CN100448812C - Special-purpose controlled-release fertilizer coated with resin for water melon and preparation method thereof - Google Patents
Special-purpose controlled-release fertilizer coated with resin for water melon and preparation method thereof Download PDFInfo
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- CN100448812C CN100448812C CNB2007101155457A CN200710115545A CN100448812C CN 100448812 C CN100448812 C CN 100448812C CN B2007101155457 A CNB2007101155457 A CN B2007101155457A CN 200710115545 A CN200710115545 A CN 200710115545A CN 100448812 C CN100448812 C CN 100448812C
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Abstract
The invention relates to a special controlled release fertilizer for watermelons and a preparation method thereof. The special controlled release fertilizer is synthesized by 4 percent of thermoplastic resin coated potassium nitrate, 5 percent of thermoplastic resin coated potassium nitrate, 4 percent of thermoplastic resin coated carbamide, 5 percent of thermoplastic resin coated carbamide, potassium sulphate compound fertilizer, diammonium phosphate, etc. The special controlled release fertilizer for the watermelons of the invention is served as a base fertilizer to be applied only one time before sowing without dressing, thus acquiring relatively good yield-increasing effect, improving the utilization ratio of the fertilizer and saving labor and time.
Description
Technical field
The present invention relates to a kind of special-purpose controlled-release fertilizer coated with resin for water melon and preparation method thereof, belong to slow/controlled release fertilizer technology field.
Background technology
Growth of watermelon is distributed in China various places.After 20th century the mid-80s, along with the raising of cultivation technique, watermelon production has obtained developing rapidly.Pertinent data shows that the end of the seventies, whole nation watermelon year cultivated area was 450,000 hectares, and the last years of a dynasty or reign eighties, cultivated area reached 1,130,000 hectares, and 2,886 ten thousand tons of ultimate productions have become largest production state in the world.In recent years, China's growth of watermelon area was stabilized in about 1,300,000 hectares, more than 3,000 ten thousand tons of ultimate productions.
Watermelon is a happiness potassium crop, and potassium deficiency can make the watermelon plant strain growth slow, the climing fragility of stem, and leaf margin is withered, and particularly at the expanding stage of melon, potassium deficiency can cause that transfusion tissue is weak, and the synthetic and conveying of nutrient is obstructed, and the accumulation of sugar is affected.Watermelon also has particular requirement to nitrogen, and nitrogenous fertilizer is under-supply, and the slow leaf of plant strain growth is little, few, influences expanding of melon, yields poorly; Nitrogen is crossed cauline leaf excessive growth at most, the late blooming result, and disease resistance is poor.In addition, nitrogen too much also can reduce the sugar degree of melon, influences quality.Watermelon likes absorbing nitric nitrogen, but nitric nitrogen is difficult for being adsorbed by soil colloid, runs off easily.The method one that addresses these problems in fertilising is the consumption that increases fertilizer at present, the 2nd, and chemical fertilizer application is taked on a small quantity repeatedly.Along with the expansion of growth of watermelon area, fertilizer can not be satisfied the demand, and peasant's labour intensity and recruitment cost repeatedly used and increased to chemical fertilizer.The report that watermelon special-purpose control-release fertilizer and preparation method thereof is not arranged at present as yet.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of watermelon special-purpose control-release fertilizer and preparation method thereof, utilize the Nutrient Release of thermoplastic resin membrane wrapping fertilizer, law of nutritive absorption according to watermelon carries out the composite watermelon special-purpose control-release fertilizer that makes simultaneously, and carried out field experiment, obtained good effect.
Watermelon special-purpose control-release fertilizer of the present invention, feed composition is as follows by weight:
150～250 parts in 4% thermoplastic resin membrane wrapping saltpetre
50～150 parts in 5% thermoplastic resin membrane wrapping saltpetre
80～120 parts in 4% thermoplastic resin membrane wrapping urea
30～60 parts in 5% thermoplastic resin membrane wrapping urea
300～350 parts of compound potassium sulfate fertilizers
150～200 parts of diammonium phosphate
0～100 part of vitriolate of tartar
0～10 part in zinc sulfate
0～10 part of borax.
Above-mentioned raw materials is the commercially available prod, wherein:
4% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 4% of a total mass, and model is KTP02 (12-0-42); 5% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 5% of a total mass, and model is KTP03 (12-0-42); 4% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 4% of a total mass, and model is KTP02 (43-0-0); 5% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 5% of a total mass, and model is KTP03 (43-0-0); Above raw material Shandong Kingenta Bio-engineering Stock Co., Ltd. all has to produce and sells, and the numerical value in the product type bracket is the mass percentage content of nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide, and being that this area is conventional indicates.Above raw material also can for example can prepare by the method for CN1603288 (200410035783.3) by prior art for preparing.
