Production method of selenium-enriched rice

Abstract

The invention discloses a selenium-rich rice production method, which comprises the following steps: variety selection, rice fertilization, selenium fertilizer spraying on leaf surfaces, and rice processing, and specifically comprises the following steps: variety selection: taking a long-grain high-quality japonica rice variety with fragrance and taste value of 80-90 points as a main material; rice fertilization: applying 25-45 kg / mu of a formula fertilizer, 5 kg / mu of an organic fertilizer, 5-8 kg / mu of tillering fertilizer urea, and 2-6 kg / mu of ammonium sulfate as a rice base fertilizer, 2-3 kg / mu of spike urea, and 2-4 kg / mu of a spike potash fertilizer; selenium fertilizer spraying on leaf surfaces: the used selenium fertilizer comprising the following components: more than or equal to 500.0 ppm of selenium, more than or equal to 20.0 g / L of organic matters, more than or equal to 1.0 g / L of amino acid N; rice processing and other steps. The method improves the selenium enrichment of the rice, and is suitable for black soil, meadow soil, albic soil and other types of soil with the selenium content lower than 0.2 mg / kg in the northeast region.

Description

technical field [0001] The invention relates to the field of planting technology, in particular to a production method of selenium-enriched rice. Background technique [0002] Selenium has anti-cancer and anti-cancer effects. Selenium deficiency in the human body can cause various diseases such as cardiovascular and cerebrovascular diseases. Selenium mainly comes from food, and selenium deficiency in food is the main cause of selenium deficiency in human body. Two-thirds of my country's regions from east to west are in selenium-deficient areas. Insufficient selenium content in the soil causes selenium deficiency in plants, and finally causes selenium deficiency in humans due to low selenium content in agricultural products. Although the selenium content in some soils can reach the level of selenium-enrichment or sufficient selenium, the ability to absorb only by plant roots is limited, which will also lead to insufficient selenium content in agricultural products. With the...

AI Technical Summary

Problems solved by technology

Generally speaking, selenium fertilizer applied to the soil and foliar sprayed selenium fertilizer can achieve the purpose of producing selenium-enriched rice, but the selenium fertilizer applied to the soil has a large amount of selenium fertilizer, high cost, weak root absorption capacity, and mineral selenium will bring heavy metals. And cause secondary pollution of soil and other disadvantages

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