“THE EFFECT OF CARS CRANK CASE OIL APPLICATION ON SOME SOIL PROPERTIESAND WHEAT GROWTH AND YIELD “

Abstract

This study was conducted to testing the effectof cars crank case oil which addied to the soil with levels 0.5% ,1.0% and 2% (according to dry weight) addition to control treatment.to three soils Loam and clay and sand Loam textures. On Some chemical and biological properties of soil , after three months of incubation at degree ( 30±5 C ) and its effects on growth and yield of wheat crop.addition to study of some soil physical and chemical properties after harvesting . The Results showed improvment of studied soil properties after incubation period , which positively reflected on wheat plants growth and yield .also the used levels of cars crank case oil no instant evidance of contamination the soil with lead also toxicity for grains . The clay texture soil was showed the superiority compared with the Other soils in improving soil chemical and physical properties and growth of cultivted plants and its yield .Which indicated possibility of getting rid of the cars crank case oil which considered as dangerous environment polluter in scientific methods which depending on levels of application and soil types and salinity with possible time of addition .