Sewage Sludge and Inorganic Chemical Fertilization Modulate Rhizosphere Microbial Activity and Diversity in Kale and Spinach Cropping Systems
Sewage sludge is widely explored as an organic nutrient source, but its ecological effects on soil microbial communities remain context dependent. This study evaluated the effects of sewage sludge and NPK fertilizers on soil microbial populations associated with kale (Brassica oleracea L. cv. ‘GM Dari’) and spinach (Sp...