Abstract:
In a soil incubation study on twenty-two alkaline calcareous soils, it was found that the fixation of Zn proceeded rapidly up to 3 days of contact but thereafter it increased gradually and reached a slow steady state after 7 days. Average recovery of added Zn with DPTA (Diethylenetriaminepentaacetic acid) after 14 days was about 63%. This fraction presumably would be available for plant uptake. DPTA-extractable native Zn showed a significant correlation with clay and organic matter content of the soils. Native soil Mn extracted with DPTA, and NaNC03-extractable P correlated negatively (P
Page(s):
64-69
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 22, Issue: 1--2, Year: 1979