CN100491299C - Nitrogen, phosphorus and potassium control-release special fertilizer for lotus root and preparation method thereof - Google Patents
Nitrogen, phosphorus and potassium control-release special fertilizer for lotus root and preparation method thereof Download PDFInfo
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- CN100491299C CN100491299C CNB2008100144074A CN200810014407A CN100491299C CN 100491299 C CN100491299 C CN 100491299C CN B2008100144074 A CNB2008100144074 A CN B2008100144074A CN 200810014407 A CN200810014407 A CN 200810014407A CN 100491299 C CN100491299 C CN 100491299C
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Abstract
The invention relates to a special controlled-release fertilizer containing nitrogen, phosphor, and potassium for lotus roots and the preparation method. The special controlled-release fertilizer is prepared by using thermoplastic resin coated potassium nitrate of different coating thicknesses, thermoplastic resin coated ammonium phosphate, thermoplastic resin coated urea, potassium sulfate compound fertilizer, etc. The special controlled-release fertilizer for lotus roots is applied in one go as the base fertilizer before the transplant of lotus roots, thereby not only enhancing the fertilization effect, but also saving manpower and strength. The release law of nitrogen, phosphor, and potassium nutrients can meet the requirement for absorption by lotus roots, thereby lowering manure loss and conducing to production increase.
Description
Technical field
The present invention relates to a kind of special fertilizer for lotus root that contains controlled release nitrogen, phosphorus, potassium and preparation method thereof, belong to slow/controlled release fertilizer technology field.
Background technology
Just there is the custom of cultivation lotus rhizome in China from ancient times.Lotus rhizome is nutritious, and delicious flavour is one of vegetables of China people indispensability in the Spring Festival.Lotus rhizome not only can be eaten raw, also can be processed into lotus root starch, sugared lotus root slice etc.; Lotus seeds can be cooked soup, are natural invigorants; Rhizoma nelumbinis and petiole can be used as medicine, the effect that have ventilation, helps digestion.In the past, lotus rhizome is planted based on the pond.In recent years, the rice seedling bed lotus root has been developed in the paddy rice producing region again, and the cultivated area of lotus rhizome is further enlarged.
Lotus rhizome is grown under water, brings inconvenience to fertilizing management.Must plough under earth after the lotus rhizome fertilising, it is back near from root system to bury first, be convenient to absorb, and the 2nd, prevent that a large amount of nutrients is dissolved in the water, make body eutrophication, unfavorable to the lotus rhizome growth.But, stir soil at the lotus rhizome growing period, the mechanized operation difficulty is big, and manual operation is wasted time and energy again.Lack still at present that fertilizer efficiency is long, nutrient discharges and meets lotus rhizome again and absorb and require, need only carry out disposable employed fertilizer variety before transplanting.Produce at present and go up the lotus rhizome fertilising except that the part fertilizer, main fertilizer variety is ammonium sulfate, composite fertilizer etc.These fertilizer are quick acting fertilizer, and dissolving can make soil solution concentration improve rapidly soon in a short time after the fertilising in soil, so, once can not use too many.In the breeding cycle of lotus rhizome, except that using base manure, need topdress 2～3 times.Repeatedly fertilising improves labour cost, and cultivation benefit descends.Simultaneously, although quick acting fertilizer adopts a small amount of fertilization principle repeatedly, owing to just exist with ionic state from the back fertilizer that is manured into soil, still make in water body and the soil nutrient density bigger, run off easily and, cause utilization rate of fertilizer low to depth of soils drip washing, and contaminate environment.Up to now, the Shang Weiyou lotus rhizome special-purpose control-release fertilizer that can overcome above technical barrier is openly reported.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of special fertilizer for lotus root that contains controlled release nitrogen, phosphorus, potassium and preparation method thereof, utilize the Nutrient Release of thermoplastic resin membrane wrapping control-releasing fertilizer, the law of nutritive absorption according to lotus rhizome carries out the composite lotus rhizome special-purpose control-release fertilizer that obtains simultaneously.
Technical scheme of the present invention is as follows:
Lotus rhizome special-purpose control-release fertilizer of the present invention, feed composition is as follows, is weight part:
80～150 parts in 4% thermoplastic resin membrane wrapping saltpetre
120～280 parts in 5% thermoplastic resin membrane wrapping saltpetre
100～150 parts in 3% thermoplastic resin membrane wrapping ammonium phosphate
30～50 parts in 4% thermoplastic resin membrane wrapping ammonium phosphate
100～180 parts in 4% thermoplastic resin membrane wrapping urea
50～160 parts in 5% thermoplastic resin membrane wrapping urea
30～100 parts in 6% thermoplastic resin membrane wrapping urea
150～250 parts of compound potassium sulfate fertilizers
0～10 part in zinc sulfate.
