Evaluation of Herbicides on Persistence and Soil Fertility

As herbicides play an important role in agriculture, their use in agricultural crops is increasing throughout the globe. Optimum temperature, moisture and organic matter in soil provide congenial environment for the break down or retention of any pesticide added in the soil. The length of time a herbicide remains active in soil is called "soil persistence," or "soil residual life". The persistence of herbicide in the soil is determined by the degree of its adsorption, the mobilization and the degradation. This book is written with the objective to Evaluate effect of pretilachlor, penoxsulam & pyrazosulfuron herbicides on persistence and yield of paddy grown on a Vertisol. This book consist the following chapters-Abstract, Introduction, Review of Literature, Materials Na Methods, Results, Discussion, Summery and Conclusion and References.