CN100463885C - Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof - Google Patents
Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof Download PDFInfo
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- CN100463885C CN100463885C CNB2008100146493A CN200810014649A CN100463885C CN 100463885 C CN100463885 C CN 100463885C CN B2008100146493 A CNB2008100146493 A CN B2008100146493A CN 200810014649 A CN200810014649 A CN 200810014649A CN 100463885 C CN100463885 C CN 100463885C
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Abstract
The invention relates to a controlled release fertilizer special for sulphur-plus-resin coated sweet potato and the preparation method thereof, which is prepared with 3 percent of sulphur-plus-resin coated compound fertilizer, 4 percent of sulphur-plus-resin coated compound fertilizer, 5 percent of sulphur-plus-resin coated compound fertilizer, 3 percent of sulphur-plus-resin coated urea, 4 percent of sulphur-plus-resin coated potassium nitrate, potassium sulfate compound fertilizer, etc., compound preparations. The controlled release fertilizer special for sulphur-plus-resin coated sweet potato is adopted once applied fertilizer to the bottom of the planting trench before the potato is transplanted without further top dressing. The controlled release fertilizer special for sulphur-plus-resin coated sweet potato of the invention is centrally applied nearby the roots in once applied fertilizing, thereby enhancing the fertilization effect, saving manpower and efforts, and meeting the requirement for nitrogen, phosphor and potassium by potato in the annual growth period and delivering good yield of increase effect.
Description
Technical field
The present invention relates to a kind of special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof, belong to slow/controlled release fertilizer technology field.
Background technology
China is sweet potato producing country the biggest in the world, and cultivated area is only second to paddy rice, wheat and corn more than 6,000,000 hectares at present.Nutrient sweet potato is abundant, and whole body is precious, is suitable for industrial processes, feed and edible.Characteristics such as sweet potato has that adaptability is strong, water consumption is few, high yield, purposes are wide, good in economic efficiency are ideal high-efficiency crops comparatively.Along with the shortage day by day of China soil and water resources, sweet potato produces the more importantly effect of will playing in improving water resource utilization efficiency and agricultural sustainable development.
Sweet potato is longer vegetative period, the output height, and fertilizer requirement is big.In process of growth, sweet potato is to the very sensitivity, particularly nitrogenous fertilizer of applying fertilizer again, and applied once is too much, and the cauline leaf over growth is unfavorable for that stem tuber expands; If the nitrogenous fertilizer deficiency can make the overground part poor growth again, the photosynthate of manufacturing is few, also is unfavorable for high yield.More satisfactory method should be to take a small amount of fertilization principle repeatedly.Also there is the problem of two aspects in this, and the one, sweet potato is to climb climing crop, especially in the growth middle and later periods, the climing ground that almost covers completely of seedling brings very big difficulty for the fertilising operation; The 2nd, the sweet potato growth middle and later periods, big of " the stem root " of upper soll layer prosperity is withered, and mainly is distributed in the darker soil layer from " the potato root " that the piece root bears.If the ditching fertilising not only increases labour intensity, also can cut off root system, influence is to the absorption of fertilizer; If fertilizer is executed on the face of land, then far away apart from root system, also be unfavorable for absorbing.A kind of law of nutritive absorption that had both met sweet potato of current production, near again can be before sweet potato the is transplanted disposable fertilizer variety that applies the root system is the key that addresses the above problem.Up to now, the such sweet potato special-purpose control-release fertilizer of Shang Weiyou is openly reported.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof, utilize the Nutrient Release of sulfur and resin coated fertilizer, carry out the method for composite production sweet potato special-purpose control-release fertilizer simultaneously according to the law of nutritive absorption of sweet potato.And carried out field experiment, obtained good effect.
Technical scheme of the present invention is as follows:
Special control-release fertilizer for sulfur and resin coated sweet potato of the present invention, feed composition is as follows, is weight part:
130～200 parts of 3% sulfur and resin coated composite fertilizers
50～150 parts of 4% sulfur and resin coated composite fertilizers
120～200 parts of 5% sulfur and resin coated composite fertilizers
50～150 parts in 3% sulfur and resin coated urea
80～200 parts in 4% sulfur and resin coated saltpetre
250～350 parts of compound potassium sulfate fertilizers
20～100 parts in urea
0～10 part in zinc sulfate.
