Effects of Phosphorus Fertilizer Source and Plant Density on Growth and Yield of Maize in Northwestern Pakistan

REFERENCES

• Amano , L. O. and Salazer , A. M. 1989 . Comparative productivity of corn and sorghum as adjusted by population density and nitrogen fertilization . Philippine Agriculture , 72 : 247 – 254 .
   Google Scholar
• Chaudhry , I. M. 1994 . Crop Production , Islamabad, , Pakistan : National Book Foundation .
   Google Scholar
• Duncan , W. G. 2002 . A theory to explain the relationship between corn population and grain yield . Crop Science , 24 : 1141 – 1145 .
   Web of Science ®Google Scholar
• Edwards , J. T. , Purcell , L. C. and Vories , E. D. 2005 . Light interception and yield potential of short season maize hybrids in the Midsouth . Agronomy Journal , 97 : 225 – 234 .
   Web of Science ®Google Scholar
• Gee , G. W. and Bauder , J. W. 1986 . “ Particle size analysis ” . In Methods of Soil Analysis, Part 1 , Edited by: Klute , A. 383 – 411 . Madison, WI : American Society of Agronomy .
   Google Scholar
• Hassan , A. A. 2000 . Effect of plant population on yield and yield components of eight Egyptian maize hybrids . Bulletin of Faculty of Agriculture, University of Cairo , 51 ( 1 ) : 1 – 16 . abstract in Field Crops Abstracts 54: 249312
   Google Scholar
• Hussain , M. Z. and Haq , I. U. 2000 . “ P sorption capacities of NWFP soils ” . In Proceedings of Symposium on Integrated Plant Nutrient Management, 8–10 November, 1999, Islamabad, Pakistan , 284 – 296 . Islamabad, Pakistan : National Fertilizer Development Center .
   Google Scholar
• Ibrikci , H. , Ryan , J. , Ulger , A. C. , Buyuk , G. , Cakir , B. , Korkmaz , K. , Karnez , E. , Ozgenturk , G. and Konuskan , O. 2005 . Maintenance of P fertilizer and residual P effect on corn production . Nigerian Journal of Soil Science , 2 : 279 – 286 .
   Google Scholar
• Nelson , D. W. and Sommers , L. E. 1982 . “ Total carbon, organic carbon and organic matter ” . In Methods of Soil Analysis, Part II , Edited by: Page , A. L. , Miller , R. H. and Kenney , D. R. 574 – 577 . Madison, WI : American Society of Agronomy .
   Google Scholar
• NFDC . 1986 . “ Agronomic, marketing and economic aspects of TSP as compared to other phosphatic fertilizers ” . Islamabad, , Pakistan : National Fertilizer Development Centre Publication No. 4. National Fertilizer Development Center .
   Google Scholar
• Ogunlela , V. B. , Amoruwa , G. M. and Olongunde , O. O. 2005 . Growth, yield components and micronutrient nutrition of field maize grown as affected by nitrogen fertilization and plant density . Nutrient Cycling in Agroecosystems , 17 : 385 – 1314 .
   Google Scholar
• Okalebo , J. R. and Probert , M. E. 1992 . Effects of P on the growth and development of maize. A search for strategies for sustainable dryland cropping in semi-arid eastern Kenya . Nairobi Agriculture Journal , 12 : 8 – 20 .
   Google Scholar
• Olson , R. A. and Sander , D. H. 2003 . “ Corn production ” . In Corn and Corn Improvement , Edited by: Sprague , G. F. and Dudley , J. W. 639 – 686 . Madison, WI : American Society of Agronomy .
   Google Scholar
• Osinama , O. A. 1995 . Evaluation of three P sources for maize in South Western Nigeria . Tropical Agriculture , 62 : 33 – 37 .
   Google Scholar
• Reghuram , K. , Singh , T. A. and Vasta , N. K. 1994 . Effect of phosphate fertilizers of different water solubility on maize and residual effect on wheat in a mollisol . Pantnagar Journal of Research , 29 : 40 – 43 .
   Google Scholar
• Sahoo , S. C. and Panda , M. 2001 . Effect of P and detasseling on yield of babycorn . Indian Journal of Agricultural Science , 71 : 21 – 22 .
   Web of Science ®Google Scholar
• Sangoi , L. , Gracietti , M. A. , Rampazzo , C. and Bianchetti , P. 2002 . Response of Brazilian maize hybrids from different eras to changes in plant density . Field Crops Research , 79 : 39 – 51 .
   Web of Science ®Google Scholar
• Singh , R. S. 1984 . A note on relative efficiency of phosphatic fertilizers for South western Nigeria . Tropical Agriculture , 62 : 33 – 37 .
   Google Scholar
• Soltanpour , P. N. 1985 . Use of AB-DTPA to evaluate elements availability and toxicity . Communications in Soil Science and Plant Analysis , 16 : 323 – 338 .
   Web of Science ®Google Scholar
• Steel , R. G. D. , Torrie , G. H. and Dickey , D. 1996 . Principles and Procedures of Statistics , New York : McGraw Hill .
   Google Scholar
• Toler , J. E. , Murdock , E. C. , Stapleton , G. S. and Wallace , S. U. 1999 . Corn leaf orientation effects on light interception, intra-specific competition, and grain yields . Journal of Production Agriculture , 12 : 396 – 399 .
   Google Scholar