Effect of sowing methods and spacings on growth and yield attributes of spring maize (Zea mays L.) in Parbat, Nepal
2025
Tiwari, Padmawati | Karki, Rubina | Tiwari, Susan | Khatri, Namuna | Subedi, Anusha
The study was conducted in Phalewas Municipality, Parbat district, Nepal to assess the effect of two sowing methods (ridge bed and raised bed) and four plant spacings (60×15 cm, 60×20 cm, 60×25 cm and 60×30 cm) on growth and yield characteristics of spring maize for improving the maize yield. This experiment aimed to identify adequate sowing method and optimum spacing using a randomized complete block design with three replications. Results of this study showed that yield attributing characteristics per plant was significantly (p<0.05) impacted with decrement in plant spacing up to 60×15 cm. Likewise, number of cobs per plant, ear length, ear circumference, number of kernels per row, grains per cob was found significantly at par up to 60×20 cm spacing but significantly (p<0.05) higher than 60×15 cm. 60×20 cm spacing was found to have the highest impact on biometrical as well as yield attributes. The grain yield (6.53 Mt/ha) was significantly (p<0.05) higher at 60×20 cm than at 60×25 cm and 60×30 cm but at par with 60×15 cm. There was no discernible effect of the sowing method on the metrics of grain yield between ridge bed and raised bed sowing. However, both bed sowing methods significantly (p<0.05) improved the grain yield of maize (5.78 Mt/ha), compared to the farmer's practice in Parbat district. Therefore, this study suggested that farmers of Parbat can combine 60×20 cm plant spacing with bed sowing methods to maximize the production of maize.
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