Respon Pertumbuhan dan Hasil Tanaman Bawang Merah (Allium Ascalonicum L.) Akibat Pemberian Jenis Amelioran Dan Dosis Pupuk NPK

Abstract

This research aimed to know the effect of the ameliorant type and NPK fertilizer dosage as well as  their interaction on the growth and the result of onion (shallot). The experimental design used was Completely Randomized Design (RAL) of 3×4 factorial pattern with 3 repetitions. There are two factors that were studied, the first factor is ameliorant type which is consisted of 3 levels i.e.: without ameliorant, compost 200 g /polybag and manure 200 g/polybag, and the second factor of NPK fertilizer which is consisted of 4 levels i.e. without NPK, NPK 15 g /polybag, NPK 30 g /polybag and NPK 45 g /polybag. The allocation of ameliorant type did not significantly affect the observed parameters of plant height and number of tillers at age of 15, 30, 45 and 60 Days After Planting (DAP), the weight of wet and dry bulb of shallot. The dosage of NPK fertilizer had significant effect on the plant height at the age of 45 and 60 DAP and had no significant effect on the plant height at the age of 15 and 30 DAP, the number of tillers was very significant at the age of 30, 45, and 60 DAP and had no significant effect on the age of 15 DAP, while the weight of wet and dry bulb significantly affected. It means that there was no significant interaction between giving of ameliorant type and dosage of NPK fertilizer to all the observed parameters.