Attafy, T. M.  <br/><br/>
Integrated management of fish (Nile Tilapia) and leaf vegetable crop (head lettuce) culture under drip irrigation system  [electronic resource]. 
 الإدارة المتكاملة لمزارع الأسماك(البلطي النيلي)ومحاصيل الخضر الورقية(خس الروؤس)تحت نظام الري بالتنقيط. 

 - p. 105-124. 
<br/><br/>Includes bibliographic reference. 
<br/><br/> Effluent of fish farms is considered a safe source for irrigation and fertigation in the same time. A field experiment took place on Horticulture research <br/>farm, Faculty of Agricultural, Kafr El-Sheikh University, north of the Nile Delta, Egypt, having a clay textured soil during winter growing seasons of <br/>2015/2016 and 2016/2017to study the effect of utilization of fish effluent on lettuce production and emitters performance under drip irrigation system. <br/>The drip irrigation system was studied at three different emitter types: long path flow, in-line type and 4 l h-1 discharge (D1); turbulent flow, on-line <br/>type and 6 l h-1 discharge (D2) and laminar flow, on-line type and 4 l h-1 discharge (D3), three levels of recommended N dose: 100% N, 75% N and 50% N <br/>and two different sources of irrigation water: traditional irrigation water (IW) and drainage water of fish ponds (FW). Traditional irrigation water was <br/>applied at 100% N only. Main results cleared out that, FW increased clogging ratio comparing with IW for different emitter types, D3 emitter had the <br/>highest clogging ratio while D2 emitter had the lowest; application uniformity at end of the growing season decreased comparing with it at beginning <br/>for all treatments, FW decreased Cu at end of the growing season comparing with IW; FW enhanced lettuce yield comparing with IW for different treatment, <br/>where FW increased total head yield by 51.2, 50.2 and 61.3% for D1, D2 and D3 respectively comparing with IW under 100% N level; FW increased water and <br/>nitrogen productivity comparing with IW for different treatments. Weight gain during feed period values were 52.95 and 52.42 g at the technique of water <br/>exchange and traditional treatment respectively.<br/> 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrated aquaculture.<br/>Nile tilapia--Breeding.<br/>Lettuce--Planting.<br/>irrigation systems.