially in the fruit development later period, the formation of how many pairs of fruit qualities of calcium content of fruit and the storage after adopting There is great influence with transport.Perhaps fructuous disorder symptom such as apple bitter pit, cherry dehiscent fruit, the softening of peach, pear Black heart etc. all has substantial connection with calcium deficiency.Calcium is not only a kind of a great number of elements necessary to growth and development of fruit tree, prior It is the regulation that fruit tree growth and development are participated in as the second messenger of extracellular signal and biochemical reactions intracellular.Ca2+-CaM It participates in adjusting differentiation of floral bud of fruit tree, pollen germination, fruit maturation and degeneration-resistant expression etc..
Calcium is one of the most abundant element of content in soil, and fruit tree calcium deficiency is also not meant to soil hypocalcia, even if Growing plants still has that there is a situation where physiological diseases on calacareous soil rich in calcium.Plant calcium deficiency is caused to be primarily due to calcium It is not easy after being absorbed by plants and absorbing and not easily shifted, a large amount of calcium is caused to be present in leaf, it is very few in fruit.Calcium can only be unidirectional Up shift, and influenced by transpiration, usually can there is a phenomenon where the calcium in low-transpiration fruit to flow backwards to branches and leaves, thus fruit It is real easily to show calcium deficiency symptom.Only the fruit losses as caused by calcium deficiency account for about the 20%-30% of yield in cultivation of fruit tree. Therefore, the more crop of calcium (such as banana, citrus) is needed to be easy calcium deficiency, it is necessary to apply External Calcium, and most effective side Method is gone directly by foliage-spray blade and fruit surface, so as to shorten calcium constituent moving distance.
Calcium and phosphorus are all the essential nutrient elements of plant growth and development.Therefore, phosphate fertilizer and calcareous fertilisers are matched in agricultural production Close application be inevitable, but phosphate fertilizer be manured into soil in easily with calcareous fertilisers formed indissoluble synthos, to affect calcium Leaching Character and validity.More studies have shown that the calcium carbonate in soil has stronger solid phosphorus effect, main mechanism is Absorption and precipitating, the calcium carbonate of high-content will be greatly reduced soil P availability.
With the continuous promotion and application of the Integration of Water into Fertilizer, water-soluble fertilizer starts gradually to popularize in China.Currently, China Water-soluble fertilizer be still in infancy,.Water-soluble fertilizer because its is instant, content is high, without hormone the advantages that, be irrigation equipment fertilising Preferred fertilizer.Since its solubility property is good, nutrient content is high, and crop absorbs the features such as fast, is very suitable to automation fertilising.? The country that irrigation technique and automation fertilising are popularized, water-soluble fertilizer are widely used.
In order to allow crop to be absorbed into the nutrient of balance, can be added in general compound fertilizer it is various a large amount of needed for plant growth and Meso- and micro-nutrients, such as nitrogen, phosphorus, potassium, calcium, magnesium, manganese, zinc, boron.But in the liquid phase of fertilizer, phosphate anion is easy It reacts with metal ions such as zinc, calcium, magnesium, forms a large amount of precipitating, substantially reduce phosphorus and calcium ion nutrient availability, from And reduce the plant recovery of nutrient of fertilizer.At the same time, the precipitating of these indissolubles is easy the filter and drop of clogging drip irrigation system Head can cause very big loss to agricultural dropleting enemaing system.
In the fertilizer of high phosphorus, calcium is easy to generate the precipitating of indissoluble with phosphate anion.So fertilizer at home is raw In production, although the upper fertilizer existed simultaneously containing phosphorus calcium in the market, because phosphorus calcium chemically reacts, practical fertilizer efficiency and not to the utmost people Meaning, therefore, exploitation phosphorus, calcium content are higher and can stablize the fertilizer coexisted with important social and economic benefit.
Application No. is 201410642249.2 patents to disclose a kind of preparation side of high-phosphorus, high-calcium Water Soluble Compound fertilizer Method includes the following steps:
Step 1, potash fertilizer, phosphate fertilizer, urea and anticaking agent are pulverized and mixed uniformly;
Step 2, calcareous fertilisers are slowly added to, stirring while adding, keeping temperature of reaction system is 50-80 DEG C, and end of reaction is cooling, both ?.
It, can be preferably by phosphoric acid and calcium oxide when in the phosphate fertilizer including phosphoric acid, including calcium oxide in the calcareous fertilisers Individually reaction, the specific steps are:
1) calcium oxide is slowly added into phosphoric acid, stirring while adding, keeping the temperature of reaction system is 70-80 DEG C, wait react After, reaction solution is distilled into drying, obtains powder 1;
Phosphate fertilizer, potash fertilizer, urea and anticaking agent in addition to phosphoric acid is pulverized and mixed uniformly, be then slowly added into except calcium oxide it Outer calcareous fertilisers, stirring while adding, keeping temperature of reaction system is 50-70 DEG C, and end of reaction is cooling, obtains powder 2;
2) powder 1 and powder 2 are uniformly mixed, both.
