Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 13 ISSUE 2
Written by Harby MOSTAFA, Asaad DERBALA
In the humid and sub-humid areas, agricultural production is largely rain fed and this needs to be urgently supplemented by irrigation practice if the country is to meet its food demand. A two years study was carried out at the experimental site of the Institute of Agricultural Technology and Biosystems Engineering, Johan Heinrich von Thünen Institute (vTI), Braunschweig, Germany to compare performance of maize crop for silage production using three different irrigation systems; rain fed, drip and rain-gun sprinkler. Growth parameters such as plant height, stem diameter were measured. The total yields of silage were obtained for all treatments at the harvesting. The experimental results revealed that total yields obtained from different treatments were 25.76, 24.23 and 9.30 Mg.ha-1 using drip, rain-gun and rain fed irrigated maize, respectively. The results also showed that the water use efficiency reached 11.01 Mg.m-3 for drip irrigation, while it was 8.84 Mg.m-3 for rain-gun system. In conclusion, supplementary irrigation in critical period of maize growth is an effective way to increase yield in the sub-humid regions. Therefore, it is suggested that optimum production of maize could be achieved by rain fed supplementary irrigation.