Above-mentioned raw materials is the commercially available prod, wherein:
3% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 3% (the sulphur film quality is 20% of a total mass, down together) of total mass, and model is KPS03 (11-11-11); 4% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 4% of a total mass, and model is KPS04 (11-11-11); 5% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 5% of a total mass, and model is KPS05 (11-11-11); 3% sulfur and resin coated urea is meant that the resin molding quality is 3% of a total mass, and model is KPS03 (34-0-0); 4% sulfur and resin coated saltpetre is meant that the resin molding quality is 4% of a total mass, and model is KPS04 (10-0-34); Above raw material Shandong Kingenta Bio-engineering Stock Co., Ltd. produces and sells, and the numerical value in the product type bracket is the mass percentage content of N, P, K, and being that this area is conventional indicates.Above raw material also can be by the method preparation of CN1569774 (200410024050.X).
In the compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 14%～16%, 14%～16%, 14%～16%, and further preferred nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 15%, 15%, 15%, are mass percent.
Nitrogen content 45～48% mass percents in the urea.
The particle diameter of above-mentioned all raw materials is good in 2～4 millimeters scopes all.
Further preferred, the sweet potato special-purpose control-release fertilizer, feed composition is as follows, is weight part:
135～145 parts of 3% sulfur and resin coated composite fertilizers
130～140 parts of 4% sulfur and resin coated composite fertilizers
130～140 parts of 5% sulfur and resin coated composite fertilizers
55～65 parts in 3% sulfur and resin coated urea
190～200 parts in 4% sulfur and resin coated saltpetre
290～310 parts of compound potassium sulfate fertilizers
25～35 parts in urea
4～6 parts in zinc sulfate.
The preparation method of sweet potato special-purpose control-release fertilizer of the present invention puts into stirrer with above-mentioned each raw material together by proportioning and stirred 5～10 minutes, and fully mixing promptly.Then the fertilizer that mixes is sent into metering, wrapping machine measures, packs.
The application of sweet potato special-purpose control-release fertilizer of the present invention, this fertilizer are the disposable planting furrow bottoms that applies before sweet potato is transplanted, and needn't go later on again and topdress.
Technical characterstic of the present invention is to utilize the fertilizer of different coating quantities, accurately controls nitrogen, phosphorus, potassium and discharges by the requirement of sweet potato growth nutrient absorbing rule in different periods.
Excellent results of the present invention is as follows:
1. nutrient discharges and meets sweet potato absorption requirement
The different growth phases of sweet potato have notable difference to absorption rate, the quantity of nitrogen, phosphorus, potassium, and it is very fast that growth is preceding, absorb nitrogen mid-term, and slow down in the absorption of piece root expanding stage; Absorbing state to potassium is that growth is less early stage, and piece root expanding stage absorbs at most; Though the absorption quantity in early stage to phosphorus is few, can not lack, otherwise influence root system development.Special-purpose control-release fertilizer utilizes fertile composite the forming of nitrogen, phosphorus, potassium controlled release of different time of releasing just according to the absorbing rule of sweet potato to nitrogen, phosphorus, potassium, can satisfy the special requirement of the different growth phases of sweet potato to nitrogen, phosphorus, potassium three elements.
2. avoid nitrogenous fertilizer too much to cause the sweet potato underproduction in a short time
Sweet potato is responsive especially to nitrogenous fertilizer at later stages, and nitrogenous fertilizer is too much, and the cauline leaf over growth is unfavorable for that stem tuber expands; The nitrogenous fertilizer deficiency also can make leaf early ageing, and the photosynthate of manufacturing reduces, and causes the underproduction.So the quick-acting nitrogenous fertilizer of using is at present used at later stages must be very careful.The nitrogen of special-purpose control-release fertilizer slowly discharges, and can not cause excessive concentration in short-term, and this both can guarantee a certain amount of nitrogen supply, prevented leaf early ageing, also was unlikely to make the cauline leaf over growth.
3. fertilizer is concentrated to impose near the root system, improved fertilization effect
The root system of sweet potato is different from general crop, growth early stage its root absorption nutrient by growing from stem, to the middle and later periods, these root systems have expands into the potato piece, what have is withered.At this moment nutrient absorbing is relied on the root system that grows from potato piece top.These roots bury darker, and the fertilizer that the sweet potato growth later stage imposes on the face of land is difficult to absorb.Special-purpose control-release fertilizer is disposable executing in the capable bottom of planting before transplanting, and near apart from root system, fertilization effect is good.
