Parveen Kumar

World agricultural scenario is changing rapidly due to inter-sectoral competition for freshwater use and climate change impacts. Productivity of agricultural land is now limiting with the problems of salinity, sodicity, secondary salinization and water-logging. This book addresses a wide range of issues related to genesis and rehabilitation of salt-affected soils. Several site-specific case studies on saline and sodic environment are described in detail by the leading researchers and experts specialized in the field of salinity. This book will serve as a knowledge bank for researchers and policy makers in management of salt-affected soils.

Tribological developments have played a pivotal role, in the conservation of materials and energy, and preservation of environment in various applications in day to day life. Friction losses and emission pose a serious problem to designers and engineers in automotive industry. Friction and wear losses in IC engines not only reduce its efficiency but also increase the emission level. In order to increase efficiency and to reduce emission, it is inevitable to develop alternative and appropriate solutions for reducing friction and wear in IC engine. This objective can be achieved by using an efficient material or a better lubricant or by adopting synergetic approach. Hypereutectic Al-Si alloys are suitable for a number of tribological applications in vehicles, like pistons, cylinder liners, compressor scrolls and engine blocks and in other different engineering fields. One of the main limitations on using aluminium high silicon alloys is the formation of coarse brittle phases under conventional solidification conditions. However, rapid solidification processing (RSP) with T6 sintering condition is very effective in limiting the coarsening of primary silicon due to high cooling rate.

Being part of the world leading milk producer country and also in which major population depends on milk for its protein requirement. Riverine buffalo (Bubalus bubalis) is a major milk producing species in many Asian and Mediterranean countries and its genetic improvement ranks high among agricultural research needs of these countries. Buffalo milk contains highest fat percentage compared to all milk producing animals. The motivation of the problem was looking for the genes involved in the milk fat synthesis during lactation.