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Articles by Mushari A. Al-Naeem
Total Records ( 3 ) for Mushari A. Al-Naeem
  Mushari A. Al-Naeem
  A field study was carried out to determine the effect of irrigation scheduling on growth parameters and Water Use Efficiency (WUE) of barley and faba bean crops for optimum production during the winter seasons of 2001-02 and 2002-03. Four irrigation treatments T1 (application of water at field capacity soil moisture), T2, T3 and T4 irrigation at 15, 30 and 45% soil moisture depletion of the available water at field capacity of soil, respectively were tested on a loamy-sand soil. Plant growth parameters of both the crops were significantly affected by the different irrigation treatments. Mean barley grain yield ranged from 4.52-6.72 Mg ha-1 and the faba bean seed yield from 0.86-1.45 Mg ha-1 in different irrigation treatments. The WUE, based on total grain/seed yield ranged between 0.90-148 kg m-3 of water for barley and 0.17-0.30 kg m-3 of water for faba bean in different irrigation treatments. There was no significant difference in WUE of barley and faba bean crops between T1 and T2 treatments. The WUE was slightly higher in T2 (irrigation at 15% soil moisture depletion) than T1 (irrigation at soil moisture of field capacity level). In conclusion, appreciable grain yield of barley and faba bean seed can be achieved if irrigated at 15% soil moisture depletion. The study provided useful information for scheduling irrigation of barley and faba bean crops under arid environment for efficient water use and management.
  Mushari A. Al-Naeem
  The main objective of this study was to study the performance of alfalfa under water stress conditions and determine water use efficiency (WUE) for optimal forage production under the arid climatic conditions of Al-Ahsa having limited irrigation water supplies. Plant growth parameters of alfalfa were significantly affected by different irrigation treatments. Mean alfalfa dry forage (hay) yield ranged between 2.21-5.33 MG ha-1 in different irrigation treatments. The WUE was higher in T1 (irrigation at field capacity soil moisture level) than other water stress treatments. It was noticed that alfalfa dry forage yield was severely affected by irrigation stress. In conclusion, the WUE of alfalfa crop was highest in T1 (irrigation at field capacity level of soil moisture) than other irrigation treatments. The study provided an excellent opportunity for scheduling irrigation of alfalfa crop for optimal dry-forage production under arid climatic conditions of Al-Ahsa, Saudi Arabia.
  Mushari A. Al-Naeem
 

Laboratory experiments were conducted at the Agricultural and Veterinary Training and Research Station, King Faisal University, Al-Hassa, Kingdom of Saudi Arabia to study the effect of pulse irrigation from a line source on sandy soil uniformly packed in soil tank using high flow rates. It was found that the increase in pulsed flows up to six times to that of the equivalent continuous flow can be used with little change to the soil wetting pattern. The water deep percolation reduced and horizontal spread increased with an increase in the pulsed flow up to twelve times to that of continuous flow (control treatment). A strong correlation was obtained between the water application rates and the vertical and horizontal advances which could be expressed as power function. The results showed an excellent potential to increase the emitter sizes up to 2.4-3.5 times and the emitter cross section area up to 6.0-12.0 times than the normal size for reducing the trickle clogging problem. Empirical analysis of the vertical and horizontal advance shows that both of these parameters can be expressed as a power function.

 
 
 
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