CN104692877A - Special fertilizer for greenhouse watermelons and manufacturing method thereof - Google Patents
Special fertilizer for greenhouse watermelons and manufacturing method thereof Download PDFInfo
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- CN104692877A CN104692877A CN201510099004.4A CN201510099004A CN104692877A CN 104692877 A CN104692877 A CN 104692877A CN 201510099004 A CN201510099004 A CN 201510099004A CN 104692877 A CN104692877 A CN 104692877A
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Abstract
The invention relates to a special fertilizer for greenhouse watermelons and a manufacturing method thereof. The manufacturing method comprises the following steps: uniformly mixing monoammonium phosphate, urea and potassium sulfate, and pulverizing in a pulverizer to obtain a mixture for later use; adding calcium sulfate, humic acid and phosphogypsum into the mixture, blending, stirring uniformly in a stirrer, and granulating to obtain fertilizer granules; and drying the fertilizer granules in a drying machine, cooling in a cooling machine, coating a hardening film on the surface in a coating machine, and screening in a screening machine to obtain the fertilizer granules. The fertilizer provided by the invention lowers the fertilizer rate in the watermelon growth process, enhances the watermelon yield, improves the watermelon quality, and enables the watermelon to have better mouthfeel, higher stress tolerance and higher storage and transportation life. Besides, the manufacturing method provided by the invention is simple to operate, and has favorable practical application value.
Description
[technical field]
The present invention relates to a kind of making method of fertilizer, be specifically related to a kind of greenhouse watermelon dedicated fertilizer and preparation method thereof.
[background technology]
Watermelon is cucurbitaceous plant, originates in Africa, and be a kind of dicotyledonous flowering plant, shape is as tendril, leaf is featheriness, and fruit rinds is smooth, in green or yellow, has decorative pattern, pulp succulence is red or yellow, and watermelon is one of large fruit in the world ten, has the good reputation of the king of fruit in summer.The main component of Watermelon Fruit is sugar, nitrogenous substances, VITAMIN, inorganic salt etc.Dry-matter in Watermelon Fruit can reach 10-11% time ripe, and the sugar in fruit is fructose, dextrose plus saccharose mainly, and VITAMIN is based on vitamins C and carotene, and organic acid is citric acid, oxysuccinic acid and formic acid mainly.Pulp Citrulli juice multi-flavor is sweet, and refrigerant tasty and refreshing, vegetative period is long, deeply likes by human consumer, and this just causes the watermelon phenomenon that supply falls short of demand, in order to address this problem, generally increases the yield of watermelon by fertilising.
In the planting process of tradition watermelon, increased the output of watermelon by fertilising, but these fertilizer are mostly single-element fertilizer, administration unit fertilizer has following shortcoming:
1, a large amount of administration unit fertilizer in farmland, its nutrient can not be absorbed effectively by crop, some chemical substances such as nitrogen, phosphorus, potassium are easily by soil consolidation, form various chemical salinity, accumulate in soil, cause soil nutrient structural imbalance, physical behavior is deteriorated, part plot poisonous metal and harmful levels of pathogens exceed standard, and cause soil property to worsen.
2, partially execute certain chemical fertilizer, cause crop alimentary to be lacked of proper care, in body, part Substance Transformation biosynthesis block, causes product quality to reduce, and the melon and fruit as present is tasted sweetless, and vegetables are tasted not fragrant, and easily rot, and can not deposit, and its reason is all exceed standard to fertilize.
3, owing to applying too much chemical fertilizer, the materials such as soil water soluble nutrient are poured water leaching in underground water and river by rainwater and farmland, cause underground water and the stream pollution of some areas, make underground water, river, lake is eutrophication, the generation of the phenomenon such as cause underground water, river, lake contaminated.
[summary of the invention]
For the problems referred to above, the invention provides a kind of greenhouse watermelon dedicated fertilizer and preparation method thereof, causing because of excessive fertilization that soil shape worsens, quality of watermelon is not up to standard, not resistance in depositing transport and the problem of polluted water resources in order to solve in prior art.
The invention provides a kind of greenhouse watermelon dedicated fertilizer making method, comprise the following steps:
S1: prepare material;
S2: materials allocating, granulation;
S3: obtained fertilizer.
