Bio-Drainage Technology
Bio-drainage removes excess soil-water through transpiration by trees. It is an option to prevent the development of waterlogged and saline soils especially in areas having no possibility of disposing saline drainage effluent. There are large areas with water stagnation due to seepage from higher elevation, surface disposal of urban and industrial effluents and floods during […]
Auger Hole Technology for Alternate Land Use System
An auger hole technology for raising forest and fruit tree plantation in salt-affected soils with sub-surface hardpan has been developed and standardized. By adopting this technology, state forest departments have successfully raised tree plantations on salt-affected village community lands, Govt. lands, adjoining roads, railway lines and canals etc. Pit cum auger hole technology is developed […]
Sub urface Drainage Technology
Sub surface drainage (SSD) is an effective technology for amelioration of waterlogged saline irrigated lands in India. The system consists of perforated corrugated PVC pipes, covered with synthetic filter, installed mechanically at a design spacing and depth below soil surface to control water table depth and drain excess water and salts out of area by […]
Gypsum Bed Technology for Poor Quality Water Management
About 25% of the groundwater resources used for irrigation in India are either saline or brackish or both. In states like Rajasthan and Haryana, 84% and 62%, respectively of the groundwater are of poor quality. Irrigation water standards used in the past have been too conservative for the monsoonal climate of the country. The institute […]
Gypsum for Reclamation of Sodic Soil
Following diagnostic procedures, application of 10-15 tons gypsum per ha is applied followed by mixing of surface (10 cm) soil. Before gypsum is applied, field leveled, bunded, irrigation water is applied to leach down the salts. About 2.07 Mha sodic soils have been reclaimed using gypsum application technology. The reclaimed area contributes around 16.60 million […]