Effect of irrigation water salinity and organic waste on growth and yield of Eggplant grown in plastic houses under drip- irrigation system.

Abstract

Field experiment was conducted during 2015-2016 growing season to study influence of irrigation water salinity and organic waste on growth and yield of eggplant in plastic houses under drip-irrigation system under factorial experiment in Randomized complete block design ( RCBD) with three replicates . The experiment included (12 ) treatments which was the interaction between three irrigation water quality(River water,1/2 river water +1/2drainage water and 1/4 river water+3/4 drainage water ) and four types of organic wastes (control(without waste), waste of sheep , waste of poultry and waste of cow). The irrigation treatment (1/2 river water +1/2drainage water) showed highest value for plant height ,number of branches ,leaf area , number of fruits ,weight of fruit and total yield (17.74 kg.m-2) In addition to increase N and decrease P and K. The result show that organic waste increase significantly all parameters above and gave highest yield value (20.37 kg.m-2 ) , in addition to increase N , P , and K in plant and soil. The interaction treatment of (1/2 river water+1/2 drainage water ) and waste of poultry caused significant increase in all parameter above , giving the highest yield 22.93 kg.m-2 .