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Complete-element chelating highly effective trace fertilizer and method for manufacturing same

A chelating and high-efficiency technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as inability to disperse well, sodium ion absorption, soil salinization, etc., to reduce EC value, strengthen effect, prevent soil salt the effect of

Active Publication Date: 2011-05-04
上海永通生态工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter what kind of chelating agent is used to prepare the existing chelated micro-fertilizers, most of them use sodium hydroxide for pH adjustment, which will lead to the presence of sodium ions in the micro-fertilizers, which cannot be absorbed by crops as nutrients. Long-term application can lead to soil salinization
At the same time, because this kind of chelated micro-fertilizer contains insoluble components, and because the antagonism between trace elements is easy to form, agglomeration can be formed during fertilization, which cannot be dispersed well, so it cannot be effectively absorbed by crops.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the present invention, the weight distribution of required raw materials and additive components is as follows for the preparation of full-element chelated high-efficiency micro-fertilizer:

[0031] h 4 EDTA 8.3kg CuCO 3 ·Cu(OH) 2 1.73kg

[0032] EDTA-Fe(DTPA-Fe) 3.3kg MnCO 3 0.84kg

[0033] ZnO 0.19kg CoCO 3 0.01kg

[0034] Na 2 B 4 o 7 4H 2 O 0.24kg dispersant (not afraid of rain TM ) 0.05kg

[0035] Na 2 MoO 4 2H 2 O 0.025kg

[0036] The preparation method of above-mentioned formula is as follows:

[0037] Weigh 8.3kg EDTA tetra-acid, dissolve it in 30kg aqueous solution, heat to dissolve it completely; add 1.73kg CuCO 3 ·Cu(OH) 2 , 0.84kg MnCO 3 , 0.19kg ZnO and 0.01kg CoCO 3 , heated at 80-100°C, and stirred at this temperature for 3 hours; after the above solution became transparent, add an appropriate amount of MgO to the solution to adjust the pH value to 4.5, and th...

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Abstract

The present invention discloses one series of all-component chelated high efficiency trace element fertilizers containing trace elements essential for crops and its production process. The trace element fertilizers are produced through recipe design, chelation reaction of chelating agent and trace elements, addition of magnesia for pH value regulation and addition of dispersant. The trace elementfertilizers are high quality chemical fertilizers with raised nutrient contents, lowered conductivity, capacity of promoting the absorption of crop, obvious yield increasing effect and other advantages.

Description

technical field [0001] The invention relates to the manufacture of novel agricultural fertilizers used in agriculture and forestry, in particular to a method for preparing compound fertilizers containing multiple chelated trace elements. Background technique [0002] Chelated micro-fertilizer refers to an agrochemical fertilizer formed by the chelation reaction of organic chelating agents and metal trace element ions, with a variety of chelated trace elements as the main component. The role of trace elements in plants and animals is very specific, and they are indispensable and irreplaceable. When the supply is insufficient, plants often show specific symptoms of deficiency, and crop yields and quality decline. In severe cases, they may be absolutely Produce. Therefore, the compounds of the deficient trace elements are supplemented as fertilizers (micro-fertilizers), which is beneficial to the improvement of yield, which has been confirmed by scientific experiments and prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05D9/02
Inventor 石称华
Owner 上海永通生态工程股份有限公司
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