大豆行间覆膜对土壤养分及微生物的影响

Effect on Soil Nutrient and Microorganism Due to Soybean Line Spacing Tectorial Membrane

大豆行间覆膜能显著的提高地温,增加了土壤的水分含量。特别是在土壤水分不足时,增加的更加显著;土壤养分矿化加快,使土壤速效养分增加;提高了微生物的活性,细菌、真菌、放射菌的数量都明显增加,不同生育期土壤微生物生物量碳增加23.17%~27.27%。

Soybean line spacing tectorial membrane can improve ground temperature markedly,and Increase soil moisture content.Particularly when soil moisture content is not enough,this effect is more distinct.Accelerating Soil nutrien mineralization can increases soil readily available nutrient,and improve activity of microorganism,amounts of bacterial,fungi and catinomycetes increase remarkably.Different period of duration,biomass C contents increase 23.17%~27.27%.