Effect of nitrogen levels of hybrid and high yielding varieties of rice under lowland ecology of eastern Madhya Pradesh, India

摘要

In field trials at Raipur, Madhya Pradesh in 1993-95, rice hybrid 6201 and high-yielding cv. Kranti and R320-300 were given 60, 120 or 180 kg N/ha. Grain yield averaged 5.5, 5.1 and 5.9 t/ha in the genotypes as listed, and 4.9, 6.1 and 5.6 t with increasing N rate.