Especially, described step S1 specifically implements according to following steps: by monoammonium phosphate, urea, potassium sulfate mixing, after mixing, be put in pulverizer and pulverize, obtain mixture, stand-by;
Described monoammonium phosphate, urea, potassium sulfate carry out proportioning by 1-1.2: 2.5-2.7: 1.6-1.8.
Especially, described monoammonium phosphate, urea, potassium sulfate carry out proportioning by 1: 2.6: 1.8.
Especially, described step S2 specifically implements according to following steps: add calcium sulfate in the mixture obtained in step S1, humic acid, phosphogypsum allocate, put into stirrer to stir 10 minutes, after making it mix, be transported to granulating disc and carry out granulation, obtaining particle diameter is the fertiliser granulates of 2-5mm;
Described mixture, calcium sulfate, humic acid, phosphogypsum carry out proportioning by 1-1.1: 0.4-0.5: 2.5-2.6: 0.42-0.5.
Especially, described mixture, calcium sulfate, humic acid, phosphogypsum carry out proportioning by 1: 0.45: 2.6: 0.45.
Especially, described step S3 specifically implements according to following steps: be delivered in dryer by the fertiliser granulates obtained in step S2 and dry, be delivered in cooler, cool after 30 minutes, be delivered in coating machine, make fertiliser granulates surface parcel one deck anti-compaction film, be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 2-4mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer;
Described bake out temperature is 110-120 °, and drying time is 25-30min.
Especially, described drying time is 25min.
The present invention also provides a kind of greenhouse watermelon dedicated fertilizer obtained according to aforesaid method, raw material calculates by mass parts, comprise following component: raw material calculates by mass parts, comprises following component: 18-22 part organic matter (soil organic matter, hereinafter referred to as OM), 4-6 part P
2o
5, 8.5-11 part K
2o, 1-3 part CaO; In described fertilizer, the content of N element is 13-18%.
Especially, raw material calculates by mass parts, comprises following component: raw material calculates by mass parts, comprises following component: 20 parts of OM, 5 parts of P
2o
5, 10 parts of K
2o, 2.0 parts of CaO, in described fertilizer, the content of N element is 15%.。
Compared to prior art, greenhouse watermelon dedicated fertilizer of the present invention, through rational proportion, makes every mu only to need to use 45-55kg fertilizer and both can reach nutrient needed for watermelon growing, and the content of these nutrients in fertilizer is the optimum content needed for watermelon growing; Adopt fertilizer of the present invention while reducing rate of fertilizer, improve the output of watermelon, the watermelon made is common fertilizer volume increase 20.39% comparatively; Use fertilizer of the present invention in addition, because the content of wherein nutrient is optimum, improve quality of watermelon, watermelon nutritive ingredient is got a promotion, and mouthfeel is better, and resistance strengthens, more storage tolerance transport, and can not cause the pollution of water resources.In addition, the invention provides making method simple to operate, there is good actual application value.
[accompanying drawing explanation]
Fig. 1 is a kind of greenhouse watermelon dedicated fertilizer of the present invention making method schema.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.
