Integrated Crop Management News

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Broadcast fertilization of phosphorus (P) and potassium (K) is a popular and low-cost fertilizer application method. A band application theoretically could further increase yield of row crops or reduce the optimum fertilization rate under some conditions. Concentrating these nutrients in bands could increase nutrient uptake in soils with unusually high capacity to fix P and K and when root growth is restricted by unfavorable soil conditions. Particularly with no-till or ridge-till management, deep banding also could increase nutrient uptake and yield compared with broadcast or banding with the planter when the soil surface layer becomes drier.

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Iowa State University



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