Method for planting high-calcium rich-selenium purple-sweet-potatoes

A cultivation method and purple sweet potato technology are applied in the cultivation field of selenium-enriched and high-calcium purple sweet potato, can solve the problems of selenium pollution, unstable selenium content, difficult vegetation absorption, etc. Effect

Active Publication Date: 2017-11-17
广西壮族自治区农业科学院经济作物研究所
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Problems solved by technology

[0003] The purple sweet potato flesh is purple in color, rich in anthocyanins, and has high nutritional value and health care effects on the human body. Moreover, because purple sweet potatoes are sweeter and taste better than yellow sweet potatoes, the demand has greatly increased. At present, Due to the particularity of the selenium-enriched soil in Guangxi, there are also some studies on the cultivation of selenium-enriched sweet potatoes. However, due to the unstable selenium content in the natural environment, the selenium content of purple sweet potatoes cannot be guaranteed, and it cannot play the role of selenium-enriched and high-calcium. Effect, of course, in order to achieve the effect of selenium-enriched and high-calcium planting, conventional planting methods mainly add inorganic selenium solutions such as sodium selenite. Not obvious, but also cause selenium pollution

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  • Method for planting high-calcium rich-selenium purple-sweet-potatoes

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Embodiment 1

[0030] A cultivation method of selenium-enriched and high-calcium purple sweet potato, said method comprising the steps of:

[0031] (1) Soil improvement: when the land is plowed, add cassava fermented selenium-enriched high calcium organic fertilizer to obtain improved soil while plowing, and the addition amount of the cassava fermented selenium-enriched high calcium organic fertilizer is: 2000g / m 2 ;

[0032] (2) Soil preparation: the improved soil in step (1) is leveled, base fertilizer is applied, and a layer of soil with a thickness of 5 cm is covered and ridges are piled up to obtain pre-planted land. The ridge width of the ridge is 30 cm, and two adjacent ridges The distance between them is 10cm; the added amount of base fertilizer is: 1000g / m 2 ;

[0033] (3) sowing: clip the upper stem section of the band terminal bud as the seedling, and the length of every section stem is 40cm, and then the seedling base is put into the rooting liquid and soaked (wherein, the root...

Embodiment 2

[0058] A cultivation method of selenium-enriched and high-calcium purple sweet potato, said method comprising the steps of:

[0059] (1) Soil improvement: when the land is plowed, add cassava fermented selenium-enriched high-calcium organic fertilizer to obtain improved soil while plowing, and the addition amount of the cassava fermented selenium-enriched high-calcium organic fertilizer is: 3000g / m 2 ;

[0060] (2) Soil preparation: the improved soil in step (1) is leveled, base fertilizer is applied, and a layer of soil with a thickness of 10cm is covered and then ridges are piled up to obtain pre-planted land. The ridge width of the ridge is 40cm, and two adjacent ridges The distance between them is 20cm; the added amount of base fertilizer is: 2000g / m 2 ;

[0061] (3) sowing: clip the upper stem section of the band terminal bud as the seedling, the length of every section of stem is 50cm, then the seedling base is put into the rooting liquid and soaked (wherein, the rooti...

Embodiment 3

[0086] A cultivation method of selenium-enriched and high-calcium purple sweet potato, said method comprising the steps of:

[0087] (1) Soil improvement: when the land is plowed, add cassava fermented selenium-enriched high-calcium organic fertilizer while plowing to obtain improved soil, and the addition amount of the cassava fermented selenium-enriched high-calcium organic fertilizer is: 2500g / m 2 ;

[0088] (2) Soil preparation: the improved soil in step (1) is leveled, base fertilizer is applied, and a layer of soil with a thickness of 8cm is covered and ridges are piled up to obtain pre-planted land. The ridge width of the ridge is 35cm, and two adjacent ridges The distance between them is 15cm; the added amount of base fertilizer is: 1500g / m 2 ;

[0089] (3) sowing: cut the upper stem section of the band terminal bud as seedling, the length of every section stem is 45cm, then put the seedling base into the rooting liquid and soak (wherein, the rooting liquid is made o...

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Abstract

The invention relates to the technical field of purple sweet potato planting, in particular to a method for planting high-calcium rich-selenium purple-sweet-potatoes. According to the method, a cassava-fermented rich-selenium high-calcium organic-fertilizer is used to improve planting soil, so that the soil is rich in selenium, high in calcium and loose, and meets the needs of purple sweet potato growing; a chelated selenium liquid fertilizer added with amino acid is applied to promote the sweet potatoes to absorb organic selenium, so that the selenium content of the sweet potatoes is improved effectively; moreover, effective components can be extracted from natural plants and used for killing pests, so that a made insecticide can be decomposed by the environment easily and not cause pesticide residues, pollution and other harm; the effective components of extractives have a broad-spectrum bactericidal effect, especially for trapping and killing weevils, the effect is remarkable, and therefore the insecticide can effectively ensure that the purple sweet potatoes are not harmed by the pests.

Description

【Technical field】 [0001] The invention relates to the technical field of planting purple sweet potatoes, in particular to a cultivation method of purple sweet potatoes rich in selenium and high in calcium. 【Background technique】 [0002] Sweet potato is the fourth largest food crop in China, and it is also an important industrial raw material, feed, new energy and health crop. China is the country with the largest sweet potato planting area and the highest fresh potato production in the world, with a sweet potato planting area of ​​about 4.6 million hectares 2 , The total output of fresh potatoes is about 100 million tons, accounting for 75% of the world's total output. At present, many provinces and regions in my country regard sweet potato as the dominant crop in the adjustment of agricultural industrial structure, and sweet potato is gradually changing from a traditional food crop to a profitable economic crop. [0003] The purple sweet potato flesh is purple in color, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00A01G13/00C05G1/00C05G3/04C05F15/00A01N65/42A01N65/28A01P17/00C05G3/80
CPCA01C21/005A01G13/00A01G22/00A01N65/00A01N65/28A01N65/42C05B1/02C05D3/02C05D9/02C05F3/00C05G3/80C05F1/005C05F11/00C05F5/002C05D1/02A01N2300/00C05D9/00
Inventor 唐秀桦韦民政李韦柳熊军闫海锋吴延勇
Owner 广西壮族自治区农业科学院经济作物研究所
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