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Cultivation, cultivar, and topdressing moisture effects on settling of topdressing sand

机译:栽培、品种和表面处治水分对沉降的影响表面处治的沙子

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Abstract Two desirable traits consistent in emerging creeping bentgrass (Agrostis stolonifera L.) cultivars are increased canopy density and fine leaf texture. Although the former is often associated with reduced incorporation of applied materials into the turf system, the effects of the latter have not yet been characterized. Some practitioners believe these boundaries can be overcome by topdressing with a dried sand, which they propose settles differently than conventional moist sand. In 2018, two topdressing studies were conducted to evaluate incorporation of moist and dried topdressing sands when applied to six creeping bentgrass cultivars of varying textures into vertically mowed and uncultivated systems. Cultivars were topdressed with dried sand or with moist sand and then incorporated with one of two brushing systems. Across trials, neither brush consistently outperformed the other. A larger proportion of applied topdressing sand was retained by the vertically mowed system and was unaffected by the moisture content of sand. Less sand was retained by uncultivated systems, and the distribution of both sands changed significantly. For moist sands, finer‐textured cultivars, in general, corresponded with greater removal of coarse fractions and a greater retention of fine fractions. Therefore, we provide supporting evidence that topdressing into vertically mowed systems, regardless of sand moisture content, results in enhanced sand incorporation. When topdressing uncultivated, fine‐textured bentgrass putting green systems, however, practitioners could benefit from topdressing with dried sands.
机译:抽象的两个理想的特征一致新兴的bentgrass (Agrostis多茎目l .)品种树冠密度和增加细叶质地。与应用的公司材料到地盘系统,的影响后者尚未为特征。从业者相信这些界限克服用干砂,表面处治他们建议解决不同传统的湿沙。研究进行了评估公司潮湿和干燥的表面处治金沙时应用6爬bentgrass品种不同材质为垂直割和不文明的系统。砂或潮湿的沙子,然后合并与两个刷系统之一。无论是刷一贯表现其他。沙子被垂直修剪保留系统水分含量的影响沙子。系统和两个油砂的分布显著改变。细纹理应承担的品种,一般来说,与更大的粗分数和更大的保留好分数。证据表明,表面处治为垂直割系统,不管砂含水率,结果增强沙子合并。表面处治不文明的,细纹理bentgrass然而,果岭系统、实践者可以用干砂受益于表面处治。

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