Biomass ashes and their phosphorus fertilizing effect on ...
Plant and soil samples were taken from each pot for analyses. Harvested shoots were dried in an oven at 60°C, weighed and ground with a plant mill. The P content in plant tissue was measured after dry ashing using the vanadate-molybdate method (Page et al. 1982). Plant P uptake was calculated by multiplying P content of the shoots and shoot ...