RISTA TOBIAS SAEFATU Pengarang Abner Tonu Lema, S. Si., M. Si Dosen Pembimbing 2 Ir. Agustinus Semang, M.Si Dosen Pembimbing 1 Abner Tonu Lema, S.Si., M.Si Penguji 2 Ir. Agustinus Semang, M.Si Penguji 1 Dr. Bernadete B. Koten, S.Pt., MP Penguji 2 Dr. Ir. Bambang Hadisutanto, MP Penguji 1 AHMAD FADIL Contributor

The study of different doses of mycorrhizae on phosphorus uptake and chlorophyll cantent of Desmanthus virgatus forage has been carried out in the forage area in kupang State Agricultural Polytechnic for 3 mounts. The purpose of this study was to evaluate phosphorus levels phosphorus uptake and chlorophyll content of Desmanthus virgatus by giving different mycorrhizae doses. This completely randomized design (CRD) consisted of 5 treatments, namely: P0 without mycorrhizae, P1: 5 grams of mycorrhizae/polybag, P2: 10 grams of mycorrhizae/polybag, P3: 15 grams of mycorrhizae/polybag, P4: 20 grams of mycorrhizae/polybag sequentially with four replicates. The variables were observed: phosphorus content, phosphorus absorption and chlorophyll content. The collection data were tabulated using ANOVA (Analysis Of Variance) in MS.Exel. The results of the analysis showed that the addition of different amounts of mycorrhizae had no significant effect on phosphorus uptake and chlorophyll content by phosphorus absorption was 17,23 (%), and chlorophyll content was 21,46 (mg/mL). However, the phosphorus content had a significant effect of 14,21 (%). Duncan’s test showed that P2 had a significant effect on forage phosphorus levels. It can be concluded that the dose of giving mycorrhizae has an effect on the phosphorus levels of Desmanthus virgatus with the best dose on 10 grams/polybag