CN104086291A - Preparation method of fertilizer containing high molecular composition - Google Patents
Preparation method of fertilizer containing high molecular composition Download PDFInfo
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- CN104086291A CN104086291A CN201410301524.4A CN201410301524A CN104086291A CN 104086291 A CN104086291 A CN 104086291A CN 201410301524 A CN201410301524 A CN 201410301524A CN 104086291 A CN104086291 A CN 104086291A
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Abstract
The invention relates to a preparation method of a fertilizer containing a high molecular composition. The preparation method comprises the following steps: adding an organic or inorganic granulated fertilizer into a pelletizer; under the condition that the pelletizer continuously rotates, uniformly spraying a high molecular composition solution so that the high molecular composition solution is uniformly distributed on the surface of the organic or inorganic granulated fertilizer and no plus residual glue solution is left in the pelletizer, wherein the high molecular composition is prepared from the following components in percentage by weight: 10-20% of guar gum, 20-30% of nonionic polyacrylamide, 20-30% of potassium polyacrylate and 20-30% of polyvinyl alcohol; spraying calcium-containing powder on the surface of the granulated fertilizer and continuously rotating till the organic or inorganic granulated fertilizer is uniformly coated; finally, drying and sieving the coated granulated fertilizer to prepare the self-cured film-coated controlled-release fertilizer. The fertilizer can increase the movement speed and the movement distance of phosphatic fertilizer, reduce the probability that the phosphatic fertilizer is cured, enhance the water retentivity and the nutrient preserving capability and improve the utilization ratio of the chemical fertilizer.
Description
Technical field
The present invention relates to a kind of preparation method of fertilizer of pbz polymer composition, belong to agrochemical Application Areas.
Background technology
Existing high molecular polymer increases the utilization ratio of fertilizer, its product facility production cost relative to complex process is high, market is difficult to accept, and abundant experimental results shows that the phosphorus content in some soil is very high, but crop is very low to the utilization ratio of phosphorus, be only 10-25%, major cause is that phosphate fertilizer movability in soil is very little and easily by chemistry, fixed.The miles of relative movement of phosphorus in soil is generally 1-3cm, and the overwhelming majority concentrates on fertilising point around within the scope of 0.5cm.Because phosphate fertilizer is very low in the utilization ratio of this season, low transformation of phosphorus fertilizer utilization ratio, also restricts plant to the absorbing of other elements, and is one of reason affecting chemical fertilizer overall utilization rate.
The low deficiency of bringing of utilization ratio that makes up phosphate fertilizer by simple increase Phosphorus Fertilizer Rates, can make again ion how useful in soil by phosphate fertilizer, be fixed as the ion of the elements such as calcium, magnesium, iron, manganese, zinc, copper, lose due ionic activity, aggravated the unbalance of plant nutrient in soil, reduce crop yield, deteriorated crop quality; Because chemical fertilizer utilization ratio is low, for realizing per unit area yield high yield, have to strengthen consumption, result causes environmental pollution, the wasting of resources.
Summary of the invention
The present invention is directed to the sustained-controll-release fertiliser above shortcomings that occur on current fertilizer market, a kind of preparation method of fertilizer of pbz polymer composition is provided.This fertilizer has obviously increased the moisture content in soil, and water retention improves, and then has improved the aqueous solution content of chemical fertilizer in soil, and root system of plant often only absorbs the chemical fertilizer in the aqueous solution, therefore, is conducive to crop absorbing chemical fertilizer.
The present invention, by this polymeric composition coating, delays the release of available nitrogen potassium composition, reaches the effect of slow-release or control-release fertilizer.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of preparation method of fertilizer of pbz polymer composition, comprises the following steps:
Step (1) adds organic or inorganic granulated fertilizer in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of organic or inorganic granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%～20%, non-ionic polyacrylamide 20%～30%, polyacrylic acid potassium 20%～30%, polyvinyl alcohol 20%～30%;
Step (3), sprays calcic powder in granulated fertilizer surface, continues rotation until organic or inorganic granulated fertilizer is evenly coated; Finally, the granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.
