selected soils

Biological factors, soils, landscape and some other items were studied and selected.

对流域内生物、土壤、地文因素及其有关项目进行了分析与筛选，确定了评价的原则及标准。

Yellow earth, yellow rendzina and neutral purplish soil are typical soils for tobacco cultivation in Guizhou province and selected for studying community structures of microorganisms and their dynamics in the rhizosphere of flue-cured tobacco.

选择贵州省三种典型的植烟土壤&中性紫色土、黄壤和黄色石灰土为对象，研究了烤烟根际微生物群落结构及其动态变化。

Potassium fixation in selected soils from North China

我国北方一些土壤对外源钾的固定

Factor analysis was performed on 3061 samples of surface soils from the Chengdu basin after a regression analysis, in which fluorine was used as the dependent value while other elements were used as independent values. Elements with higher factor loading were selected to form characteristic groups.

对成都盆地3061个浅层土壤样品以元素为变量进行F回归分析，在回归模型的基础上进行因子分析，并选取因子载荷较大的元素作为特征元素组合。

Kinetics of native potassium release and Potassium Supplying Characteristics TN selected soils

不同土壤钾素释放动力学及其供钾特征的研究