摘要
为探讨不同生物肥处理土壤微生物量碳、氮(C、N)对温度、水分条件的响应,以山东鲁青青菜为供试材料,通过室内培养试验,以单施有机肥为对照,研究3种不同生物肥(中和牌、NST型及爸爱我)配合有机肥处理在温度25℃、35℃,水分45%、60%、75%、90%下对土壤中微生物量C、N含量的影响。结果表明,单施有机肥,土壤微生物量C、N在25℃,田间持水量75%培养时最大;中和牌生物肥与有机肥配施处理在25℃,田间持水量60%培养时最佳;NST型生物肥与有机肥配施处理在25℃,田间持水量60%时最佳;爸爱我生物肥与有机肥配施处理对温度、水分的适宜性较强,其最佳培养条件为温度25℃,田间持水量60%或75%。不同生物肥处理对温度、水分的响应具有一定的差异性。
In order to investigate the response of soil biomass C and N to the conditions of temperature and moisture, laboratory experiments were carried out to examine the effects of different bio-fertilizers on soil microbial biomass C and N with different temperature (25,35℃)and field moisture capacity (45% ,60% ,75% ,90%). In this study,four treatments consisted of organic fertilizer only (CK),Zhonghe bio-fertilizer combined with organic fertilizer (ZHH), N ST bio-fertilizer combined with organic fertilizer (NST) and BIO bio-fertilizer combined with organic fertilizer (BIO). Results showed that CK had the optimal soil microbial biomass under the condition of temperature 25℃ and field moisture capacity 75%; Both ZHH and NST had the optimal soil microbial biomass under the condition of temperature 25 ℃ and field moisture capacity 60% ; BIO had a strong suitability of temperature and moisture, getting the optimal soil microbial biomass under the condition of temperature 25 ℃ and field moisture capacity 60% or 75%.
出处
《河南农业科学》
CSCD
北大核心
2013年第3期63-65,75,共4页
Journal of Henan Agricultural Sciences
关键词
生物肥
温度
水分
土壤生物特性
土壤微生物量
bio-fertilizer temperature
moisture
soil biological characteristics
soil microbial biomass