The application of oily waste to soil may lead to undesirable conditions, which may affect plant growth. One of these conditions is nutrient deficiency resulting from the competition between plants and microorganisms responsible for oil decomposition. Nitrogen is usually the limiting nutrient. Thus application of oily sludge to soil must be accomplished with nutrient addition. This study examines the effect of adding oily waste alone & in combination with nitrogen fertilizer & hog manure on soil nutrient supply, plant growth and plant nutrition.