CPM: FERTILIZERS AND THEIR USES

This unit is about the types of organic fertilizer and chemical fertilizers, the role of each essential and non-essential elements in crop nutrition, method of determining fertilizer needs of crop, methods of fertilizer application, symptoms of deficiency of various types of fertilizers, method of calculating fertilizer needs of crops, principles of effective utilization of fertilizers were discussed. Also soil reaction as it relates soil pH and its correction were treated in this unit.