00280nam a22000977a 4500041001200000082001900012100004400031245003700075260006200112300000800174  aEnglish  a631.42bAGA/SA  aAgarwal, R R aYadav, J S PaGupta, R N  aSaline and alkali soils of India  aNew DelhibIndian council of agricultural research c1982  a286