6Van Hoom J. W. 1971 Qlity of irrigation water, limits of use and Prediction of long- term effeets. In: Salinity Seminar, Baghdad. Ir- rigation and Draninage Paper7, FAO, Rome : 117 - 135.
7Boyko H. Saline irrigation for agriculture and forestry. Dr WN. V. Publishers- The Hague. 1968:325.