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); 3% thermoplastic resin membrane wrapping ammonium phosphate is meant that the coating layer quality is 3% of a total mass, and model is KTP02 (14-45-0); 4% thermoplastic resin membrane wrapping ammonium phosphate is meant that the coating layer quality is 4% of a total mass, and model is KTP03 (14-45-0); 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); 6% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 6% of a total mass, and model is KTP04 (43-0-0);
Numerical value in the above product type bracket is the mass percentage content of N, P, K, and being that this area is conventional indicates.Above raw material Shandong Kingenta Bio-engineering Stock Co., Ltd. produces and sells.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 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;
The particle diameter of above-mentioned all raw materials is good in 2～4 millimeters scopes all.
Further preferred, the lotus rhizome special-purpose control-release fertilizer, feed composition is as follows, is weight part:
80～90 parts in 4% thermoplastic resin membrane wrapping saltpetre
195～205 parts in 5% thermoplastic resin membrane wrapping saltpetre
105～115 parts in 3% thermoplastic resin membrane wrapping ammonium phosphate
40～50 parts in 4% thermoplastic resin membrane wrapping ammonium phosphate
150～160 parts in 4% thermoplastic resin membrane wrapping urea
105～115 parts in 5% thermoplastic resin membrane wrapping urea
80～90 parts in 6% thermoplastic resin membrane wrapping urea
195～205 parts of compound potassium sulfate fertilizers
4～6 parts in zinc sulfate.
The preparation method of lotus rhizome 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.
The application of lotus rhizome special-purpose control-release fertilizer of the present invention, this fertilizer are to make base manure once to apply before lotus rhizome is transplanted, and needn't go later on again and topdress.Fertilizing method is to spread fertilizer over the fields after ploughing, and rake is gone in 20～25 cm layer of soil again, carries out lotus rhizome then and transplants.
Technical characterstic of the present invention is a Nutrient Release of utilizing thermoplastic resin membrane wrapping saltpetre, thermoplastic resin membrane wrapping ammonium phosphate, thermoplastic resin membrane wrapping urea, while is according to the law of nutritive absorption of lotus rhizome, singly plant controlled release fertilizer and the part quick-acting fertilizer carries out composite with what the difference of specific coating quantity discharged the period, formed nutrient comprehensively, discharge rational lotus rhizome special-purpose control-release fertilizer, and carried out field experiment, obtained good effect.
Excellent results of the present invention is as follows:
1. the nutrient controlled-release effect is good
Lotus rhizome is grown in the water, and institute's fertilise long period of soaking is in water, and is therefore strict to the controlled-release material of controlled release fertilizer.Each raw material of this special-purpose control-release fertilizer is all selected the various controlled release fertilizer of water-fast thermoplastic resin membrane wrapping material produce for use, and their Nutrient Release mainly is subjected to Temperature Influence at the lotus rhizome growing period, and temperature raises, and nutrient discharges to be accelerated; Temperature reduces, and nutrient discharges and reduces, and this just matches with the lotus rhizome speed of growth and nutrition absorption quantity, really reaches the effect of sustained release.
2. nitrogen, phosphorus, potassium nutrition releasing rule meet lotus rhizome absorption needs
Rely on the nutrition of kind of lotus root after lotus rhizome has just been planted fully, along with continued growth, begin gradually to absorb extraneous nutrient, grow up to substantially to leaf, the lotus root BOB(beginning of block) expands, and nutrient absorbing speed is reached maximum.After a period of stabilisation descend thereafter.Incomplete same for its absorbing rule of different nutrition.The lotus rhizome growth is more to Nitrogen Absorption early stage, and the later stage reduces relatively; Absorbing the potassium element then is that the later stage is many, and early stage is few; It is more steady the plain time of infertility that lotus rhizome absorbs phosphorus.Special-purpose control-release fertilizer is planted controlled release fertilizer according to this law of nutritive absorption with the list of Different Nutrients release feature just and is carried out assembly, can satisfy the lotus rhizome nutrient requirement of each breeding time.
3. the minimizing fertilizer loss is preserved the ecological environment
Lotus rhizome is planted in pond or rice field, makes nutrient ionic concn height in the soil solution and the overground water body after applying water soluble fertilizer, is lost if can not in time absorb, and not only wastes resource, increases peasant's production cost, also is a kind of threat to ecotope.These ions are nutrients for lotus rhizome, but as if then becoming pollution substance because of big rainfall inflow rivers and lakes or drip washing to underground water.The nutrient of special-purpose control-release fertilizer is progressively to discharge along with the absorption of lotus rhizome, nutrient ion residual in soil and the water is few, because of the nutrient of rainfall or irrigation loss is also few, not only reduces fertilizer loss, improve utilization rate of fertilizer, also just reduced the harm of farmland fertilization environment from the source.
