Effect of Mixing Date Palm Leaves Compost (DPLC) With Vermiculite, Perlite, Sand and Clay on Vegetative Growth of Dahlia (Dahlia pinnata), Marigold (Tagetes erecta), Zinnia (Zinnia elegans) and Cosmos (Cosmos bipinnatus) Plants

Yusef Saleh Siraj Ali

Research Journal of Environmental Sciences 5 ( 7 ): 655 - 665 , 2011