The substrate containing the compost made of sewage sludge and straw (SSRS) and peat (1:3, v/v) was found to be the most beneficial for pelargonium foliage, i.e. the number of leaves, their fresh weight and assimilation area.
The substrate containing the compost made ofsewage sludge and straw (SSRS) and peat (1:3,v/v) was found to be the most beneficial forpelargonium foliage, i.e. the number of leaves,their fresh weight and assimilation area.