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Method for cultivating selenium-rich sweet potatoes

A cultivation method and technology of selenium-enriched sweet potato, applied in the agricultural field, can solve the problems of low yield per mu, low yield, high labor intensity and the like, and achieve the effects of improving germination rate, promoting germination and increasing yield

Inactive Publication Date: 2016-10-12
蒋丽红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, sweet potato cultivation still adopts the traditional cultivation method, which has low technological content, high labor intensity, and low yield, and a large amount of sweet potato is needed for planting; because the seed section has a cut, it is easy to rot after planting, and the germination rate cannot be guaranteed. The yield per mu is low; at the same time, there are problems such as unreasonable fertilizer application, high fertilizer loss rate, and low utilization rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A cultivation method for selenium-enriched sweet potatoes, including site selection, seed selection, sowing, field management, and pest control. Field management includes intertillage weeding and topdressing, rational irrigation and soil cultivation; topdressing includes topdressing selenium-rich organic fertilizers and selenium-rich Apply 2-4kg of organic fertilizer and 1-2kg of foliar fertilizer to each sweet potato;

[0038]Among them: the prevention and control of diseases and insect pests is to spray 45 kg of water with 100 grams of thiophanate-methyl or 100 grams of mancozeb in time per mu when blight and brown spot disease appear in sweet potatoes;

[0039] The site selection is to choose a field with sufficient sunlight, fertile soil, good drainage and loose soil for planting, and adjust the pH value of the soil to 6.7-7.0 by adding peat soil;

[0040] Seed selection is to select oval, disease-free sweet potatoes as seed potatoes, cut each seed potato into 3-5 t...

Embodiment 2

[0046] Adopt the cultivation method difference of embodiment 1 to be:

[0047] Apply 2kg of organic fertilizer and 1kg of foliar fertilizer to each sweet potato;

[0048] The organic fertilizer includes in parts by weight: 10 parts of rice washing water, 3 parts of selenium ore powder, 1 part of selenium-enriched yeast, 1 part of dried chicken manure, 1 part of chestnut shell, 1 part of garlic straw, 10 parts of shrimp and crab scraps, 1 part of bamboo vinegar, 1 part of selenate polysaccharide, 1 part of cellulolytic bacteria and 1 part of EM bacteria;

[0049] The foliar fertilizer consists of the following raw materials in parts by weight: 3 parts of Jerusalem artichoke juice, 3 parts of ε-polylysine, 3 parts of biochemical potassium fulvic acid, 1 part of sodium nitrophenolate, 1 part of orange juice and 1 part of chitosan share.

[0050] Wherein, the organic fertilizer is prepared by the following method:

[0051] (1): In parts by weight, respectively crush chestnut sh...

Embodiment 3

[0056] Adopt the cultivation method difference of embodiment 1 to be:

[0057] Apply 4kg of organic fertilizer and 2kg of foliar fertilizer to each sweet potato;

[0058] Among them, the organic fertilizer includes in parts by weight: 20 parts of rice washing water, 10 parts of selenium ore powder, 5 parts of selenium-enriched yeast, 8 parts of dried chicken manure, 8 parts of chestnut shells, 8 parts of garlic straw, and 18 parts of shrimp and crab waste. 8 parts of bamboo vinegar, 8 parts of selenate polysaccharide, 8 parts of cellulolytic bacteria and 8 parts of EM bacteria;

[0059] Wherein, the foliar fertilizer is composed of the following raw materials in parts by weight: 10 parts of Jerusalem artichoke juice, 10 parts of ε-polylysine, 10 parts of biochemical potassium fulvic acid, 10 parts of sodium nitrophenolate, 1-10 parts of orange juice and Chitosan 10 parts.

[0060] Wherein, the organic fertilizer is prepared by the following method:

[0061] (1): In parts by...

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Abstract

The invention belongs to the technical field of agriculture, and particular discloses a method for cultivating selenium-rich sweet potatoes. The method comprises the steps of land selection, seed selection, sowing, field management and pest control. According to field management, intertillage weeding and topdressing, reasonable irrigation and ridging are included; according to topdressing, selenium-rich organic fertilizer and selenium-rich leaf fertilizer are dressed, and 2 kg to 4 kg of the organic fertilizer and 1 kg to 2 kg of the leaf fertilizer are applied to each sweet potato. The organic fertilizer and the leaf fertilizer are applied together, growth of the sweet potatoes can be promoted, and the planting period can be shortened. During intertillage, the tubers of the sweet potatoes begin to grow, tuber growing is a guarantee of yield increasing, and therefore organic fertilizer application is critical during intertillage. According to the method, the organic fertilizer and the leaf fertilizer which can promote tuber growth and add selenium into the tubers are specially designed for the sweet potatoes, therefore, it is guaranteed that the sweet potatoes can absorb and utilize sufficient selenium in the whole growth process, the yield of the sweet potatoes is increased, and selenium in the sweet potatoes can be increased.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for cultivating selenium-enriched sweet potatoes. Background technique [0002] Sweet potato (Solanum tuberosum L.) is an annual herbaceous plant belonging to the family Convolvulaceae. Sweet potato roots are rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and the sugar content is 1.5%-5%. Sweet potato root has active ingredients, which have anti-cancer, heart protection, emphysema prevention, diabetes, weight loss, beauty and other effects, and has the reputation of "longevity food". In addition, in addition to being edible, the tubers can also be used to make sugar, wine, alcohol, starch, pectin, etc. The starch produced can be used to make vermicelli and vermicelli, and can be used to make delicious dishes. [0003] Selenium is an essential trace element for the human body. Selenium participates in the synthes...

Claims

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Application Information

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IPC IPC(8): A01G1/00C05G3/04C05G3/00C05G3/80
CPCA01G22/00C05C11/00C05D9/02C05G3/80C05F11/00C05F11/02C05G3/00C05F1/005C05F3/00C05F5/002C05F5/004C05F11/08
Inventor 蒋丽红
Owner 蒋丽红
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