Effects of NPK and mycorrhizae on the growth, P uptake of soybean, and soil chemist in peatland, Pelalawan, Riau

Peatlands have great potential if they are used as agricultural lands. However, more attention is necessary for the management of water, soil pH, and the provision of nutrients. This research was conducted to determine the growth and P uptake of soybean plants on peatland as affected by fertilizer treatment and mycorrhizae application in soybean plants. The study was conducted in the peatland of Pelalawan Village, Pelalawan District, Pelalawan Regency, Riau using soybean plants cultivar Anjasmoro. The research was arranged in a complete randomized complete block design consisting of two factors. The first factor was fertilizer treated, comprising N1 (no fertilizer), N2 (150 kg ha^-1 compound NPK fertilizer), and N3 (300 kg ha^-1 compound NPK fertilizer). Meanwhile, the second factor was application of mycorrhizae comprising M1 (without mycorrhizae) and M2 (with mycorrhizae). Each treatment combination consisted of three replications. The data were analyzed with analysis of variance at a 5 confidence level and tested using DMRT test. The results showed that combination of mycorrhizae and NPK 300 kg ha^-1 gave the best effect from other treatement on the growth, P uptake of soybean and the soil chemist.