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The objective of this paper was to review the irrigation system of Israel and to identify the most common irrigation methods used for safe, efficient and sustainable agricultural production in arid and semi-arid regions of the world. Israel is one of the most densely populated countries in the world and characterized by desert and semi-desert climatic conditions. Major constraints of the country include: Frequent droughts, desertification of agricultural land, rapid urbanization, depleting resources: technological uncertainty and high cost of non-conventional sources, degradation of water quality and increased water scarcity. Among these constrains, water scarcity is the primary limiting factor in Israel agriculture while the country depends on irrigation. The main water source for agriculture is pressure drip irrigation systems. Drip irrigation has the highest water efficiency rate in agriculture, reaching a 70 to 80% rate, versus open irrigation, which achieves 40%. Recycled use of water, waste water, adding nutrients mixed in with the water and desalination are the recent new innovation used to solve problem of water scarcity in Israel. Therefore, technology currently innovated to alleviate problem of irrigation water resources by Israel should have to be adopted in arid and semi arid of the world to increase the productivity.

Striga causes a serious threat to successful cultivation of sorghum in areas of low and erratic rainfall and poor soil fertility. Therefore, to reduce yield losses and severity of Striga, a field experiment was conducted during the cropping season of 2015 on heavily Striga-infested field in Fedis District, Boko site to determine the effect of trap crops (cowpea, soybean, desmodium, control) and N fertilizer rates (0, 46, 92 and 138 kg N ha −1 ) on management of Striga, yield related traits and yield of sorghum. The experiment was laid out in a factorial arrangement in a randomized complete block design (RCBD) with three replications. Moreover, LAI, plant height, head weight plot −1 and aboveground dry biomass yield of sorghum were significantly (P < 0.05) increased by 4%, 9%, 28% and 33%, respectively, by use of cowpea as a trap crop over the control. Likewise use of cowpea as a trap crop significantly (P < 0.01) increased kernel weight head −1 by 6% and grain yield by 23% over the control. Similarly, the main effect of nitrogen showed that increased nitrogen rate up to 46 kg ha

Mung bean has become an important cash and food crop in dry land areas of Ethiopia. However, there is no sufficient research information on the nitrogen (N) and phosphorus (P) fertilizers rates for the crop in the study area. Thus, field experiment was conducted to determine the effects of N and P fertilizer rates on growth, yield components and yield of mung bean under irrigation at Nura-Era, central Ethiopia. The treatments consisted of factorial combinations of three N fertilizer rates (0, 23 and 46 kg N ha-1) in the form of Urea (46% N) and five P fertilizer rates (0, 10, 20, 30 and 40 kg P ha-1) in the form of Triple Superphosphate (20% P)  laid out in randomized complete block design (RCBD) with three replications. Result of the main effect of nitrogen rate showed significantly highest number of primary branches per plant (4.25), number of  pods per plant (17.7), and 100 seed weight (4.94 g) at 23 kg N ha-1. Similarly, the main effect of P fertilizer rate showed that the application of 40 kg P ha-1 produced significantly the highest number of primary branches per plant (4.79), highest number of pods per plant (20.85), the highest number of seeds per pod (6.24), the highest aboveground dry biomass (6838.83 kg ha-1), the highest 100 seed weight (5.21 g) and the highest harvest index (25.96%). The interaction of N and P rates showed that the combination of 23 kg N ha-1 and 40 kg P ha-1 gave the highest grain yield (1902.78 kg ha-1). Thus, the combination of 23 kg N ha-1 and 40 kg P ha-1 can be used to increase the productivity of mung bean in the study area.