The invention has the beneficial effects as follows: fertilizer prepared by the method can increase translational speed and the miles of relative movement of phosphate fertilizer, reduce the probability that phosphate fertilizer is cured, increase water-retentivity and nutrient preserving capability, improve chemical fertilizer utilization ratio, compare with other chemical fertilizer, in the situation that reducing fertilizer amount, realize per unit area yield volume increase, increase farmers' income, reduce pollution by chemical fertilizer, economize on resources.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described fertilizer be formulation fertilizer containing nitrogen, containing one or any several mixture in potassic fertilizer and nitrogenous-potash fertiliser material.
Further, the mixture that described calcic powder is calcium oxide and dehydrated gypsum powder;
Further, the ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65～70:2～4:21～23;
Further, the concentration of described polymeric composition solution is 10～15%.
Further, when spraying calcic powder, can also spray into together humic acid powder, described in the weight of the humic acid powder that sprays into be less than 3% of all substances gross weight.
Polymeric composition of the present invention does not form environmental pollution for soil, and environmental protection is completely residual without nuisance, can effectively control the release of nitrogenous fertilizer; Increase the transport property of phosphoric (inorganic phosphorus) in soil in chemical fertilizer, improve phosphate fertilizer utilization efficiency, to increasing crop yield, improving crop quality and environmental protection, energy-conservation very important.
Embodiment
Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds organic or inorganic granulated fertilizer in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of organic or inorganic granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%～20%, non-ionic polyacrylamide 20%～30%, polyacrylic acid potassium 20%～30%, polyvinyl alcohol 20%～30%;
Step (3), sprays calcic powder in granulated fertilizer surface, continues rotation until organic or inorganic granulated fertilizer is evenly coated; Finally, the granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.
Described polymeric composition can prepare by following steps: take by weight percentage following material: guar gum 10%～20%, non-ionic polyacrylamide 20%～30%, polyacrylic acid potassium 20%～30%, polyvinyl alcohol 20%～30%; Adopt dry powder blend method to mix the material taking.After each component weighs on request, in duplex taper dry powder blender or vertical dry powder blender, being uniformly mixed, can be conventional dry powder blend method.
Embodiment 1
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds nitrogenous granulated fertilizer in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of nitrogenous granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%, non-ionic polyacrylamide 20%, polyacrylic acid potassium 20%, polyvinyl alcohol 20%; The concentration of described polymeric composition solution is 10%;
Step (3), sprays the mixture of calcium oxide and dehydrated gypsum powder in nitrogenous granulated fertilizer surface, continues rotation until nitrogenous granulated fertilizer is evenly coated; Finally, the nitrogenous granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.The ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65:2:21;
The fertilizer of a kind of pbz polymer composition that embodiment 1 makes, on wheat, can make wheat increase yield 15% by the fertilizer application of this pbz polymer composition.Experimental field be selected in Henan Province's Shangqiu City, the nitrogen content of the fertilizer of the pbz polymer composition making according to embodiment 1 is lower than common urea nitrogen content, and it is consistent with common urea that consumption during actual using is amounted to nitrogen content, and other fertilizer amount is in full accord.The wheat seeding of using Henan Province's Shangqiu City presents following distinguishing feature: seedling is strong, Miao Qing, height of seedling; The time of turning green can shift to an earlier date 3 days; Growing way is vigorous; The generous hypertrophy of blade, leaf look presents deep green; Well developed root system, secondary root is many; Without invalid small ear, it is very full that the wheat head seems, the percentage of earbearing tiller improves 12%; Plant height can exceed 8～10 centimetres; And relative narrower of the wheat leaf blade of using common urea, color is light green, and has the situation of lodging to occur.The 5 mu of average mu of model field spike numbers 550,000,30 of grain number per spikes, thousand seed weight 40g, per mu yield is 552 kilograms, contrast field is 478 kilograms, 74 kilograms of per mu yield synergy, mu volume increase 15%.
