A kind of Double-control sustained-release fertilizer and production method thereof
Technical field
The present invention relates to a kind of slow release fertilizer, particularly relate to a kind of Double-control sustained-release fertilizer and production method thereof.
Background technology
Chemical fertilizer is one of agriculture most important production means.China's chemical fertilizer consumption amount accounts for the 20-30% of world Fertilizer total quantity consumed, ranks first in the world.The contribution rate increased grain according to expert calculation China Fertilizer Industry is to about 35%, and huge contribution has been made in the existence developing into China and even the people of the world of Fertilizer Industry.
But also occurred the phenomenon of the quick growth of unit grain fertilizer amount while China's Fertilizer Industry fast development, fertilising un-reasonable phenomenon is very outstanding, utilization rate of fertilizer is low, the wasting of resources, environmental pollution and agriculture production cost increase.The usage quantity of China's chemical fertilizer is considerably beyond international average level, and current China amount of application of nitrogen fertilizer is 3 times of the U.S., French 1.5 times, German 1.6 times.Chemical fertilizer utilization ratio is well below world standard.America utilization rate of fertilizer reaches 52%, and European utilization ratio reaches 68%.And China's utilization ratio is only 30 ~ 35%, so low utilization rate of fertilizer, wastes a large amount of financial resources and resource.The elements such as a large amount of nitrogen, phosphorus, potassium residue in soil, enter underground water and surface water or be discharged in air, bring serious environmental pollution.According to statistics, China's nitrogen fertilizer production accounts for 5% of national energy consumption, the carbonic acid gas of discharge accounts for 8% of national total emission volumn, agricultural pollution accounts for 60% of gross contamination source, a large amount of fertilizer losses, person remain in inside soil, and the hardening soil is degenerated, and cause agricultural product quality to decline, environmental pollution, ecological damage.
Chemical fertilizer is maximum in China's agriculture production economy expenditure, and due to the combined influence of fertilizer character and edatope condition, utilization rate of fertilizer is low has become ubiquitous problem on fertilizer application.This season utilization ratio of current China nitrogenous fertilizer is only 30%-35%, is equivalent to lose 1,900 ten thousand tons of urea every year.Except direct financial loss, some areas cause environmental pollution because of improper fertilization, occur the problems such as in earth's surface eutrophication, underground water and vegetables, nitrate nitrogen content exceeds standard, the increase of nitrous oxide emission amount.
Improve the aspects such as utilization rate of fertilizer, saving cost, minimizing environmental pollution and have very large development space, slow release fertilizer can improve utilization rate of fertilizer, improves utilization rate of fertilizer, reduces rate of fertilizer application, saves labor of fertilizer application power, seems particularly important.Slow-release fertilizer makes it to absorb with crop nutrition content basic synchronised by the regulation and control to nutrient release rate, greatly can improve fertilizer nutrient utilization, reduces widespread pollution from the overuse of fertilizers and pesticides in rural area.
Coated fertilizer is a type of sustained-controll-release fertiliser, can be divided into organic coated fertilizer and inorganic coating fertilizer by the character of mould material; The existing sulphur coated urea of inorganic coating fertilizer, clay mineral coated fertilizer; Organic coated fertilizer mainly refers to polymer coated fertilizer.Inorganic coating fertilizer general cost is lower, pollution-free, but controlled release period is shorter; The controlled release period of organic coated fertilizer is long, but cost is high, uses in a large number and may bring risk to edatope.
Summary of the invention
The object of this invention is to provide one and integrate adsorption sustained-release and coated slow-release effect, Environmental Safety, the Double-control sustained-release fertilizer of increase yield significantly.
Another object of the present invention is to provide a kind of raw material and is easy to get, and production cost is low, the production method of the simple slow release fertilizer of technique.
The object of the invention is to be achieved through the following technical solutions, this Double-control sustained-release fertilizer comprises ternary compound fertilizer material component, absorption bonding component and dressing component three part, and described ternary compound fertilizer material component comprises nitrogen, phosphorus, potassium macroelement; Described absorption bonding component comprises straw biological black wood charcoal, deglued bone meal, tackiness agent; Described tackiness agent is the mixture of shellac and rosin, and the blending ratio of mixture is equal proportion, take ethanol as solvent, is dissolved with 80-100 gram of solute in often liter of solvent; Described dressing component comprises base oil, mud, diatomite.