Refer to Fig. 1, the invention provides a kind of greenhouse watermelon dedicated fertilizer making method, comprise the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1-1.2: 2.5-2.7: 1.6-1.8; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
In step S1 of the present invention, monoammonium phosphate, urea, potassium sulfate carry out proportioning by 1-1.2: 2.5-2.7: 1.6-1.8, can guarantee each effective constituent OM, P in fertilizer
2o
5, K
2the content of O, CaO, N element maximizes, thus improves the quality of fertilizer, the content of some effective constituent in fertilizer will be made too much if be greater than this scope, increase production cost and affect the quality of watermelon while affect fertilizer quality; If be less than this scope, by easily causing in fertilizer some, active constituent content is very few again, the effective constituent of fertilizer will be made not up to standard thus affect growth and the quality of watermelon;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1-1.1: 0.4-0.5: 2.5-2.6: 0.42-0.5; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 2-5mm;
In step S2 of the present invention, mixture, calcium sulfate, humic acid, phosphogypsum carry out proportioning by 1-1.1: 0.4-0.5: 2.5-2.6: 0.42-0.5, can guarantee each effective constituent OM, P in fertilizer
2o
5, K
2the content of O, CaO, N element maximizes, thus improves the quality of fertilizer, the content of some effective constituent in fertilizer will be made too much if be greater than this scope, increase production cost and affect the quality of watermelon while affect fertilizer quality; If be less than this scope, by easily causing in fertilizer some, active constituent content is very few again, the effective constituent of fertilizer will be made not up to standard thus affect growth and the quality of watermelon;
The size controlling of fertiliser granulates, at 2-5mm, while facilitating and sieving in subsequent step, is convenient to production and application, thus is enhanced productivity, and reduces production cost;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 is delivered in dryer and dries; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 2-4mm, then is delivered to automatic packing machine and carries out packing, and namely obtain greenhouse watermelon dedicated fertilizer, described bake out temperature is 110-120 °, and drying time is 25-30min;
Bake out temperature can affect the quality of fertilizer, and when bake out temperature is lower than 110 °, when drying time is less than 25min, fertilizer drying is not thorough, and the moisture contained in fertilizer will make fertilizer harden, and in time applying fertilizer, will not easily be decomposed by soil; When temperature is higher than 120 °, humic acid will be made to melt, destroy the effective constituent in fertilizer, thus affect the quality of fertilizer; When bake out temperature is 120 °, when drying time is 30 minutes, fertilizer can be made to dry completely, and beneficiating ingredient in fertilizer can not be destroyed, if now drying time is more than 30min, will production cost be increased.
The size controlling of fertilizer is at 2-4mm, and while control fertilizer quality, be convenient to production and application, during follow-up fertilising, fertilizer is more easily decomposed by soil, is easy to be absorbed by watermelon rice shoot, thus improves the quality of watermelon.
The greenhouse watermelon dedicated fertilizer that the present invention also provides a kind of greenhouse watermelon dedicated fertilizer making method obtained according to aforesaid method to obtain, raw material calculates by mass parts, comprises following component:
18-22 part OM, 4-6 part P
2o
5, 8.5-11 part K
2o, 1-3 part CaO; In described fertilizer, the content of N element is 13-18%.
Embodiment 1:
A kind of greenhouse watermelon dedicated fertilizer making method, comprises the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1: 2.7: 1.8; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1: 0.5: 2.5: 0.5; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 5mm;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 being delivered to temperature is dry 25min in the dryer of 120 °; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 2mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer; The fertilizer material obtained calculates by mass parts, comprises following component: 22 parts of OM, 4 parts of P
2o
5, 11 parts of K
2o, 1 part of CaO; In described fertilizer, the content of N element is 18%.
Embodiment 2:
A kind of greenhouse watermelon dedicated fertilizer making method, comprises the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1.1: 2.5: 1.6; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1.1: 0.4: 2.6: 0.42; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 2mm;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 being delivered to temperature is dry 20min in the dryer of 110 °; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 4mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer; The fertilizer material obtained calculates by mass parts, comprises following component: 18 parts of OM, 6 parts of P
2o
5, 8.5 parts of K
2o, 3 parts of CaO; In described fertilizer, the content of N element is 13%.
Embodiment 3:
A kind of greenhouse watermelon dedicated fertilizer making method, comprises the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1: 2.6: 1.8; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1: 0.45: 2.6: 0.45; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 3mm;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 being delivered to temperature is dry 25min in the dryer of 105 °; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 3mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer; The fertilizer material obtained calculates by mass parts, comprises following component: 20 parts of OM, 5 parts of P
2o
5, 10 parts of K
2o, 2.0 parts of CaO; In described fertilizer, the content of N element is 15%.
Embodiment 4:
A kind of greenhouse watermelon dedicated fertilizer making method, comprises the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1.05: 2.55: 1.7; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1.05: 0.42: 2.5: 0.45; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 2mm;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 being delivered to temperature is dry 22min in the dryer of 102 °; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 2.5mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer; The fertilizer material obtained calculates by mass parts, comprises following component: 19.5 parts of OM, 5.5 parts of P
2o
5, 9.5 parts of K
2o, 2.5 parts of CaO; In described fertilizer, the content of N element is 14.5%.
