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Nano-selenium cabbage nutritional agent and method for producing selenium-enriched cabbages by utilizing nutritional agent

A production method, nano-selenium technology, applied in the direction of application, organic fertilizer, fertilizer mixture, etc., can solve the problems of narrow safety range, high toxicity, unfavorable absorption, etc., so as to facilitate human body absorption, increase conversion rate, and good quantitative controllability Effect

Inactive Publication Date: 2010-06-16
SUZHOU SETEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the production method of selenium-enriched agricultural products in my country is mainly the method of foliar spraying sodium selenite, for example, Chinese patents CN1568655A, CN1445199A and CN1435081A, etc., this method is simple and easy, and the cost is low, but the toxicity is relatively large, and the safety range Narrow, and the selenium in the product basically exists in the form of inorganic selenium, which is not conducive to human body absorption, so this method has been eliminated abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Experimental method

[0020] 1.1 Preparation of nano-selenium cabbage nutrient: After mixing human and livestock manure, straw residues and weeds, heap and retting into organic fertilizer, and prepare nano-selenium plant nutrient (manufactured by Suzhou Selenium Technology Co., Ltd.), nitrogen bacteria and potassium bacteria According to the analysis of the physical and chemical properties of the soil, the organic matter content in the organic fertilizer is ≥ 20%, and the concentration of biological bacteria in the microbial fertilizer is ≥ 200 million / kg. The nano-selenium plant nutrient, organic fertilizer and microbial fertilizer are evenly mixed according to the weight ratio of 5:3:0.4 to prepare the nano-selenium cabbage nutrient. The final concentration of total selenium in the nano-selenium cabbage nutrient is 5000mg / kg.

[0021] 1.2 Cabbage varieties: Chinese cabbage

[0022] 1.3 Cultivation method: The experiment was carried out in a large cabbage plantati...

Embodiment 2

[0030] 1. Experimental method

[0031] Except that human and animal excrement, straw residues and weeds are replaced with livestock excrement and gasket materials when composting organic fertilizer, the others are the same as in Example 1.

[0032] 2. Experimental results

[0033] The selenium content of cabbage in the control group did not change significantly (P>0.05), while the selenium content of cabbage in the nutrient group increased significantly gradually, and the results of the last three tests were significantly improved compared with the control group (P<0.05). When the selenium content reaches a steady state and is close to the target value, that is, the selenium content is stable at 38.4±3.8 μg / kg, which is about 7.7 times that of the control group. It is because the absorption of selenium by cabbage has reached a balanced state. Forty days after fertilization, the selenium content of cabbage remained stable and reached the standard of selenium enrichment, and t...

Embodiment 3

[0035] 1. Experimental method

[0036] Except that human and livestock excrement, straw residues and weeds are replaced with poultry manure such as chicken, duck, goose, etc. when composting organic fertilizer, the others are the same as in Example 1.

[0037] 2. Experimental results

[0038] The selenium content of cabbage in the control group did not change significantly (P>0.05), while the selenium content of cabbage in the nutrient group increased significantly gradually, and the results of the last three tests were significantly improved compared with the control group (P<0.05). When the selenium content reaches a steady state and is close to the target value, that is, the selenium content is stable at 39.1±3.5 μg / kg, which is about 7.8 times that of the control group. It is because the absorption of selenium by cabbage has reached a balanced state. Forty days after fertilization, the selenium content of cabbage remained stable and reached the standard of selenium enric...

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Abstract

The invention provides a nano-selenium cabbage nutritional agent which is prepared by evenly mixing a nano-selenium plant nutritional agent, an organic fertilizer and a microbial fertilizer according to the weight ratio of 1 to 9: 2 to 4: 0.3 to 0.5. The invention also provides a method for producing the selenium-enriched cabbages by utilizing the nano-selenium cabbage nutritional agent, comprising the following steps of: applying the nano-selenium cabbage nutritional agent according to the application amount of 5 to 25kg / acre in a furrow application way in the cabbage planting process so as to enable the nutritional agent to leave in 5 to 10cm of a plough layer; dynamically monitoring the selenium enriching effect of the cabbages; and culturing the cabbages for more than 50 days and then harvesting the selenium-enriched cabbages with the selenium content of 10 to 100Mug / kg. The cabbages produced by the production method have good security, and the selenium in the cabbages is easy to absorb and utilize.

Description

technical field [0001] The invention relates to a nano-selenium cabbage nutrient and a method for producing organic-rich cabbage by using the nano-selenium cabbage nutrient. Background technique [0002] Chinese cabbage is native to northern my country and is commonly known as Chinese cabbage. Cabbage is an important vegetable indispensable in people's life. It is delicious and nutritious. It is known as the "king of dishes" and is loved by the masses. It is eaten as tender bulbs, rosette leaves or flower stems. Its cultivation area and consumption rank first among all kinds of vegetables in China. [0003] Selenium, the symbol of the element is Se. Scientists at home and abroad have conducted a lot of research on selenium and human health. The results show that although the content of selenium in human tissues is small, it has an indispensable role in human health just like iron, zinc, iodine and other trace elements. The role of neglect. Experts believe that selenium h...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05D9/02C05F11/08
Inventor 刘寿峰尹雪斌毕德刘颖
Owner SUZHOU SETEK
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