Easy with the N: why slow-release fertilizers can help you eliminate problems caused with turfgrass growth peaks

摘要

The American prairie was once lush in vegetation with no input from humans whatsoever. Intense microorganism activity and consistent turnover of plant and animal residue enabled prairie grasses to flourish. Undisturbed plants had extensive root systems that penetrated to depths of 30 feet or more. In total contrast, modem turfgrass culture is incompatible with the notion of perpetual and natural sustained plant growth. Unlike prairie grasses, turfgrasses must be regularly groomed for their aestheticappearance and as a cushioned surface for walking, running and playing. By focusing attention on optimizing root growth and soft microbial activity, it's possible for turfgrass managers to maintain a healthy tuff environment with a significant reductionof inputs.