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Fermentation of corn steep liquor and B. subtilis to produce microbial fertilizer
Release time:
2024-06-12
Corn Steep Liquor is rich in soluble protein, amino acids, vitamins, growth factors, various minerals and other nutrients, and its high ammonia nitrogen content is conducive to the increase of biomass, and is widely used in high-density fermentation of functional microorganisms. It has great application potential and broad development prospect in agricultural field.
What is microbial fertilizer?
Microbial fertilizer is also known as bacterial fertilizer, popularly speaking is bacteria + fertilizer, which is a bio-active microbial fertilizer that promotes the growth of crops with microbial life activities and their products, and promotes the absorption of nutrients by plants through microbial life activities, so that plants can obtain specific fertilizer effects. Reasonable application of bacterial manure can not only improve the soil, but also help to improve the resistance of crops to biotic and abiotic stresses, improve the yield and quality of crops, and provide more possibilities for the development of organic agriculture.
Why use Corn Steep Liquor and B. subtilis to make microbial fertilizer?
Corn Steep Liquor is rich in soluble protein, amino acids, vitamins, growth factors, various minerals and other nutrients, and its high ammonia nitrogen content is conducive to the increase of biomass, and is widely used in high-density fermentation of functional microorganisms. It has great application potential and broad development prospect in agricultural field.
B. subtilis has many advantages, such as salt tolerance, low temperature and high temperature resistance, secretion of high-quality protease, etc. It has also been proved to promote plant growth, It is a beneficial bacterium widely used in microbial fertilizers. The protease produced by B. subtilis can decompose macro-molecular proteins in corn steep liquor into amino acids, increase the content of free amino acids in fertilizer, and facilitate the absorption and utilization of crops.
The number of viable bacteria is the key index to evaluate the quality of microbial inoculants. In the study, the number of viable bacteria of B. subtilis produced in corn steep liquor medium was significantly higher than that in peptone medium. corn steep liquor is a high-quality and inexpensive nitrogen source, the price is much lower than peptone, yeast extract, etc., can reduce the cost of B. subtilis culture medium, and then reduce the production cost of microbial fertilizer;
Precautions for making bacterial fertilizer by corn steep liquor fermentation
1: The PH range suitable for the growth of B. subtilis is neutral and acidic. During fermentation, the consumption of amino acid substrate causes the PH to rise, so a neutralizer needs to be added after the PH exceeds 7 to adjust.
2: In the process of corn steep liquor fermentation, the amount of inoculation, the interaction of corn steep liquor concentration and pH have significant effects on the results, and small-scale experiments should be conducted to determine the most suitable fermentation parameters before large-scale application.
3: The fermentation process should pay attention to the content of soluble oxygen, the decrease of oxygen content will limit the high-density fermentation of B. subtilis;
4: Using corn steep liquor as medium to ferment B. subtilis to produce microbial fertilizer; The number of viable bacteria and biomass of B. subtilis were significantly increased by adding glucose during the process.
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What are the benefits of applying amino acid powder(NPK 14-0-0) to plants?
Amino acid powder can provide organic nitrogen, and plants can directly absorb and utilize the amino acids in the amino acid powder through roots or leaves, making it easier to produce protein and saving the energy required to produce amino acids.
Corn steep liquor powder: Cost-effective Feed Additive
Corn steep liquor powder can be used as a feed protein source or as food for beneficial microorganisms in feed fermentation (fermentation medium), promoting the growth of beneficial microorganisms, thereby improving the nutritional utilization of feed, reducing feed costs, and improving animal growth performance; it is widely used in feed additives for ruminants, chickens, aquatic feed, etc.
Corn Steep Liquor Powder: High-quality fermented feed ingredients
the use of feed produced by adding CSL powder fermentation can reduce and improve feed digestibility, reduce morbidity, increase daily weight gain, improve feed digestibility, and reduce feed-to-meat ratio, which has extremely high economic value.
Corn steep liquor powder: high-quality nutritional supplement for ruminants
corn steep solids and molasses can safely replace the concentrated feed in the diet, providing cows with abundant energy and protein; And it will not affect the feed intake of cattle. CSL powder contain 43% crude protein, 35% amino acids, 7% organic nitrogen, 21% lactic acid, and 31% carbohydrates. It is commonly used in the feed industry as a protein source for cattle, sheep and other animals.
Corn steep liquor powder: Cheap and High-Quality Bio-stimulant
CSL can be used to improve plant growth and productivity, as well as all negative effects of abiotic stress; Shandong JUCI is a corn steep powder supplier and manufacturer. Corn steep liquor powder is 100% water-soluble, containing NPK 7-7-7, 35% amino acids, 43% protein, reducing sugars, vitamins, minerals, and other biologically active nutrients for soil and crops. Among them, various nutrients such as amino acids and vitamins are part of plant metabolic pathways. The application of corn steep powder can have direct or indirect effects on the physiological processes and metabolic pathways of plant adaptation to biotic and abiotic stress, and can serve as an inducer, directly/indirectly inducing and stimulating effects.
Corn steep liquor powder: High quality organic fertilizer raw materials
the application of corn steep solids can also increase the pH value of the soil, increase effective soil nutrients, thereby accelerating the absorption and utilization of nutrients by crops, promoting crop growth, and early flowering.
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