the various tillage methods significantly affected contents and distribution of soil total n, mineralization potential of n, microbial biomass n and mineral n in the soil profile.
不同耕作处理对土壤全氮、氮素矿化势、生物量氮和矿质氮在土层中的分布及含量有明显的影响。
a long-term experiment was used to study the effect of different tillage methods and different fertilizer management on soil properties in rice-based cropping system.
利用长期定位试验研究了稻麦轮作条件下不同耕作方式和培肥制度对土壤性质的影响。
a recent study reported on almost twenty years of different tillage methods in the american states of colorado, kansas and nebraska.
最近的一项研究报导了美国科罗拉多州,堪萨斯州,内布拉斯加州将近二十年里的不同耕作方法。
effects of different tillage methods on saturated hydraulic conductivity and compactiveness of the surface soil;
研究了不同耕作方式对土壤物理特性、水分状况、甘蔗苗期生长的影响 。