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 (2

Method used

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  • A liquid fertilizer containing biogas slurry

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1 (refer to the raw materials and weight parts corresponding to Example 1 in the table):

[0018] Take 50 parts by weight (the same below) of biogas slurry concentrate, mix 20 parts of urea, 15 parts of KH 2 PO 4 , 1 part CaCl 2 , 2 parts MgSO 4 ·7H 2 Put O into the biogas slurry to dissolve and mix thoroughly, then add 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 CuSO 4 ·5H 2 O, 0.1 part of MnCl 2 ·4H 2 O, 3 parts of citric acid (monohydrate) and 1 part of ascorbic acid were separately mixed into the solution, and 1 part of surfactant polysorbate 80, namely Tween 80, was added, and mixed thoroughly to make a liquid fertilizer stock solution, and then use the stock solution weight Dilute with 500-1000 times industrial water, use 1% H 2 SO 4 Or adjust the pH to 6 with 1% HCl to become the nutrient solution for soilless culture. Consider Cl - Excessive presence of ions in the soil is un...

Example Embodiment

[0019] Example 2 (refer to the corresponding raw materials and weight parts of Example 2 in the table):

[0020] Take 80 parts of biogas slurry concentrate, then mix 30 parts of urea, 25 parts of KH 2 PO 4 , 3 parts CaCl 2 , 40 parts MgSO 4 ·7H 2 O were put into the biogas slurry to fully dissolve and mix, and then 1.5 parts of FeCl 3 ·6H 2 O, 1 part of ZnSO 4 ·7H 2 O, 1 part H 3 BO 3 , 0.7 parts (NH 4 ) 6 Mo 7 O 24 ·4H 2 O, 0.3 parts CuSO 4 ·5H 2 O, 0.2 parts MnCl 2 ·4H 2 O, 5 parts of citric acid (monohydrate) and 5 parts of ascorbic acid are respectively mixed into the solution, and finally 5 parts of surfactant polysorbate 80 parts (Tween 80) are added, mixed thoroughly, and then made into liquid fertilizer stock solution, and then used The weight of the stock solution is diluted with industrial water of 1000-2000 times, and the pH is adjusted to 7 with 1% HCl to become a foliar fertilizer that can be directly applied for spraying.

Example Embodiment

[0021] Example 3 (refer to Example 3 in the table for the corresponding raw materials and their parts by weight value):

[0022] Take 65 parts of biogas slurry concentrate, then mix 25 parts of urea, 20 parts of KH 2 PO 4 , 2 parts CaCl 2 , 3 parts MgSO 4 ·7H 2 O were put into the biogas slurry to fully dissolve and mix, 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 CuSO 4 ·5H 2 O, 1.5 parts MnCl 2 ·4H 2 O, 4 parts of citric acid (monohydrate) and 3 parts of ascorbic acid are respectively dissolved in the solution, and 3 parts of surfactant polysorbate 80, namely Tween 80, are added, and mixed thoroughly to prepare a liquid fertilizer with a pH of 7-8.5 Stock solution, short-term storage for future use. Temporarily dilute and adjust the pH to 6.5 when needed. Although most of the commonly used chemical fertilizers and organic fertilizers are alkaline fertilizers, most of the elements in ...

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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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