Method for planting selenium-enriched crops

A crop, selenium-enriched technology, applied in the field of chemical agriculture, can solve the harsh, low selenium content of natural food and other problems

Active Publication Date: 2019-01-22
唐谟堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, 72% of China's land belongs to selenium-deficient areas, and natural foods such as grains have low selenium content, while selenium-enriched agricultural products can only be pl

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] A method for planting selenium-rich crops. The test soil with a dry weight of 3.25, 3.5, 3.5 kg and a selenium content of 0.2 mg / kg is divided into 1 # (Green), 2 # (Pink), 3 # (Dark red) In the three test pots, selenium was supplemented to the soil in the form of calcium selenite sol. The specific method includes the following steps:

[0037] First prepare a selenite solution containing Se 200mg / L, take 8.75 and 17.5mL of this solution, and neutralize them with 10 and 20mL of saturated lime water respectively to make two weakly alkaline calcium selenite sols, and spray them evenly. To 2 # , 3 # In the test basin. 1 # ,2 # And 3 # The amount of selenium supplemented in the test pot soil was 0.0, 0.5 and 1.0 mg / kg respectively. Add appropriate amount of water to the soil, mix and twist it into mud several times, and then plant the seedlings after putting 50-100mm deep water. During the growth period of the grass seedlings, water is retained throughout the whole process, bu...

Embodiment 2

[0041] A method for planting selenium-enriched crops in selenium-poor soil of the present invention. The implementation site is a paddy field in a hill in Banmajiang Village, Yingchunting Sub-district Office, Wugang City, which is divided into two areas: a selenium supplementation area and a control area. 7% (379.55m 2 ), the control area is 5 minutes 2 centimeters (346.26m 2 ), the specific method includes the following steps:

[0042] 1) Preparation of calcium selenite suspension: first 141.34g SeO 2 Dissolve in 2L of water, add 107g of CaO to 18L of water, then slowly add the selenite solution to the calcium hydroxide suspension under constant stirring, and react for 30min at natural temperature to form a light red white calcium selenite suspension liquid;

[0043] 2) 379.55m to be supplemented with selenium 2 The field is divided into 42 blocks, each about 9m 2 ,

[0044] 3) In the case of anhydrous cover soil, spray the calcium selenite suspension with a sprayer in proportion t...

Embodiment 3

[0050] A method for planting selenium-enriched crops in selenium-poor soil of the present invention. The test soil is the paddy soil of Tongzi Mountain in Qigang Village, Yantian Township, Wugang City, containing 0.2mg / kg of selenium. The test soil is 3.815 and 5.65kg respectively. Of the 2 pottery bowls, the number is 1 # ,2 # , To supplement selenium to the soil in the form of calcium selenite sol, the specific method includes the following steps:

[0051] First prepare a selenite solution containing Se200mg / L, take 9.54mL of this selenite solution and 10.5mL of saturated lime water and neutralize it at room temperature for 20 minutes to make a calcium selenite sol and then add it to 1 # Try the soil in the pot. 1 # ,2 # The amount of selenium supplemented in the test pot soil was 0.5 and 0.0 mg / kg respectively. Add appropriate amount of water and 2g of potassium dihydrogen phosphate to each pot soil, mix well and sow. During the growth of the seedlings, water them regularly to...

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Abstract

The invention discloses a method for planting selenium-enriched crops. The method comprises the following steps 1, a seleninic acid solution is mixed with an alkaline earth metal hydroxide solution orsuspension to be subjected to a reaction, or alkaline earth metal selenite powder and water are mixed to generate an alkaline earth metal selenite suspension or sol; 2, the alkaline earth metal selenite suspension or sol is uniformly sprayed to the surface of a plough covered with no water, then, ploughing and raking are performed on the plough, and then the selenium-enriched crops are planted. The method has the advantages that water insoluble selenite is adopted for performing disposable selenium supplementing on soil short of selenium, selenium can be stored into soil for a long time, andthe selenium-enriched crops can be planted for 300 years or longer according to a conventional tillage method; plants and excrement of people, livestock and poultry eating selenium-enriched agricultural products can be returned to the plough, and the selenium-enriched agricultural products can be permanently produced under the condition that selenium circulation is formed.

Description

Technical field [0001] The invention belongs to the field of chemical agriculture, and particularly relates to a method for planting selenium-rich crops. Background technique [0002] The content of selenium in human tissues is one part per ten million, but it determines the existence of life and plays a huge role in human health. The lack of selenium in the human body will directly lead to a decline in immunity, and more than forty diseases that threaten human health and life may occur. People need to replenish selenium throughout their lives and must take in sufficient amounts of selenium every day. However, 72% of China's land is in selenium-deficient areas, and natural foods such as grains have low selenium content, while selenium-enriched agricultural products can only be grown in selenium-enriched soil. The conditions for producing selenium-enriched rice (rice) are more stringent, and it is necessary before heading. Spray a very dilute selenium solution on the leaf surfac...

Claims

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Application Information

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IPC IPC(8): A01G22/00A01C21/00C05G3/00
CPCA01C21/005A01G22/00C05D9/02C05G5/23
Inventor 唐谟堂唐朝波周桂梅唐绪平
Owner 唐谟堂
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