Dynamics of Micronutrient Uptake and Removal by Three Modern Runner Peanut Cultivars

Micronutrient fertilization is usually neglected by producers, especially for peanut, a crop that frequently grown in rotation systems due to its low perceived nutrient requirements. New peanut cultivars are able achieve high yields when under suitable conditions. However, recommendation tables dated and do not consider the need micronutrients. To support improvements these recommendations, this study quantified micronutrient demand (B, Cu, Fe, Mn, Zn) of three runner (IAC Runner 886, IAC 505, OL3) during biological cycle transport micronutrients pods kernels. The experiment was carried out randomized complete block with split-plot design nine replications. whole plots consisted cultivars, subplots comprised plant samplings (at 14, 28, 42, 56, 70, 84, 105, 126, 147 days after emergence (DAE)). These modern exhibited uptake accumulation but proportion Fe removed kernels lowest among all analyzed second-most-accumulated Mn. maximum requirement occurred around 84 DAE, 505 had highest (especially at later stages), followed OL3 886. Our results provide new insights into requirements demonstrate fertilizer programs cultivation.