CN113666787A - Special controlled-release fertilizer for rice and application method thereof - Google Patents
Special controlled-release fertilizer for rice and application method thereof Download PDFInfo
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- CN113666787A CN113666787A CN202111058467.8A CN202111058467A CN113666787A CN 113666787 A CN113666787 A CN 113666787A CN 202111058467 A CN202111058467 A CN 202111058467A CN 113666787 A CN113666787 A CN 113666787A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 81
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 60
- 235000009566 rice Nutrition 0.000 title claims abstract description 60
- 238000013270 controlled release Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 17
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 33
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004202 carbamide Substances 0.000 claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000011856 silicon-based particle Substances 0.000 claims abstract description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011575 calcium Substances 0.000 claims abstract description 3
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 3
- 239000011777 magnesium Substances 0.000 claims abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 3
- 235000015097 nutrients Nutrition 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 241001474374 Blennius Species 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract description 8
- 239000005696 Diammonium phosphate Substances 0.000 abstract description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 abstract description 4
- 235000019838 diammonium phosphate Nutrition 0.000 abstract description 4
- 239000001103 potassium chloride Substances 0.000 abstract description 4
- 235000011164 potassium chloride Nutrition 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000000618 nitrogen fertilizer Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 230000004720 fertilization Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- LAZOHFXCELVBBV-UHFFFAOYSA-N [Mg].[Ca].[Si] Chemical compound [Mg].[Ca].[Si] LAZOHFXCELVBBV-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 240000008467 Oryza sativa Japonica Group Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 229930002875 chlorophyll Natural products 0.000 description 2
- 235000019804 chlorophyll Nutrition 0.000 description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241001441723 Takifugu Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- MZILPZDBVFUXMY-UHFFFAOYSA-N [O-][N+]([S])=O Chemical compound [O-][N+]([S])=O MZILPZDBVFUXMY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a special controlled-release fertilizer for rice, which is prepared from the following raw materials in percentage by weight: 5-26% of large-particle urea, 11-35% of first resin coated urea, 0-20% of second resin coated urea, 20-30% of diammonium phosphate, 15-24% of potassium chloride and 3-10% of calcium, magnesium and silicon particles. The invention can reduce the frequency of using fertilizer, improve the efficiency of base fertilizer, save time and labor and ensure the stable supply of nitrogen. The invention also provides an application method of the special controlled-release fertilizer for rice.
Description
Technical Field
The invention relates to the technical field of fertilizers, in particular to a special controlled-release fertilizer for rice and an application method thereof.
Background
The rice is a main grain crop in China, and the fertilization is an important component in a rice cultivation system, and plays an important role in improving the yield of the rice and the quality of the rice. The traditional fertilization adopts a repeated dressing mode, which not only wastes labor, but also can cause environmental pollution, resource waste and other problems due to fertilizer loss.
The slow release fertilizer is also called slow release fertilizer or controlled release fertilizer, and the release speed of the compound containing nutrients in the fertilizer in soil is slow or the release speed of the nutrients can be controlled to a certain degree for sustained absorption and utilization of crops. The slow release fertilizer can reduce the loss of fertilizer nutrients, particularly nitrogen, in soil, reduce the frequency of fertilization operation, save labor and cost, and avoid the damage to seeds or seedlings caused by excessive fertilization.
Long-time field experiments and research results show that under normal conditions, only 30-50% of nitrogen fertilizer can be absorbed and utilized by crops after being applied to soil, and the rest part of nitrogen fertilizer is lost. The loss of nitrogen fertilizer is caused by the volatilization, leaching loss, nitrification and denitrification of ammonia. The slow-release nitrogen fertilizer is developed and applied, namely, the slow-release nitrogen fertilizer is developed and applied, so that nitrogen is sequentially provided for crops in the slow dissolving process of the nitrogen fertilizer, and the adverse effects of damaging crop seeds, seedlings or burning leaves and the like due to overhigh local concentration in the process of mass application are prevented, so that the purpose of improving the utilization rate of the nitrogen fertilizer is achieved, and the slow-release nitrogen fertilizer is generated. The most important characteristic of the slow-release nitrogen fertilizer is that the release speed of the slow-release nitrogen fertilizer can be controlled, the slow-release nitrogen fertilizer is gradually decomposed after being applied to soil and is gradually absorbed and utilized by crops, so that nutrients in the fertilizer can meet different requirements of each growth stage of the crops in the whole growth period, and the fertilizer efficiency can be maintained for several months to more than one year after one-time application. However, the slow release fertilizer in the current market is not suitable for rice production, the traditional fertilizing method is adopted for fertilizing the rice by still utilizing the high-proportion chemical fertilizer, the yield is low, the efficiency is low, the slow release requirement cannot be met by adopting the traditional slow release layer, and the effect of the fertilizer is greatly reduced due to long-time slow release.
