Selection of four types arbuscular mycorrhizal fungi in oil palm seedling planted in histosol soil
Arbuscular mycorrhizal fungi (AMF) arebeneficial microbes for plants, especially in theabsorption of nutrients and water from the soil.Some factors that influence the effectiveness of thisfungus are the suitability of the AMF species withtheir host plants and abiotic condition such as soilcharacteristics. Therefore, this study aims todetermine the type of AMF that produced the bestgrowth and nutrient uptake in oil palm seedlingsplanting in histosol soil. This study used a singlefactor treatment design consisting of 9 AMFtreatments, namely control without AMF (T1),given Glomus sp. (T2), Gigaspora sp. (T3),Entrophospora sp. (T4), Acaulospora sp. (T5), amixture of Glomus sp. and Gigaspora sp. (T6), amixture of Glomus sp. and Entrophospora sp. (T7),a mixture of Gigaspora sp. and Entrophospora sp.(T8), and a mixture of Glomus sp., Gigaspora sp.,Entrophospora sp., and Acaulospora sp. (T9). Eachtreatment was repeated five times. Theexperimental design used was a randomized blockdesign. In the AMF treatment, 500 spores perseedling were given when the seedlings weretransplanted from prenursery to the main nursery.The seedlings were kept in the prenursery for 3.5months and in the main nursery for nine months.The results showed that the type of mycorrhizaethat consistently produced better seedling growthand nutrients uptake compared to the control wereGlomus sp. (T2) and a mixture of Gigaspora sp.and Entrophospora sp. (T8), which supported bydata on plant height, number of leaves, shoot dryweight, and total nutrient uptake of N, P, K, Ca,Mg, and B