EDDHA chelated organic micro-fertilizer and preparation method thereof

An organic and micro-fertilizer technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of low energy consumption, poor crop pertinence, low effectiveness, etc., achieve low dosage and solve various crop deficiencies Symptoms, long-lasting effects

Inactive Publication Date: 2016-02-10
SICHUAN TONGFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of EDDHA chelated organic micro-fertilizer with low energy consumption, good stability and good fertilizer efficiency, aiming to solve the problem that inorganic fertilizers are not highly targeted to soil and crops; mutual competition and antagonism between inorganic ions effect; or the problem that although the content of trace elements in the fertilizer is high, the effectiveness is very low

Method used

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  • EDDHA chelated organic micro-fertilizer and preparation method thereof
  • EDDHA chelated organic micro-fertilizer and preparation method thereof
  • EDDHA chelated organic micro-fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the EDDHA chelated ternary compound micro-fertilizer of iron, zinc, manganese

[0027] 1. Synthesis of EDDHA

[0028]

[0029] Put the above chemical reagents in a reaction kettle, heat to 65-75°C, and stir. Add ethylenediamine dropwise under stirring, then slowly add 50% glyoxylic acid dropwise, and keep it for 1~2h.

[0030] 2. Preparation of trace element ion solution

[0031] The molar ratio of ingredients is

[0032] Zinc sulfate 0.33

[0033] Manganese sulfate 0.33

[0034] Ferrous sulfate 0.33

[0035] At room temperature, the above solid powders were dissolved in 100ml of water respectively, and stirred until completely dissolved.

[0036] 3. Chelate preparation

[0037] The ingredients are calculated by mole percentage as:

[0038]

[0039] Put the synthesized EDDHA in a reaction kettle, heat to 65-75°C, and stir. under stirring

[0040] Slowly add ZnSO 4 , MnSO 4 , FeSO 4 Solution, keep stirring for 1h to obtain iron, manganese...

example 2

[0041] Example 2: EDDHA chelated binary compound micro-fertilizer of iron and zinc

[0042] 1. Synthesis of EDDHA

[0043]

[0044] Put the above chemical reagents in a reaction kettle, heat to 65-75°C, and stir. Add ethylenediamine dropwise under stirring, then slowly add 50% glyoxylic acid dropwise, and keep it for 1~2h.

[0045] 2. Preparation of trace element ion solution

[0046] The molar ratio of ingredients is

[0047] Zinc sulfate 0.5

[0048] Ferrous sulfate 0.5

[0049] At room temperature, the above solid powders were respectively dissolved in 150ml of water, and stirred until completely dissolved.

[0050] 3. Chelate preparation

[0051] The ingredients are calculated by mole percentage as:

[0052] EDDHA60

[0053] ZnSO 4 20

[0054] FeSO 4 20

[0055] Put the synthesized EDDHA in a reaction kettle, heat to 65-75°C, and stir. Slowly add ZnSO separately under stirring 4 , FeSO 4 solution, keep stirring for 1h to obtain iron and zinc EDDHA chelate...

example 3

[0056] Example 3: EDDHA chelated binary compound micro-fertilizer of iron and manganese

[0057] 1. Synthesis of EDDHA

[0058]

[0059]

[0060]Put the above chemical reagents in a reaction kettle, heat to 65-75°C, and stir. Ethylenediamine was added dropwise with stirring, and then 50% glyoxylic acid was slowly added dropwise for ~2h.

[0061] 2. Preparation of trace element ion solution

[0062] The molar ratio of ingredients is

[0063] Manganese sulfate 0.5

[0064] Ferrous sulfate 0.5

[0065] At room temperature, the above solid powders were respectively dissolved in 150ml of water, and stirred until completely dissolved.

[0066] 3. Chelate preparation

[0067] The ingredients are calculated by mole percentage as:

[0068] EDDHA60

[0069] MnSO 4 20

[0070] FeSO 4 20

[0071] Put the synthesized EDDHA in a reaction kettle, heat to 65-75°C, and stir. Slowly add MnSO separately under stirring 4 , FeSO 4 solution, kept stirring for 1h. A chelate of ...

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PUM

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Abstract

The invention provides an EDDHA chelated organic micro-fertilizer and a preparation method thereof. The method comprises the following steps: mixing and heating 150-200g of phenol, 200-500ml of water and 56-112g of potassium hydroxide to 65-75 DEG C; sequentially dropwise adding 50-80ml of ethidene diamine and 200-250ml of 50% glyoxylic acid in a stirring state, and lastingly heating and stirring for 1-2 hours after dropwise adding is ended, so as to obtain a synthetic EDDHA solution; adding microelements to water in a form of a soluble salt in a room-temperature condition, so as to obtain 0.3-0.5mol/L of microelement ionic solution; heating the obtained 400-700ml of EDDHA solution to 65-75 DEG C, adding 100ml of microelement ionic solution in the stirring state, further stirring for 1-2 hours after dropwise adding is ended, and supplementing 200ml of water until the volume reaches 1L, so as to obtain the EDDHA chelated organic micro-fertilizer in a liquid state or a solid state. The EDDHA chelated organic micro-fertilizer provided by the invention is a compound with high stability containing a plurality of microelements, has unique ultrahigh permeability and solubility in water, is not easy to run off, simple in preparation method and applicable to industrial production, and is easily absorbed by plants.

Description

technical field [0001] The invention belongs to the field of organic fertilizers, in particular to an EDDHA chelated organic micro-fertilizer and a preparation method thereof. Background technique [0002] Trace elements refer to a chemical element with very low content in nature, such as Zn, Mn, B, Fe, Cu, Mo, Cl, Ni. Some trace elements are necessary for the normal growth and life of plants and animals. Plants tend to show specific deficiency symptoms when supplies are low. [0003] Zinc is an enzyme component that promotes many biological reactions, can promote protein metabolism, promote the synthesis of auxin in the body, and is related to the synthesis of chlorophyll in photosynthesis. In addition, zinc can also enhance the resistance of plants to adverse environments. When the plant is deficient in zinc, the growth of the plant will be inhibited, showing the symptoms of chlorosis between the veins of the leaves. [0004] Most of the iron in plants is located in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05D9/02
Inventor 龙章富王金梅刘慧美陈琴陈城韩瑜
Owner SICHUAN TONGFENG TECH
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