首页> 外文OA文献 >Nitrogen based establishment and seedbanking potential of Kentucky bluegrass and perennial ryegrass in athletic fields
【2h】

Nitrogen based establishment and seedbanking potential of Kentucky bluegrass and perennial ryegrass in athletic fields

机译:田间肯塔基草和多年生黑麦草的氮基建植和种子库潜力

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

This dissertation outlines work done that investigated the potential of perennial ryegrass and Kentucky bluegrass to form useful, transient seedbanks in athletic field scenarios as well as speeding both spring and fall establishment of said species with increased nitrogen rates. Under the conditions of the studies, neither Kentucky bluegrass nor perennial ryegrass exhibited long term viability, i.e. seedbanking potential, when seeded to bare ground at three different seeding rates and two seeding schedules (one time vs. multiple). Seed was exhausted in the single seeding schedule as most seed germinated and little was left over to germinate later in the season or beyond. In the multiple seeding schedule, seed was available for germination later in the season and at the end of the traffic period, but did not carry over into the following year. It appeared that a true seedbank was not being formed; rather, multiple inputs were responsible for providing a source of fresh seed available for germination in the season of planting only. Turf managers would benefit from a single, early seeding followed by multiple overseeding events to provide germinable seed through the season. Increased nitrogen rates during establishment appeared to provide better color and cover for both species when used with normal seeding rates. Increasing both seeding rate and nitrogen level masked the effects of nitrogen. Further, increasing nitrogen rates beyond historically established norms during establishment did not reduce the traffic tolerance of either species.
机译:本文概述了已完成的工作,该工作研究了多年生黑麦草和肯塔基州早熟禾在田径场中形成有用的,短暂的种子库的潜力,以及通过增加氮含量来加快春季和秋季建立该物种的潜力。在研究条件下,当以三种不同的播种率和两种播种时间表(一次或多次)播种到裸地上时,肯塔基州的早熟禾和多年生黑麦草都没有表现出长期的生存能力,即种子库潜力。由于多数种子已发芽,因此在单一播种计划中种子已枯竭,几乎没有剩余可在本季节后期或更长时间内发芽。在多重播种计划中,种子可以在季节后期和运输周期结束时发芽,但并没有延续到第二年。似乎没有形成真正的种子库。相反,只有在种植季节,才能有多种投入来提供可用于发芽的新鲜种子。草坪管理者将从单一的早期播种中受益,然后进行多次播种,以在整个季节提供可发芽的种子。当以正常播种量使用时,在定植过程中增加的氮素比率似乎可以为两个物种提供更好的颜色和覆盖率。增加播种率和氮水平掩盖了氮的影响。此外,在建立过程中增加氮含量超过历史上建立的规范并没有降低任何一种的运输容忍度。

著录项

  • 作者

    Hoiberg, Andrew Hansen;

  • 作者单位
  • 年度 2012
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号