Effect of the rotation, soil cultivation and fertilization on the heavy metals (Pb, Cd, Cu, Zn) content in the soil
1999
Zhalnov, I. | Dimov, A. | Dimitrova, M. (Vissh Selskostopanski Institut, Plovdiv (Bulgaria))
In a stationary field experiment during the period 1991-1993 near Plovdiv were researched a certain number of elements, among which and the influence of the crop-rotation, the cultivation of the soil. The fertilization over the pollution with heavy methals. It was estabilished that the two-field crop-rotation in a combination with a system of soil-cultivation leads to decrease of the pollution of the soil with heavy metals in comparison with five-field crop-rotation with the traditional cultivation of the soil the fertilization dose not affect the content of heavy metals in the soil.
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Эту запись предоставил Institute of Agricultural Economics