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A liquid fertilizer containing biogas slurry

A technology of liquid fertilizer and biogas slurry, applied in the field of liquid fertilizer, to achieve the effect of rich and perfect nutrient composition, stable fertilizer efficiency and sufficient source of materials

Inactive Publication Date: 2009-10-07
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there are many related patents on liquid fertilizers, such as the method for producing liquid fertilizers from the waste liquid of pharmaceutical factories (200710149831), organic liquid fertilizers (200510048685), liquid fertilizers containing wood vinegar or grass vinegar (200510061139), promoting plant The growing liquid fertilizer (200510127528), liquid plant foliar fertilizer (CN94117723.4) etc., but, so far the existing liquid foliar fertilizer is mostly with water as the liquid phase carrier, adding a large number of or trace elements to make, and using marsh There is no relevant report on the liquid fertilizer made by adding essential plant nutrients to the liquid phase carrier.

Method used

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  • A liquid fertilizer containing biogas slurry

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 (with reference to the raw material corresponding to Embodiment 1 and parts by weight thereof in the table):

[0018] Get 50 parts by weight (the same below) biogas slurry concentrate, 20 parts of urea, 15 parts of KH 2 PO 4 , 1 part of CaCl 2 , 2 parts of MgSO 4 ·7H 2 O was put into the biogas slurry to fully dissolve and mix well, and then 1 part of FeCl 3 ·6H 2 O, 0.8 parts of ZnSO 4 ·7H 2 O, 0.5 parts of H 3 BO 3 , 0.4 parts (NH 4 ) 6 Mo 7 o 24 4H 2 O, 0.2 parts of CuSO 4 ·5H 2 O, 0.1 part of MnCl 2 4H 2 0, 3 parts of citric acid (monohydrate), 1 part of ascorbic acid are melted into the solution respectively, add 1 part of surfactant polysorbate 80 namely Tween 80, make liquid fertilizer stock solution after fully mixing, then use this stock solution weight 500-1000 times diluted with industrial water, with 1% H 2 SO 4 Or adjust the pH to 6 with 1% HCl to become a nutrient solution for soilless cultivation. Consider Cl - Excessive...

Embodiment 2

[0019] Embodiment 2 (with reference to embodiment 2 corresponding raw material and weight portion thereof in the table):

[0020] Take 80 parts of biogas slurry concentrate, then add 30 parts of urea, 25 parts of KH 2 PO 4 , 3 parts of CaCl 2 , 40 parts of MgSO 4 ·7H 2 O was put into the biogas slurry to fully dissolve and mix well, and then 1.5 parts of FeCl 3 ·6H 2 O, 1 part ZnSO 4 ·7H 2 O, 1 H 3 BO 3 , 0.7 parts (NH 4 ) 6 Mo 7 o 24 4H 2 O, 0.3 parts of CuSO 4 ·5H 2 O, 0.2 parts of MnCl 2 4H 2 0, 5 parts of citric acid (monohydrate), 5 parts of ascorbic acid are melted into solution respectively, finally add 80 parts of surfactant polysorbates (Tween 80), make liquid fertilizer stock solution after fully mixing, use again The stock solution is diluted with 1000-2000 times the weight of industrial water, adjusted to pH 7 with 1% HCl, and then becomes a directly applicable foliar fertilizer for spraying.

Embodiment 3

[0021] Embodiment 3 (with reference to embodiment 3 corresponding raw material and weight portion value thereof in the table):

[0022] Take 65 parts of biogas slurry concentrate, then add 25 parts of urea, 20 parts of KH 2 PO 4 , 2 parts of CaCl 2 , 3 parts of MgSO 4 ·7H 2 O was put into the biogas slurry to fully dissolve and mix well, and then 1.2 parts of FeCl 3 ·6H 2 O, 0.9 parts of ZnSO 4 ·7H 2 O, 0.7 parts of H 3 BO 3 , 0.55 parts (NH 4 ) 6 Mo 7 o 24 4H 2 O, 2.5 parts of CuSO 4 ·5H 2 O, 1.5 parts of MnCl 2 4H 2 0, 4 parts of citric acid (monohydrate), 3 parts of ascorbic acid are dissolved in the solution respectively, add 3 parts of surfactant polysorbate 80 namely Tween 80, make the liquid fertilizer that pH is 7-8.5 after fully mixing Stock solution, short-term storage for future use. Dilute and adjust pH to 6.5 temporarily as needed just before application. Although commonly used chemical fertilizers and organic fertilizers are mostly alkaline fe...

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Abstract

A liquid fertilizer containing biogas slurry is composed of 50-80 weight parts (the same as below) of biogas slurry concentrated solution, 20-30 parts of urea, 15-25 parts of potassium dihydrogen phosphate, 1-3 parts of calcium chloride, 2 -4 parts of magnesium sulfate heptahydrate, 1-1.5 parts of ferric chloride hexahydrate, 0.8-1 parts of zinc sulfate heptahydrate, 0.5-1 parts of boric acid, 0.4-0.7 parts of ammonium molybdate tetrahydrate, 0.2-0.3 parts of cupric sulfate pentahydrate, 0.1-0.2 parts of manganese chloride tetrahydrate, 3-5 parts of citric acid monohydrate, 1-5 parts of ascorbic acid, 1-5 parts of tween 80, whose pH value is 7-8.5, the use of liquid fertilizer is diluted 500-2000 times with water, the pH value is adjusted to 6-7 by acid, the liquid fertilizer can be used as soilless culture and / or foliage fertilizer to spray, has advantages of stable fertilizer, rich and perfect nutrient ingredients, abundant sources of material, low cost, environmental protection, large usable floor area due to convenient transportation.

Description

technical field [0001] The invention relates to a liquid fertilizer, which is a mixed liquid fertilizer composed of various fertilizers, vitamins and active agents. Background technique [0002] Biogas fermentation residual liquid (biogas slurry) is a typical high-quality organic fertilizer, which is usually moderately weakly alkaline (the pH of decomposed biogas liquid in the methanogenic stage is generally 7.0-8.5), and the loss of carbon removal is relatively large (mainly CH 4 and CO 2 ), still retains 90% of the raw material nutrients, and the biogas slurry also contains rich trace elements (such as Fe, Zn, Cu, B, Mo, etc.), a variety of plant auxins (such as gibberellin, indole acetic acid, etc. ), B vitamins, and certain antibiotics. The nitrate content of fruits and vegetables treated with biogas slurry was reduced, the Vc content was increased, and the quality was significantly improved. It is also reported that biogas slurry has a good control effect on 23 disea...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01C21/00C05F5/00C05C9/00C05D9/02
CPCY02A40/20
Inventor 张进张妙仙单胜道
Owner ZHEJIANG FORESTRY UNIVERSITY
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