Root distribution pattern of some grass species in Black Clay soil in relation to their capability for controlling erosion

In a study conducted at AICRP on Dryland Agriculture, based on the root parameter of four grass species namely Vetiveria zizanioides, Cymbopogon martinii, Panicum maximum and Dichanthium annulatum suitable for growing as vegetative barriers for soil conservation the root dynamic model has been developed. It was observed that the root development model of these grass species in time and space could be described by logistic growth function. Since a close agreement was observed in the computed and observed root biomass density values, these equations can be considered valid for the region.