Seed soaking agent and seed soaking method for reducing cadmium and arsenic content in rice grains

A technology of rice grain and seed soaking agent, applied in botany equipment and methods, biocide, animal repellent, etc., can solve the problems of difficulty in large-scale promotion, difficulty in meeting actual field production needs, large manpower and material resources, etc., and achieve The seed soaking method is simple, the ability to reduce transshipment, and the effect of good application prospects

Active Publication Date: 2021-06-15
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current heavy metal pollution in farmland is mostly compound pollution, and the technology for single heavy metal pollution is difficult to meet the needs of actual field production
At present, the commonly used measures to prevent and control heavy metal pollution in rice include water management and the application of passivation conditioners. However, these two methods will consume a lot of manpower and material resources, and it is difficult to promote them on a large scale. The most widely promoted is Screening for Low Accumulation Varieties

Method used

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  • Seed soaking agent and seed soaking method for reducing cadmium and arsenic content in rice grains
  • Seed soaking agent and seed soaking method for reducing cadmium and arsenic content in rice grains

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Embodiment

[0023] A kind of soaking method of reducing cadmium and arsenic content in the rice grain of the present embodiment comprises the following steps:

[0024] (1) Seed soaking agent preparation

[0025] In this embodiment, the active ingredients of the seed soaking agent are sodium selenite and sodium arsenite. Sodium selenite and sodium metasilicate nonahydrate are respectively added into water, dissolved and mixed uniformly to obtain a seed soaking agent. In order to reflect the effect of the seed soaking agents of different concentrations, two different proportions are designed in this embodiment:

[0026] Soaking agent Si1Se: containing 1mg / L sodium selenite and 1g / L sodium metasilicate nonahydrate

[0027] Soaking agent Si10Se: Contains 1mg / L sodium selenite and 10g / L sodium metasilicate nonahydrate.

[0028] (2) Select four early rice varieties mainly cultivated in Zhejiang Province, Zhongzao 39, Jinzao 47, Jinzao 09, and Yongxian 15, and apply Si10Se concentration to so...

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Abstract

The invention relates to a seed soaking agent and a seed soaking method for reducing the content of cadmium and arsenic in rice grains. The active ingredients contained in the seed soaking dosage are sodium selenite and sodium metasilicate. Tests have shown that the use of specific varieties of rice soaked in the present invention can effectively improve the heavy metal poisoning resistance of rice and increase stress resistance; at the same time, it can effectively reduce the absorption of arsenic by rice grains. The seed soaking agent has low cost, simple operation, and large-scale promotion and possibility properties and very good application prospects.

Description

technical field [0001] The invention belongs to the technical field of agricultural environmental protection. More specifically, the invention relates to a seed soaking agent and a seed soaking method for reducing the content of cadmium and arsenic in rice grains. Background technique [0002] Arsenic is a toxic metalloid that exists widely in nature. On the one hand, arsenic pollution will affect the quality and safety of agricultural products, and on the other hand, it will affect human health through the enrichment of the food chain, so it has attracted widespread attention. my country is a country with a large amount of arsenic mining, and the arsenic pollution caused by mining or smelting is relatively serious. Rice is the main food crop cultivated in southern my country, and the accumulation of arsenic in rice is further intensified due to the need for long-term flooding. How to reduce the arsenic content in rice grains has become an urgent problem. Cadmium is the mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/02A01N59/00A01P21/00A01C1/00
CPCA01C1/00A01N59/00A01N59/02
Inventor 梅宇超唐先进劳千峰梁永超高子翔郭彬谷建成易博张馨元彭苗
Owner ZHEJIANG UNIV
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