Response of growth and production of sweet corn plants on ex-cane soil.

Currently, the commodity that has the potential to be profitable, especially before the new year is sweet corn. One of the factors causing the low productivity of sweet corn is the low availability of nutrients and poor soil structure due to improper soil management. Currently, many soils are experiencing a decline in fertility due to improper soil management with the use of amines, especially on sugarcane. Therefore, we tried to research the response of sweet corn plants on former sugarcane plantations. The research was conducted in the Mojosari experimental garden, Mojokerto, East Java, with an altitude of ± 50 m above sea level. This experiment consisted of 2 treatment factors. The first treatment factor was 3 treatments of nitrogen, phosphate and potassium as macro fertilizer and the second factor was 4 treatments with the addition of liquid supplementary fertilizer, using 3 replications. The highest production of sweet corn per plot was fertilized with 1 recommended dose of macro nitrogen, phosphate and potassium (Urea 375kg; Super Phosphate-36 250 kg and Potassium Chloride 62,5 kg/ha) plus liquid supplementary fertilizer at a dose of 4 ml per liter (per week). The highest yield parameters of sweet corn shavings were plants fertilized with 1 recommended dose of nitrogen, phosphate and potassium plus liquid supplementary fertilizer at a dose of 8 ml per liter of water. The highest RAE was in plants fertilized with 1 recommended dose of nitrogen, phosphate and potassium plus liquid supplementary fertilizer at content of 7.61 % N, 2.21% P2O5 and 2.03% (K2O), at a dose of 4 ml per litre. [ABSTRACT FROM AUTHOR]