Enhancing crop water productivity to ameliorate groundwater decline
Increased use of fresh water supplies in agricultural and non-agricultural activities in the past few decades has caused an alarming rate of groundwater depletion in many regions of the world. This threatens the sustenance of crop production and the ensuing food security. There is an urgency to look for measures that sustain current levels of crop yields with reduction in soil water evaporation component of hydrological balance during cropped and non-cropped periods. This article gives an overview of management interventions at field scale to enhance water productivity in cropping systems perspective that would help to ameliorate groundwater decline.