Efektivitas Fungi Mikoriza Arbuskula pada Tanaman Singkong (Manihot esculenta) di Tanah Inceptisol Bogor (Effectiveness of Arbuscular Mycorrhizal on Cassava (Manihot esculenta) in Inceptisol Bogor)

Jurnal Ilmu Pertanian Indonesia (JIPI)
2022.07.04

Cassava is widely grown in Inceptisol.  As agricultural land, the soil has several problems, i.e., high soil acidity and slow permeability. However, the effectiveness of AMF on cassava has not been widely reported. This study aimed to determine the effect of AMF inoculants on the vegetative growth of cassava in Inceptisol. The AMF inoculants used were Gigaspora sp., Glomus manihotis and a consortium of Acaulospora tuberculate and Glomus rubiforme. The experiment was performed in a Randomized Block Design with eight treatments and three replications, i.e., M1 = G. manihotis, M2 = consortium of A. tuberculata-G. rubiforme, M3 = Gigaspora sp., M4 consortium of A. tuberculata-G. manihotis-G. rubiforme, M5 consortium of G. manihotis-Gigaspora sp., M6 consortium of A. tuberculata-G. rubiforme-Gigaspora sp., and M7 consortium of A. tuberculata-G. manihotis-G. rubiforme-Gigaspora sp., and  control  (as recommended dose of NPK fertilizers). In the AMF application treatment, 75% of the recommended NPK fertilizer was applied. A total of 50 AMF spores were applied to each cassava plant and maintained for eight weeks. The data were analyzed using the RStudio 4.1.1 program. The results showed that AMF application significantly increased the vegetative growth of cassava grown in Inceptisols, i.e., shoot and root dry weight, root length, P-uptake, and percentage of root infection.  Application of G.  manihotis and the consortium of A. tuberculata-G. rubiforme-Gigaspora sp. effectively increased cassava plants' growth for eight weeks in Inceptisol. The AMF application could save 25% on the use of NPK fertilizers.

Keywords: Acaulospora, cassava, Gigaspora, Glomus, fertilizer, mycorrhizal

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