Green selenium-rich sweet cassava cultivation method

A cultivation method and bread technology, which are applied in the field of crop cultivation, can solve the problems that the amount of selenium fertilizer cannot achieve the selenium-enriching effect, the selenium content of cassava cannot be guaranteed, and the selenium-enriching effect is not obvious, etc., so as to achieve rich nutritional value and health care value, improving the utilization rate of selenium fertilizer, and improving the effect of human health

Pending Publication Date: 2021-09-17
SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the particularity of selenium-rich soil in Guangxi, there are also some studies on the cultivation of selenium-enriched cassava. However, due to the unstable selenium content in the natural environment, the selenium content of cassava cannot be guaranteed, and the selenium-enriched effect cannot be achieved.
And if the amount of selenium fertilizer is too small, the effect of selenium enrichment cannot be achieved, and too much will easily cause changes in the mineral elements, amino acid content and other components in the plant, resulting in selenium poisoning, production reduction and even death
In order to achieve the effect of selenium enrichment, the conventional planting method of selenium-enriched cassava is root application of selenium-containing fertilizer, spraying of selenium-containing foliar fertilizer or a combination of the two methods, but the effect of selenium-enrichment is not obvious, and it is easy to cause selenium-enriched cassava. Pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of green selenium-enriched bread cassava cultivation method comprises the following steps:

[0034] (1) Land selection and land preparation: Select a plot with loose soil, deep soil layer, sufficient light, and convenient irrigation; when preparing the land, clean up the stones, weeds and crop straw on the ground, plow and rake the soil layer , rake evenly, rake crushed, the ground level;

[0035](2) Preparation of green manure: in mid-to-late October, after applying the base manure on the whole plot, sow the seeds of blue sweet potato with strong cold resistance and short growth period, the base manure is superphosphate, and the application rate is 15kg / mu, the seeding rate of the blue sweet potato seed is 3kg / mu, and the blue sweet potato growth period evenly sprays the selenium fertilizer solution, and the selenium fertilizer solution is made of sodium selenite, sodium selenate, potassium selenite according to weight ratio 4 : 1:1 is mixed with the aqueous...

Embodiment 2

[0042] A kind of green selenium-enriched bread cassava cultivation method comprises the following steps:

[0043] (1) Land selection and land preparation: Select a plot with loose soil, deep soil layer, sufficient light, and convenient irrigation; when preparing the land, clean up the stones, weeds and crop straw on the ground, plow and rake the soil layer , rake evenly, rake crushed, the ground level;

[0044] (2) Preparation of green manure: in mid-to-late October, after applying the base fertilizer on the whole plot, sow the seeds of blue sweet potato with strong cold resistance and short growth period, the base fertilizer is calcium superphosphate, and the application rate is 20kg / mu, the seeding rate of the blue sweet potato seed is 5kg / mu, and the blue sweet potato growth period evenly sprays the selenium fertilizer solution, and the selenium fertilizer solution is made of sodium selenite, sodium selenate, potassium selenite according to weight ratio 6 : 1:1 is mixed...

Embodiment 3

[0051] A kind of green selenium-enriched bread cassava cultivation method comprises the following steps:

[0052] (1) Land selection and land preparation: Select a plot with loose soil, deep soil layer, sufficient light, and convenient irrigation; when preparing the land, clean up the stones, weeds and crop straw on the ground, plow and rake the soil layer , rake evenly, rake crushed, the ground level;

[0053] (2) Preparation of green manure: in mid-to-late October, after applying the base manure on the whole plot, sow the seeds of blue sweet potato with strong cold resistance and short growth period, the base manure is superphosphate, and the application rate is 15kg / mu, the seeding rate of the blue sweet potato seed is 3kg / mu, and the blue sweet potato growth period evenly sprays the selenium fertilizer solution, and the selenium fertilizer solution is made of sodium selenite, sodium selenate, potassium selenite according to weight ratio 6 : 2:1 is mixed with the aqueou...

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Abstract

The invention discloses a green selenium-rich sweet cassava cultivation method, and belongs to the technical field of crop cultivation. The method comprises the following technical steps of land selection and preparation, green manure preparation, seedling sowing, field management, selenium fertilizer topdressing outside roots and harvesting. By means of the method, the problems that in the selenium-rich cassava cultivation process, the selenium enrichment effect is not obvious, the selenium content in selenium-rich cassava is low, and environment pollution is prone to being caused by the cultivation method are effectively solved. According to the method, the selenium content in the sweet cassava is effectively increased, the efficient and ecological selenium enrichment effect is achieved, and the method is ecological, environmentally friendly, safe, reliable, low in cost and suitable for large-scale application and popularization.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a green selenium-enriched bread cassava cultivation method. Background technique [0002] Cassava (Manihot esculenta Crantz) is a cassava crop in the Euphorbiaceae family. It is one of the three major tuber crops in the world and the top five crops after rice, sweet potato, sugar cane and corn. Cassava has considerable comprehensive economic benefits and a large market capacity. Good development prospect, its tuber root is rich in starch, can be used as food, also plays an important role in chemical industry, medicine, textile and other aspects, has the extensive and uniqueness of use. [0003] Bread cassava specifically refers to sweet cassava whose hydrocyanic acid content in fresh cassava roots is less than 5mg / 100g. It is gradually accepted and loved by people. As a high-quality potato grain, breaded cassava is tender and soft, glutinous and sweet, nove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/25A01G2/10A01C21/00A01G22/00C05D9/00C05G3/00C05G5/20
CPCA01G22/25A01G2/10A01C21/005A01G22/00C05D1/00C05G5/20C05B7/00C05G3/00C05D9/00C05B13/02C05C9/00
Inventor 杨海霞李恒锐梁振华兰秀陈会鲜黄珍玲张秀芬郭素云
Owner SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
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