تلخیص
Field experiments were conducted during 1996 and 1997 at the experimental farm of NIFA to compare the efficiency of soil-applied and fertigation applied P using Potato as test crop. Phosphorus was applied 075 and 150 Kg P20,/ha directly to the soil at the lime of sowing and in solution form mixed with irrigation water (ferrigation) to the standing crop five weeks after sowing along with a control treatment receiving no P fertilizer. The result obtained showed that phosphorus applied as fertigation out yielded the soil application. The cost economics of soil-applied and fertigation applied P revealed that phosphorus applied through fertigation produced more economic return than soil applied P.
S. Mahmood Shah, M. Mohsin Iqbal, Wisal Mohammad, H. Nawaz. (2001) Phosphorus application to potato through irrigation water, , Volume 20, Issue 3.
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