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Chelated calcium fertilizer and preparation method thereof

A technology for chelating calcium and fertilizers, applied in fertilizer mixtures, nitrate fertilizers, nitrogen fertilizers, etc., can solve the problems of low utilization rate of calcium elements, reduce fertilizer efficiency, etc., to improve bioavailability, improve quality and yield, and achieve good stability sexual effect

Inactive Publication Date: 2019-10-15
张彦杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a kind of chelated calcium fertilizer and its preparation method, in order to solve the low utilization rate of calciu

Method used

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  • Chelated calcium fertilizer and preparation method thereof
  • Chelated calcium fertilizer and preparation method thereof

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Effect test

Embodiment 1

[0022] The preparation method of the chelated calcium fertilizer of the present embodiment may further comprise the steps:

[0023] 1) Calcium nitrate is prepared into a saturated aqueous solution at a temperature of 20°C;

[0024] 2) Add glutamic acid and stir well until no solid remains.

[0025] Wherein, the weight ratio of calcium nitrate and glutamic acid is 0.8:0.5.

Embodiment 2

[0027] The preparation method of the chelated calcium fertilizer of the present embodiment may further comprise the steps:

[0028] 1) Calcium nitrate is prepared into a saturated aqueous solution at a temperature of 18°C;

[0029] 2) Add glutamic acid and stir well until no solid remains.

[0030] Wherein, the weight ratio of calcium nitrate and glutamic acid is 0.9:0.5.

Embodiment 3

[0032] The preparation method of the chelated calcium fertilizer of the present embodiment may further comprise the steps:

[0033] 1) Calcium nitrate is prepared into a saturated aqueous solution at a temperature of 22°C;

[0034] 2) Add glutamic acid and stir well until no solid remains.

[0035] Wherein, the weight ratio of calcium nitrate and glutamic acid is 1:0.5.

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Abstract

The embodiment of the invention discloses a chelated calcium fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The chelated calcium fertilizer comprises calcium nitrate and glutamic acid. In the chelated calcium fertilizer in the embodiment of the invention, the weight content of calcium glutamate is 36.5-42.8%, the rate of chelation is 62.8-68.5%, theglutamic acid has the preferable chelating property, and the calcium content in the chelated calcium fertilizer is high. The calcium glutamate is obtained by performing ion exchange on the glutamic acid and calcium nitrate, and after an accelerated stability test, the reduction rate of the calcium glutamate content is less than 3% within 90 days, which indicates that the chelated calcium fertilizer in the embodiment of the invention has excellent stability. After being applied to crops, the chelated calcium fertilizer can completely enter a biological system to be absorbed and utilized, the bioavailability of the calcium is improved, and the quality and the yield of the crops are further improved. Therefore, the problem in the prior art that the calcium utilization rate is low because a calcium salt easily forms precipitates with phosphorus, sulfur and other nutrient elements and reduce the fertilizer efficiency of the fertilizer is solved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of fertilizers, in particular to a chelated calcium fertilizer and a preparation method thereof. Background technique [0002] Calcium is one of the four essential nutrients (N, P, K, Ca) for crop growth and development, and plays an inestimable role in crop growth. Studies have shown that calcium is the main component of the cell wall and intercellular layer of the crop body, which makes the organs and individuals of the plant have certain mechanical strength. In addition, calcium is a component and activator of some enzymes in crops, and has certain effects on the metabolism of nitrogen and carbohydrates. At the same time, calcium has the function of eliminating certain organic acids in crops, reducing the toxicity of organic acids to crops, and is also conducive to promoting the absorption of potassium ions by crops. [0003] In the absence of calcium, the growth of crops is hi...

Claims

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Application Information

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IPC IPC(8): C05G1/00
CPCC05C5/04C05C11/00
Inventor 张彦杰
Owner 张彦杰
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