Preferably, the high-phosphorus, high-calcium Water Soluble Compound fertilizer is prepared as steps described below:
S1, powdered component non-in solid potash fertilizer and solid phosphate fertilizer is crushed, is uniformly mixed;
S2, side crush urea, while smashed urea is added in the powder of S1, stir evenly;
S3, anticaking agent is added in the powder of S2, is stirred until homogeneous;
S4, remaining potash fertilizer and phosphate fertilizer is added in the powder of S3 respectively, it is stirring while adding to uniform;
S5, calcareous fertilisers are slowly added into the powder of S4, keeping reaction temperature is 50-80 DEG C, end of reaction, both.
It further, can be preferably by phosphoric acid when in the phosphate fertilizer including phosphoric acid, including calcium oxide in the calcareous fertilisers It individually reacts, includes the following steps with calcium oxide:
A, the preparation of powder 1:Calcium oxide is slowly added into phosphoric acid, stirring while adding, keeping the temperature of reaction system is 70- 80 DEG C, to after reaction, reaction solution be distilled drying, obtain powder 1;
The preparation of powder 2:
S1, powdered component non-in solid potash fertilizer and solid phosphate fertilizer is crushed, is uniformly mixed;
S2, side crush urea, while smashed urea is added in the powder of S1, stir evenly;
S3, anticaking agent is added in the powder of S2, is stirred until homogeneous;
S4, remaining potash fertilizer and phosphate fertilizer is added in the powder of S3 respectively, it is stirring while adding to uniform;
S5, calcareous fertilisers are slowly added into the powder of S4, keeping reaction temperature is 50-80 DEG C, and end of reaction obtains powder 2;
B, powder 1 and powder 2 are uniformly mixed, both.
The present invention can be such that phosphate radical coexists with calcium ion by the control of particular order and the technique of special reaction condition In solid phase, after fertilizer is dissolved in water, phosphate radical and calcium ion can be made steadily to coexist in liquid phase simultaneously, avoid generating calcium phosphate Equal indissolubles precipitating, effectively improves the utilization rate of phosphorus calcareous fertilisers material.Specifically, the present invention by calcareous fertilisers in acid condition can with it is highly concentrated It spends phosphoric acid and/or phosphate reaction generates calcium phosphate complex, so that phosphate radical and calcium ion steadily coexist in liquid simultaneously Xiang Zhong avoids generating the indissolubles such as calcium phosphate precipitating.
It has been found that not only needing that anticaking agent is added in the above method and the dissolubility of finished product fertilizers is bad, and phosphorus With the compossibility of calcium not as we said so good.
In addition, there is also the deficiencies for being difficult to stir evenly completely for water-soluble fertilizer in Practical Operation, and because the time limits System, peasant household is also difficult to be completely dissolved until fertilizer and just start fertilising operation after mixing evenly, thus different zones is caused to be applied fertilizer Concentration is inconsistent, to affect effect.
Summary of the invention
To solve the above-mentioned problems, the applicant carries out technological innovation to classic water-soluble production technique for fertilizer, passes through system Determine rational formula, adjust production technology, research and develop that dissolubility in a kind of water is good, and in fertilizer the synchronous dissolution of each nutrient Huang The dedicated water soluble fertilizer of melon.The scheme is as follows:
On the one hand, it the embodiment of the invention provides a kind of dedicated water soluble fertilizer of cucumber, is made of raw material from the following weight: It 25-30 parts of urea, 15-25 parts of industrial monoammonium phosphate, 45-55 parts of potassium nitrate, 10-14 parts of calcium nitrate, 0.2-0.4 parts of hydrochloric acid, goes 60-80 parts of ionized water.
Preferably, water soluble fertilizer provided by the invention is made of raw material from the following weight:30 parts of urea, industrial phosphoric acid 20 parts of monoammonium, 50 parts of potassium nitrate, 12 parts of calcium nitrate, 0.3 part of hydrochloric acid, 75 parts of deionized water.
Wherein, urea is agricultural small particle urea, partial size 0.85mm-2.8mm;Preferably, nitrogen content is 46.4wt%。
Wherein, industrial monoammonium phosphate is crystal, and partial size is < 3.0mm;Preferably, nitrogen content 11wt%, five oxidations two Phosphorus content is 62wt%.
Wherein, potassium nitrate is agricultural powdery or lenticular;Preferably, nitrogen content 13.5wt%, potassium oxide content are 46wt%。
Wherein, calcium nitrate is agricultural lenticular, partial size < 3mm;Preferably, nitrogen content 15.5wt%, calcium content are 19%wt。
Wherein, the concentration of hydrochloric acid is 10-20wt%, it is preferable that its concentration is 15wt%.
