Effects of tillage practices on maize yields

C. O. Leong

Abstract

Different sequences of ploughing during land preparation were evaluated. Three rounds of ploughing were tested against two rounds in maize cultivation, together with two ploughing depths of 40 cm and 50 cm. The results indicated no significant yield differences among treatments tested. However, in terms of kilograms of maize produced per ringgit cost of land preparation, two rounds of ploughing resulted in significantly higher yields at 34.28 kg compared with 19.73 kg for the check (disc ploughing-disc ploughing-rotovation sequence). Ploughing depths did not affect yield. As such, the recommended land preparation practice would be one round of disc ploughing up to 40 cm depth followed by one round of rotovation.

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