تلخیص
Foliar symptoms of salt injury resembling potassium ( K ) deficiency in mango orchards, irrigated with underground water, are very common along Batinah Coast of Oman.Twenty four soil, water and plant leaf samples collected from different orchards of the area were analyzed for different parameters important from salinity and plant nutrition point of view to identify the cause of injury. All the soils were calcareous having 8.4 to 27.3 % CaCOs, marginal salinity, alkaline reaction and a light to medium texture. Electrical conductivity (EC) of the various water samples ranged from 0.8 to 7.0 dS m'. All the mango plant leaf samples had adequate concentration of N, P and K except those 8 % which were found deficient in K. However, chloride was more than its critical range of 0.2-0.9 g kg' in 92 % of the plant leaf samples. Significantly positive relationship of chloride content (Y) in the plant leaf samples with EC of irrigation water (X) was explained by the power regression equation : Y = 0.026 X °" (r = 0. 76, p < 0.001, n = 24). Chloride accumulation at an excessive level with increasing salinity of irrigation water was also found associated with high Na:K ratio and K deficiency in the mango plant leav
P. Viswanath,, Rahmatullah, R.H.Oureshi . . (1996) CHLORIDE ACCUMULATION CAUSING LEAF INJURY IN MANGO ORCHARDS IRRIGATED WITH SALINE WATER, The Journal Soil & Environment , Volume 12, Issue (3-4).
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