In the compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 11%～13%, 17%～19%, 14%～16%, and further preferred nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 12%, 18%, 15%, are mass percent;
Nitrogen, phosphorus pentoxide content are respectively 18%, 46% in the diammonium phosphate, are mass percent;
The content 48-51% mass percent of potassium oxide in the vitriolate of tartar.
The particle diameter of above-mentioned all raw materials is good in 2～4 millimeters scopes all.
Further preferred, the watermelon special-purpose control-release fertilizer, feed composition is as follows, is weight part:
190～200 parts in 4% thermoplastic resin membrane wrapping saltpetre
100～110 parts in 5% thermoplastic resin membrane wrapping saltpetre
110～120 parts in 4% thermoplastic resin membrane wrapping urea
50～60 parts in 5% thermoplastic resin membrane wrapping urea
300～320 parts of compound potassium sulfate fertilizers
170～180 parts of diammonium phosphate
10～20 parts of vitriolate of tartar
4～6 parts in zinc sulfate
4～6 parts of boraxs.
The preparation method of watermelon special-purpose control-release fertilizer of the present invention puts into stirrer together with above-mentioned each raw material and stirred 5～10 minutes, and fully mixing promptly.Then the fertilizer that mixes is sent into metering, wrapping machine measures, packs.
Watermelon special-purpose control-release fertilizer of the present invention is once to apply as base manure prior to seeding when using, and no longer imposes.
Excellent results of the present invention is as follows:
1. nutrient element releasing rule meets watermelon absorption requirement
The law of nutritive absorption of watermelon is, the absorption of nitrogen early increases sharply to stretching the climing phase, and the swollen melon phase peaks; The absorption of potassium is less early stage, sharply rises in the swollen melon phase; Phosphorus absorbs higher at the watermelon growing initial stage, the peak occurs early, tends to be steady stretching the climing phase, and the swollen melon phase absorbs obviously reduces.The watermelon special-purpose control-release fertilizer is based on controlled release nitrogen and controlled release potassium, the thermoplastic resin membrane wrapping control-releasing fertilizer of different membrane wrapping thicknesses carried out rationally composite, and its nutrient element releasing rule and watermelon absorbing rule are matched, and can satisfy the requirement of watermelon to nutrition.
2. nutrient reasonable ratio
Under the general yield level, 261 kilograms of the about absorbed nitrogens of per hectare watermelon, 86.4 kilograms of Vanadium Pentoxide in FLAKESs, 367.2 kilograms of potassium oxides, its ratio is 3: 1: 4.According to another research, to calculate with 2500 kilograms of watermelons of per mu yield, the soil per hectare of medium fertility need be used 172.5 kilograms in nitrogen, 127.5 kilograms of Vanadium Pentoxide in FLAKESs, 150 kilograms of potassium oxides.According to these results of study, the watermelon special-purpose control-release fertilizer has designed nitrogen, phosphorus, potassium ratio prescription.This prescription is applicable to the most of edaphic condition of China, and middle-and-low-yielding fields are selected the high limit of nitrogen, the lower bound of phosphorus potassium for use, and the high-yield field is then opposite.
3. at the nutritional needs of watermelon, selected suitable fertilizer variety in the prescription
Nitrate fertilizer absorbs watermelon and grows favourablely, and ammonium fertilizer then causes the physiological barrier of watermelon easily, and is too much as soil ammonium-state, then influences the absorption of calcium, magnesium and causes watermelon calcium deficiency, magnesium deficiency.But nitric nitrogen is difficult for being adsorbed by soil colloid, runs off easily, and saltpetre is got up with the thermoplastic resin bag in the special-purpose control-release fertilizer, has avoided loss, helps the absorption of watermelon.
4. the minimizing fertilizer application frequency is saved labour cost
Watermelon also need topdress 2～3 times except that using base manure at present, and special-purpose control-release fertilizer adopts the base manure applied once, no longer topdresses later on, has alleviated peasant's labour intensity, has saved the recruitment cost, has improved economic benefit.
Description of drawings
Fig. 1 is the nutrient absorption law graphic representation of embodiment 1 watermelon special-purpose control-release fertilizer nutrient element releasing rule and watermelon, thick line is the fertile nitrogen nutrient releasing rule of a controlled release line, fine rule is the nitrogen nutrition absorbing rule curve of watermelon, and X-coordinate is the watermelon time after planting, and ordinate zou is a nitrogen nutrient.。
Fig. 2 is the nutrient absorption law graphic representation of embodiment 1 watermelon special-purpose control-release fertilizer nutrient element releasing rule and watermelon, thick line is the fertile potassium attainment of a controlled release branch releasing rule line, fine rule is the potassium nutrition absorbing rule curve of watermelon, and X-coordinate is the watermelon time after planting, and ordinate zou is a potassium attainment branch.。
Embodiment
The invention will be further described below in conjunction with accompanying drawing, embodiment and Comparative Examples, but be not limited thereto.
