Abstract

In a pot culture experiment, response of three wheat cultivars to Your levels of phosp horus was studied. A significant increase in drymatter production was recorded upto 90 ug P/g soil resulted in about 3.5 times greater drymatter over control. Uptake of 32-P was also increased significantly with increasing levels of phosphorus upto 90 ug P/g soil. Per cent utili- zation of applied phosphorus increased due to first increment in phosphorus but it was reduced considerably with additional increment in phosphorus. Percent utilization of applied P was maximum in wheat variety S-308 (6.63 percent) followed by HD-1593 (5.98 percent) and HD-4502 (4.84 per cent) respectively during their growth for 45 days.

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