出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：A field study was conducted on clay loam soil at the research farm of The University of Agriculture Peshawar during Kharif 2012. Objective of the study was to compare the crop water productivity of maize using two traditional (V 1 =Azam and V 2 =Jalal) and two hybrid (V 3 =3025W and V 4 =30K08) varieties having four replicates. Soil moisture was determined by gravimetric method taking into account soil moisture, rainfall, and irrigation water applied. Crop water productivity (CWP) was calculated by dividing grain yield and total seasonal water applied to each variety. Results showed that CWP of maize variety V 1 ranged from 0.75-0.8 kg m -3 with a mean of 0.8 kg m -3 , CWP of V 2 ranged from 0.82-0.91 kg m -3 with a mean of 0.85 kg m -3 , CWP of V 3 ranged from 1.16-1.23 kg m -3 with a mean of 1.19 kg m -3 and CWP of V 4 ranged from 1.19-1.31 kg m -3 with a mean value of 1.24 kg m -3 . Crop water productivity in case of V 1 was low compared to FAO reported values. CWP was found statistically significant (P ? 0.05) for the selected maize varieties. Results showed that among all the varieties V 4 performed better therefore, it is recommended for irrigated areas of Khyber Pakhtunkhwa.
