Abstract
In \>iew of potential B toxicity in some soils of Pakistan, pot culture studies were undertaken to investigate rice response to high soil B and the role ofCa in cmp tolerance to high soil B. At about 10 mg kg' available soil B, rice straw and grain contained about 120 and 12 mg B Kg', resulting in 46% and 22% soil, considered high by FAO, straw and grain would be likely to contain 21-75 and 5-9 mg B Kg' , respectively which could result in 7-13% depression in straw and 4-10% in grain yield. Rice was concluded to be less tolerant but more resistant to high B application than that of wheat. The resistance was attributed to Ca-B interaction in plant and soil while CaC03 had no effect on B uptake under low land soil conditions.
M.A. Kausar, , M. Tahir, A. Hamid* . (1991) RICE RESPONSE TO HIGH SOIL BORON AND ROLE OF CALCIUM IN BORON TOLERANCE OF RICE, The Journal Soil & Environment , Volume 6, Issue(1-2).
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