Pengaruh Pemberian Fungi Mikoriza Arbuskula (FMA) Terhadap Pertumbuhan dan Hasil Tanaman Pakcoy (Brassica rapa L.) di Tanah Podsolik Merah Kuning

Abstrak

Pakcoy (Brassica rapa L.) plays a strategic role as a food and health ingredient for the Indonesian people, but the high gap between national production and domestic demand requires efforts to expand agriculture, particularly on potential alluvial land in West Kalimantan. This study aims to evaluate and determine the optimal combination dose of biochar and Arbuscular Mycorrhizal Fungi (AMF) on pakcoy growth parameters and yield on Podzolic Red-Yellow soil. This study was conducted in Jawa Tengah Village, Ambawang District, Kubu Raya Regency from May to July 2025. The research method was a Randomized Complete Block Design (RCBD) with a single factor of AMF dosage consisting of six levels: F0 (control), F1 (10 g/plant), F2 (15 g/plant), F3 (20 g/plant), F4 (25 g/plant), and F5 (30 g/plant). Each treatment was replicated four times with 3 sample plants per replication, resulting in 72 plants total (6×4×3=72). Parameters measured included plant height, number of stems, fresh weight, and root volume. Results showed that AMF application had a highly significant effect (p<0.01) on the number of stems, fresh weight, and root volume, but no significant effect on plant height. Treatment F4 (25 g/plant) yielded the best results for plant height (32.25 cm) and number of stems (13.25 stems), while F5 (30 g/plant) produced the highest fresh weight (164.50 g) and root volume (9.75 mL). These findings indicate that AMF at dosages of 25–30 g/plant can effectively enhance pakcoy productivity on acidic, nutrient-poor soils