Nitrogen Sources and Rate for Drip Irrigated Polyethylene Mulched Chilli Pepper
Chilli pepper is the one of most important vegetable crops in Indonesia, and nitrogen is an essential macronutrient to support plant growth. This study was conducted to determine the best source of nitrogen (N) and its optimum rate for drip irrigated polyethylene mulched chilli pepper at. The study site is located at Tajur II Experimental Field of Center for Tropical Horticulture Studies Bogor Agricultural University, West Java, Indonesia, 250 m above the sea level (-6.6364580S, 106.8231460E) from January to August 2018. The experiments were organized in a factorial split-plot with sources of N fertilizer as the main plots (Urea, NPK, and ZA) and rates of N as a sub-plots (0, 115, 230, 345, and 460 kg.ha-1). The results showed that NPK fertilizer had the best source of N compared to other sources. The maximum yield of 9.01 kg per plot, or equivalent to 10.46 t.ha-1, was obtained with N fertilization at 265 to 295 kg.ha-1.
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