Embodiment 2
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds formulation fertilizer containing nitrogen, contains potassic fertilizer and nitrogenous-potash fertiliser material in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of nitrogenous granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%, non-ionic polyacrylamide 30%, polyacrylic acid potassium 20%, polyvinyl alcohol 20%; The concentration of described polymeric composition solution is 10%;
Step (3), sprays the mixture of calcium oxide and dehydrated gypsum powder in nitrogenous granulated fertilizer surface, continues rotation until nitrogenous granulated fertilizer is evenly coated; Finally, the nitrogenous granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.The ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 70:2:21.
The slow-release time of the fertilizer of the pbz polymer composition that embodiment 2 makes is 3 months, and the fertilizer application of this pbz polymer composition, on paddy rice, can be made to increasing production of rice 14% in the situation of identical nitrogen content.In Mudanjiang pipe office of Heilongjiang Reclamation Area general bureau and Liaoning, the ground test such as Anhui, Yunnan shows that fertilizer effect of increasing production on semilate rice of pbz polymer composition is obvious.Due to the controlled-release function of fertilizer to nutrient, guarantee the steady supply of middle and later periods nutrient, grain number per spike, real grain number, setting percentage all increase.Effect of increasing production is obvious, is waiting under nitrogen amount condition, and amount of increase in production, between 12%～15%, is reducing the effect of increasing production that still can keep stable yields under 26% nitrogen consumption (urea nitrogen content 34% of pbz polymer composition) condition or obtain 5-10%.
Embodiment 3
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds containing potassic fertilizer and nitrogenous-potash fertiliser material in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of nitrogenous granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%, non-ionic polyacrylamide 20%, polyacrylic acid potassium 30%, polyvinyl alcohol 20%; The concentration of described polymeric composition solution is 15%;
Step (3), sprays the mixture of calcium oxide and dehydrated gypsum powder in nitrogenous granulated fertilizer surface, continues rotation until nitrogenous granulated fertilizer is evenly coated; Finally, the nitrogenous granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.The ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65:4:23.
The slow-release time of the fertilizer of the pbz polymer composition that embodiment 3 makes is 3 months, and the fertilizer application of this pbz polymer composition, on peanut, can be made to peanut yield increasing 23%.
Experimental field be selected in Daming County, Hebei province.Adopt field test method, with regard to the fertilizer of pbz polymer composition, the effect of increasing production and improying productivity of peanut is applied fertilizer and compared research with rational application of fertilizers and peasant habit.Adopt 5 plot, each plot reserves 1/3rd for Common compound fertilizer, the slow-release or control-release fertilizer that three/dual-purpose embodiment 3 makes.Result shows, under equal working condition, the fertilizer N-P-K content of pbz polymer composition is consistent with Common compound fertilizer.Slow-release or control-release fertilizer is processed peanut per plant branch number, the full fruit of individual plant number, all kinds of fruits are heavy and hundred benevolence are processed 0.6,2.7 of increases, 7.3g and 3.2g than habits fertilization heavily respectively.Slow-release or control-release fertilizer is processed compared with habits fertilization and is processed and increase pod 9.3%, increases seed benevolence 23%, and economic benefit increases by 3516 yuan/hm2.The fertilizer of pbz polymer composition is disposable employed simultaneously, has alleviated labour intensity, on peanut is produced, has good application value.
Embodiment 4
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds formulation fertilizer containing nitrogen and nitrogenous-potash fertiliser material in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of nitrogenous granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 20%, non-ionic polyacrylamide 30%, polyacrylic acid potassium 30%, polyvinyl alcohol 20%; The concentration of described polymeric composition solution is 15%;
Step (3), sprays the mixture of calcium oxide and dehydrated gypsum powder in nitrogenous granulated fertilizer surface, continues rotation until nitrogenous granulated fertilizer is evenly coated; Finally, the nitrogenous granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.The ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65:2:23.
