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High-yield, green and environment-friendly cultivation method for sweet potatoes with reduced chromium and enriched selenium, zinc and iron

A technology of green environmental protection and cultivation method, which is applied in the direction of fertilization method, root crop cultivation, seed and rhizome treatment, etc., can solve the problems of excessive chromium content in sweet potato seeds, low content of selenium, zinc and iron in sweet potato, and high content of heavy metal chromium, etc. Achieve the effects of high yield, enhanced antibacterial property, and comprehensive resistance

Inactive Publication Date: 2018-07-20
ANHUI HUIDA AGRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the yield of planted sweet potatoes is low due to low temperature, pests, etc., and the content of selenium, zinc and iron in the cultivated sweet potatoes is low. In addition, the content of heavy metal chromium in the cultivation soil is high, and the sweet potatoes will absorb the chromium in the soil during the growth stage. The heavy metal chromium causes the chromium content of the cultivated sweet potato species to exceed the standard, which is very harmful to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of chromium-reducing, selenium-increasing, zinc-iron-iron high-yield green environment-friendly sweet potato cultivation method of the present embodiment comprises the following steps:

[0034] Step 1. Seed selection: select varieties with high pigmentation, good disease resistance and high drying rate, remove impurities and dust, spread them out thinly, and expose them to the sun for 12 hours. During the exposure process, turn them every 1 hour to make The dryness of the seeds is consistent, and then the sun-dried seeds are placed at a temperature of 44°C for 4 hours, and then placed at a temperature of 3°C for 6 hours, and then placed in a dry, ventilated, and cool place for 10 hours above spare;

[0035] Step 2, preparation of selenium-enriched zinc and iron nutrient: 4 parts of zinc source, 5 parts of selenium source, 3 parts of iron source, 2 parts of bio-organic fertilizer, 1 part of fertilizer binder, 1 part of acid regulator, carbonic acid Add 1 part of ...

Embodiment 2

[0049] A kind of chromium-reducing, selenium-increasing, zinc-iron-iron high-yield green environment-friendly sweet potato cultivation method of the present embodiment comprises the following steps:

[0050] Step 1. Seed selection: Select varieties with high pigmentation, good disease resistance and high drying rate, remove impurities and dust, spread them out thinly, and expose them to the sun for 24 hours. During the exposure process, turn them every 2 hours to make them The dryness of the seeds is consistent, and then the sun-dried seeds are placed at a temperature of 48°C for 8 hours, and then placed at a temperature of 5°C for 8 hours, and then placed in a dry, ventilated, and cool place for 12 hours above spare;

[0051] Step 2, preparation of selenium-enriched zinc and iron nutrient: according to parts by weight, 6 parts of zinc source, 7 parts of selenium source, 5 parts of iron source, 4 parts of biological organic fertilizer, 2 parts of fertilizer binder, 3 parts of ...

Embodiment 3

[0065] A kind of chromium-reducing, selenium-increasing, zinc-iron-iron high-yield green environment-friendly sweet potato cultivation method of the present embodiment comprises the following steps:

[0066] Step 1. Seed selection: Select varieties with high pigmentation, good disease resistance and high drying rate, remove impurities and dust, spread them out thinly, and expose them to the sun for 18 hours, turning them every 1.5 hours during the exposure process, so that The dryness of the seeds is consistent, and then the sun-dried seeds are placed at a temperature of 46°C for 6 hours, and then placed at a temperature of 4°C for 7 hours, and then placed in a dry, ventilated, and cool place for 11 hours above spare;

[0067] Step 2, preparation of selenium-enriched zinc and iron nutrient: 5 parts of zinc source, 6 parts of selenium source, 4 parts of iron source, 3 parts of bio-organic fertilizer, 1.5 parts of fertilizer binder, 2 parts of acid regulator, carbonic acid Add ...

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Abstract

The invention discloses a high-yield, green and environment-friendly cultivation method for sweet potatoes with reduced chromium and enriched selenium, zinc and iron. The method comprises the following steps: step 1, selecting seeds; step 2, preparing a selenium, zinc and iron enriched nutrition agent; step 3, breeding seedlings; 4, carrying out management in a seedling stage; 5, carrying out soilpreparation; step 6, planting sweet potato seedlings; step 7, carrying out field management; and step 8, carrying out harvesting. With the high-yield, green and environment-friendly cultivation method for the sweet potatoes with reduced chromium and enriched selenium, zinc and iron, the sweet potatoes have high yield and good economic benefits; a base fertilizer of a selenium, zinc and iron enriched compound fertilizer is added during the seedling breeding period of the sweet potatoes, and the fertilizer is uniformly dispersed in the soil, so that potato seedlings are ensured to fully absorbthe enriched selenium, zinc and iron fertilizer; simultaneously, heavy metals in the soil are separated out through the complexation of a surfactant, so that the content of the heavy metal chromium inthe soil is effectively reduced, and the cultivation method is green and harmless, and has a relatively high value and a good application prospect.

Description

technical field [0001] The invention relates to the technical field of sweet potato cultivation, in particular to a high-yield, green and environment-friendly sweet potato cultivation method for reducing chromium, increasing selenium, zinc and iron. Background technique [0002] Sweet potato, also known as sweet potato, sweet potato, yam, etc., is a common perennial dicotyledonous plant, herb, with slender tendrils and stems crawling on the ground. Root tubers produce lactic acid through anaerobic respiration. The skin is whitish or red. The flesh is mostly yellowish white, but also purple. In addition to being edible, it can also be used for sugar, wine and alcohol production. Sweet potatoes are very important ingredients in northern China. Cutting sweet potatoes into strips, drying them in the sun, and making them into dried sweet potatoes is a very delicious food. Roasted sweet potatoes are also popular now, which is also very delicious. [0003] Selenium, zinc, and iron...

Claims

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Application Information

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IPC IPC(8): A01G22/25A01C21/00A01C1/00
CPCA01C1/00A01C21/005
Inventor 王亚男夏承东王育鹏方大伟
Owner ANHUI HUIDA AGRO
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