THE INFLUENCE OF SOIL FERTILISATION WITH ORGANIC MANURE ABOUT SURFACE WATERS
Keywords:
surface water, nutrient, run-off processAbstract
In the hydrographic basin of Mures river, aboard an altitude gradient, were taken
samples from surface waters for research the nutrients concentrations. The
reference point was represented by a dairy caw farm where the agricultural fields of
this is applied the organic fertilization with manure. The water samples were
prelevated in spring and autumn and the prelevate dates are the same with spread
manure dates. At the second data prelevaion (in autumn) it observed an increase of
N-NH4, N-NO3 and P in surface water in comparison with the concentrations
founded at first data prelevation (in spring). The explication is the manifestation to
the cumulated and at distance effects of introduction in water to some organic
products, very probably washed from neighborhoods of agricultural field. Were
calculated values of Student test for seasonal comparisons and were founded
significant differences between nutrients concentration values at first and second
prelevations. These bigger concentrations values of N in water are consequence of
wrong manure management.
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