Soil extracellular enzyme activities in the surface (0-5 cm) and subsurface (5-20 cm) layers of alpine meadow ... raw data collected before the warming experiment started. Different lowercase ...

As part of a comparative experiment on black soil usage, a farmer is hired to plow a field with a mule in the traditional way ...

As part of a comparative experiment on black soil usage ... found that the black soil was revealing yellow layers, and grain yields began to decline. A 2020 survey revealed that the thickness ...