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Foliar fertilizer, preparation method and method for reducing cadmium pollution of crops

A technology of inhibitors and crops, applied in the field of farmland heavy metal restoration, to achieve the effect of reducing heavy metal poisoning, reducing the difficulty of restoration, and improving the quality of agricultural products

Inactive Publication Date: 2018-05-18
北京本农科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Heavy metal cadmium has a strong migration ability in crops. Some conventional agronomic regulation and passivation can only be treated through roots, and some of them will inevitably be transported to plants through roots.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Dissolve 20 parts of ascorbic acid in deionized water, stir for 10min, take by weighing 10 parts of sodium selenate and dissolve in water, then add ascorbic acid solution in the sodium selenate solution, and keep stirring to obtain uniform and stable nano-selenium solution 1#, Stabilized by microwave in microwave oven. Weigh 30 parts of sodium silicate and dissolve in 100 parts of deionized water, add 2 parts of absolute ethanol and mix well, then stir for 30 minutes, then slowly drop in the mixture of 2 parts of absolute ethanol and 1 part of Tween 80, and then fully stir 2h, prepared inorganic silicon solution 2#. Take by weighing 8 parts of chitosan, 30 parts of water-soluble silicon dioxide, pour into 95 parts of deionized water, and stir continuously for 10 minutes to make solution 3#, add the obtained solution of 1#, 2#, and 3# into 150 parts Place in an Erlenmeyer flask in deionized water, place on a shaker at a speed of 150r / min, shake for 30min, take out the p...

Embodiment 2

[0046]Dissolve 15 parts of ascorbic acid in deionized water, stir for 10min, take by weighing 15 parts of sodium selenate and dissolve in water, then add the ascorbic acid solution in the sodium selenate solution, and keep stirring to obtain uniform and stable nano-selenium solution 1#, Stabilized by microwave in microwave oven. Weigh 20 parts of sodium silicate and dissolve in 100 parts of deionized water, add 2 parts of absolute ethanol, mix well and stir for 30 minutes, then slowly drop in the mixture of 2 parts of absolute ethanol and 1 part of Tween 80, and then fully stir 2h, prepared inorganic silicon solution 2#. Take by weighing 10 parts of chitosan, 35 parts of water-soluble silicon dioxide, pour into 90 parts of deionized water, and stir continuously for 10 minutes to make solution 3#, add the obtained solution of 1#, 2# and 3# to the Put 150 parts of deionized water in an Erlenmeyer flask, place on a shaker at a speed of 160r / min, shake for 30min, take out the pro...

Embodiment 3

[0051] Dissolve 15 parts of ascorbic acid in deionized water, stir for 10min, take by weighing 20 parts of sodium selenate and dissolve in water, then add the ascorbic acid solution in the sodium selenate solution, and keep stirring to obtain uniform and stable nano-selenium solution 1#, Stabilized by microwave in microwave oven. Weigh 20 parts of sodium silicate and dissolve in 100 parts of deionized water, add 2 parts of absolute ethanol, mix well and stir for 30 minutes, then slowly drop in the mixture of 2 parts of absolute ethanol and 1 part of Tween 80, and then fully stir 2h, prepared inorganic silicon solution 2#. Take by weighing 15 parts of chitosan, 40 parts of water-soluble silicon dioxide, pour into 90 parts of deionized water, and stir continuously for 10 minutes to make solution 3#, add 1#, 2#, 3# gained solution into 150 parts Place in an Erlenmeyer flask in deionized water, place on a shaker at a speed of 180r / min, shake for 30min, take out the product and le...

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PUM

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Abstract

The invention relates to the technical field of heavy metal remediation of farmland, in particular to a foliar fertilizer, a preparation method and a method for reducing cadmium pollution of crops andaims to reduce the content of heavy metal cadmium in edible parts of crops. The foliar fertilizer is prepared from the following raw materials: 5-10 parts of soluble selenium, 60-80 parts of solublesilicon, 5-10 parts of chitosan, 20-30 parts of ascorbic acid, 140-160 parts of deionized water and 2-5 parts of absolute ethanol. According to the foliar fertilizer, a new idea that the inhibitor issprayed to foliage of crops for inhibiting transfer of heavy metals from the crop section of a soil-plant system to edible parts so as to remedy heavy metal pollution of cultivated land is provided.

Description

technical field [0001] The invention relates to the technical field of farmland heavy metal restoration, in particular to a foliar resistance control agent, a preparation method and a method for reducing cadmium pollution of crops. Background technique [0002] As a heavy metal element, cadmium is highly toxic. The air and food polluted by cadmium are seriously harmful to the human body, and the metabolism in the human body is slow. Japan once experienced "itai disease" due to cadmium poisoning. Due to the development of the electrolytic zinc industry, the output of cadmium (Cd) and its environmental pollution followed; in recent years, there have been many cadmium pollution incidents. In particular, the recently exposed "cadmium rice" incident has aroused concerns from the government and the public. The overall soil environment in the country is not optimistic. The soil pollution in some areas is serious, the soil environmental quality of cultivated land is worrying, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01C21/00A01G7/06
CPCA01C21/00A01G7/06C05D9/00C05G3/00C05G5/20C05D9/02C05F11/10
Inventor 韩建均于松赵川
Owner 北京本农科技发展有限公司
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