Grain planting diagram. Hand throws a seed into a hole dug in dug soil. Sketch. Vector illustration. Outline on an isolated white background. Doodle style. Coloring book for children. Idea for web ...

In addition, undisturbed soil samples were obtained using a core sampler to assess the bulk density. Standard laboratory procedures were employed to analyze the physical properties (bulk density, ...

1 Inner Mongolia Key Laboratory of Soil Quality and Nutrient Resources, Inner Mongolia Agricultural University, Hohhot, China 2 Key Laboratory of Agricultural Ecological Security and Green Development ...