Fate of Citric Acid Addition on Mineral Elements Availability in Calcareous Soils of Jordan Valley

摘要

The variation in physical and chemical properties of calcareous soils in Jordan valley has been changed dramatically due to use large amount of fertilizers in regular manner. Addition of organic acid such as citric acid (CA), can greatly change the pH which can affects plant growth and production, the weakly ionized organic acid present in the calcareous soil mostly in the form of organic matter, can play major rule in soils to raise the availability of mineral nutrients that are essential for crops, by lowering soil density, reducing soil salinity and the effects of suspended particles in soil which may hinder plant growth.