CN1468831A

CN1468831A - Application of amino acid-trace element chelate in composite fertilizer

Info

Publication number: CN1468831A
Application number: CNA021379726A
Authority: CN
Inventors: 邵建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-18
Filing date: 2002-07-18
Publication date: 2004-01-21

Abstract

Trace element chelate is added into composite fertilizer to reach the aim of balanced fertilizer application and meeting the need of plant to various elements. Via chelating of amino acid, the trace elements are in relatively stable state without producing bad side reaction with carbonate and phosphate in soil. The present invention solves the problem of adding trace elements into composite fertilizer and makes it possible to raise fertilizer utilization and crop quality.

Description

The application of microelement chelate in composite fertilizer in the amino acid

The present invention relates to the application in composite fertilizer of microelement chelate in the seed amino acid, be a kind of specifically, be mixed with a kind of big or middle, micronutrient equilibrated composite fertilizer adding in the composite fertilizer behind amino acid and middle trace element, the beneficial element chelating.

Balance fertilizing is an insoluble problem in the agriculture production always, and the necessary element of the growth of farm crop reaches kind more than ten.The Agricultural Scientist reduces this mutual relationship of essential element fertilizer three big laws of fertilizer: 1. rule of equal importance, promptly macroelement is of equal importance, indispensable with trace element.2. irreplaceable rule, various essential nutrient elements can not the phase trans-substitutions, lack what element and must execute what unit's fertilizer.3. law of minimum nourishment will guarantee that the crop normal growth is grown and the acquisition high yield, must satisfy its needed all nutritive element, and one of them does not reach the quantity that needs, and production will be affected, and output is restricted by this minimum nutritive element just.

In China, the balance of macroelement, be familiar with by people and dropped into actual use, middle trace element role in balance fertilizing has caused that the agro-technician pays much attention to, but owing to metallic elements such as the Ca in the middle trace element, Mg, Fe, Cu, Mn, Zn very easily with fertilizer and soil in carbonate and phosphate radical react and lost efficacy, even in fertilizer, allocate into q.s in little fertilizer, farm crop also can't absorb by configuration proportion, so cause balance to join fertilizer but a difficult problem that farm crop can't balance absorb.About 30%, except other factors, the imbalance of middle trace element is its key to the utilization rate of fertilizer of China always.

Chinese patent 96100048.1 discloses a kind of foliage fertilizer; Chinese patent 96100300.6 discloses a kind of foliage fertilizer that contains multiple amino acids and trace element and preparation method thereof; Chinese patent 95111288.0 discloses amino acid biological nutritious extract; Chinese patent 96117083.2 discloses serial compound rare-earth trace element fertilizer and production method thereof; Its common ground is with amino acid and middle trace element, rare earth elements etc. generate inner complex, micro-assimilation effect is poor in efficiently solving as foliage fertilizer, easily and the problem of some material generation side reactions in the soil, has improved middle trace element utilizing rate, but because this fertilizer is to be dissolved in water to make foliage-spray, increased labour intensity, especially when crop growth is vigorous, the field operational difficulty, the sprinkling difficulty is big, easily damage is caused in the crops.Patent 95118478.4 is produced a kind of amino acid granular compound fertilizer, directly is manured into soil as base manure, has avoided the problems referred to above, and shortcoming is that this method adds amino-acid chelate in the peat composed of rotten mosses of phosphate fertilizer and humic acids, big first fertilizer N, K nutrient deficiency.Chinese patent 93191274.0 discloses all-sided fertilizer and production technique thereof, and its method is the fertilizer that utilizes the end water of boiling bone to make, though the fertilizer that this several years kind methods are produced all contains big or middle, trace element, raw material sources are few, can't mass production.

Characteristics of the present invention are the amino acid of producing by all means, chelating adds that N, P, K are inorganic in one or more behind trace element and the beneficial element, granulation in the compoiste fertilizer, make N, P, K total nutrient reach 15-45%, middle microelement chelate reaches 0.5-5%.Directly chelating amino acids liquid is replaced the granulation water during granulation, it is sprayed into granulation dish or cylinder tablets press, granulation can utilize the equipment of former composite fertilizer factory, less investment, and technology is simple, and is easy to operate, do not increase energy consumption.