4. save labor, save labour cost
Sweet potato is to climb climing crop, topdresses and seedling need be carried out after climing the opening in the growth middle and later periods, and labour intensity is big.Special-purpose control-release fertilizer adopts single fertilization, greatly reduces peasant's labour intensity, has saved the recruitment cost, has improved economic benefit.
Embodiment
The invention will be further described below in conjunction with embodiment and Comparative Examples, but be not limited thereto.
The raw materials used commercially available prod that is in following examples, wherein, 3% sulfur and resin coated composite fertilizer model is KPS03 (11-11-11); 4% sulfur and resin coated composite fertilizer model is KPS04 (11-11-11); 5% sulfur and resin coated composite fertilizer model is KPS05 (11-11-11); 3% sulfur and resin coated urea model is KPS03 (34-0-0); 4% sulfur and resin coated saltpetre model is KPS04 (10-0-34); Above raw material is Shandong Kingenta Bio-engineering Stock Co., Ltd.'s product and sells.Nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 15%, 15%, 15% in the compound potassium sulfate fertilizer, and nitrogen content 45～48% in the urea, are mass percent.The particle diameter of above-mentioned all raw materials is all in 2～4 millimeters scopes.
Embodiment 1: the sweet potato special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 14%, 9%, 16%, are mass percent.Feed composition is as follows:
3% sulfur and resin coated composite fertilizer 140kg
4% sulfur and resin coated composite fertilizer 135kg
5% sulfur and resin coated composite fertilizer 135kg
3% sulfur and resin coated urea 60kg
4% sulfur and resin coated saltpetre 195kg
Compound potassium sulfate fertilizer 300kg
Urea 30kg
Zinc sulfate 5kg.
Embodiment 2: the sweet potato special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 18%, 9%, 12%, are mass percent.Feed composition is as follows:
3% sulfur and resin coated composite fertilizer 140kg
4% sulfur and resin coated composite fertilizer 135kg
5% sulfur and resin coated composite fertilizer 135kg
3% sulfur and resin coated urea 120kg
4% sulfur and resin coated saltpetre 85kg
Compound potassium sulfate fertilizer 300kg
Urea 80kg
Zinc sulfate 5kg.
Embodiment 3: the sweet potato special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 18%, 9%, 12%, are mass percent.Feed composition is as follows:
3% sulfur and resin coated composite fertilizer 180kg
4% sulfur and resin coated composite fertilizer 55kg
5% sulfur and resin coated composite fertilizer 175kg
3% sulfur and resin coated urea 120kg
4% sulfur and resin coated saltpetre 85kg
Compound potassium sulfate fertilizer 300kg
Urea 80kg.
Comparative Examples: common compound potassium sulfate fertilizer (total nutrient content 45%),
The effect of above embodiment 1～3 and Comparative Examples is as follows:
For the examination sweet potato variety is No. 15, Ji potato, and soil is brown earth.900 kilograms of common compound potassium sulfate fertilizers of per hectare in the Comparative Examples; The fertilizer amount of special-purpose control-release fertilizer is 720 kilograms of per hectares.Whole special-purpose control-release fertilizers are the bottoms that once apply planting furrow before sweet potato is transplanted among the embodiment, with the rice shoot of planting after the part mixing with soil.40% of compound potassium sulfate fertilizer weight with the same time of special-purpose control-release fertilizer, use with method, all the other 40% and 20% are used planting to topdress in back about 60 days and 100 days respectively in the Comparative Examples, and fertilizing method is that broadcast application is waited rainfall behind soil surface.
