EFFECT OF VARIETIES AND SOWING WINDOWS ON PRODUCTIVITY AND NUTRIENT UPTAKE OF FODDER OAT: EFFECT OF VARIETIES AND SOWING WINDOWS ON PRODUCTIVITY AND NUTRIENT UPTAKE OF FODDER OAT. J. Res. ANGRAU. 2026;54(2):22-29. doi:10.58537/jorangrau.2026.54.2.04