Abstract
Interactive effect of sodicity and N levels on growth and nutrient concentration of two wheat varieties was studied in a greenhouse experiment. Exchangeable Na levels ranging from 1.1 to 56.4% were developed by treating soil with NallCOy Uiva nitrogen was applied @ 0, 80, 160 mg/kg soil. Grain and straw yield and K concentration of leaves decreased and that of Na increased in both varieties with increasing sodicity. Reduction in grain and straw yeilds at ESP 38.5 and above was more pmnounced in Rawal-87 than Pak-81. Nitrogen levels increased dry matter production by partly alleviating the advene effect of sodicity. Gradient in term of Na and K and Na/K ratio was low in yound leaves and high in older ones. Nitrogen application in wheat helped in maintaining high K concentration in young leaves of wheat.
M. Yasin* . (1991) INTERACTIVE EFFECT OF SODICITY AND NITROGEN ON YIELD AND CHEMICAL COMPOSITION OF TWO WHEAT VARIETIES, The Journal Soil & Environment , Volume 6, Issue(1-2).
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