The raw materials used commercially available prod that is in following examples, wherein 4% thermoplastic resin membrane wrapping saltpetre product type is KTP02 (12-0-42); 5% thermoplastic resin membrane wrapping saltpetre product type is KTP03 (12-0-42); 4% thermoplastic resin membrane wrapping urea product model is KTP02 (43-0-0); 5% thermoplastic resin membrane wrapping urea product model is KTP03 (43-0-0); Sell by Shandong Kingenta Bio-engineering Stock Co., Ltd.'s product.In the compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 12%, 18%, 15%, and nitrogen, phosphorus pentoxide content are respectively 18%, 46% in the diammonium phosphate, and the content 48-51% of potassium oxide is mass percent in the vitriolate of tartar.The particle diameter of all raw materials is all in 2～4 millimeters scopes.
Embodiment 1: the watermelon special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 18%, 14%, 18%, are mass percent.Feed composition is as follows:
4% thermoplastic resin membrane wrapping saltpetre 200kg
5% thermoplastic resin membrane wrapping saltpetre 110kg
4% thermoplastic resin membrane wrapping urea 120kg
5% thermoplastic resin membrane wrapping urea 60kg
Compound potassium sulfate fertilizer 320kg
Diammonium phosphate 180kg
Zinc sulfate 5kg
Borax 5kg.
The preparation method puts into stirrer together with above-mentioned each raw material and stirred 5～10 minutes, and fully mixing promptly.Then the fertilizer that mixes is sent into metering, wrapping machine measures, packs.
Embodiment 2: the watermelon special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 15%, 14%, 21%, are mass percent.Feed composition is as follows:
4% thermoplastic resin membrane wrapping saltpetre 200kg
5% thermoplastic resin membrane wrapping saltpetre 110kg
4% thermoplastic resin membrane wrapping urea 80kg
5% thermoplastic resin membrane wrapping urea 30kg
Compound potassium sulfate fertilizer 320kg
Diammonium phosphate 180kg
Vitriolate of tartar 70kg
Zinc sulfate 5kg
Borax 5kg.
Comparative Examples: common compound potassium sulfate fertilizer (total nutrient content 45%).
The effect of above embodiment 1～2 and Comparative Examples is as follows:
Be No. 2, good harvest for the examination variety of watermelon, soil is the loamy texture moisture soil, and planting type is the shed in spring.Press per hectare 1000 kilo sulfuric acid K composite fertilizers in the Comparative Examples; The fertilizer amount of special-purpose control-release fertilizer reduces 20% than Comparative Examples.Among the embodiment all the watermelon special-purpose control-release fertilizers be to be that base manure once applies at watermelon sowing previous crops; In the Comparative Examples compound potassium sulfate fertilizer respectively prior to seeding, stretch climing phase and swollen melon phase and divide and use for three times, each quantity respectively accounts for 1/3.Basal fertilizer applying method is to impose on bottom, sowing row ridge before ridging, and topdressing is to water behind the broadcast application.
| Yield-increasing efficiency (%) | Improve utilization rate of nitrogen fertilizer (%) | Improve potassium utilization rate (%) | Estimate | |
| Embodiment 1 | 8.2 | 21.6 | 13.5 | Effect of increasing production is better, improves utilization rate of fertilizer, the protection environment, and saving of labor, laborsaving is worthy to be popularized. |
| |
5.1 | 22.5 | 14.1 | Effect of increasing production is arranged, improve utilization rate of fertilizer, the protection environment, saving of labor, laborsaving is worthy to be popularized. |
| Comparative Examples | - | - | - | The fertilizer waste is serious, and fertilizer application frequency is many, and recruitment cost height should not be promoted. |
Claims (5)
1, watermelon special-purpose control-release fertilizer is characterized in that feed composition is as follows by weight:
150～250 parts in 4% thermoplastic resin membrane wrapping saltpetre
50～150 parts in 5% thermoplastic resin membrane wrapping saltpetre
80～120 parts in 4% thermoplastic resin membrane wrapping urea
30～60 parts in 5% thermoplastic resin membrane wrapping urea
300～350 parts of compound potassium sulfate fertilizers
150～200 parts of diammonium phosphate
0～100 part of vitriolate of tartar
0～10 part in zinc sulfate
0～10 part of borax;
Described 4% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 4% of a total mass, 5% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 5% of a total mass, 4% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is that 4%, 5% thermoplastic resin membrane wrapping urea of total mass is meant that the coating layer quality is 5% of a total mass;
In the described compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 11%～13%, 17%～19%, 14%～16%, are mass percent.
