EFFECT OF FERTIGATION METHODS ON PRODUCTIVETY AND NITROGEN USE EFFICIENCY FOR WHEAT AND BARLEY CROPS

Document Type : Original Article

Authors

1 Assoc. Prof., of Ag. Eng. Dept., Fac. Ag.., Cairo Univ., Egypt.

2 Assis. Prof of crop prod., Fac. Agric & Veter. Medic., Qassim Univ, KSA.

Abstract

The current study was carried out at Agricultural and Veterinary Research Station, Faculty of Agriculture and Veterinary Medicine, Qassim University, Kingdom of Saudia Arabia during 2006/07 and 2007/08 wheat and barley growing seasons. The objective of this study is to investigate the effect of fertigation  and hand broadcasting methods on: uniformity coefficient of water "CUw", uniformity coefficient of nitrogen "CUn", productivity,  water use efficiency "WUE" and nitrogen use efficiency "NUE" of wheat and barley crops. Fertigation methods were included injection pump (IP), venture (VE) and differential pressure tank (DP). The results indicated that fertigation methods affected all parameters of this study. Injection pump method then venture method had the highest values of "CUw", "CUn", productivity,"WUE" and "NUE" of wheat and barley crops. While hand broadcasting method had the lowest values of these parameters. In wheat crop, injection pump and venturuy methods had the tallest plants, highest number of spikes m-2, number of spikelets spike-1, heaviest kernel weight   and highest values of grain and biological yields, while, control treatment gave the lowest values for these traits.

Main Subjects


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