Slow release fertilizer for rice planting and preparation method thereof

A technology of slow-release fertilizer and rice, which is applied in the field of slow-release fertilizer for rice planting and its preparation, which can solve the problems of fertilizer washing away and low fertilizer utilization rate, and achieve the effect of reducing the frequency of fertilization, reducing harm and excellent growth

Inactive Publication Date: 2018-01-05
桐城市天天家庭农场有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fertilization is mainly to supplement the elements necessary for rice growth, but if it is applied too often or in large quantities, it will have the opposite effect, and most of the fertiliz

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] A slow-release fertilizer for rice planting, which is composed of 50 parts by weight of compound fertilizer raw materials and 20 parts of wrapping materials; wherein the compound fertilizer raw materials are composed of the following raw materials by weight: 30 parts by weight of straw and 30 parts by weight of urea Parts, 10 parts of zinc sulfate, 15 parts of potassium sulfate, 20 parts of monoammonium phosphate, 30 parts of potassium dihydrogen phosphate, 10 parts of calcium superphosphate; wherein the wrapping material is composed of the following parts by weight of raw materials: 15 parts of lignin, two parts 20 parts of silicon oxide, 2 parts of sodium alginate, 3 parts of diphenylmethane diisocyanate, and 6 parts of sodium lauryl sulfate.

[0022] A method for preparing the above-mentioned slow-release fertilizer for rice cultivation includes the following steps:

[0023] (1) Preparation of compound fertilizer raw materials: a. Add the above-mentioned...

Example Embodiment

[0026] Example 2

[0027] A slow-release fertilizer for rice planting, which is composed of 70 parts by weight of compound fertilizer raw materials and 40 parts of wrapping materials; wherein the compound fertilizer raw materials are composed of the following raw materials by weight: 45 parts by weight of straw and 60 parts by weight of urea Parts, 30 parts of zinc sulfate, 35 parts of potassium sulfate, 40 parts of monoammonium phosphate, 40 parts of potassium dihydrogen phosphate, 25 parts of superphosphate; wherein the wrapping material is composed of the following parts by weight of raw materials: 25 parts of lignin, two parts 30 parts of silicon oxide, 9 parts of sodium alginate, 7 parts of diphenylmethane diisocyanate, and 11 parts of sodium lauryl sulfate.

[0028] A method for preparing the above-mentioned slow-release fertilizer for rice cultivation includes the following steps:

[0029] (1) Preparation of compound fertilizer raw materials: a. Add the above-mentioned parts ...

Example Embodiment

[0032] Example 3

[0033] A slow-release fertilizer for rice planting, which is composed of 60 parts by weight of compound fertilizer raw materials and 30 parts of wrapping materials; wherein the compound fertilizer raw materials are composed of the following raw materials by weight: 38 parts by weight of straw and 45 parts by weight of urea Parts, 20 parts of zinc sulfate, 25 parts of potassium sulfate, 30 parts of monoammonium phosphate, 35 parts of potassium dihydrogen phosphate, 17 parts of superphosphate; wherein the wrapping material is composed of the following parts by weight of raw materials: 20 parts of lignin, two parts 25 parts of silicon oxide, 6 parts of sodium alginate, 5 parts of diphenylmethane diisocyanate, 8 parts of sodium lauryl sulfate.

[0034] A method for preparing the above-mentioned slow-release fertilizer for rice cultivation includes the following steps:

[0035] (1) Preparation of compound fertilizer raw materials: a. Add the above-mentioned parts by we...

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PUM

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Abstract

The invention relates to a slow release fertilizer for rice planting. The slow release fertilizer is characterized by being prepared from compound fertilizer raw material and coating material, whereinthe compound fertilizer raw material is prepared from the following raw materials in parts by weight: straw, urea, zinc sulfate, potassium sulfate, monoammonium phosphate, monopotassium phosphate, and calcium superphosphate; the coating material is prepared from the following raw materials in parts by weight: lignin, silicon dioxide, sodium alginate, a foaming agent and an emulsifying agent. Thepreparation method comprises the following steps of uniformly spraying a coating emulsion prepared by the coating material onto the compound fertilizer raw material, drying, and cooling, so as to obtain the slow release raw material. The slow release fertilizer has the beneficial effects that (1) the releasing speed of the fertilizer is reduced, the effective utilization rate of the fertilizer isimproved, the fertilizer applying frequency is reduced, and the injury to the environment and crops due to excessive fertilizer is reduced; (2) the cost of components is lower, the manufacturing costis lower, the preparation method is simple, the excellent effect on the rice growth is realized, and the slow release fertilizer is suitable for being popularized and applied.

Description

technical field [0001] The invention relates to the field of rice planting, in particular to a slow-release fertilizer for rice planting and a preparation method thereof. Background technique [0002] Rice planting mainly includes the following steps: soil preparation → seedling cultivation → transplanting seedlings → weeding and pest control → fertilization → irrigation and drainage → harvesting. Fertilization is mainly to supplement the elements necessary for rice growth, but if it is applied too often or in large quantities, it will have the opposite effect, and most of the fertilizer will be washed away with the rain, or the fertilizer itself is released too quickly, not enough time Let the rice absorb, resulting in the absorption of fertilizer and low utilization rate. [0003] Slow release fertilizers are also called slow available fertilizers or control release fertilizers. The nutrient-containing compounds in the fertilizer are released slowly in the soil or the nu...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 鲍峰俞立新
Owner 桐城市天天家庭农场有限公司
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