Selenium-enriched biofertilizer and preparation method thereof

A biological bacterial fertilizer and selenium-enriched technology, applied in the direction of organic fertilizers, can solve the problems of polluting fish and shrimp, and achieve the effects of reducing pests and diseases, improving quality, and enhancing vitality

Inactive Publication Date: 2013-02-27
XIAOJIAN TECH DALIAN
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AI Technical Summary

Problems solved by technology

At present, the selenium-enriched foods produced on the market mainly increase the selenium content in plants by spraying sodium selenite on plant leaves or fruits from the seedl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment （ 1

[0034] 17% rhizobia, 50% autogenous nitrogen-fixing bacteria, 25% combined nitrogen-fixing bacteria, and 8% selenium-containing microorganisms; the preparation ratio of the medium is: peptone 1.2%, yeast extract 0.3%, beef extract 10%, salt 0.05 %, bran 35%, corn flour 20%, sugar 3.0%, chaff 28%, grass charcoal powder 1.0%, calcium carbonate 1.0%. After mixing the selenium-containing bacteria solution and the culture medium, adjust the pH value to 8 with alkaline ammonia water, lime or sodium hydroxide, and then sterilize to make the bacteria fertilizer.

[0035] Use 20kg of the bacterial fertilizer of the present invention, add water and dilute and analyze 300 times, in the pumpkin growth period, spray pumpkin leaves and pumpkins, spray 2-3 times, each interval of 4-8 days, can improve the selenium content of pumpkins and be 0.085 mg / kg, to achieve a yield increase of 20kg per mu.

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Abstract

The invention provides a selenium-enriched biofertilizer and a preparation method of the selenium-enriched biofertilizer by complexing active bacteria and nano-selenium elements. According to the selenium-enriched biofertilizer, by means of chemical and physical mutagenesis and the like, the active bacteria and the nano-selenium elements are complexed through a reasonable coordination mode. A new strain contains the nano-selenium elements which have low toxicity and good biological activity, thereby the strain can be fully absorbed by human body, and the requirement of the human body for the selenium can be met.

Description

technical field [0001] The invention belongs to the field of ecological agriculture, in particular to a selenium-enriched biological bacterial fertilizer and a preparation method thereof. Background technique [0002] According to incomplete statistics, about 700 million people in two-thirds of my country are in a state of selenium deficiency. Therefore, using indirect methods to develop and produce natural selenium-rich foods, especially the development of natural organic selenium vegetables, has become the focus of my country's selenium-rich foods. At present, the selenium-enriched foods produced on the market mainly increase the selenium content in plants by spraying sodium selenite on plant leaves or fruits from the seedling stage to the mature stage, but this method has remaining Sodium selenite remains in the soil, which will flow into the river with rainwater and other problems such as polluting fish and shrimp. This project solves the above problems and provides a ...

Claims

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Application Information

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IPC IPC(8): C05F11/08
Inventor 王艳妹
Owner XIAOJIAN TECH DALIAN
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