Determination of optimum soil bulk density on the basis of spring barley response
2002
Tomaszewska, J. (Institute of Soil Science and Plant Cultivation, Pulawy (Poland))
The paper presents an origin method of determining and calculating the optimum values of soil bulk density for growth and yielding of plants. The soil bulk density in pot experiment with different level of soil compaction ranges were: from 1.10 to 1.50 Mg/cubic m for clayey silt and from 1.10 to 1.80 for heavy loamy sand. The analysis of variance showed a significant effects of soil compaction on the number and mass of plants per pot after emergence, root mass and grain yields of spring barley. The optimum values of soil bulk density for spring barley were determined on basis of the maximum grain yields as follows: -clayey silt (loess) - 1.33 Mg/cubic m; -heavy loamy sand - 1.57 Mg/cubic m
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