The Effects of Different Nitrogen Doses on Silage Yield of Maize (Zea mays L.) Cultivars
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Date
2021
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Abstract
This study was carried out in the experimental field in Salihli district of Manisa province in 2015, aiming to determine the effects of different nitrogen doses (0, 4, 8, 12, 16, 20, and 24 kg N da-1) on silage yield and quality characteristics of maize cultivars (C-955, TK-6063, and Colosseus). The field experiment was designed in a randomized complete block (RCBD) with three replications. The effects of nitrogen doses on the silage yield components showed statistically significant differences. According to the results, the effects of different nitrogen doses on herbage yield (kg da-1), plant height, number of leaves, stem diameter, and ear ratio (%) were statistically significant. However, the effects of different nitrogen doses on the leaf ratio (%) and stem ratio (%) were not found statistically significant. The average value of herbage yield was between 7406.0 and 8880.1 kg da-1; the plant height of maize genotypes varied between 248.2 and 299.4 cm; the number of leaves per plant was between 11.4 and 14.3; stem diameter varied between 2.4 and 2.7 cm; ear ratio was between 27.1% and 31.0%.. Among the nitrogen doses used in the experiment, the optimum nitrogen dose in terms of silage yield was determined as 20 kg da.