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Long-lasting slow-release fertilizer and preparation method thereof

A slow-release fertilizer, long-acting technology, applied in fertilizer mixtures, phosphate fertilizers, fertilization devices, etc., can solve problems such as little difference and no completely unified concept, reduce dosage, eliminate excessive waste, and improve fertilizer utilization. Effect

Pending Publication Date: 2019-12-06
东台市安丰镇农业技术推广综合服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the definition and standards of slow and controlled release nitrogen fertilizers are still in the development stage, and there is no completely unified concept among different countries and regions, but generally speaking, there is little difference

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of long-acting slow-release fertilizer, comprising the following contents:

[0033] 1) Mix and pulverize palm leaves, bamboo roots, shell powder and plant ash, and mix with water at a weight ratio of 1:0.2, and add yeast, after stirring, ferment for 10 days under airtight conditions at room temperature, and separate the filter residue and The filtrate is ready for use;

[0034] 2) Mix and pulverize calcium-based silicate ore, bauxite, and superphosphate, pass through an 80-100 mesh sieve, and heat-treat at 400°C for 1 hour, and set aside;

[0035] 3) Mix modified lignin and silicone emulsion, heat to 40°C, and stir for 50 minutes to make a slow-release coating agent;

[0036] 4) Mix urea, part of ammonium chloride, part of potassium sulfate, part of rare earth and water into the granulator for granulation, then send the prepared granules into the coating machine, control the temperature of the coating machine to 50°C, and Surface spraying step 3) ...

Embodiment 2

[0043] A preparation method of long-acting slow-release fertilizer, comprising the following contents:

[0044] 1) Mix and crush palm leaves, bamboo roots, shell powder, plant ash and mushroom bag waste, and mix with water at a weight ratio of 1:0.25, and add yeast, after stirring, ferment for 15 days under airtight conditions at room temperature, and the fermentation ends Finally, separate the filter residue and filtrate for subsequent use;

[0045] 2) Mix and pulverize calcium-based silicate ore, bauxite, and superphosphate, pass through a 90-mesh sieve, and heat-treat at 450°C for 1.5 hours, and set aside;

[0046] 3) Mix the modified lignin and silicone emulsion, heat to 45°C, and stir for 55 minutes to make a slow-release coating agent;

[0047] 4) Mix urea, part of ammonium chloride, part of potassium sulfate, part of rare earth and water into the granulator for granulation, then send the prepared granules into the coating machine, control the temperature of the coating...

Embodiment 3

[0054] A preparation method of long-acting slow-release fertilizer, comprising the following contents:

[0055] 1) Mix and pulverize palm leaves, bamboo roots, shell powder and plant ash, and mix with water at a weight ratio of 1:0.3, and add yeast, after stirring, ferment for 20 days under airtight conditions at room temperature, and separate the filter residue and The filtrate is ready for use;

[0056] 2) Mix and pulverize calcium-based silicate ore, bauxite, and superphosphate, pass through a 100-mesh sieve, and heat-treat at 450°C for 2 hours, and set aside;

[0057] 3) Mix the modified lignin and silicone emulsion, heat to 50°C, and stir for 60 minutes to make a slow-release coating agent;

[0058] 4) Mix urea, part of ammonium chloride, part of potassium sulfate, part of rare earth and water into the granulator for granulation, then send the prepared granules into the coating machine, control the temperature of the coating machine to 60°C, and Surface spraying step 3)...

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PUM

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Abstract

The invention provides a long-lasting slow-release fertilizer which comprises the following components in parts by weight: 30-45 parts of urea, 10-12 parts of ammonium chloride, 12-15 parts of potassium sulfate, 4-8 parts of plant ash, 25-30 parts of an organic composting fertilizer, 4-9 parts of shell powder, 2-7 parts of kieselguhr, 3-7 parts of humic acid, 1-3 parts of a calcium-based silicatemineral, 5-10 parts of modified lignin, 0.01-0.02 part of sodium benzoate, 2-7 parts of an organosilicone emulsion, 5-6 parts of palm leaves, 0.1-0.2 part of calcium superphosphate, 1-3 parts of bamboo roots, 3-5 parts of bauxite and 0.005-0.01 part of rare earth. By adopting the long-lasting slow-release fertilizer provided by the invention, nutrition components are slowly released, the activityand the nutrition circulation of nutrient soil self can be maintained for a long time, and defects that nutrients are excessively wasted at early growth stage of plants and later supply is insufficient can be eliminated, so that the utilization rate of the fertilizer can be greatly increased, and the amount can be reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, in particular to a long-acting slow-release fertilizer and a preparation method thereof. [0002] technical background [0003] At present, the definition and standards of slow and controlled release nitrogen fertilizers are still in the development stage, and there is no completely unified concept among different countries and regions, but generally speaking, there is little difference. For example, the American Plant Food Administration (AAPFCO) stipulates that slow and controlled release nitrogen fertilizer means that when the fertilizer is applied to the soil, the nutrients contained in it can be released slowly and stay in the soil for a longer period of time, or it means that it can be combined with quick-acting fertilizer (such as urea, ammonium bicarbonate and other traditional fertilizers), it can provide plants with the nutrients they need in a longer period of time. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04
CPCC05B1/02C05G3/00
Inventor 伍丹华
Owner 东台市安丰镇农业技术推广综合服务中心