Embodiment 5:
A kind of greenhouse watermelon dedicated fertilizer making method, comprises the following steps:
S1: prepare material: monoammonium phosphate, urea, potassium sulfate are carried out proportioning by 1.05: 2.55: 1.71.15: 2.65: 1.65; Adopt stack turner to carry out turning material good for proportioning afterwards, after turning, mixing of materials is even; Afterwards the material mixed is put into half wet stock pulverizer to pulverize, obtain mixture, stand-by;
S2: materials allocating, granulation: the mixture obtained in step S1 and calcium sulfate, humic acid, phosphogypsum are allocated by 1.15: 0.48: 2.55: 0.48; Afterwards deployed material is put into horizontal mixer to stir 10 minutes, make it mix; Afterwards the mass transport mixed is carried out granulation to granulating disc, obtaining particle diameter is the fertiliser granulates of 4mm;
S3: obtained fertilizer: the fertiliser granulates obtained in step S2 being delivered to temperature is dry 27min in the dryer of 107 °; Afterwards by dry after mass transport in cooler, cool after 30 minutes; By cooled mass transport in coating machine, make its surface parcel one deck anti-compaction film, harden to prevent fertilizer; Be delivered to sieve apparatus screening afterwards, obtaining particle diameter is the molded fertilizer particle of 3mm, then is delivered to automatic packing machine and carries out packing, namely obtains greenhouse watermelon dedicated fertilizer; The fertilizer material obtained calculates by mass parts, comprises following component: 20.5 parts of OM, 4.5 parts of P
2o
5, 10.5 parts of K
2o, 1.5 parts of CaO; In described fertilizer, the content of N element is 15.5%.
Using method: before greenhouse watermelon field planting during whole ground, evenly spreads fertilizer over the fields fertilizer in earth's surface, then ploughs in soil, whole ground bedding subsequently, and consumption is 45-55Kg/ mu, and the preferred 50Kg/ mu of the present invention, in watermelon growing process, without the need to again applying fertilizer.Below by way of contrast experiment, advantage of the present invention is explained, adopt the comparing result of fertilizer of the present invention (embodiment) and common fertilizer (comparative example) planting greenhouse watermelon as table 1.
Table 1
As shown in Table 1, fertilizer provided by the invention obviously reduces than the amount of application of common fertilizer, but the product of watermelon increases by 20%, and the watermelon shelf time of planting than common chemical fertilizer long 3-5 days, it can thus be appreciated that, in fertilizer provided by the invention, contained nutrient content is the optimum content needed for watermelon growing, the output of watermelon is improve while reducing rate of fertilizer application, the resistance of watermelon is strengthened, more storage tolerance transport, alleviates the burden of peasant, and can not cause the problem of water resource pollution because of excessive use of fertilizer while keeping watermelon balanced in nutrition.
It should be noted that; fertilizer provided by the invention not only can be applicable to the fertilising of planting greenhouse watermelon; the fertilising simultaneously going for any planting plants uses; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a greenhouse watermelon dedicated fertilizer making method, is characterized in that, comprises the following steps:
S1: prepare material;
S2: materials allocating, granulation;
S3: obtained fertilizer.
2. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 1, it is characterized in that, described step S1 specifically implements according to following steps: by monoammonium phosphate, urea, potassium sulfate mixing, after mixing, be put in pulverizer and pulverize, obtain mixture, stand-by;
Described monoammonium phosphate, urea, potassium sulfate carry out proportioning by 1-1.2: 2.5-2.7: 1.6-1.8.
3. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 2, it is characterized in that, described monoammonium phosphate, urea, potassium sulfate carry out proportioning by 1: 2.6: 1.8.
4. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 1, it is characterized in that, described step S2 specifically implements according to following steps: add calcium sulfate in the mixture obtained in step S1, humic acid, phosphogypsum allocate, put into stirrer afterwards to stir 10 minutes, after making it mix, be transported to granulating disc and carry out granulation, obtaining particle diameter is the fertiliser granulates of 2-5mm;
Described mixture, calcium sulfate, humic acid, phosphogypsum carry out proportioning by 1-1.1: 0.4-0.5: 2.5-2.6: 0.42-0.5.
5. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 4, it is characterized in that, described mixture, calcium sulfate, humic acid, phosphogypsum carry out proportioning by 1: 0.45: 2.6: 0.48.
6. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 1, it is characterized in that, described step S3 specifically implements according to following steps: be delivered in dryer by the fertiliser granulates obtained in step S2 and dry, be delivered in cooler, cool after 30 minutes, be delivered in coating machine, make fertiliser granulates surface parcel one deck anti-compaction film, be delivered to sieve apparatus screening afterwards, obtain the molded fertilizer particle that particle diameter is 2-4mm, be delivered to automatic packing machine again and carry out packing, namely obtain greenhouse watermelon dedicated fertilizer;
Described bake out temperature is 110-120 °, and drying time is 25-30min.
7. a kind of greenhouse watermelon dedicated fertilizer making method according to claim 6, it is characterized in that, described drying time is 25min.
8. a greenhouse watermelon dedicated fertilizer obtained according to the arbitrary described a kind of greenhouse watermelon dedicated fertilizer making method of claim 1-7, it is characterized in that, raw material calculates by mass parts, comprises following component: 18-22 part OM, 4-6 part P
2o
5, 8.5-11 part K
2o, 1-3 part CaO; In described fertilizer, the content of N element is 13-18%.
9. a kind of greenhouse watermelon dedicated fertilizer according to claim 8, is characterized in that, raw material calculates by mass parts, comprises following component: 20 parts of OM, 5 parts of P
2o
5, 10 parts of K
2o, 2.0 parts of CaO; In described fertilizer, the content of N element is 15%.
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| CN201510099004.4A CN104692877A (en) | 2015-03-06 | 2015-03-06 | Special fertilizer for greenhouse watermelons and manufacturing method thereof |
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|---|---|---|---|
| CN201510099004.4A CN104692877A (en) | 2015-03-06 | 2015-03-06 | Special fertilizer for greenhouse watermelons and manufacturing method thereof |
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Family
ID=53340477
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|---|---|---|---|---|
| CN102241540A (en) * | 2010-05-11 | 2011-11-16 | 林光德 | Production method of fertilizer special for watermelon |
| CN102643139A (en) * | 2012-04-11 | 2012-08-22 | 安徽瑞然生物药肥科技有限公司 | Active biological medicine fertilizer specially used for watermelon |
| CN103130545A (en) * | 2011-12-02 | 2013-06-05 | 罗国征 | Dedicated compound fertilizer to watermelon |
| CN103172430A (en) * | 2013-04-18 | 2013-06-26 | 陈福清 | Preparation method of special fertilizer for artemisia selengensis |
| CN103833438A (en) * | 2012-11-20 | 2014-06-04 | 吴俊凡 | Formula for producing special compound fertilizer for watermelons with phosphogypsum processed medical stone as filler |
| CN103896664A (en) * | 2014-03-12 | 2014-07-02 | 马登明 | Special fertilizer for watermelons and watermelon planting method |
| CN104447106A (en) * | 2014-11-17 | 2015-03-25 | 砀山县沃福农业发展有限公司 | Special compound fertilizer for watermelons and preparation method of special compound fertilizer |
-
2015
- 2015-03-06 CN CN201510099004.4A patent/CN104692877A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241540A (en) * | 2010-05-11 | 2011-11-16 | 林光德 | Production method of fertilizer special for watermelon |
| CN103130545A (en) * | 2011-12-02 | 2013-06-05 | 罗国征 | Dedicated compound fertilizer to watermelon |
| CN102643139A (en) * | 2012-04-11 | 2012-08-22 | 安徽瑞然生物药肥科技有限公司 | Active biological medicine fertilizer specially used for watermelon |
| CN103833438A (en) * | 2012-11-20 | 2014-06-04 | 吴俊凡 | Formula for producing special compound fertilizer for watermelons with phosphogypsum processed medical stone as filler |
| CN103172430A (en) * | 2013-04-18 | 2013-06-26 | 陈福清 | Preparation method of special fertilizer for artemisia selengensis |
| CN103896664A (en) * | 2014-03-12 | 2014-07-02 | 马登明 | Special fertilizer for watermelons and watermelon planting method |
| CN104447106A (en) * | 2014-11-17 | 2015-03-25 | 砀山县沃福农业发展有限公司 | Special compound fertilizer for watermelons and preparation method of special compound fertilizer |
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