2, watermelon special-purpose control-release fertilizer as claimed in claim 1, the particle diameter that it is characterized in that all raw materials is all at 2～4 millimeters.
3, watermelon special-purpose control-release fertilizer as claimed in claim 1 is characterized in that feed composition is as follows, is weight part:
190～200 parts in 4% thermoplastic resin membrane wrapping saltpetre
100～110 parts in 5% thermoplastic resin membrane wrapping saltpetre
110～120 parts in 4% thermoplastic resin membrane wrapping urea
50～60 parts in 5% thermoplastic resin membrane wrapping urea
300～320 parts of compound potassium sulfate fertilizers
170～180 parts of diammonium phosphate
10～20 parts of vitriolate of tartar
4～6 parts in zinc sulfate
4～6 parts of boraxs.
4, the preparation method of the described watermelon special-purpose control-release fertilizer of a kind of claim 1 puts into stirrer together with described each raw material and stirred 5～10 minutes, and fully mixing promptly.
5, the application of the described watermelon special-purpose control-release fertilizer of claim 1 is once to apply as base manure prior to seeding, no longer imposes.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101155457A CN100448812C (en) | 2007-12-14 | 2007-12-14 | Special-purpose controlled-release fertilizer coated with resin for water melon and preparation method thereof |
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| CNB2007101155457A CN100448812C (en) | 2007-12-14 | 2007-12-14 | Special-purpose controlled-release fertilizer coated with resin for water melon and preparation method thereof |
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| CN101186546A CN101186546A (en) | 2008-05-28 |
| CN100448812C true CN100448812C (en) | 2009-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172435A (en) * | 2012-12-27 | 2013-06-26 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795928A (en) * | 2012-07-27 | 2012-11-28 | 山东农大肥业科技有限公司 | Special sulfur and resin double-coated humic acid controlled-release fertilizer suitable for culturing potatoes in arched shed |
| CN103113149A (en) * | 2013-03-11 | 2013-05-22 | 宁夏农林科学院 | Fertilizer containing biogas residue special for watermelons and preparation method of fertilizer |
| CN106495880A (en) * | 2016-10-26 | 2017-03-15 | 武汉普瑞丰生物科技有限公司 | A kind of special slow controlled release Blending Fertilizer granular preparation of sweet persimmon |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212249A (en) * | 1997-09-19 | 1999-03-31 | 中国科学院沈阳应用生态研究所 | Long-lasting special-purpose compound mixed fertilizer for corn and rice |
| CN1654439A (en) * | 2005-01-26 | 2005-08-17 | 中国农业科学院土壤肥料研究所 | Method for producing mixed high-concentration slow-release fertilizer |
| CN1986497A (en) * | 2006-12-01 | 2007-06-27 | 王忠生 | Long-acting corn fertilizer |
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- 2007-12-14 CN CNB2007101155457A patent/CN100448812C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212249A (en) * | 1997-09-19 | 1999-03-31 | 中国科学院沈阳应用生态研究所 | Long-lasting special-purpose compound mixed fertilizer for corn and rice |
| CN1654439A (en) * | 2005-01-26 | 2005-08-17 | 中国农业科学院土壤肥料研究所 | Method for producing mixed high-concentration slow-release fertilizer |
| CN1986497A (en) * | 2006-12-01 | 2007-06-27 | 王忠生 | Long-acting corn fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172435A (en) * | 2012-12-27 | 2013-06-26 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
| CN103172435B (en) * | 2012-12-27 | 2014-12-10 | 中国海洋石油总公司 | Controlled-release fertilizer for wax-apple trees and method for preparing same |
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| CN101186546A (en) | 2008-05-28 |
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Owner name: KINGENTA ECOLOGICAL ENGINEERING GROUP CO., LTD. Free format text: FORMER NAME: SHANDONG KINGENTA BIO-ENGINEERING STOCK CO., LTD. |
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Address after: 276700 Linyi Province, Linshu County, Xing County, West Street, No. 19 Patentee after: KINGENTA ECOLOGICAL ENGINEERING GROUP CO., LTD. Address before: 276700 No. 19, Da Xing Dong Street, Linshu County, Shandong Province Patentee before: Shandong Kingenta Bio-engineering Stock Co., Ltd. |