Chelated iron compound fertilizer, preparation method thereof and slow-release soil conditioner

A compound fertilizer, chelated iron technology, applied in the directions of organic fertilizers, liquid fertilizers, fertilization devices, etc., can solve problems such as single nutrition of iron fertilizers, achieve a simple preparation method, an environmentally friendly preparation method, and alleviate/prevent/correct iron deficiency in plants. Effects of Sexual Yellow Leaf Phenomenon

Inactive Publication Date: 2021-04-13
陈建伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of preparation method of chelated iron compound fertilizer, to solve the single problem of existing iron fertilizer nutrition;

Method used

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  • Chelated iron compound fertilizer, preparation method thereof and slow-release soil conditioner
  • Chelated iron compound fertilizer, preparation method thereof and slow-release soil conditioner
  • Chelated iron compound fertilizer, preparation method thereof and slow-release soil conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 A kind of preparation method of chelated iron compound fertilizer and slow release type soil conditioner

[0024] The preparation method of the preparation method of the chelated iron compound fertilizer comprises the following steps carried out in sequence:

[0025] 1) Take siderite with a weight content of 40% of ferrous carbonate, pulverize it, and sieve through an 80-mesh sieve to obtain siderite powder.

[0026] 2) Add 10kg of siderite powder and 30kg of citric acid to 200kg of water, heat to 80°C for chelation reaction, only a small amount of carbon dioxide is released during the reaction, and stop the reaction until no carbon dioxide is released; The liquid separator separates to obtain the liquid-phase chelated iron compound fertilizer (marked as M1) and the solid-phase slow-release soil conditioner (marked as N1). Among them, the main chemical reaction formulas involved are as follows:

[0027]

[0028] 3Ti(CO 3 ) 2 +4C 6 h 8 o 7 → Ti 3 ...

Embodiment 2～6

[0032] The preparation method of embodiment 2~6 chelated iron compound fertilizer and slow release type soil conditioner

[0033] Embodiments 2 to 6 are respectively a preparation method of a chelated iron compound fertilizer and a preparation method of a soil conditioner, and their steps are basically the same as in Embodiment 1, the difference is only in the amount of raw materials and various process parameters, the specific details See Table 1:

[0034] Table 1 List of raw material consumption and process parameters

[0035]

[0036] The content of the other parts of Examples 2-6 is the same as that of Example 1.

Embodiment 7

[0037] Determination of Mineral Elements in Embodiment 7 Chelated Iron Compound Fertilizer

[0038] The mineral elements (iron, titanium, magnesium and manganese, etc.) in the chelated iron compound fertilizers M1~M6 were detected respectively, and the specific detection results are shown in the table below

[0039] Table 2 List of determination results of mineral elements in chelated iron compound fertilizers M1-M5

[0040]

[0041]

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Abstract

The invention belongs to the technical field of fertilizers, and discloses a chelated iron compound fertilizer, a preparation method thereof and a slow-release soil conditioner, wherein siderite, citric acid and water are subjected to chelation reaction and solid-liquid separation to obtain a liquid phase which is the chelated iron compound fertilizer and a solid phase which is the slow-release soil conditioner. According to the invention, a large amount of siderite existing in nature is used as a main raw material, and the liquid chelated iron compound fertilizer with ferrous citrate as a main component is prepared through a simple chelation reaction, is suitable for being sprayed on plant leaf surfaces, and can effectively relieve/prevent/correct the iron-deficiency yellow leaf phenomenon of plants and achieve the purpose of iron supplementation; the chelated iron compound fertilizer also contains trace elements such as titanium citrate, magnesium citrate and manganese citrate which are beneficial to plant growth, so that the problem of single nutrition of the existing iron fertilizer is solved; the slow-release soil conditioner is suitable for being scattered into continuous cropping land, and soil hardening and nutrient-deficient physiological diseases caused by continuous cropping are prevented.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and relates to a fertilizer, in particular to a chelated iron compound fertilizer, a preparation method thereof and a slow-release soil improver. Background technique [0002] As an essential nutrient element in plant growth, iron plays a vital role in the process of plant growth. Lack of iron will lead to chlorosis and yellowing of plant leaves, and even brown spots on the leaves, which will seriously affect plant growth. Therefore, ensuring the effective supply of iron is an effective means to prevent / correct yellow leaves / brown spots on leaves of plants. And because plants can only absorb ferrous iron, but not ferric iron, the iron fertilizers sold in the market are mainly ferrous sulfate, EDTA-Fe and amino acid iron. These iron fertilizers are all prepared by chemical and inorganic synthesis methods, and the obtained iron fertilizers have single nutrition, which is not conducive to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/00C05G3/40C05G3/80C05G5/20
CPCC05F11/00C05G3/40C05G3/80C05G5/20
Inventor 陈建伟陈航达
Owner 陈建伟
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