4. the minimizing fertilizer application frequency reduces peasant's labour intensity
Generally speaking, lotus rhizome need topdress 2～3 times except that using base manure.Owing to be at underwater work, labour intensity is big, and is time-consuming.Special-purpose control-release fertilizer no longer topdresses later on transplanting previous crops base manure applied once, has reduced fertilizer application frequency, has reduced peasant's labour intensity, has saved the recruitment cost.
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, 4% thermoplastic resin membrane wrapping saltpetre model is KTP02 (12-0-42); 5% thermoplastic resin membrane wrapping saltpetre model is KTP03 (12-0-42); 3% thermoplastic resin membrane wrapping ammonium phosphate model is KTP02 (14-45-0); 4% thermoplastic resin membrane wrapping ammonium phosphate model is KTP03 (14-45-0); 4% thermoplastic resin membrane wrapping urea model is KTP02 (43-0-0); 5% thermoplastic resin membrane wrapping urea model is KTP03 (43-0-0); 6% thermoplastic resin membrane wrapping urea model is KTP04 (43-0-0); Above raw material Shandong Kingenta Bio-engineering Stock Co., Ltd. produces and sells.In the compound potassium sulfate fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 15%, 15%, 15%, are mass percent.The particle diameter of above-mentioned all raw materials is good in 2～4 millimeters scopes all.
Embodiment 1: the lotus rhizome special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 20%, 10%, 20%, are mass percent.Feed composition is as follows:
4% thermoplastic resin membrane wrapping saltpetre 145kg
5% thermoplastic resin membrane wrapping saltpetre 260kg
3% thermoplastic resin membrane wrapping ammonium phosphate 110kg
4% thermoplastic resin membrane wrapping ammonium phosphate 45kg
4% thermoplastic resin membrane wrapping urea 120kg
5% thermoplastic resin membrane wrapping urea 70kg
6% thermoplastic resin membrane wrapping urea 45kg
Compound potassium sulfate fertilizer 200kg
Zinc sulfate 5kg.
The preparation method: above-mentioned each raw material is put into stirrer together stirred 5～10 minutes, fully mixing promptly.
Embodiment 2: the lotus rhizome special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 24%, 10%, 15%, are mass percent.Feed composition is as follows:
4% thermoplastic resin membrane wrapping saltpetre 85kg
5% thermoplastic resin membrane wrapping saltpetre 200kg
3% thermoplastic resin membrane wrapping ammonium phosphate 110kg
4% thermoplastic resin membrane wrapping ammonium phosphate 45kg
4% thermoplastic resin membrane wrapping urea 160kg
5% thermoplastic resin membrane wrapping urea 110kg
6% thermoplastic resin membrane wrapping urea 85kg
Compound potassium sulfate fertilizer 200kg
Zinc sulfate 5kg.
Embodiment 3: the lotus rhizome special-purpose control-release fertilizer, total nutrient: nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 24%, 10%, 15%, are mass percent.Feed composition is as follows:
4% thermoplastic resin membrane wrapping saltpetre 145kg
5% thermoplastic resin membrane wrapping saltpetre 140kg
3% thermoplastic resin membrane wrapping ammonium phosphate 110kg
4% thermoplastic resin membrane wrapping ammonium phosphate 45kg
4% thermoplastic resin membrane wrapping urea 120kg
5% thermoplastic resin membrane wrapping urea 150kg
6% thermoplastic resin membrane wrapping urea 85kg
Compound potassium sulfate fertilizer 200kg.
Zinc sulfate 5kg.
Comparative Examples: common compound potassium sulfate fertilizer (total nutrient content 45%)+ammonium sulfate (nitrogen content 21%).
The effect of above embodiment 1～3 and Comparative Examples is as follows:
For the examination lotus root varieties is Rhizoma Saururi, and soil is red soil, and planting type is that the pond plants.Press 600 kilograms of compound potassium sulfate fertilizers of per hectare, 300 kilograms of ammonium sulfate in the Comparative Examples; The fertilizer amount of special-purpose control-release fertilizer is 600 kilograms of per hectares.Whole lotus rhizome special-purpose control-release fertilizers are to make base manure once to apply before transplanting among the embodiment; Ammonium sulfate is to impose when growing 3～4 upright leaves in the Comparative Examples, and compound potassium sulfate fertilizer imposes at full-bloom stage.Application process, base manure are to spread fertilizer over the fields after ploughing, and rake is gone in 20～25 cm layer of soil again, transplants then; Topdressing is fertilizer to be sprinkled into Chi Zhonghou weed and weed and loosen the soil, and fertilizer is buried evenly.