Disclosure of Invention
The invention aims to solve the technical problems that the existing slow-release fertilizer cannot meet the requirement of stable supply of rice nutrients, the utilization rate of nitrogen fertilizer is low, the fertilization times are multiple, and the cost of manpower and material resources is consumed. The invention provides a special controlled-release fertilizer for rice, which ensures the stable and continuous supply of nitrogen, improves the yield of rice crops, reduces the fertilization times and saves the cost of manpower and material resources.
In order to solve the technical problems, the embodiment of the invention discloses a special controlled-release fertilizer for rice, which is prepared from the following raw materials in percentage by weight:
wherein 64% diammonium phosphate refers to total nutrient (N + P)2O5I.e. the sum of phosphorus pentoxide and nitrogen) is equal to or greater than 64%, the actual partial content of 64 diammonium is nitrogen 18-phosphorus pentoxide 46.
The raw materials all meet the standard, wherein:
the large granular urea meets the national standard GB/T2440 urea standard;
diammonium phosphate meets the national standard GB 10205;
the potassium chloride conforms to the national standard GB 6549.
The raw materials are all commercial products, wherein:
60% potassium chloride is 60% potassium chloride of Honghu brand, 60% refers to water-soluble potassium (K)2O)≥60；
The large-particle urea, the first resin coated urea, the second resin coated urea, 64% diammonium phosphate and calcium magnesium silicon particles are all purchased from Vat Fugu group.
Optionally, the nutrient release period of the first resin coated urea is 2 months, and the nutrient release period of the second resin coated urea is 3 months.
The coated controlled release fertilizer is a fertilizer which takes quick-acting fertilizer as a core and is coated with a layer of protective (water-insoluble) substance by different processes to control the infiltration of water so as to control the dissolution and release speed of nutrients. The coating is a coat of the coated controlled-release fertilizer and is a key component for controlling the controlled-release fertilizer to achieve the controlled-release effect. The type and thickness of the coating material and the coating process are the determining factors of the sustained and controlled release effect.
The organic coating material mainly comprises: natural high molecular materials, semi-synthetic high molecular materials and synthetic high molecular materials. The synthetic polymer material is a polymer compound obtained by an artificial chemical synthesis method. The coating material is convenient to process and synthesize and stable in chemical property.
Due to the existence of the coating, the fertilizer core of the coated controlled release fertilizer is separated from the external environment. When the coated controlled release fertilizer contacts soil or water, the nutrient release of the coated controlled release fertilizer generally goes through two stages: first-stage water molecules enter the interior of the coating through the pore passages and dissolve the fertilizer core to form a saturated nutrient solution; the nutrient in the saturated solution formed in the second stage forms a concentration difference outside the membrane so as to release the nutrient.
Optionally, the nitrogen content of the first resin coated urea and/or the second resin coated urea is 40-44%.
Optionally, the calcium magnesium silicon particles contain the following effective components in percentage by weight: calcium oxide is more than or equal to 25 percent, magnesium oxide is more than or equal to 10 percent, silicon dioxide is more than or equal to 12.5 percent, and seaweed extract dry matter is more than or equal to 0.7 percent.
The embodiment of the invention also discloses an application method of the special slow/controlled release fertilizer for rice, which applies the special slow/controlled release fertilizer for rice by adopting a one-time application technology.
The special slow/controlled release fertilizer for rice has the following technical effects:
(1) nitrogen plays a key role in the formation of rice yield and quality, and the reasonable application of nitrogen fertilizer is very important for improving the rice yield. The coated controlled-release urea supplies nutrients by controlling an outer-layer membrane material, improves the contents of nitrate nitrogen, ammonium nitrogen and alkaline hydrolysis nitrogen in soil, reduces the nitrogen runoff loss and promotes the growth and development of rice roots;
(2) the utilization rate of the nitrogen fertilizer is improved through the resin coated urea, the frequency of using the fertilizer is reduced, the efficiency of the base fertilizer is improved, and time and labor are saved;
(3) meanwhile, common large-particle urea and resin coated urea with a nutrient release period of 2 months and a nutrient release period of 3 months are adopted, so that stable and stable supply of nitrogen is ensured, the rice is not vigorous in the early stage, and the rice is not fertilized in the later stage;
(4) supplementing elements such as silicon, calcium, magnesium and the like, and improving the resistance and the quality of the rice.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The special slow/controlled release fertilizer for rice is applied to the Xinglong terrace area of the Panjin city of Liaoning province in China for planting rice on the street of a building, and the rice variety is SANGFENG 47.
