Fourteen commercial corn hybrids were tested the yield potential in farmer field at Lansak city, Uthaitani province during rainy season on 2009. The objective was to compare the yield of corn hybrids when input high plant nutrition, level 14-7-13 of N-P-K Kilogram per rai. The result revealed that variety NK 48 gave high yield (1,248 Kilograms per rai) and the second PAC 339 (1,216 Kilograms per rai) whereas the public varieties NSW 3 and KU 4452 were 1,023 and 1,117 Kilograms per rai respectively. |