Effect of organic and inorganic inputs on soil parameters and productivity of coarse rice (Oryza sativa L. cv. IR-9)
Khakwani, A.A. (Gomal Univ., Dera Ismail Khan (Pakistan). Dept. of Agronomy) | Saddozai, U.K. (Gomal Univ., Dera Ismail Khan (Pakistan). Dept. of Agronomy) | Awan, I.U. (Gomal Univ., Dera Ismail Khan (Pakistan). Dept. of Agronomy) | Baloch, M.S. (Gomal Univ., Dera Ismail Khan (Pakistan). Dept. of Agronomy) | Khan, Q. (Gomal Univ., Dera Ismail Khan (Pakistan). Dept. of Soil and Environmental Sciences) | Munir, M. (SOYL Precision Crop Production Div., Newbury (United Kingdom). Frontier Agriculture) | Saddozai, G. | Bakhsh, I.
Present research was carried out at Gomal University, Dera Ismail Khan, KPK n during 2012 to study the effects of organic manures (Sarzamin, Simba and Sara) alone and in combination with full and half NPK doses of inorganic fertilizers on the yield and yield attributes of coarse rice (CV. IR-9) and soil health. Experiment was laid out in RCBD with three replications and 10 treatments including T1 (NPK 140:90:60 kg/ha), T2 (NPK 140:90:60 kg/ha + Sarzamin @ 250 kg/ha), T3 (NPK 140:90:60 kg/ha + Simba 62.5 kg/ha), T4 (NPK 140:90:60 kg/ha + Sara 25 kg/ha), T 5 (NPK 70:45:30 kg/ha + Sarzamin 250 kg/ha), T6 (NPK 70:45:30kg/ha + Simba 62.5kg/ha), T7 (NPK.70:45:30 kg/ha + kg/ha). Maximum plant height (112.21cm), number of fertile tillers per hill (24), 1000-grain weight (25.99g), chlorophyll content (39.40), paddy yield (8.88 t/ha) and biological yield (23.23 t/ha) were recorded in T2.· Whereas, solitary application of Sarzamin, Simba and Sara did not show significant results. The economic analysis indicated that a combined application strategy for organic and inorganic fertilizer is viable and productive. Soil amendment with organic and inorganic fertilizer was found to be a feasible solution for the growers who cannot afford sole application of high cost inorganic fertilizers.
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