Chemical and biological combined soil remediation method of banana wasteland

Abstract

The invention relates to a chemical and biological combined soil remediation method of banana wasteland and belongs to an agricultural intensive production technology. Aiming at the waste soil in which the morbidity of banana soilborne wilt in the current year is larger than 30% and the morbidity of super-serious banana soilborne wilt in the next year is larger than 40%, the method provided by the invention comprises the following steps: treating the soil by utilizing ammonium bicarbonate and lime or stronger ammonia water; killing a certain amount of soil microorganisms; controlling the number of soil fusarium oxysporum (banana wilt pathogenic bacteria) in per g of the soil to be 10<4>; applying a banana specialized-type microorganism organic fertilizer (100kg / mu); regulating the soil humidity; leading the number of externally added beneficial microorganisms in per g of soil to respectively achieve 10<6>-10<8>; and forming an advantageous group in the soil. Through treating the soil by the method, a paddy field with the current-year morbidity less than 10% has the morbidity about 30% in the next year, thus the soil with the super-various banana soilborne wilt is effectively remedied, and is reclaimed for planting bananas.

Description

1. Technical field [0001] The invention relates to a combined soil chemical and biological restoration method for banana wasteland, which is used for the combination of soil chemistry and biology for super-severe banana soil-borne blight (banana wasteland), and belongs to the agricultural intensive production technology. 2. Background technology [0002] Continuous cropping soil-borne blight is the most difficult problem to solve in the production of all economic crops. In production, methods such as crop rotation, soil disinfection, and application of bio-fertilizers resistant to soil-borne diseases are often used to reduce economic losses caused by soil-borne blight. [0003] However, as far as banana planting is concerned, due to the need for typical tropical and subtropical climate conditions, it is difficult to solve it through crop rotation, because there are not many climate regions where bananas can be grown in my country. In 2005, the banana planting area in Hainan P...

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Problems solved by technology

[0005]On the other hand, incineration of rice, wheat, corn, rapeseed and other crop stalks, and large-scale breeding of livestock and poultry manure, etc. not only seriously pollute the environment, It also greatly wastes raw materials that can be used as organic fertilizers and bio-organic fertilizer products; a large number of nutrient resources (C, N, P, K, S and trace elements) are lost outside the soil-plant system, which obviously weakens my country's agricultural production. Sustainability

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