EFFECT OF SLUDGE OF WASTEWATER FROM THE TREATMENT PLANT ON THE GROWTH IN PEPPER (CAPSICUM ANNUUM.L) CULTIVATED ON TWO DIFFERENT GROUNDS

Abstract

The objective of this work is to study the effect of sewage sludge from the treatment plant wastewater (WWTP) of Beni Mellal on the culture of a market garden plant, pepper, on two different soils: soil of Maâmora and Beni-Mellal (Morocco). The results show that:

-For witnesses, pepper grows best on ground Maâmora sandy texture on the sandy clay loam soil of Beni Mellal, characterized by a compact structure reducing the germination rate and limiting the growth of the plant;

-Fertilization of the two types of soil by sewage sludge with increasing doses of the order of 10, 20, 30, 40 and 50% leads to a significant improvement of agronomic parameters pepper. The best results are obtained with a contribution of 50% of sludge yields were 150% and 80% in number and 70% and 100% by weight of fruit, respectively on soils Beni Mellal and Maâmora. The difference in yields in terms on fruit weight is explained by the rich soil of Beni Mellal on major elements and the role of mud in improving the physico-chemical properties of the soil.