The fertilizer slow release time of the pbz polymer composition that embodiment 4 makes is 2.5 months, by the fertilizer application of this pbz polymer composition on corn, the in the situation that of identical nitrogen content, can make corn yield increasing 16%, as identical in total fertilization amount, the actual nitrogen content of urea of the pbz polymer composition in embodiment 4 is 35% left and right, still can keep 6% volume increase, save nitrogenous fertilizer 24%.In Yongnian County, Hebei province test-results, show, corn is used 300 kilograms in per hectare, and the urea of pbz polymer composition does not topdress in situation, and corn hectare output is 12110 kilograms, the check plot output of executing 300 kilograms of common ureas is 12000 kilograms, volume increase 7.0%.The expert who participates in test unanimously thinks, milpa density equalization, illustrate that slow-release carbamide does not burn seedling, and the greenery time length is long, and the later stage does not take off fertilizer.Meanwhile, brainstrust is thought, although the urea urea of pbz polymer composition is lower than common urea containing nitrogen concentration (34%), also performance volume increase, illustrates that the absorption rate of nitrogen has improved, and for alleviating, nitrogenous fertilizer pollutes, protection of the environment is significant.
Embodiment 5
The preparation method of the fertilizer of a kind of pbz polymer composition of the present invention, comprises the following steps:
Step (1) adds formulation fertilizer containing nitrogen, contains potassic fertilizer and nitrogenous-potash fertiliser material in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of nitrogenous granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 20%, non-ionic polyacrylamide 25%, polyacrylic acid potassium 25%, polyvinyl alcohol 25%; The concentration of described polymeric composition solution is 15%;
Step (3), sprays the mixture of calcium oxide and dehydrated gypsum powder in nitrogenous granulated fertilizer surface, continues rotation until nitrogenous granulated fertilizer is evenly coated; Finally, the nitrogenous granulated fertilizer being wrapped by is dried and sieved, can be made into fertilizer.The ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65:4:23; When spraying calcic powder, also spray into together humic acid powder, described in the weight of the humic acid powder that sprays into be 2% of all substances gross weight.
The slow-release time of the fertilizer of the pbz polymer composition that embodiment 5 makes is 3 months, by the fertilizer application of this pbz polymer composition on cotton, its field capacity is than the blank soil that does not contain the polymer synergistic agent aqueous solution, its water content has more 2.4 percentage points, and relative content has increased by 13.1%.Illustrate that water-soluble polymer synergistic agent can effectively increase the water retention property of soil.
Conventional fertilizer application district (check plot), i.e. the habitual fertilising of the local masses.Total fertilising situation is as follows: topdress 20,000 grams/acre, urea of base, minute secondary is April 20 at seeding time, and approximately after two months, June 25 topdressed.Except urea, calcium superphosphate is 40,000 grams/acre, ditch spread during 6,000 grams/acre of sowings of Repone K.
The fertilizer fertilizer treatment of pbz polymer composition, rate of fertilizer application is: base is executed 20,000 grams/acre of the sustained/controlled release ureas that the present embodiment 5 makes, and urea total amount is identical, but nitrogen content reduces.Calcium superphosphate is 40,000 grams/acre simultaneously, and ditch spread during 6,000 grams/acre of sowings of Repone K is identical with check plot.Base-appling once, fertilising on April 20.
