EVALUATION OF RESIDUAL EFFECT OF FARMYARD MANURE WITH NITROGEN AND PHOSPHOROUS (NP) ON SUCCEEDING MAIZE AFTER WHEAT
WAQAS KHAN KAYANI1*, FAIZA RASHEED2, ADEEL MAHMOOD3, ADIL KHAN KAYANI4
1*Molecular Biology Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
2Department of Agro systems, P.O Box 104, The Swedish University of Agriculture Sciences, SE 230 53, Alnarp, Sweden
3Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
4Soil and Water Testing Laboratory Kotli, Department of Agriculture Services Directorate of Research, AJK, Pakistan
Keywords: Residual effect, Farmyard manure, NP Fertilizers, Maize, Wheat.
In the study, the residual effect of farmyard manure (FYM) given to previous wheat was evaluated on the next maize crop. A three-crop based experiment maize (control)-wheat-maize from summer 2007 (Kharif) to summer 2008 (Kharif) was performed. Standard dose of FYM was given to the field of intermediate wheat crop. Different NP doses were applied in the four treatments. Residual effect of FYM was estimated out on seven parameters viz; plant height (cm), ear height (cm), cob length (cm), grain row/cob, grains/row, 1000 grains weight (gm) and grain yield/plot (kg). All the parameters exhibited significant results after FYM application except grains/row. Except the ear length, replications remained non-significant. Plant height, cob length and grain yield/plot exhibited fairly significant results with different treatments, while other four parameters remained non-significant. No interaction found between treatments, and before and after FYM application except in 1000 grains weight. Overall 21.37% increase in grain yield/plot was observed. We suggest the application of N 90 kg ha-1 + P 60 kg ha-1 (T2) and N 120 kg ha-1 + P 80kg ha-1 (T3) with standard dose of FYM (6000 kg ha-1) on the previous crop to get better yield of upcoming maize crop in arid regions of Pakistan.