摘要
在典型的酸化黑土上,研究了有机无机复混肥不同施入量对大豆根际土壤pH值、细菌、真菌及放线菌含量的影响。结果表明:有机无机复混肥可以大幅增加土壤中细菌、真菌和放线菌的数量,其中细菌数量增加幅度最大,从52×106.g-1增加到154×106.g-1;同时施加复混肥还能提高土壤的pH值(从5.84到6.25)和大豆固氮菌的活性进而改善土壤的理化性质;此外,施加复混肥还可以增加速效氮和速效钾等营养成分的释放从而使土壤的营养水平得到明显改善,最终导致大豆产量的增加。
We measuring the values of pH,the content of bacteria,fungi and actinomycetes in acidic black soil to explore the effects of organic-inorganic compound fertilizer on soybean rhizosphere.The results showed that the application of organic-inorganic compound fertilizers to the soil increased the number of soil bacteria,fungi and actinomycetes,in which the number of bacteria increased from 52×106 to 154×106·g-1,meanwhile the application of compound fertilizers resulted in the increasing of pH values（from 5.84 to 6.25） and activity of rhizobia.Besides,the addition of compound fertilizer enhanced the absorption of N,and K nutrients by soybean plant,which eventually led to the increase of soybean yield.These results indicate that the application of organic-inorganic compound fertilizer could improve the physical,chemical and nutrients conditions of the soil and this will lead to the increase of soybean yield ultimately.
出处
《大豆科学》
CAS
CSCD
北大核心
2010年第4期730-732,共3页
Soybean Science
基金
黑龙江省科技计划资助项目(QC07C47)
黑龙江省农科院创新工程资助项目
关键词
有机无机复混肥料
大豆
土壤速效养分
根瘤菌活性
Organic-inorganic compound fertilizer
Soybean
Soil available nutrients
Rhizobium activity
