WHEAT PRODUCTIVITY GROWN UNDER MODERATELY SALINE SOIL AS AFFECTED BY VERMICOMPOST, MAGNETITE AND SUGAR INDUSTRY WASTES

Abstract

A field experiment was conducted on clayey soil at Kom AbouKhallad village, Nasser district, Bani-Suef Governorate, Egypt duringthe winter season of 2014/2015. This study was conducted to identify theeffect of applied vermicompost at rates 2.5, 3.3 and 4 Mg fed-1,magnetite at rates 100, 150 and 200 k.g fed-1 and Sugar industry wastes(a mixture of the Filter Mud and Sugar lime wastes with a ratio of about1:1) at rates 6.7, 10 and 13.3 Mg fed-1 as either solely or combinedtreatments, on some soil properties as well as the vegetative growth,nutritional status and yield of wheat (Triticum aestivum L. cv Bani-Suef5). The suitability class of the used irrigation water is C3S1 (ECiw =2.08 dS/m and SAR= 7.12) for Baha drainage water.The obtained results of the investigated soil indicated that, thevalues of EC, ESP and pH, were decreased with application ofvermicompost, magnetite and sugar industry wastes. These decreasesvaried from treatment to another, the best treatment was found to be(T10= filter mud + sugar lime (1:1) w/w (13.3 Mg fed-1) and T13= filtermud + sugar lime (1:1) (6.7 Mg fed-1) + vermicompost) as compared tothe other combined or solely ones. However, the treatments effect onOM% and CEC have the opposite trend since their combination causedincrease of OM and CEC values. Also, application of vermicompost,magnetite and Sugar industry wastes were more pronounced indecreasing soil bulk density, and increasing both hydraulic conductivity,total porosity and soil moisture content values. The obtained dataemphasized that the achieved enhancing soil properties were positivelyreflected on the nutrient contents of plant tissues and plant parameters.(grain and straw yields).So that, it could be recommended that applications ofvermicompost, magnetite and sugar industry wastes should be used toalleviate the hazardous effects of a saline soil or saline irrigation water.In addition, such favourable conditions should be enhance continuousbiological activity and nutrients slow release along the growth stages ofwheat plants, and in turn to minimize their possible losses by eitherleaching or volatilization processes. This approach represents a best strategy in agriculture field that has a long-term positive agronomicvalue and an effective practice of fertilization management on long-term.