| Yield-increasing efficiency (%) | Improve utilization rate of nitrogen fertilizer (%) | Estimate | |
| Embodiment 1 | 12.3 | 21.6 | Effect of increasing production is good, improves utilization rate of fertilizer, and saving of labor, laborsaving is worthy to be popularized. |
| Embodiment 2 | 9.5 | 18.9 | Effect of increasing production is better, improves utilization rate of fertilizer, and saving of labor, laborsaving is worthy to be popularized. |
| Embodiment 3 | 7.2 | 13.4 | Effect of increasing production is arranged, improve utilization rate of fertilizer, saving of labor, laborsaving can promote. |
| Comparative Examples | - | - | Utilization rate of fertilizer is low, and recruitment cost height should not be promoted. |
Claims (5)
1. the sweet potato special-purpose control-release fertilizer is characterized in that feed composition is as follows, is weight part:
130～200 parts of 3% sulfur and resin coated composite fertilizers
50～150 parts of 4% sulfur and resin coated composite fertilizers
120～200 parts of 5% sulfur and resin coated composite fertilizers
50～150 parts in 3% sulfur and resin coated urea
80～200 parts in 4% sulfur and resin coated saltpetre
250～350 parts of compound potassium sulfate fertilizers
20～100 parts in urea
0～10 part in zinc sulfate;
Described 3% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 3% of a total mass, and model is KPS03, and the mass percentage content of N, P, K is respectively 11%, 11%, 11%; Described 4% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 4% of a total mass, and model is KPS04, and the mass percentage content of N, P, K is respectively 11%, 11%, 11%; Described 5% sulfur and resin coated composite fertilizer is meant that the resin molding quality is 5% of a total mass, and model is KPS05, and the mass percentage content of N, P, K is respectively 11%, 11%, 11%; Described 3% sulfur and resin coated urea is meant that the resin molding quality is 3% of a total mass, and model is KPS03, and the mass percentage content of N, P, K is respectively 11%, 0,0; Described 4% sulfur and resin coated saltpetre is meant that the resin molding quality is 4% of a total mass, and model is KPS04, and the mass percentage content of N, P, K is respectively 10%, 0,34%; The sulphur film quality is 20% of total mass in the above-described raw material, and Shandong Kingenta Bio-engineering Stock Co., Ltd. produces and sells;
In the described compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 14%～16%, 14%～16%, 14%～16%, all are weight percentage.
2. sweet potato 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. sweet potato special-purpose control-release fertilizer as claimed in claim 1 is characterized in that feed composition is as follows, is weight part:
135～145 parts of 3% sulfur and resin coated composite fertilizers
130～140 parts of 4% sulfur and resin coated composite fertilizers
130～140 parts of 5% sulfur and resin coated composite fertilizers
55～65 parts in 3% sulfur and resin coated urea
190～200 parts in 4% sulfur and resin coated saltpetre
290～310 parts of compound potassium sulfate fertilizers
25～35 parts in urea
4～6 parts in zinc sulfate.
4. the preparation method of the described sweet potato special-purpose control-release fertilizer of claim 1 puts into stirrer with described each raw material together by proportioning and stirred 5～10 minutes, and fully mixing promptly.
5. the application of the described sweet potato special-purpose control-release fertilizer of claim 1, this fertilizer are the disposable planting furrow bottoms that applies before sweet potato is transplanted, and needn't go later on again and topdress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100146493A CN100463885C (en) | 2008-02-25 | 2008-02-25 | Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100146493A CN100463885C (en) | 2008-02-25 | 2008-02-25 | Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101234940A CN101234940A (en) | 2008-08-06 |
| CN100463885C true CN100463885C (en) | 2009-02-25 |
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| CNB2008100146493A Active CN100463885C (en) | 2008-02-25 | 2008-02-25 | Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786331A (en) * | 2011-05-20 | 2012-11-21 | 施可丰化工股份有限公司 | Sweet potato special compound fertilizer suitable for potato area in middle and lower Yangtze River and application method thereof |
| CN103772074B (en) * | 2013-12-26 | 2015-08-19 | 青岛农业大学 | A kind of long-acting dry farming special fertilizer for sweet potato and preparation method thereof |
| CN109651021B (en) * | 2019-01-31 | 2022-01-18 | 山东农大肥业科技有限公司 | Sweet potato all-source efficient slow-release ecological fertilizer suitable for plain areas |
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 |
| CN1569774A (en) * | 2004-04-27 | 2005-01-26 | 山东农业大学 | Heavy polymer coated slow-release fertilizer with sulfide as bottom coat |
| CN1986497A (en) * | 2006-12-01 | 2007-06-27 | 王忠生 | Long-acting corn fertilizer |
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2008
- 2008-02-25 CN CNB2008100146493A patent/CN100463885C/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 |
| CN1569774A (en) * | 2004-04-27 | 2005-01-26 | 山东农业大学 | Heavy polymer coated slow-release fertilizer with sulfide as bottom coat |
| CN1986497A (en) * | 2006-12-01 | 2007-06-27 | 王忠生 | Long-acting corn fertilizer |
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| CN101234940A (en) | 2008-08-06 |
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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. |