Correlation between lycopene content in tomato fruits and in the organic soil with straw (ORGWS) for cultivar 93 (a) and between lycopene content in tomato fruits and in the organic soil without straw (ORG) for cultivar 45 (b). Lycopene content for cultivar 93 grown in the organic system with straw is negatively correlated with soil content. Lycopene content for cultivar 45 grown in the organic system without straw is negatively correlated with soil content.