Abstract: The misuse and excessive use of fertilizers resulted in the loss of soil sustainability and a declined productivity, have increased the need of use of Effective Microorganisms Technology (EM) as an alternative to such practices to meet the future nutritional requirements of the people. This study aimed at appraising the effects of EM on Leaf Area (LA) and Photosynthesis (PH) of vegetable cabbage comparatively to Nitrogen (N) and Phosphorus (P) fertilizers. Results showed an increased leaf area for treatments with EM, while others demonstrated its reduction. Significant among treatments was recorded with p<0.05. Likewise, EM has improved photosynthesis. This suggested that EM improve plant yield and quality, resulting in a fulfillment of a sustainable agriculture.