Original research article
Losses of Ca, Mg and SO4 2-S with Drainage Water at Fertilisation with Different Nitrogen Rates
2007, 72 (1) p. 53-58
Milan Mesić, Ivica Kisić, Ferdo Bašić, Anđelko Butorac, Željka Zgorelec, Ivan Gašpar
Abstract
Quantities of Ca, Mg and SO4 2- S leached by drainpipe water from drained Stagnosols of Central Croatia are determined for the period from 1997 to 2004 Ca2+, Mg2+ and SO4 2- S concentration in drainage water varied in dependence on the crop type and development stage, on the fertilization, on the quantity and intensity of precipitation, and on the drainage volume. In 8-year average, quantities of Ca, Mg and SO4 2- S leached with drainage water at selected trial treatments with uniform P and K fertilisation and with diff erent nitrogen rates varied from 96.6 to 142.4 kg ha-1, from 46.7 to 69.2 kg ha-1 and from 10.6 to 15.2 kg ha-1, respectively.
Keywords
subsurface drainage, leaching, SO4 2- S
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