The formula of the special controlled-release fertilizer for rice (the total of nitrogen, phosphorus and potassium active ingredients is 51.26 weight percent):
the following tests were carried out on the slow controlled release fertilizer of the above formulation:
the application method comprises the steps of deeply applying the slow/controlled release fertilizer with the component ratio, applying 50kg of the slow/controlled release fertilizer to each mu of land, and carrying out rotary tillage on the land by a rotary cultivator after uniform spreading; harrowing and harrowing are carried out before water comes.
Example 2
The special slow/controlled release fertilizer for rice is applied to the Xinglong terrace area of the Panjin city of Liaoning province in China for planting rice on the street of a building, and the rice variety is SANGFENG 47.
The formulation composition of the fertilizer used was the same as in example 1.
The following tests were carried out on the slow controlled release fertilizer of the above formulation:
the application method is bottom application, and after 50kg of slow-release fertilizer is uniformly applied to each mu of land, the land is rotary-tilled by a rotary cultivator; harrowing and harrowing are carried out before water comes.
Example 3
The special slow controlled release fertilizer for rice is applied to the rice planting of the Chaochihoucun in the Bahu town of the Hedong district of the Yiyi city, Shandong province, China, and the rice variety is Lindao 16 (middle and late maturing, japonica rice);
the row spacing of rice planting is 24cm, the plant spacing is 22cm, and the planting density is 12000 plants/mu;
the formula of the special controlled-release fertilizer for rice (the total of nitrogen, phosphorus and potassium active ingredients is 51.26 weight percent):
the following tests were carried out on the slow controlled release fertilizer of the above formulation:
the application method is that the base fertilizer is applied at one time without additional fertilizer, and the fertilizing amount per mu of the base fertilizer is 50 kg/mu.
Comparative example 1
The applied fertilizer was a conventional fertilizer (a common bulk blend fertilizer without resin coated urea and calcium magnesium silicon granules);
the special slow/controlled release fertilizer for rice is applied to the Xinglong terrace area of the Panjin city of Liaoning province in China for planting rice on the street of a building, and the rice variety is SANGFENG 47;
the following tests were carried out on the slow controlled release fertilizer of the above formulation:
before water comes, 40kg of the fertilizer is applied to each mu of land, the fertilizer is uniformly spread, and harrowing is carried out; then, two times of topdressing are carried out: 5kg of urea is additionally applied to each mu of land in the green turning period, and 7.5kg of urea is applied to each mu at the bottom of 6 months.
Comparative example 2
The applied fertilizer is 15-15-15% of Yangyang Tiannitre-sulfur-based compound fertilizer;
the compound fertilizer of the comparative example is applied to rice planting in the Chaihouvillage of the Bahu town of the Hedong region in Linyi City, Shandong province, China, and the rice variety is Lindao 16 (middle and late maturing, japonica rice);
the row spacing of rice planting is 24cm, the plant spacing is 22cm, and the planting density is 12000 plants/mu;
the following tests were carried out on Yangyang day nitro-sulfur-based compound fertilizer 15-15-15:
the application method comprises the steps of firstly applying base fertilizer, wherein the fertilizing amount per mu of base fertilizer is 50 kg/mu; then, the green manure is fertilized twice, and 15 jin of urea is applied per mu.
The effects of the applications of examples 1-2 and comparative example 1 are shown in table 1.
TABLE 1 questionnaire of biological properties and yields of SAFENG 47 rice varieties for different experiments
Note: the above results were calculated by mechanical transplanting according to 4 plants per hole.
The effects of example 3 and comparative example 2 are shown in table 2.
