Low-temperature phosphate solubilization Sinorhizobium fredii and inoculant thereof

Abstract

The invention relates to low-temperature phosphate solubilization Sinorhizobium fredii and inoculant thereof. The strain name is ATHC-2, the classification name is Sinorhizobium sp., the preservation unit is the China General Microbiological Culture Collection Center, the preservation number is CGMCC No. 10651, the preservation date is March 20, 2015, and the preservation address is No. 3, NO. 1 Courtyard, Beichen West Road, Chaoyang District, Beijing. The bacterial strain ATHC-2 disclosed by the invention can resist the influence on the growth of the bacterial strain ATHC-2 by low temperature, and has high phosphate solubilization activity. Low-temperature-resistant rhizobium inoculant is used for alleviating influence on soybean nodulation and nitrogen fixation in agricultural production, improve soil fertility, reduce the use amount of fertilizer and improve the yield and the quality of crops including soybean and the like.

Description

Technical field [0001] The invention belongs to the field of planting industry and fertilizers, and relates to a low-temperature phosphate-soluble Sinorhizobium and its bacterial agent. Background technique [0002] my country's agricultural production has long adopted a high-input and high-output development model, which has led to a serious dependence on chemical fertilizers in agricultural production. The extensive use of chemical fertilizers not only increases the cost of agricultural production, but also tends to cause soil compaction, resulting in reduced crop yields. A large amount of unused nitrogen, phosphorus, potassium and other nutrients enter the ecological environment of groundwater and rivers with rainfall, leading to eutrophication of river water bodies, ecological imbalance and environmental pollution, and threatening the sustainable development of agriculture. [0003] Biological nitrogen fixation has the effect of increasing crop yields and fertilizing the soil ...

AI Technical Summary

Problems solved by technology

Extensive use of chemical fertilizers not only increases the cost of agricultural production, but also tends to cause soil compaction, resulting in reduced crop yields

A large amount of unused nitrogen, phosphorus, potassium and other nutrients enter the ecological environment such as groundwater and rivers with rainfall, resulting in eutrophication of river water, ecological imbalance and environmental pollution, posing a threat to the sustainable development of agriculture

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