Total Phosphorus and Phytate Phosphorus Content

The aim oflhis work was to an.. lyse thc tota l and phytatc phosphorus contents of grain maize varie ties from three Central German locations, s ince these are important factors for Ihc availabi lity of P. For all 100 tesled maize samples the lotal phosphorus content o f 3.41 g/kg DM and a phytatc phosphorus content of 2.63 g/kg DM and the ratio phyla te! total phosphorus of 77 % were determined. Also, il was to be established whether the total and phytate p hosphorus contents are influenced by variety, location, cl imate or maturity group. While a statist ically significant innuence o f varieties on the total and phytate phosphorus contents could nOt be proved, it was possible to de tect statistically signi fica nl differences between the lotal and phytate phosphorus contents among the va rieties of the early and medium.early maturity groups. One could notice a slatist ical ly significant influence of the location o n total phosphorus and ph ytate phosphorus con· tenlS. The crop years had also got a significa nt influence