Abstract
This research aimed to know the effectiveness of macro compound NK fertilization on growth and yield of corn. The experiment was conducted in dryland of Banjararum Village, Singosari Subdistrict, Malang Regency on dry Season 2016. This experiment was using experimental plot 6 m x 4 m and it was designed in randomized block with 6 combinations of fertilization, and repeated 4 times, namely: (1) A (0 kg Urea/ha + 0 kg SP-36/ha + 0 kg Ponska/ha + 0 kg NK/ha), (2) B (300 kg Urea/ha + 50 kg SP-36/ha + 200 kg Ponska/ha + 0 kg NK/ha), (3) C (300 kg Urea/ha + 50 kg SP-36/ha + 0 kg Ponska/ha + 200 kg NK/ha), (4) D (275 kg Urea/ha + 50 kg SP-36/ha + 0 kg Ponska/ha + 300 kg NK/ha), (5) E (250 kg Urea/ha + 50 kg SP-36/ha + 0 kg Ponska/ha + 400 kg NK/ha), and (6) F (225 kg Urea/ha + 50 kg SP-36/ha + 0 kg Ponska/ha + 500 kg NK/ha). The results showed that macro compound NK fertilization is giving 500 kg NK/ha with 225 kg of Urea/ha and 50 kg SP-36/ha (treatment of F) obtained the highest yield than other of 11,2 t/ha dry seeds with the profit of corn farming IDR. 1,905,000 per hectare.
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