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A kind of chitin fulvic acid compound fertilizer and its preparation method

A technology of compound fertilizer and fulvic acid, which is applied in fertilizer mixture, fertilization device, application, etc., can solve the problems of large stomatal opening degree, poor drought resistance and stress resistance, and incomplete nutrient elements of crop leaves, so as to improve the quality of crops. Quality, easy loss, and the effect of improving fertilizer utilization rate

Inactive Publication Date: 2011-12-07
SHANDONG FUYUAN FERTILIZER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary compound fertilizers either supply fertilizer quickly in the early stage, or supply fertilizer insufficiently in the later stage, and the nutrient elements are not comprehensive, so it is difficult to meet the nutrient requirements of the crop growth cycle. Poor quality, low yield, and cause soil compaction, nutrient loss, and environmental pollution. After the application of ordinary compound fertilizers, the stomata on the leaf surface of the crops are large, the root system is underdeveloped, and the ability to resist drought and stress is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A chitin fulvic acid compound fertilizer, the weight ratio of each component is: 4 kg of chitin, 4 kg of fulvic acid, 15 kg of phosphorus nitrate, 20 kg of urea, 15 kg of urea formaldehyde, 25 kg of diammonium phosphate, and 20 kg of potassium sulfate kg, calcium nitrate 0.6kg, magnesium sulfate 0.6kg, zinc sulfate 0.5 kg, ferrous sulfate 0.2 kg, manganese sulfate 0.2 kg, copper sulfate 0.3 kg, boric acid 0.4kg, ammonium molybdate 0.1kg, rare earth element-praseodymium nitrate 0.3kg .

[0027] The preparation method is as follows:

[0028] (1) First weigh the raw materials according to the above weight ratio;

[0029] (2) Then add water into the reaction kettle, raise the temperature to 65°C, add the weighed chitin and fulvic acid, stir to dissolve; add the weighed calcium nitrate after dissolution, stir to dissolve and keep the temperature for 15-20 minutes to The chelation reaction is complete;

[0030] (3) After the chelation is complete, add the weighed magnesium...

Embodiment 2

[0036] A chitin fulvic acid compound fertilizer, the weight ratio of each component is: chitin 5kg, fulvic acid 5 kg, phosphorus nitrate 10kg, urea 10kg, urea formaldehyde 10 kg, diammonium phosphate 25kg, potassium sulfate 35kg , calcium nitrate 2kg, magnesium sulfate 0.5 kg, zinc sulfate 0.5 kg, copper sulfate 0.5 kg, boric acid 1 kg, rare earth element - cerium chloride 0.3 kg.

[0037] The preparation method is as follows:

[0038] (1) First weigh the raw materials according to the above weight ratio;

[0039] (2) Then add water to the reaction kettle, raise the temperature to 60°C, add the weighed chitin and fulvic acid, stir to dissolve; add the weighed calcium nitrate after dissolution, stir to dissolve and keep the temperature for 15-20 minutes to The chelation reaction is complete;

[0040](3) After the chelation is complete, add the weighed magnesium sulfate, zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate, boric acid, ammonium molybdate, rare eart...

Embodiment 3

[0046] A chitin fulvic acid compound fertilizer, the weight ratio of each component is: 6 kg of chitin, 6 kg of fulvic acid, 10 kg of phosphorus nitrate, 10 kg of urea, 15 kg of urea formaldehyde, 30 kg of diammonium phosphate, and 30 kg of potassium sulfate , 5 kg of calcium nitrate, 3 kg of magnesium sulfate, 5 kg of zinc sulfate, 0.3 kg of copper sulfate, 0.2 kg of manganese sulfate, 0.5 kg of boric acid, and 0.4 kg of rare earth element-lanthanum sulfate.

[0047] The preparation method is as follows:

[0048] (1) First weigh the raw materials according to the above weight ratio;

[0049] (2) Then add water into the reaction kettle, raise the temperature to 70°C, add the weighed chitin and fulvic acid, stir to dissolve; add the weighed calcium nitrate after dissolution, stir to dissolve and keep the temperature for 15-20 minutes to The chelation reaction is complete;

[0050] (3) After the chelation is complete, add the weighed magnesium sulfate, zinc sulfate, ferrous su...

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Abstract

The invention discloses a chitosan-fulvic acid compound fertilizer and a preparation method thereof. The compound fertilizer comprises chitosan, fulvic acid, nitric phosphate, urea, urea formaldehyde, diammonium phosphate, potassium sulphate, medium and trace elements and rare earth elements. In the preparation method, the medium and trace elements are chelated by taking chitosan and fulvic acid as chelating agents, and a chelated liquid is taken as a bonding agent for producing and granulating simultaneously. The invention has the advantages that: the chitosan-fulvic acid compound fertilizeris only applied once without additional application in the entire growing period of crops, so that the cost can be lowered, the labor productivity is lowered, the problems of slow fertilizing at an early stage and insufficient fertilizing at a later stage existing in an ordinary fertilizer are solved, mutual help is given in an emergency, and the utilization ratio of the fertilizer is increased; the medium and trace elements are chelated by using the chitosan and the fulvic acid respectively, so that the chelating efficiency of the medium and trace elements is increased, and the absorption and utilization ratio of crops on the medium and trace elements is increased; and the chelated liquid is taken as a granulating bonding agent, so that the granulating rate is high, the production efficiency is high, other bonding agents do not need to be added, and the cost is saved.

Description

technical field [0001] The invention relates to a compound fertilizer, in particular to a chitin fulvic acid compound fertilizer and a preparation method thereof, belonging to the field of agricultural production fertilizers. Background technique [0002] At present, ordinary compound fertilizers either supply fertilizer quickly in the early stage, or supply fertilizer insufficiently in the later stage, and the nutrient elements are not comprehensive, so it is difficult to meet the nutrient requirements of the crop growth cycle. Poor quality, low yield, and cause soil compaction, nutrient loss, and environmental pollution. After the application of ordinary compound fertilizers, the stomata on the leaf surface of the crops are large, the root system is underdeveloped, and the ability to resist drought and stress is poor. Contents of the invention [0003] In order to solve the above problems, the present invention provides a chitin fulvic acid compound fertilizer and a prep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 李德金赵建华冯慧伊茹
Owner SHANDONG FUYUAN FERTILIZER IND
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