In described absorption bonding component, the ratio of weight and number of straw biological black wood charcoal, deglued bone meal, tackiness agent is 10: 5: 2;
In described dressing component, base oil, mud, diatomaceous ratio of weight and number are 2: 10: 7;
The production method of Double-control sustained-release fertilizer of the present invention, comprises the following steps:
1. be the ratio mixing of 10: 5: 1 by ratio of weight and the number of copies by straw biological black wood charcoal, deglued bone meal, tackiness agent, add appropriate water, stir being heated at the temperature of 50-60 DEG C, make homogeneous absorption bonding spray coating liquor;
2. the spray coating liquor adopting the method for spraying step 1. to be obtained sprays to granulation on ternary compound fertilizer material, and the ratio of weight and number that ternary compound fertilizer material bonds spray coating liquor with absorption is 100: 15-20, spraying temperature 60-70 DEG C;
3. 10 parts of mud, 7 parts of diatomite are added suitable quantity of water and stir, be heated to 40-50 DEG C, then add 2 parts of base oils, fully stir, make dressing spray coating liquor;
4. the dressing spray coating liquor that on the ternary compound fertilizer material particle adopting heat spraying method 2. to obtain in step, 3. spraying process obtains, spraying temperature is 55-65 DEG C, and the ratio of weight and number of ternary compound fertilizer material particle and dressing spray coating liquor is 100: 8-10;
Advantage of the present invention:
Double-control sustained-release fertilizer, the composite organic-inorganic fertilizer particle that to be the absorption bonding component researched and developed voluntarily with my company and dressing component produce for sustained release dosage is for core core, the macroelement molecule such as nitrogen, phosphorus, potassium of core in-core is adsorbed bonding component and is adsorbed, according to plant growth needs, and slow releasing; Recycling dressing component wraps up this slow-release fertilizer core core and forms release membranes, realize the dual-sustained-release regulating and controlling of nutrient, overcome that the nutrient slowly-released property of resin coated fertilizer is good but price is high, the material coated cost of inorganic nutrients is low but the shortcoming of nutrient slowly-released property difference, have that production cost is low, had good sustained release effect, fertilizer are residual without film, the advantage such as suitable field crop application especially.
Embodiment
Double-control sustained-release fertilizer of the present invention comprises ternary compound fertilizer material component, absorption bonding component and dressing component three part, and ternary compound fertilizer material component comprises nitrogen, phosphorus, potassium macroelement, can add other trace element as required; Absorption bonding component comprises straw biological black wood charcoal, deglued bone meal, tackiness agent, and its consumption is 10: 5: 2 by weight; Tackiness agent is the mixture of shellac and rosin, and the blending ratio of mixture is equal proportion, take ethanol as solvent, is dissolved with 90 grams of solutes in often liter of solvent; Dressing component comprises base oil, mud, diatomite, and its consumption is 2: 10: 7 by weight.
The production method of Double-control sustained-release fertilizer of the present invention, comprises the following steps:
(1) adopt vapor heated method by 10 kilograms of straw biological black wood charcoals, 5 kilograms of deglued bone meals, 1 kilogram of tackiness agents mixing, add appropriate water, stir being heated at the temperature of 55 DEG C, make homogeneous absorption bonding spray coating liquor;
(2) adopt the method for spraying that the spray coating liquor 18 kilograms that step (1) is obtained is sprayed to granulation on 100 kilograms of ternary compound fertilizer material, spraying temperature 60-70 DEG C;
(3) 10 kilograms of mud, 7 kilograms of diatomite are added suitable quantity of water and stir, be heated to 40-50 DEG C, then add 2 kilograms of base oils, fully stir, make dressing spray coating liquor;
(4) the dressing spray coating liquor 9 kilograms that on the ternary compound fertilizer material particle adopting heat spraying method to obtain in step (2), 3. spraying process obtains, spraying temperature is 55-65 DEG C.
The field test data of Double-control sustained-release fertilizer on corn
1. test process
Process 1: mu Controlled Release Fertilizer 15kg makees base manure; Before head water, disposable mu again chases after Controlled Release Fertilizer 10kg and adds urea 20kg.
Process 2: mu diammonium phosphate 20kg adds urea 8kg and adds potassium sulphate fertilizer 5kg and make base manure, and before head water, disposable mu chases after urea 25kg.
2. experimental field basic condition
Experimental field be selected in Linyi City Yinan County Soviet Union villages and small towns, test area is 10.5 mu, and conventional fertilizer application area is 6.5 mu, and Controlled Release Fertilizer test area is 4 mu.April 30 was sowed, and May 11 emerged, pour water the time of infertility 5 times (30/6,11/7,24/7,5/8,1/9), intertillage secondary.Before conventional fertilizer application joint head water, mu chases after urea 25kg.Controlled Release Fertilizer every mu chases after 5kg.October 20 gathered in the crops.
3. test result analysis
(1) different treatment is on the impact of corn character
Corn slow-release or control-release fertilizer as can be seen from Table 1, plant height, Ear height, spike length are all high than conventional fertilizer application, and bald sharp rate is lower than contrast.
The field investigation of table 1 different treatment and indoor species test situation
(2) different treatment is on the impact of corn yield
From grain number per spike, Ear weight, thousand seed weight and seed-producing rate (see table 1), execute corn slow-release or control-release fertilizer process more than conventional fertilizer application 23.8 successively, heavy 18.5g, 25.6g and exceed 0.2 percentage point, finally fall in output, execute corn Controlled Release Fertilizer than conventional fertilizer application mu volume increase 129.7kg, amount of increase in production is 14.9%.
4 Economic and Efficiency Analysis
Table 2 shows, execute fewer than conventional fertilizer application 10.6 yuan of slow-release or control-release fertilizer mu cost, and per mu yield value is higher than conventional fertilizer application 154.8 yuan.It is 165.4 yuan that mu has a net increase of benefit.
Table 2 applies fertilizer Economic and Efficiency Analysis
Under this test conditions, use dual control slow-release or control-release fertilizer, there is obvious production-increasing function and economic benefit; Meanwhile, the whole growth and development stage of corn all shows healthy and strong tall and straight, and the middle and later periods is without de-fertile phenomenon.Can promote by large-scale demonstration.