CN1037430C

CN1037430C - Multielement compound fertilizer and its producing method

Info

Publication number: CN1037430C
Application number: CN93103831A
Authority: CN
Inventors: 田永豪
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-29
Filing date: 1993-03-29
Publication date: 1998-02-18
Anticipated expiration: 2013-03-29
Also published as: CN1093075A

Abstract

The present invention relates to multi-element compound fertilizer and a producing method thereof. The multi-element compound fertilizer belongs to organic-inorganic compound fertilizer using waste slag as a base material. The present invention has the purpose of providing the multi-element compound fertilizer made from oil cake by a chemical method and a producing method thereof. The present invention is a kind of multi-element compound fertilizer which is produced by that the oil cake is processed by copper sulfate-ammonia water solution and is then added with nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer according to proper quantity. The oil cake is crushed, is processed by the copper sulfate-ammonia water solution, carries out hill reaction and is then added with the nitrogen fertilizer, the phosphorus fertilizer and the potassium fertilizer, and thus, the present invention is obtained by the steps of uniform mixing, granulation, dryness and sieving. The present invention provides a high analysis fertilizer which has the advantages of plant growth promotion, high yield, soil improvement, simple process, low investment, low cost and good economic benefit.

Description

Multielement compound fertilizer and its producing method

The invention belongs to the fertilizer made from waste residue, particularly, the residue that belongs to the squeezing vegetables oil is the organic-inorganic compound manure that base-material is made.

Fertilizer is one of key element of agriculture production.The human fertilizer that uses, be from farm manure, develop into the chemical fertilizer that contains single nutritive element, as nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, so develop into the compound manure that contains nutritive element more than two kinds, such as nitro phosphor complex, phospho potash complex fertilizer, composite N-K fertilizer and ternary composite azophoska etc.In recent years, based on nitrogen, phosphorus, three kinds of major elements of potassium, be equipped with in some the polynary multiple fertilizer that amount and trace element make and also be widely used.Compound manure is various in style, and is diversified in specifications.Meanwhile, some contain organic organic fertilizer, and the oil cake that squeezes vegetables oil, humic acid fertilizer as tradition is used also still occupy certain position in agriculture production.In above-mentioned fertilizer type, chemical fertilizer does not have organic composition, humate usually, to the function that crop is not regulated growth, more can not improve the soil, and on the contrary, the fertilizer long-term application that has also 1 can make soil compaction.And the oil cake that tradition is used is unprocessedly directly used, and nutrition is single, and fertilizer efficiency is low.Up to now, yet there are no the report of making the organic-inorganic compound manure with chemical process processing oil cake again.

Purpose of the present invention provides a kind of organic-inorganic polyelement composite fertilizer that adopts chemical process processing oil cake and make dried, and its production method is provided.

For reaching this purpose, the contriver after deliberation, copper sulfate-the ammonia soln of employing 2% carries out the mixed-stacking processing with the residue (oil cake) of squeezing vegetables oil, the quality of this solution is the 20%-30% of oil cake quality, regulate pH value with unslaked lime after 24 hours, and add nitrogenous fertilizer, phosphate fertilizer, potash fertilizer according to the prescription needs and make a kind of polyelement composite fertilizer that had not only contained organic matter but also mineral manure is arranged.Organic contained hydroxyl and copper sulfate-ammonia soln in the oil cake react, and can generate to contain organic cupric ammine complex, make oil cake " extension nitrogen " and band trace copper, and oil cake pH value will be neutral simultaneously.Its reaction is shown below:

The preparation method of this organic-inorganic polyelement composite fertilizer comprises:

(1) the residue oil cake that will squeeze behind the vegetables oil is pulverized;

(2) add quality be oil cake quality 20-30%, massfraction is copper sulfate-ammonia soln of 2%, makes it and the oil cake uniform mixing, after hill reaction in 24 hours, regulates pH value to 7 with unslaked lime.

(3) needs according to the multi-component composite fertilizer material formula add nitrogen, phosphorus, potash fertilizer;

(4) with whole mixing of materials, stir, again through extruding, granulation, drying, screening and make product.

The used oil cake of top method is the residue cake of squeezing plant oil, and the massfraction of copper sulfate-ammonia soln is 2%, and used nitrogenous fertilizer can be bicarbonate of ammonia, urea, ammonium nitrate etc., and used phosphate fertilizer can be normal superphosphate, coarse whiting, phosphorus ammonium etc.; Used potash fertilizer can be Repone K, saltpetre, vitriolate of tartar etc.The amount of used various fertilizer can be regulated according to the difference in crop, soil, fertilising season.

The formula rate of normal use is:

Oil cake (treated) 60% (butt)

Urea 10%

Vitriolate of tartar 8%

Normal superphosphate 20%

Unslaked lime 2%

The effect that adds unslaked lime is that the heat that utilizes quicklime slaking to produce is kept temperature of reaction, and regulates the pH value of fertilizer.The fertilizer granularity of making is generally _ 5mm column.

Accompanying drawing is the Production Flow Chart synoptic diagram of this compound manure.

Organic-inorganic polyelement composite fertilizer provided by the invention both contained Nitrogen, phosphorus, potassium three big nutrients are arranged, contain organic matter again, corruption is planted Hydrochlorate and trace element can be guaranteed high crop yield, promote crop to give birth to Long, insect protected drought resisting can also improve soil. The inventive method is produced to be had The plain compound fertilizer of machine-inorganic multivariate has simple, the investment of technology Economize, floor space is little, production cost is low, product fertilizer efficiency height, economy Profitable advantage.

Embodiment: get 60kg rapeseed oil oil cake, the adding massfraction is 2% copper sulfate-ammonia soln 10kg, mixes back hill reaction 24 hours thoroughly, adds 2kg unslaked lime then, regulates pH value to 7.Urea 10kg, the vitriolate of tartar 8kg, the normal superphosphate 20kg that then learn from else's experience and pulverize mix with oil cake after the above-mentioned processing, stir, send into the granulation of extruder grain shaper then, make it _ the 5mm column form object, last drying, screening, with the qualified part packing, approximately finished product 100kg.

Claims

1. polyelement composite fertilizer, it is characterized in that it is that to be copper sulfate-ammonia soln of 2% carry out mixed-stacking with the residue (oil cake) of squeezing vegetables oil handles with massfraction, the quality of this solution is the 20%-30% of oil cake quality, regulate pH value with unslaked lime after 24 hours, and a kind of organic-inorganic polyelement composite fertilizer of making according to prescription needs adding nitrogen, phosphorus, potash fertilizer.

2. according to the preparation method of the described polyelement composite fertilizer of claim 1, it is characterized in that this method comprises the steps:

3. according to the preparation method of the described polyelement composite fertilizer of claim 2, it is characterized in that used nitrogenous fertilizer can be bicarbonate of ammonia, urea, ammonium nitrate, used phosphate fertilizer can be normal superphosphate, double superhosphate, ammonium nitrate, and used potash fertilizer can be Repone K, saltpetre, vitriolate of tartar.