Cultivation method of selenium-rich rice

A cultivation method and selenium-enriching technology, which are applied in rice cultivation, fertilization methods, botanical equipment and methods, etc., can solve the problems of low utilization rate of organic selenium form transformation, large residual inorganic selenium, waste of selenium element, etc., and achieve stable The effect of enriching selenium source, improving absorption and utilization rate, and increasing yield

Inactive Publication Date: 2017-03-01
湖南养正人生态农业综合开发有限公司
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AI Technical Summary

Problems solved by technology

The existing selenium-enriched rice planting technology has a low conversion utilization rate of organic selenium, which will inevitably cause waste and pollution of selenium, which is very easy to cause poisonous effects on rice. The residual inorganic selenium is large and has certain toxicity. intake to achieve quantitative and safe selenium supplementation for the human body

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] A method for cultivating selenium-rich rice includes the following steps:

[0024] 1) Select rice seeds with full grains, plant them in the sun for 1 day, rinse with water, soak the seeds with 2% tebuconazole for 10 hours, then dry naturally, break the skin of the seeds, add selenium-enriched nutrient solution, and mix well. Incubate at a temperature of 25-35°C for 20-24 hours to promote rice sprouts; the selenium-enriched nutrient solution is mixed with sodium selenite, potassium selenate, and calcium nitrate in a mass ratio of 1.5:1:5.5, and is prepared by adding water An aqueous solution with a concentration of 0.4%;

[0025] 2) After the seeds have sprouted, the steps of sowing, raising seedlings, transplanting and transplanting seedlings, top dressing are carried out in sequence, and the top dressing step is carried out twice in the tillering stage and booting stage, and top dressing with selenium-enriched foliar fertilizer; The fertilizer includes the following compon...

Embodiment 2

[0029] A method for cultivating selenium-rich rice includes the following steps:

[0030] 1) Select rice seeds with full grains, and plant them in the sun for 1 day, rinse with water, soak the seeds with 2% tebuconazole for 12 hours, then dry naturally, break the skin of the seeds, add selenium-enriched nutrient solution, and mix well. Incubate at a temperature of 25-35°C for 20-24 hours to promote the emergence of rice sprouts; the selenium-enriched nutrient solution is mixed with sodium selenite, potassium selenate, and calcium nitrate in a mass ratio of 2:1:5, and is prepared by adding water 0.7% aqueous solution;

[0031] 2) After the seeds have sprouted, the steps of sowing, raising seedlings, transplanting and transplanting seedlings, top dressing are carried out in sequence, and the top dressing step is carried out twice in the tillering stage and booting stage, and top dressing with selenium-enriched foliar fertilizer; The fertilizer includes the following components by we...

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Abstract

The invention discloses a cultivation method of selenium-rich rice. The method includes the steps of soaking seeds in a selenium-rich nutrient solution, conducting topdressing with selenium-enrich fertilizer at the tillering stage and the booting stage, cultivating a selenium-rich provenance and the like. According to the method, selenium supplementing is conducted in the seed soaking stage and the topdressing stage, and thus absorption of rice on selenium is improved; meanwhile, in the seed soaking stage, selenite, selenate and alkaline matter are prepared into an aqueous solution, water-soluble selenium is more suitable for being absorbed and utilized by plants in an alkaline microenvironment, and thus the absorption and utilization rate of rice on inorganic selenium is increased; in the topdressing stage, the foliar fertilizer containing a selenium source is applied, an appropriate quantity of selenium-source catalyst is added at the same time, a stable and effective selenium source can be supplied to rice to promote absorption and accumulation by rice, selenium in an inorganic form can be effectively transformed into selenium in an organic form, and the risk that excessive selenium poisons the growing environment of rice can be avoided.

Description

Technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for cultivating selenium-rich rice. Background technique [0002] Selenium is one of the essential trace elements for the human body. Insufficient or excessive intake can cause diseases. It was discovered in my country in the 1970s that Keshan disease and Kashin-Beck disease are related to selenium deficiency. With the continuous deepening of selenium research, people have realized that many diseases such as cancer, cardiovascular and cerebrovascular diseases, diabetes, human immunity, cadmium poisoning, and AIDS are all involved. Related to selenium deficiency, selenium has anti-oxidation, scavenging free radicals in the body, anti-aging, strengthening myocardial function, enhancing immune function and defense function, and enhancing reproduction ability. Therefore, selenium has attracted more and more attention. The human body consumes selenium mainly through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01C21/00C05G3/00C05G1/00C05D9/02A01G22/22
CPCA01C21/00C05C5/04C05C11/00C05D9/02C05G3/00C05G5/20C05D9/00C05F9/04C05F11/02C05F11/08C05D1/00
Inventor 宁桃珍
Owner 湖南养正人生态农业综合开发有限公司
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