| Yield-increasing efficiency (%) | Improve utilization rate of nitrogen fertilizer (%) | Saving of labor's cost (unit/mu) | Estimate | |
| Embodiment 1 | 7.6 | 12.5 | 120 | Effect of increasing production is arranged, improve utilization rate of fertilizer, save the recruitment cost, can promote. |
| Embodiment 2 | 9.2 | 14.7 | 120 | Effect of increasing production is better, improves utilization rate of fertilizer, and saving of labor, laborsaving is worthy to be popularized. |
| Embodiment 3 | 6.8 | 12.3 | 120 | Effect of increasing production is arranged, improve utilization rate of fertilizer, save the recruitment cost, can promote. |
| Comparative Examples | - | - | Utilization rate of fertilizer is low, and fertilizer application frequency is many, and recruitment cost height should not be promoted. |
Claims (6)
1, lotus rhizome special-purpose control-release fertilizer is characterized in that feed composition is as follows, is weight part:
80～150 parts in 4% thermoplastic resin membrane wrapping saltpetre
120～280 parts in 5% thermoplastic resin membrane wrapping saltpetre
100～150 parts in 3% thermoplastic resin membrane wrapping ammonium phosphate
30～50 parts in 4% thermoplastic resin membrane wrapping ammonium phosphate
100～180 parts in 4% thermoplastic resin membrane wrapping urea
50～160 parts in 5% thermoplastic resin membrane wrapping urea
30～100 parts in 6% thermoplastic resin membrane wrapping urea
150～250 parts of compound potassium sulfate fertilizers
0～10 part in zinc sulfate;
Described 4% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 4% of a total mass, and model is KTP02, and the mass percentage content of N, P, K is respectively 12%, 0,42%; Described 5% thermoplastic resin membrane wrapping saltpetre is meant that the coating layer quality is 5% of a total mass, and model is KTP03, and the mass percentage content of N, P, K is respectively 12%, 0,42%; Described 3% thermoplastic resin membrane wrapping ammonium phosphate is meant that the coating layer quality is 3% of a total mass, and model is KTP02, and the mass percentage content of N, P, K is respectively 14%, 45%, 0; Described 4% thermoplastic resin membrane wrapping ammonium phosphate is meant that the coating layer quality is 4% of a total mass, and model is KTP03, and the mass percentage content of N, P, K is respectively 14%, 45%, 0; Described 4% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 4% of a total mass, and model is KTP02, and the mass percentage content of N, P, K is respectively 43%, 0,0; Described 5% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 5% of a total mass, and model is KTP03, and the mass percentage content of N, P, K is respectively 43%, 0,0; Described 6% thermoplastic resin membrane wrapping urea is meant that the coating layer quality is 6% of a total mass, and model is KTP04, and the mass percentage content of N, P, K is respectively 43%, 0,0; Above-described raw material 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%, are mass percent.
2, lotus rhizome 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, lotus rhizome special-purpose control-release fertilizer as claimed in claim 1 is characterized in that feed composition is as follows, is weight part:
80～90 parts in 4% thermoplastic resin membrane wrapping saltpetre
195～205 parts in 5% thermoplastic resin membrane wrapping saltpetre
105～115 parts in 3% thermoplastic resin membrane wrapping ammonium phosphate
40～50 parts in 4% thermoplastic resin membrane wrapping ammonium phosphate
150～160 parts in 4% thermoplastic resin membrane wrapping urea
105～115 parts in 5% thermoplastic resin membrane wrapping urea
80～90 parts in 6% thermoplastic resin membrane wrapping urea
195～205 parts of compound potassium sulfate fertilizers
4～6 parts in zinc sulfate.
4, the preparation method of the described lotus rhizome special-purpose control-release fertilizer of a kind 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 lotus rhizome special-purpose control-release fertilizer of claim 1, this fertilizer are to make base manure once to apply before lotus rhizome is transplanted.
6, the application of the described lotus rhizome special-purpose control-release fertilizer of claim 5 is characterized in that fertilizing method is to spread fertilizer over the fields after ploughing, rake is gone in 20～25 cm layer of soil again, carries out lotus rhizome then and transplants.
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| CNB2008100144074A CN100491299C (en) | 2008-02-28 | 2008-02-28 | Nitrogen, phosphorus and potassium control-release special fertilizer for lotus root and preparation method thereof |
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| CNB2008100144074A CN100491299C (en) | 2008-02-28 | 2008-02-28 | Nitrogen, phosphorus and potassium control-release special fertilizer for lotus root and preparation method thereof |
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| CN103420729B (en) * | 2013-08-15 | 2014-09-17 | 扬州展鹏肥业有限公司 | Production method and application method of slow release fertilizer special for lotus root |
| CN111684904A (en) * | 2019-03-11 | 2020-09-22 | 东营市盛元生态农业有限责任公司 | Fertilizing method for co-culture of shrimps and lotus roots |
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