Résumé:
Our study has treated the effects of six diffèrents substrats of agronomic parametrs of
growth and production of variety of vegetable tomato, valouro variety hybride lead by soiless
culture. The experimentation has been executed in ITCMI Zeralda. The substrat of fiber of
coconu is considerably above the number of flowers by plant. The final height of plant.
number of fruites by plant. While the substrats pozzolana has the abortion rate by plant. The
most weak.