Indexation of Soil Physico-Chemical Parameters and Fertility Status of Soils of D.G. Khan, South Punjab (Pakistan) in the Light of Climate Change Scenario

Abstract

Ever increasing population and urbanization are the major threat to food security. Therefore, it is inevitable to use the scarce resources in an efficient manner. Further the application of different fertilizers prior considering the actual prevailing fertility status of soil and the nutrients requirements of upcoming crops may result permanent soil health issues. In order to meet the food needs of the nation we shall have to enhance the yield per unit area. Hence, a survey was conducted for the evaluation of the fertility status of Dera Ghazi Khan for the execution of recommendations regarding balanced use of fertilizers. Previous five years soil analysis data of 45 villages of Dera Ghazi Khan exhibited the average pH of 8.12, Electrical conductivity of 4.23 dSm^-1, about 99.3% soils were low in organic matter (<0.86%), and 07% soil have medium range of Organic matter (0.867 to 1.29), 81.5, 15.5% and 3% soils were found in poor, medium and adequate quantity with respect to available phosphorus. About 36.9%, 28.1% and 35% soils were found in poor, medium and adequate range of available potassium. The results indicated that the majority of the soil of Dera Ghazi Khan District was found to be normal and is good for the growth of different crops.