Planting distance and levels of fertilizer in white corn production under current climatic condition [manuscript]
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Date
2017
Authors
Rolan W. Gumangan
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Abstract
This study was conducted to determine the effet of row spacing and different fertilizer levels on the growth and yield of white corn production. three different row spacing: A1 (50cm), A2 (60cm) and A3 (75 cm) and five different fertilizer levels: no fertilizer (control), 60-30-30, 90-30-30, 120-60-60, 150-60-60 kg NPK ha-1 were evaluated following Split Plot Design in Randomized Complete Block Design (RCBD) with three replications.
Results revealed that there was no significant difference among row spacing in terms of kernel yield. ear length increased from 50 cm to 75 cm; however, the number of ear harvest per plot was decreasing. On the other hand, among fertilizer levels, highest kernel yield was found in 120-60-60 and 150-60-60 kg N, P2O5, K2O ha-1. Since 120 kg NPK ha-1 is lower than 150 kg, 120 kg NPK ha-1 is the best treatment. Plant fertilized with 120-60-60 kg NPK ha-1 also highest number of kernel per ear and heaviest 1000 kernel weight.