腐植酸复合肥对土壤微生物量的影响

Effect of the Humic Acid Fertilizer on the Quantity of Microorganism in the Soil

研究了不同用量的腐植酸复合肥对土壤中细菌、放线菌、真菌3种微生物量的影响。结果表明:腐植酸复合肥能够显著提高土壤微生物的数量,但对不同种类的微生物其效果不同:对细菌的影响最大,真菌次之,对放线菌的影响最小。微生物的数量与土壤中速效氮、磷、钾含量间呈极显著或显著性关系。

In this article,the quantity of the bacterium,the fungi and the ray fungi in the soil was studied at different application rate of the HAF. The results showed that： The quantity of microorganism in the soil can be improved by fertilizing HAF, and the different microorganism represented different results. The quantity of bacterium was improved at the highest level, and then the fungi, the ray fungi at the last. There was a positive or significant positive correlation between the quantity of the microorganism and the content of available-N,and available-P,and available-K in the soil.