Wherein, deionized water is the pure water for eliminating water intermediate ion state impurity.Here it can be regarded as i.e. TDS(Total dissolved solids)Value is lower than the pure water of 5ppm.
On the other hand, the embodiment of the invention also provides the preparation methods of the dedicated water soluble fertilizer of the cucumber, including with Lower step:
1, deionized water 60-80 parts by weight are heated to 95-98 DEG C.
2, hydrochloric acid 0.2-0.4 parts by weight are added, stir evenly, adjusts pH value and is reacted to avoid phosphorus and calcium.
3, industrial monoammonium phosphate 15-25 parts by weight are added, stirring is uniformly mixed to being completely dissolved.
4, potassium nitrate 45-55 parts by weight and urea 25-30 parts by weight are added, stirring is uniformly mixed to being completely dissolved.
5, calcium nitrate 10-14 parts by weight are slowly added portionwise, are stirred evenly after the completion of being added, calcium nitrate must divide when being added It dissipates, bulk is avoided to be added, and be added while must be stirred continuously.
6, cooling finished product after being spray-dried keeps its granularity good, particle is uniformly and water-soluble using being dusted after water-soluble again It is good.
In the above method, by using concentration and reaction condition under acid condition, is controlled, calcium and phosphorus would not occur instead Answer, and later finished product it is water-soluble when will not react.
Wherein, in step 2, the processing time is 10-20 seconds.
Wherein, in step 3, the processing time is 30-40 seconds.
Wherein, in step 4, the processing time is 2-3 minutes.
Wherein, in steps of 5, the processing time is 30-60 seconds, and the additional amount of calcium nitrate per second is less than 0.3 parts by weight.
Wherein, in step 6, the hot blast temperature of spray drying is 150-160 DEG C, is cooled to 60 DEG C or less after dry.
Wherein, in above-mentioned preparation method, addition sequence, additional amount and condition control(Such as time)Etc. needing strict control, It can not arbitrarily change, change and will cause the soluble bad of final finished, do not reach requirement.
To sum up, technical solution bring beneficial effect provided in an embodiment of the present invention is:The embodiment of the invention provides one Kind dedicated water soluble fertilizer of cucumber and preparation method thereof, the fertilizer is by under certain concentration, using under the conditions of specific acid The advantages that specific process and condition, make its product have grain fineness good, and water-soluble speed is fast, and fertilizer nutrient activity is high.It is higher Solution rate, reduce the stirring difficulty of user, and dissolve in a short time more uniform.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention will be made below further detailed Description.
Embodiment 1:
Embodiment 1 provides a kind of dedicated water soluble fertilizer of cucumber, and preparation method includes the following steps:
1,75 parts by weight of deionized water are heated to 95-98 DEG C.
2,0.3 parts by weight of 15wt% hydrochloric acid are added, stir evenly, the used time 15 seconds.
3,20 parts by weight of industrial monoammonium phosphate are added, stirring is uniformly mixed, the used time 40 seconds to being completely dissolved.
4,50 parts by weight of potassium nitrate and 30 parts by weight of urea are added, stirring is uniformly mixed, the used time 160 to being completely dissolved Second.
5,12 parts by weight of calcium nitrate are slowly added portionwise, are stirred evenly after the completion of being added, the used time 45 seconds.
6, the above mixed slurry is run through into nozzle mist and sprays into hothouse, hot blast temperature control is in 150- in hothouse 160 DEG C, slurry meets heated-air drying and drops down onto drier bottom at powder, and hot wind gas containing hydrogen chloride after drying can pass through water-bath and return It receives;Acquired powder enters cooler cooling, is cooled below 60 DEG C and obtains water soluble fertilizer finished product.
Fertilizer application effect:
Application effect 1
Applied to cucumber, each processing uses 10 plants of cucumber, and the beginning top dressing in 25 days after cucumber transplanting, topdressing method is by above-mentioned fertilizer Material and control are diluted with 600 times of water respectively, with water pours, top dressing again behind interval 15 days continuously imposes 4 times, weighs full fertility Phase cucumber yield determines effect of increasing production.
Table 1
Scheme Dosage(It is equivalent) Average single plant yield Theoretical per mu yield
45% general compound fertilizer 120g/ plants 3.8kg 11500kg
Water solubility fertilizer in embodiment 4 80g/ plants 4.7kg 14700kg
As shown in Table 1:Using this water soluble fertilizer cucumber production promoting effect clearly, fertilizer amount reduce 40g/ plants of situations Under, yield increases by 27.82%, has good economic value.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (4)

1. a kind of dedicated water soluble fertilizer of cucumber, which is characterized in that be made of raw material from the following weight:25-30 parts of urea, 15-25 parts of industrial monoammonium phosphate, 45-55 parts of potassium nitrate, 10-14 parts of calcium nitrate, 0.2-0.4 parts of hydrochloric acid, deionized water 60-80 Part.
