FEATURE NITROGEN NEEDS BY DEAN PETERSON CONTRIBUTING WRITER Calculating nitrogen release a multifaceted process t's imperative that enough nitrogen be available during a crop's peak uptake period. This generally begins three to four weeks after full-season crops are planted, and this period of rapid growth normally lasts for another three to four weeks. I Organic fertilizers release nitrogen more slowly than chemical fertilizers and that gives them an advantage when it comes to meeting crop needs during peak uptake. " When you're putting most of it down at planting, organic products tend to match that four- to eight-week window better than commercial fertilizer, " said Bruce Hoskins, 18 SPRING 2023