CN101361434B - Cultivation technique capable of increasing corn selenium content - Google Patents

Abstract

The invention relates to a cultivation method for increasing the selenium content in the corn. The method is characterized in that each 1000mL water is added with 1.0 to 2.5mg sodium selenite, and a sodium selenite finishing agent of 1.0 to 2.5:1000 is prepared; the heart of the corn is filled with the solution at Big Trumpet Period, which is carried out after the field dew evaporates; and average amount used for each corn is 10mL.

Description

A kind of cultivation method that improves corn selenium content

Technical field

The invention belongs to the functional food culture technique.

Background technology

Lack the selenium problem in order to solve human body, the existing way of China directly adds inorganic selenium in the additive mode usually in food, or sprays selenium or execute selenium to crop on vegetables, crop blade face in soil.There is following problem in these methods:

1. in food, directly add the inorganic selenium health risk;

2. spraying method can directly be eaten the inorganic selenium that remains in fruit, dish leaf and melon and fruit surface;

3. the conversion of inorganic selenium and availability are low, are unfavorable for absorption of human body;

With fertilization mode to soil spraying selenium or foliage-spray, consumption is big, cost is high;

5. the field sprays has certain pollution to environment.

Summary of the invention

The purpose of this invention is to provide a kind of increasing the selenium processing method and producing the high corn of selenium content in the maize culture process.

Principle of the present invention is: with the milpa of live body as bio-reactor, during plant strain growth, irritate the heart with sodium selenite aqueous solution, physiological action by plant corpus, the organic selenium of inorganic selenium or chemosynthesis is changed into naturally occurring organic form in the plant corpus, make that the content of selenium increases substantially in the corn kernel, the rich selenium food of vegetalitas---the high selenium corn that form safety, effectively, easily is absorbed by the body and utilizes.

The technical characterictic of content of the present invention is as follows:

At first to increase the selenium inorganic agent be sodium selenite aqueous solution in preparation.Formula concentration is water: sodium selenite=1000mL: 1.0～2.5mg.Irritate the heart in the corn typhon mouth phase with this solution, average every strain consumption 10mL carries out after the evaporation of field dew.Obtain high high selenium corn of selenium content and the high selenium feed of cauline leaf during results.

Technique effect of the present invention is as follows:

1. the seed selenium content increases substantially, the highest increasing more than 150%.Selenium content is the highest in the cauline leaf increases more than 120%.Its content increases with the raising of handling agent concentration.

2. the high selenium corn kernel of Huo Deing, organic selenium content accounts for more than 93% of total selenium amount.The organic/inorganic ratio is identical with the corn of ordinary production, does not promptly have food-safety problem;

3. the corn stem leaf of by-product object height Se content is a functional fodder of producing high selenium meat, high-selenium eggs or high-selenium milk, for human body is mended the food approach that selenium provides the meat eggs.

4. the method cost of irritating the heart is low, Plant Transformation rate height, non-environmental-pollution;

5. technology is simple, processing ease, is convenient to promote.

Embodiment one

The preparation of reagent: every 1000mL water adds sodium selenite 1mg, is mixed with 1: 1000 sodium selenite aqueous solution.

Using method: in the typhon mouth phase of corn, irritate the heart, average every strain 10mL with sodium selenite solution.After the evaporation of field dew, carry out.

The technology application effect: the seed selenium content has improved 70%; The cauline leaf selenium content has improved 56%.

Embodiment two

The preparation of reagent: every 1000mL water adds sodium selenite 1.5mg, is mixed with 1.5: 1000 sodium selenite aqueous solution.

Using method:, irritate the plant heart, average every strain 10mL with sodium selenite solution in sweet corn typhon mouth vegetative period.After the evaporation of field dew, carry out.

The technology application effect: the seed selenium content has improved 100%; The cauline leaf selenium content has improved 83%.

Embodiment three

The preparation of reagent: every 1000mL water adds sodium selenite 2.0mg, is mixed with 2.0: 1000 sodium selenite aqueous solution.

Using method:, irritate the plant heart, average every strain 10mL with sodium selenite solution in waxy corn typhon mouth vegetative period.After the evaporation of field dew, carry out.

The technology application effect: the seed selenium content has improved 140%; The cauline leaf selenium content has improved 110%.

Embodiment four

The preparation of reagent: every 1000mL water adds sodium selenite 2.5mg, is mixed with 2.5: 1000 sodium selenite aqueous solution.

Using method:, irritate the plant heart, average every strain 10mL with sodium selenite solution in common corn typhon mouth vegetative period.After the evaporation of field dew, carry out.

The technology application effect: the seed selenium content has improved 150%; The cauline leaf selenium content has improved 120%.

Claims (1)

1. a cultivation method that improves corn selenium content is characterized in that: in the typhon mouth phase milpa is irritated the heart with sodium selenite aqueous solution; The sodium selenite aqueous solution prescription is: every 1000mL water adds sodium selenite 1.0～2.5mg; The average every strain amount of application 10mL of corn; After the evaporation of field dew, carry out.