Foliar fertilizer for reducing rice cadmium content

A foliar fertilizer and content technology, which is applied to fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of not promoting the absorption of beneficial trace elements, not reducing the cadmium content of crops, and poor separation effect, and enhancing disease resistance. , the effect of increasing yield and reducing cadmium content in rice

Inactive Publication Date: 2015-07-22
湘潭顺天农业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common foliar fertilizers on the market do not have the function of reducing the cadmium content of crops, or the effect of reducing cadmium is not good
There are still deficiencies in improving the ability of crops to resist diseases, and cannot promote the absorption of beneficial trace elements by crops, and there is still room for improvement
And the time of spraying is also important, and all do not involve in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, the present invention includes amino acid, organic selenium, strontium nitride (Sr3N2), zinc sulfate (ZnSO4), manganese sulfate, and potassium silicate, wherein the ratio of each component by weight (parts) is: amino acid 50, Organic selenium 0.6-1.0, strontium nitride (Sr3N2) 0.1-0.2, zinc sulfate (ZnSO4) 8-12, manganese sulfate 0.7-0.9, potassium silicate 2-5, and the foliage fertilizer is applied before heading.

[0017] The organic selenium can be formed by combining selenium with amino acid through biotransformation, or chelating selenium with amino acid. Strontium Sr is an essential trace element for the human body. It has the functions of preventing arteriosclerosis and thrombosis. It can reduce the cadmium Cd content in rice and make rice more nutritious. The selenium Se content is 0.1mg / kg~0.3mg / kg, the effect is good, the human body does not have long-term storage selenium selenium organs, the selenium needed by the body should constantly get a suff...

Embodiment 2

[0021] Embodiment 2, the concentration of strontium nitride (Sr3N2) in the present invention is less than or equal to 1 mg / L. The content of strontium Sr element should not be too much, and should be controlled within a certain range, otherwise it will cause adverse effects if excessive intake by the human body. All the other are with embodiment 1.

Embodiment 3

[0022] Embodiment 3, the zinc sulfate (ZnSO4) concentration of the present invention is 0.6-1.5mg / L. The effect is better when the concentration is 0.8 mg / L or 1.2 mg / L, which can supplement zinc to plants and improve plant disease resistance. Experimental research shows that when the concentration of zinc is between 20 and 80 μmol, the cadmium content in grains decreases with a slight increase in zinc content, and when the concentration of zinc is equal to or greater than the concentration of cadmium, the cadmium content of plants is obvious reduce. All the other are the same as above-mentioned embodiment.

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Abstract

The invention relates to a foliar fertilizer for reducing the rice cadmium content, and belongs to a foliar fertilizer for rice seedlings. A purpose of the present invention is mainly to solve the technical problems of cadmium content reduction resistance, not substantial yield increase, not strong plant disease resistance effect, and the like of the foliar fertilizer in the prior art. The technical scheme is characterized in that the foliar fertilizer comprises, by weight, 50 parts of amino acids, 0.6-1.0 part of organic selenium, 0.1-0.2 part of strontium nitride (Sr3N2), 8-12 parts of zinc sulfate (ZnSO4), 0.7-0.9 part of manganese sulfate, and 2-5 parts of potassium silicate, and the foliar fertilizer is applied before head sprouting. The foliar fertilizer of the present invention is mainly used in the field of agricultural production of rice.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a foliar fertilizer for reducing the cadmium content of rice. Background technique [0002] Foliar fertilizer is a type of fertilizer that is sprayed on the surface of crop leaves according to the nutrients that crops lack, and works through the absorption of leaves. The leaves of plants have upper and lower layers of epidermis, which are composed of epidermal cells. There are cutin and waxy layers on the outside of the upper epidermal cells, which can protect the mesophyll cells under the epidermal tissue from performing photosynthesis, respiration and other functions, and are not affected by changes in external adverse conditions; There are also many tiny pores on the surface of the blade, which perform the function of gas exchange. Studies have shown that the cuticle is composed of a long carbon chain fatty acid polymer with hydroxyl and carboxyl groups. The molecular gap of this polymer and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05G3/00
Inventor 邓述东邓钰静
Owner 湘潭顺天农业科技开发有限公司
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