Tomatoes

Tomatoes are among the most nutritionally demanding crops, and consistent, balanced fertility is the key to maximizing both yield and fruit quality. Whether grown in the field, under plasticulture, or within controlled greenhouse environments, tomato performance depends on healthy root systems, optimized nutrient ratios, and strong early frame development.

ISP’s tomato programs are designed to guide growers from transplant through harvest, integrating carbon-based soil enhancers, precise fertigation schedules, and foliar biostimulants to build healthier, more resilient plants. Our approach emphasizes calcium and magnesium management to reduce Blossom End Rot, while balancing potassium for color and flavor development. Regular tissue testing and pH management ensure that nutrient delivery remains efficient throughout the season.

From large-scale processing systems to high-value greenhouse crops, these programs provide detailed recommendations for achieving firm, flavorful fruit, strong plant structure, and reliable yields under a wide range of growing conditions.