Growth promoting strain used for promoting banana growth and microbial organic fertilizer produced with same

Abstract

The invention relates to a growth promoting strain used for promoting banana growth and a microbial organic fertilizer produced with the same, belonging to the intensive agriculture production technology. A growth promoting strain NJAUYL-25 is isolated and is inoculated into a microbial decomposition mixture of thoroughly decomposed pig manure composts and rapeseed meal to undergo solid fermentation to prepare the microbial organic fertilizer, namely the microbial organic fertilizer with the function of promoting banana growth. The fertilizer contains more than 1*108cfu / g of growth promoting bacteria and has total nitrogen content of 4-5% (more than 90% of organic nitrogen), total nitrogen, phosphorus and potassium nutrient of 6-10% and organic content not less than 45%. The test results indicate that after the microbial organic fertilizer, compared with chemical fertilizers which are only applied, is applied to the continuous cropping soil of bananas, the fresh weights and heights of banana seedlings are respectively increased by 1.89-5.77 times and 45.6-122.0% 30-50 days after the banana seedlings are planted. Banana growth can be effectively promoted by applying the bio-organic fertilizer in successive years.

Description

1. Technical field [0001] The invention relates to a growth-promoting bacterial strain for promoting the growth of bananas and a microbial organic fertilizer thereof, belonging to the technical field of agricultural intensive production. 2. Background technology [0002] Banana is one of the important fruits in the world. It has extremely high economic value and occupies an important position in my country's national economic construction. In recent years, in the process of planting bananas, long-term and large amounts of chemical fertilizers have destroyed the soil environment in which bananas grow, resulting in a decrease in the effective nutrient content of the soil, a serious decline in soil biological activity, and a decrease in the types and quantities of beneficial microorganisms in the soil, resulting in successive reductions in banana production. Therefore, the development of new fertilizers to promote the growth of bananas is of great significance for the productio...

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Problems solved by technology

[0003] On the other hand, the incineration of crop stalks (rice, wheat, corn, etc.) in our country, and the disposal of livestock and poultry manure after large-scale breeding not only seriously pollute the environment, but also greatly waste the products that can be used as organic fertilizers and bio-organic fertilizers. raw material

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