with the rice hybrid CORH2 (125 d duration) from
September 2001 to January 2002 on the wetland farm of Tamil Nadu Agricultural
Univerisity, Coimbatore (11°N, 77°E). The clay loam soil at the experimental site had
a pH of 8.3, its electrical conductivity was 0.54 dS m–1, organic carbon content was
8.2 g kg–1, available N (KMnO4-N) was 232 kg ha–1, Olsen-P was 32 kg ha–1, and
available K (NH4OAc-K) was 740 kg ha–1.