Pengaruh Fungsi Mikoriza Arbuskular (FMA) dan Dosis Pupuk NPK terhadap Hasil Bawang Merah di Tanah Aluvial

Abstrak

Alluvial soil holds great potential for shallot (Allium ascalonicum) cultivation, however its unfavorable physical and chemical characteristics, such as nutrient deficiencies and low permeability, present major limiting factors. The inoculation of Arbuskular Mycorrhizal Fungi and balanced NPK fetrilization offer strategic alternative solutions to enchance nutrient and water uptake efficiency under environmental constraints. This study aims to examine the effect of mycorrizhal inoculation and varying doses of NPK fertilizer on the yield of shallots in alluvial soil. The main plot consisted of mycorrizal treatments (non-mycorriza and with mycorriza) while the subplots comprised different doses of NPK (650 kg/ha, 550 kg/ha and 450 kg/ha). The results demonstrated tha the interaction between mycorrizal inoculation and NPK fertilizer application significantly influenced the physiological parameters amd yield components of shallot. The combination of mycorrizal application and 550 kg/ha of NPK fertilizer proved to be the best treatment, effectively increasing fresh tuber weight per clump and relative growth rate (at 21-28 HST and 28-35 HST)