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Physical properties of unproductive soils of Northern China

100%

Malik Z., Malik M. A., Zong Y.-T., Lu S.-G.

International Agrophysics

2014

tom 28

nr 4

The general characteristics: particle size distribution, pH, cation exchange capacity, organic matter content, total NPK, surface area; and physical properties: coefficient of linear extensibility, tensile strength, shear strength and cracking, were investigated in unproductive soils of Northern China. Principle component analysis showed that tensile strength, cohesion, cracking characteristics, clay content, cation exchange capacity and coefficient of linear extensibility were positively correlated with each other, whereas negatively correlated with angle of friction, indicating that these properties were subjected to clay % and smectite content. These correlations might be mainly responsible for low productivity (low yields) in Northern China.

Ograniczanie wyników

1 International Agrophysics

1 Lu S.-G.

1 Malik M. A.

1 Malik Z.

1 Zong Y.-T.

1 2014

Wyniki wyszukiwania

Physical properties of unproductive soils of Northern China