Abstract
Two pot experiments employing three rice varieties viz., Basmati-385, Basmati-Pak and a mutant DM-25 were conducted on a Hafizabad series soil containing 0.4 and 0.7 mg kg-' B and Cu, respectively. In addition to basal dressing, B was applied t 0, 1, 2 and 5 mg kg-1; while Cu t 0, 2.5, 5 and 10 mg kg''. Whole shoot sampling of one plant was done at midattering stage (45 DAT), while grain yield of two plants was recorded at ' maturity. All the three varieties responded to Cu and B application substantially. Copper concentrations of 5.0, 6.0 and 6.5 mg kg'' in the whole shoot of the three varieties, respectively were associated with near maximum grain yield obtained at 4 mg kg'' soil applied Cu. Boron concentrations of .35, 40 and 29 mg kg-, in the whole shoot of the three varieties, respectively were associated with the near maximum grain yield obtained at 1.7 mg kg-1 B application to this soil.
M. A. Kausar, S. Alt , M. Molisin Iqbal. (2001) Copper and boron nutrition of three rice varieties on alkaline calcareous soils, The Journal Soil & Environment , Volume 20, Issue 3.
-
Views
310 -
Downloads
36