The present invention realizes like this; in compositing acid solution; the inorganic salt or the oxide compound of trace element in the adding; mol ratio is amino acid: inorganic salt=1.5-3.5: 1; be heated to 80-120 ℃; chelatropic reaction 1-4 hour, surplus heat be sprayed on granulation dish or cylinder tablets press with N, the P, K compound fertilizer granulating, the oven dry that mix, cool off, sieving is amino acid granular compound fertilizer.

Embodiment 1

Using from the concentration of discharging in the Gelucystine production is 17% mother liquor 2000kg, adds ZnSO ₄7H ₂O 300kg, agricultural rare earth chloride 100kg are in 3000 liters of enamel reaction stills, and the passageway is heated to 110 ℃, chelatropic reaction 3 hours, blowing, be sprayed on the granulation of granulation dish with pressure pump, composite fertilizer per ton liquid add-on is 80-100kg, and the proportioning of Nitrogen, Phosphorus and Potassium is N: P ₂O ₅: K ₂O=15: 10: 10, all the other added stone powders or embossing powder as stopping composition, dry after the granulation, were N, P, K nutrient and are 35% Nitrogen, Phosphorus and Potassium.

Embodiment 2

In the 3000L enamel reaction still, add useless chicken feather 1000kg, 35% H ₂SO ₄2000kg, FeSO ₄7H ₂O 100kg, ZnSO ₄7H ₂O 100kg, MnSO ₄100kg, MgSO47H ₂O 150kg, dissolving is heated to 100-117 ℃, and the hydrolysis chelating was trace element chelated liquid in the amino acid in 8 hours, and surplus heat is sprayed on the cylinder tablets press, with the N that stirs, P, K mixing granulation, N, P ₂O ₅, K ₂The ratio of O is 15: 10: 15, and the add-on of chelating amino acids liquid is 60-80kg/T.

Embodiment 3

In 3000L enamel reactor, add depleted dregs of rapeseed cake 1000kg, 35% H ₂SO ₄1800kg, ZnSO ₄7H ₂O 300kg is heated to 100-120 ℃, and hydrolysis chelating 5 hours filters, and filtrate is zinc-amino acid chelate.In addition with chicken manure 250kg, peat composed of rotten mosses 300kg, hydrolysis filter residue 50kg, urea 100kg, calcium superphosphate 100kg, stir, send into the granulation dish by rotary conveyor, spray into 80-100kg amino-acid zinc chelating liquid, be amino acid organic and inorganic composite fertilizer after granulation, oven dry, the cooling.

Claims

1, the present invention is to be main raw material with the aminoacids complex, adds behind trace element and the beneficial element in essential at least a above of chelating farm crop that granulation forms in N, P, the K organic or inorganic composite fertilizer.

2, aminoacids complex according to claim 1 comprises the product that is obtained by following chemical reaction:

A: mother liquor that produces during Gelucystine is produced and secondary mother liquid.

B: various discarded albumen are carried out acid hydrolysis, basic hydrolysis or the fermentation aminoacids complex that hydrolysis obtained.

C: the mother liquor that glutamate production mother liquor, D-glucosamine hydrochloride produce in producing, and the amino acid mother liquor of other method acquisition.

3, moderate-element according to claim 1 is Ca, Mg, S, and trace element is wherein one or more such as Fe, Cu, Mn, Zn, B, Mo, and beneficial element is other beneficial element of generally acknowledging such as rare earth, Ti, Ni, Co.

4, N according to claim 1, P, K can be organically, also can be inorganic, can be one or two kind, also can be three kinds.

5, process for sequestration according to claim 1 is:

A: when making sequestrant with the amino acid mother liquor, the total mole number of aminoacids complex be the middle micro-total mole number that adds 1.5-3.5 doubly, time 2-5 hour, temperature 80-120 ℃.

B: when being raw material, be HCl, the H of 20-45% that discarded albumen is added the 20-35% that 1.5-2.5 doubly measures with discarded albumen ₂SO ₄Or adding HNO ₃, HCl, H ₂SO ₄Deng hydrolysis in the mixing acid, add the middle trace element of amount of amino acid 1.5-3.5 mole simultaneously, at 100-120 ℃ of following catalytic hydrolysis 4-10 hour.

6, prilling process according to claim 1 can be a drum granulating, and spray granulating also can be an extruder grain.

7, be 1-10% according to the add-on of microelement chelate in composite fertilizer in claim 1 amino acid.