A field pot experiment was implemented in the Faculty of Food and Agriculture Farmin Al-Ain area, Abu Dhabi, United Arab Emirates, located in Lat. 24 N and Long. 56 E with 302m altitude during 2007/2008 over four months growing season. The experiment was done toevaluate fertilizer use efficiency, nutrient uptake, and yield of tomato (Solanum lycopersicum) asaffected by Pentakeep-V. The experimental design was a split-split plot design with applicationmethod as main plot (Foliar application (AM1), Soil application (AM2), and Application rate(0.01%(L1), 0.02% (L2), 0.04% (L3)) and time interval as sub plots (One week (W1), two weeks(W2), and three weeks (W3)).A control treatment with zero level (0.00%, L0) of Pentakeep-V wasincluded for comparison. Results showed all Pentakeep-V foliar treatments showed a significantly(P
Key words: Tomato, nutrient availability, foliar application, Pentakeep-V, 5-aminolevulinic acid,
nutrient uptake, rhizosphere.