Result shows that every mu of fertilizer amount of model field reduces 37.5% than contrast field, 744.8 kilograms of model field average yield per mus, and than contrast field, producing 681 kilograms increases by 63.8 kilograms, stimulation ratio 9.37%; Than 606.9 kilograms of whole county average yield per mus, increase by 137.9 kilograms, stimulation ratio 22.7%.Explanation is compared with common chemical fertilizer, and in the situation that reducing fertilizer amount, realizing per mu yield increases, larger raising the utilization ratio of chemical fertilizer.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a preparation method for the fertilizer of pbz polymer composition, is characterized in that,
Comprise the following steps
Step (1) adds organic or inorganic granulated fertilizer in tablets press;
Step (2), under described tablets press rotates under rotating condition, evenly sprays into polymeric composition solution, makes polymeric composition solution be evenly distributed on the surface of organic or inorganic granulated fertilizer, does not have unnecessary glue to be deposited in tablets press; Described polymeric composition is comprised of following each component of weight percent: guar gum 10%～20%, non-ionic polyacrylamide 20%～30%, polyacrylic acid potassium 20%～30%, polyvinyl alcohol 20%～30%;
Step (3), sprays calcic powder in granulated fertilizer surface, continues rotation until organic or inorganic granulated fertilizer is evenly coated; Finally, the granulated fertilizer being wrapped by is dried and sieved, can be made into self-curing film-coated controlled release fertilizer.
2. the preparation method of the fertilizer of pbz polymer composition according to claim 1, is characterized in that, described fertilizer is formulation fertilizer containing nitrogen, containing one or any several mixture in potassic fertilizer and nitrogenous-potash fertiliser material.
3. the preparation method of the fertilizer of pbz polymer composition according to claim 1, is characterized in that, described calcic powder is the mixture of calcium oxide and dehydrated gypsum powder.
4. according to the preparation method of the fertilizer of the pbz polymer composition described in claims 1 to 3 any one, it is characterized in that, the ratio of described granulated fertilizer, polymeric composition and calcic powder three's parts by weight is 65～70:2～4:21～23.
5. according to the preparation method of the fertilizer of the pbz polymer composition described in claims 1 to 3 any one, it is characterized in that, the concentration of described polymeric composition solution is 10～15%.
6. according to the preparation method of the fertilizer of the pbz polymer composition described in claims 1 to 3 any one, it is characterized in that, when spraying calcic powder, can also spray into together humic acid powder, described in the weight of the humic acid powder that sprays into be less than 3% of all substances gross weight.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107266201A (en) * | 2017-07-20 | 2017-10-20 | 王立常 | A kind of dual-purpose Chemical Mixed Fertilizer of medicine fertilizer and its application in terms of soil conditioning and plant nutrient |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610311A (en) * | 1983-02-15 | 1986-09-09 | Sanitek Products, Inc. | Method for reducing the aerial drift of aqueous preparations |
| CN102424633A (en) * | 2011-09-14 | 2012-04-25 | 常大勇 | Self-curing film-coated controlled release fertilizer and preparation method thereof |
| CN102515959A (en) * | 2011-12-23 | 2012-06-27 | 北京瑞泰丰商务有限公司 | Water-soluble polymer synergist used for fertilizers, its preparation method and application |
| CN103449933A (en) * | 2013-09-30 | 2013-12-18 | 四川安达农森科技有限公司 | Water soluble fertilizer additive, water soluble fertilizer composite containing same and application of water soluble fertilizer composite |
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2014
- 2014-06-27 CN CN201410301524.4A patent/CN104086291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610311A (en) * | 1983-02-15 | 1986-09-09 | Sanitek Products, Inc. | Method for reducing the aerial drift of aqueous preparations |
| CN102424633A (en) * | 2011-09-14 | 2012-04-25 | 常大勇 | Self-curing film-coated controlled release fertilizer and preparation method thereof |
| CN102515959A (en) * | 2011-12-23 | 2012-06-27 | 北京瑞泰丰商务有限公司 | Water-soluble polymer synergist used for fertilizers, its preparation method and application |
| CN103449933A (en) * | 2013-09-30 | 2013-12-18 | 四川安达农森科技有限公司 | Water soluble fertilizer additive, water soluble fertilizer composite containing same and application of water soluble fertilizer composite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107266201A (en) * | 2017-07-20 | 2017-10-20 | 王立常 | A kind of dual-purpose Chemical Mixed Fertilizer of medicine fertilizer and its application in terms of soil conditioning and plant nutrient |
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Application publication date: 20141008 |