EVARISTUS JERANAT Pengarang Dr. Bernadete B. Koten, S.Pt., MP Dosen Pembimbing 1 Ir. Thomas Lapenangga, MS Dosen Pembimbing 2 Abner Tonu Lema, S.Si., M.Si Penguji 1 Andy Y. Ninu, S.Pt., M.Si Penguji 2

This study aims to evaluate the effect of giving different of water volumes on nitrogen uptake, chlorophyll content and levels of forage organic matter Mini elephant grass (Pennisetum purpureum cv.Mott), which has been carried out in the Forage Farm and in the Holticutura Politani Kupang Industrial Technology Laboratory for 5 years. month (May-September 2020). This study were used a completely randomized design with 4 treatments 5 replications, namely P100%: giving 100% water, P75%: giving water 75%, P50%: giving water 50%, P25%: giving water 25%. The observed variable was. Nitrogen absorption of (g/polybag), chlorophyll content (mg/mL) and organic matter content (%). The analysis of variance showed that giving different water volumes had a very significant effect (P<0.01) on the organic matter content with an averageorganic matter content of 81.29%, had a significant effect (P<0.05) on nitrogen uptake with an average of 0.27 g/polybag, but there was no significant effect (P>0.05) on chlorophyll content (mg/mL) with an average of 12.53 mg/mL. The Duncan test shows that the organic matter level is in 50% water with an average of 83.58% and the lowest is in 100% water with an average of 78.96%, the highest nitrogen absorption uptake is in 50% water with an average of 50% and the lowest is found in water 100% with an average of 0.18%. It was concluded that giving different water volumes had an impact on nitrogen uptake, and forage organic matter levels but had no impact on the chlorophyll content of mini elephant grass (Pennisetum purpureum cv.Mott)