TABLE 2 questionnaire of different tests on biological traits and yield of temporary rice 16 rice variety
| Test of | Plant height (cm) | Root length (cm) | Tillering number | Effective tillering number | Chlorophyll |
| Example 3 | 48.02 | 23 | 14.45 | 4.89 | 47.13 |
| Comparative example 2 | 48.2 | 17 | 12.60 | 4.11 | 42.37 |
As can be seen from table 1, the slow/controlled release fertilizer special for rice and the application method thereof provided by the invention can significantly reduce the amount of chemical fertilizers and the application times of the fertilizers by applying the slow/controlled release fertilizer on Yanfeng 47 rice, simplify the traditional fertilization mode, satisfy the growth of rice in one season by one application, and have simple operation and improved yield and income of rice; the urea is subjected to resin coating treatment, the controlled release effect of nitrogen is obviously improved, and the uniform and long-acting release of the nitrogen is realized by regulating and controlling the resin coatings in different nutrient release periods, so that the effect of the fertilizer is fully improved.
As can be seen from Table 2, the slow/controlled release fertilizer of the invention is applied to the rice variety near 16 without subsequent topdressing, so that the application frequency of the fertilizer can be reduced, the cost is saved, the growth of the rice plant is not affected, and the root length, the tillering number and the chlorophyll content are obviously increased compared with the comparative example. Compared with the comparative example 2, the rice population uniformity of the example 3 is good, the leaf color is dark green, and the rice is not overgrown; the rice has long individual root system, more fibrous roots, more tillers, relatively more effective tillering number and thick leaves.
While the invention has been described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more particular description of the invention than is possible with reference to the specific embodiments, which are not to be construed as limiting the invention. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (6)
1. A special slow/controlled release fertilizer for rice is characterized by being prepared from the following raw materials in percentage by weight:
2. the special controlled-release fertilizer for rice as claimed in claim 1, wherein the first resin-coated urea has a nutrient release period of 2 months, and the second resin-coated urea has a nutrient release period of 3 months.
3. The rice-dedicated controlled-release fertilizer according to claim 1, wherein the nitrogen content of the first resin-coated urea and/or the second resin-coated urea is 40 to 44%.
4. The special controlled-release fertilizer for rice as claimed in claim 1, wherein the calcium, magnesium and silicon particles comprise the following effective components in percentage by weight: calcium oxide is more than or equal to 25 percent, magnesium oxide is more than or equal to 10 percent, silicon dioxide is more than or equal to 12.5 percent, and seaweed extract dry matter is more than or equal to 0.7 percent.
5. The special slow/controlled-release fertilizer for rice as claimed in claim 1 or 2, wherein the slow-release nitrogen in the special slow/controlled-release fertilizer for rice is more than or equal to 12%.
6. The application method of the special slow and controlled release fertilizer for rice as claimed in any one of claims 1-5, characterized in that the special slow and controlled release fertilizer for rice adopts a one-time application technology.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177367A (en) * | 2007-11-05 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for rice and preparation method thereof |
| CN104151077A (en) * | 2014-08-19 | 2014-11-19 | 安徽莱姆佳肥业有限公司 | Multi-element biological alga fertilizer for preventing and treating rice spike develop abnormality, and preparation method thereof |
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| CN104909876A (en) * | 2015-05-20 | 2015-09-16 | 中国海洋石油总公司 | Special controlled-release fertilizer for paddy rice based on continuous cropping and planting of paddy rice and vegetables and preparation method of special controlled-release fertilizer |
| CN111995457A (en) * | 2020-07-13 | 2020-11-27 | 南京农业大学 | Rice machine-transplanting slow-mixing one-time fertilization method |
| CN112225625A (en) * | 2020-09-07 | 2021-01-15 | 苏建平 | Special controlled-release fertilizer for conventional japonica rice, and preparation method and application thereof |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101177367A (en) * | 2007-11-05 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for rice and preparation method thereof |
| CN104447131A (en) * | 2013-09-12 | 2015-03-25 | 颜笑天 | Rice special-purpose controlled release fertilizer and preparation method thereof |
| CN104151077A (en) * | 2014-08-19 | 2014-11-19 | 安徽莱姆佳肥业有限公司 | Multi-element biological alga fertilizer for preventing and treating rice spike develop abnormality, and preparation method thereof |
| CN104909876A (en) * | 2015-05-20 | 2015-09-16 | 中国海洋石油总公司 | Special controlled-release fertilizer for paddy rice based on continuous cropping and planting of paddy rice and vegetables and preparation method of special controlled-release fertilizer |
| CN111995457A (en) * | 2020-07-13 | 2020-11-27 | 南京农业大学 | Rice machine-transplanting slow-mixing one-time fertilization method |
| CN112225625A (en) * | 2020-09-07 | 2021-01-15 | 苏建平 | Special controlled-release fertilizer for conventional japonica rice, and preparation method and application thereof |
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Application publication date: 20211119 |