2. the dedicated water soluble fertilizer of cucumber according to claim 1, which is characterized in that by the raw material system of following parts by weight At:30 parts of urea, 20 parts of industrial monoammonium phosphate, 50 parts of potassium nitrate, 12 parts of calcium nitrate, 0.3 part of hydrochloric acid, 75 parts of deionized water.
3. the dedicated water soluble fertilizer of cucumber according to claim 1, which is characterized in that the concentration of the hydrochloric acid is 10- 20wt%。
4. the preparation method of the dedicated water soluble fertilizer of cucumber as described in claim 1, which is characterized in that including following step Suddenly:
1, deionized water 60-80 parts by weight are heated to 95-98 DEG C;
2, hydrochloric acid 0.2-0.4 parts by weight are added, stir evenly, the processing time is 10-20 seconds;
3, industrial monoammonium phosphate 15-25 parts by weight are added, stirring is uniformly mixed to being completely dissolved, and the processing time is 30-40 Second;
4, potassium nitrate 45-55 parts by weight and urea 25-30 parts by weight are added, stirring is uniformly mixed to being completely dissolved, when processing Between be 2-3 minutes;
5, calcium nitrate 10-14 parts by weight are slowly added portionwise, are stirred evenly after the completion of being added, the processing time is 30-60 seconds, per second The additional amount of calcium nitrate is less than 0.3 parts by weight;
6, cooling finished product after being spray-dried, the hot blast temperature of spray drying are 150-160 DEG C, be cooled to after dry 60 DEG C with Under.
CN201710328151.3A 2017-05-11 2017-05-11 A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof Pending CN108863500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710328151.3A CN108863500A (en) 2017-05-11 2017-05-11 A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710328151.3A CN108863500A (en) 2017-05-11 2017-05-11 A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108863500A true CN108863500A (en) 2018-11-23

Family

ID=64319436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710328151.3A Pending CN108863500A (en) 2017-05-11 2017-05-11 A kind of dedicated water soluble fertilizer of cucumber and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108863500A (en)

Similar Documents

Publication Publication Date Title
CN103073365B (en) Special cotton fertilizer produced by using biochemical fulvic acid through melt granulation and production method of special fertilizer
CN104609972A (en) Dual-chelated foliar special fertilizer
CN103980052A (en) Special fertilizer for fruit trees and preparation method thereof
CN104478551A (en) Water-soluble composite fertilizer with high phosphorus and calcium, and preparation method thereof
CN104496705A (en) Fulvic acid potassium-containing total-nutrient fertilizer for special purpose of potatoes and production method thereof
CN103804092A (en) Special fertilizer for sugarcane and preparation method of fertilizer
CN105367296A (en) Water-soluble carbon enzyme granule fertilizer and preparation method thereof
CN103360146A (en) High potassium washing fertilizer containing amino acid chelated medium and trace elements
CN102260117B (en) High-efficiency compound foliar fertilizer
CN105461465A (en) Chemosynthetic water-soluble fertilizer and production method and application thereof
CN105110892B (en) A kind of a great number of elements Water soluble fertilizer and preparation method thereof
CN104609950A (en) Organic chelating potassium fulvic acid silicon fertilizer and production process thereof
CN102515924A (en) Preparation method of chlorine-free compound fertilizer
CN107827669A (en) A kind of instant humic acid Water soluble fertilizer and preparation method thereof
CN105399520A (en) Liquid fertilizer promoting rooting and preparation method thereof
CN107915554A (en) A kind of special Water soluble fertilizer containing humic acid of trickle irrigation peanut and preparation method thereof
CN107311766A (en) A kind of high amount of liquid calcareous fertilisers and preparation method thereof
CN103086808A (en) Special active humic acid urea slow release compound fertilizer for potatoes and preparation method thereof
CN101717291B (en) Instant fragrant water-flush compound fertilizer and preparation method
CN102249782A (en) Production method of amino acid fertilizer allowing drip irrigation and water punching
CN104446983B (en) A kind of inland salt-soda soil beet special fertilizer and preparation method thereof
CN105130539B (en) A kind of method of administration of stingless cacaine pineapple set meal fertilizer
CN105272601B (en) A kind of water soluble fertilizer and preparation method thereof promoting Fruit containing moderate-element
CN102674935B (en) High-efficiency ultra-concentration chlorine-based compound fertilizer and production method thereof
CN107304138A (en) Special water soluble fertilizer of a kind of watermelon and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20181123

WD01 Invention patent application deemed withdrawn after publication