The influence of nitrogen on sorghum‐weed competition in the tropics

References

• ABDULLAHI , S. 1988 . Maize‐weed competition as affected by nitrogen , 47 Bauchi, , Nigeria : Abubakar Tafawa Balewa University . B.Sc. Project dissertation
   Google Scholar
• BEWANI , F. F. 1981 . Response of sorghum cultivars and Striga population to nitrogen fertilization . Plant and Soil , 59 : 261 – 267 .
   Google Scholar
• BLACKMAN , G. E. and TEMPLEMAN , W. G. 1938 . The nature of competition between crops and annual weeds . Journal of Agricultural Science , 28 : 247 – 271 .
   Google Scholar
• BURNSIDE , O. C. and WICKS , G. A. 1967 . The effect of weed removal treatments on sorghum growth . Weeds , 15 : 204 – 207 .
   Web of Science ®Google Scholar
• DAHTONDE , B. N. and ADHARO , S. H. 1978 . Effects of nitrogen and phosphorus fertilization on yield and yield components of hybrid sorghum . Journal of Manharashtra Agricultural University , 3 ( 1 ) : 30 – 32 .
   Google Scholar
• FELTNER , P. 1969 . Tall waterhemp competition in grain sorghum . Weed Science , 17 : 214 – 216 .
   Google Scholar
• GALBIAITTE , J. A. and BENINIASA , M. M. 1980 . Effect of rate and date of application of Ammonium sulphate on the performance of Sorghum bicolor . Journal of Maharashtra Agricultural University , 3 : 231 – 233 .
   Google Scholar
• NIETO , J. , BRANDO , M. A. and GONZALEZ , J. T. 1968 . Critical periods of the crop growth cycle for competition from weeds . Proceedings of the Academy of Natural Sciences (C) , 14 : 159 – 166 .
   Google Scholar
• OKAFOR , L. I. 1980 . Effects of nitrogen level, and purple nutsedge competition on the growth characteristics and grain yield of tropical upland rice (Oryza sativa L.) . Nigerial Journal of Agricultural Science , 2 ( 1 ) : 21 – 28 .
   Google Scholar
• OKAFOR , L. I. 1987 . Competition between weeds and irrigated wheat in the Nigerian Sahel zone . Tropical Pest Management , 33 ( 4 ) : 356 – 358 .
   Web of Science ®Google Scholar
• OKAFOR , L. I. and DE DATTA , S. K. 1976 . Competition between upland rice and purple nutsedge for nitrogen, moisture and light . Weed Science , 24 : 43 – 46 .
   Web of Science ®Google Scholar
• OMENGA , F. S. 1979 . Response of sorghum to nitrogen and phosphorus application in Western Tanzania . Indian Journal of Weed Science , 4 ( 2 ) : 23 – 28 .
   Google Scholar
• PAULCHER‐HAUSSLING , M. and MURLE , K. 1986 . Effect of fertilisation on competition between weeds and winter wheat . Proceedings, EWRS Symposium on Economic Weed Control . 1986 , Wageningen, Netherlands. pp. 137 – 144 .
   Google Scholar
• PHILLIPS , V. W. 1970 . “ Weed control methods, losses and cost due to weeds, and benefits of weed control in sorghum ” . In FAO International Conference on Weed Control 101 – 108 . Davis, California
   Google Scholar
• RAO , A. B. and REDDY , P. R. 1972 . Dry‐matter accumulation at important physiological stages of grain yield and protein quality under different levels of nitrogen in sorghum . Indian Journal of Agricultural Science , 43 : 138 – 142 .
   Google Scholar
• SANKARAN , S. and MANI , V. S. 1972 . Effect of weed growth on nutrient uptake and seed yield of sorghum . Indian Journal of Weed Science , 4 ( 1 ) : 23 – 28 .
   Google Scholar
• SANKARAN , S. and MANI , V. S. 1975 . Influence of weed competition on growth, yield, nutrient uptake and seed protein content of sorghum . Indian Journal of Weed Science , 7 ( 1 ) : 9 – 15 .
   Google Scholar
• SARDAR , S. and BRAHM , S. 1983 . Response of sorghum cultivars to nitrogen fertilization under rainfed conditions . Indian Journal of Agronomy , 28 ( 2 ) : 321 – 323 .
   Google Scholar
• VESECKY , S. 1973 . Wild cane and forage sorghum competition in grain sorghum . Weed Science , 21 : 28 – 32 .
   Google Scholar