Alginic acid-containing nitrogen-phosphorus-potassium compound fertilizer and preparation process thereof

A nitrogen-phosphorus-potassium compound fertilizer and a preparation process technology are applied in the field of nitrogen-phosphorus-potassium compound fertilizer and its preparation process, which can solve problems such as unfavorable root growth of agricultural products, poor soil conditioning effect, single function, etc., and improve overall growth and survival rate. , significantly inhibiting ability, improving the effect of void space

Inactive Publication Date: 2021-11-30
王兴民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the compound fertilizer currently on the market has a single function, and the corresponding soil conditioning effect is poor, which is not conducive to the growth of the root system of agricultural products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a NPK compound fertilizer containing alginic acid comprises the following materials in parts by weight: 25 parts of alginic acid powder, 40 parts of urea, 15 parts of animal bone, 20 parts of potassium carbonate, and 10 parts of biogas slurry.

[0022] A preparation process of alginic acid-containing nitrogen, phosphorus and potassium compound fertilizer, comprising the following preparation steps:

[0023] S1: Put the alginic acid powder into an electric heating stirrer, add an appropriate amount of water and stir evenly, and react in an environment of 68°C for 5 hours to prepare an alginic acid solution;

[0024] S2: Crack the animal bones and place them in a steam pot, steam for 4-4.5 hours to remove grease and bone glue, take out the animal bones to dry and cool, then dry and crush them through a 60-mesh sieve to obtain degummed bone powder, which contains 30% phosphorus % or more, nitrogen content between 0.5-1%, with hig...

Embodiment 2

[0035] Completely prepared according to the scheme of Example 1, the difference from Example 1 is: a kind of nitrogen, phosphorus and potassium compound fertilizer containing alginic acid, including the following materials in parts by weight: 25 parts of alginic acid powder, 40 parts of urea, 15 parts of animal bone , potassium carbonate 20, biogas slurry 10 parts.

[0036] S1: Put the alginic acid powder into an electric heating stirrer, add an appropriate amount of water and stir evenly, and then react in an environment of 60°C for 5 hours to prepare an alginic acid solution;

[0037] Further, the stirring speed of the stirrer in S3 is 720 r / min, and the stirring temperature is 60°C.

[0038] Further, in S4, the preheating temperature is 42°C, the drying temperature is 72°C, and the drying time is 60 minutes.

experiment example

[0040] Experimental groups: Example 1, Example 2 and comparative examples (commonly available similar fertilizers on the market);

[0041] Experimental crops: lettuce;

[0042] Experimental method: select three farmlands with similar soil quality (each farmland area is 1 mu) to plant the same variety of lettuce, and use the products of Example 1, Example 2 and Comparative Example 1 to fertilize the three farmlands respectively, and record the lettuce Vegetable survival, number of dead plants, quality per plant and yield per mu;

[0043] Experimental results:

[0044] Survival rate

[0045] Random area sampling number of plants Number of surviving plants Number of dead plants Survival rate Example 1 2000 1986 14 99.3% Example 2 2000 1926 74 96.3%87.95 comparative example 2000 1759 241 87.95

[0046] Plant quality and yield per mu

[0047] Number of investigated plants plant height number of blades Weight per ...

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PUM

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Abstract

The invention relates to the technical field of production of compound fertilizers, in particular to a nitrogen-phosphorus-potassium compound fertilizer containing alginic acid and a preparation process thereof. The fertilizer is prepared from alginic acid powder, urea, animal bones, potassium carbonate and biogas slurry. The dosage of the fertilizer is accurate, the compound fertilizer is green and environmentally friendly, a natural compound sodium alginate inalginic acid can be used as a soil conditioner to promote the formation of a soil aggregate structure, and improve the internal void space of the soil, the proportion of solid, liquid and gas in the soil is adjusted to recover the natural colloid balance lost due to excessive soil burden and chemical pollution, the biological activity of soil is increased, available nutrients are released, beneficial organisms in the soil are activated, root growth of crops is facilitated, the stress resistance of the crops is improved, the animal bones are crushed after being cooked to remove grease and bone glue, the content of phosphorus and nitrogen can be increased, and the fertilizer efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of compound fertilizer production, in particular to a nitrogen, phosphorus and potassium compound fertilizer containing alginic acid and a preparation process thereof. Background technique [0002] Compound fertilizers are chemical fertilizers containing any two or three of crop nutrients nitrogen, phosphorus, and potassium made by chemical methods or (and) mixed methods, mainly to provide necessary nutrients for crop growth, and to affect the yield and quality of agricultural products. play a vital role. [0003] However, the compound fertilizer currently on the market has a single function, and the corresponding soil conditioning effect is poor, which is not conducive to the growth of the root system of agricultural products. Therefore, those skilled in the art provide a NPK compound fertilizer containing alginic acid and its preparation process to solve the problems raised in the above-mentioned backgrou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/60C05G3/80C05G5/12C05G5/30C05B17/00C05F9/04C08B37/04
CPCC05G3/00C05G3/60C05G3/80C05G5/12C05G5/37C05B17/00C05F9/04C08B37/0003C08B37/0084C05C9/00C05D1/00Y02E50/30Y02A40/20
Inventor 王兴民
Owner 王兴民
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