不同基质下粤选1号匍匐翦股颖果岭草坪生长状况分析

范文编号:SP025 范文字数:10327,页数:21
摘        要
 广州地区秋季在沙基质上建植粤选1号匍匐翦股颖（Agrostis stolonifera L. cv. Yuexuan No.1）果领草坪，采用泥炭土与沙按照体积比0、1%、2.5%、5%、10%分别混合沙基质厚度5cm、10cm。测定成坪期果领草坪生物量、剪草量、草坪密度、根系长度、草坪色泽及成坪时间。结果表明，沙基质中混入泥炭土2.5%，基质物理性状适中，总孔隙度为33.26%、通气孔隙度为2.66%、持水孔隙度为30.6%、持水量为188.4g/kg；沙基质中混合泥炭土，有利于粤选1号匍匐翦股颖成坪；沙基质中混入泥炭土2.5%，混合土层厚10cm时，果领成坪时间39d，地上与地下生物量分别为4.02gDW/dm2和7.88gDW/ dm2，密度11.9株/cm2，草坪色泽深，草坪草剪草量大。
关键词：  粤选1号匍匐翦股颖  果领  泥炭土用量  草坪性状

 the Growth Conditions of Green Lawn of Agrostis stolonifera L. cv. Yuexuan No.1 in Different Matrix

Abstract：The green lawn of Agrostis stolonifera L.cv.Yuexuan No.1 was established in matrix of sand in the autumn in Guangzhou.  Peat was mixed with sand in accordance with volume ratio 0, 1%, 2.5%, 5%, 10% to thickness 5cm and 10cm respectively. The green lawn of biomass, weight of grass cutting, lawn density, root length, turf color and the time of the lawn completed were researched. The results show that the physical shape of matrix of the treatment of volume ratio 2.5% is moderate, the porosity is 33.26%, ventilation porosity is 2.66%, water porosity is 30.6%, water holding capacity is 188.4g/kg. It was benefit for Agrostis stolonifera L.cv.Yuexuan No.1 to be a lawn using peat mix with sand. Used peat and sand in accordance with volume ratio 2.5% and mixed layer thickness of 10 cm, turf grass growing time was 39d, the biomass of above and below ground reach 4.02gDW/dm2 and 7.88gDW/dm2 respectively, the lawn density was 11.9 strain/ cm2, turf color was deep, and the growth of turf grass was large.
Key words：Agrostis stolonifera L. cv. Yuexuan No.1; green lawn; dosage of peat;
 lawn characteristic

目        录
1前言 ……………………………………………………………………………… 1
2材料与方法 ……………………………………………………………………… 3
2.1材料……………………………………………………………………………… 3
2.2实验地概况……………………………………………………………………… 3
2.3草坪建植与管理………………………………………………………………… 3
2.4指标测定………………………………………………………………………… 3
3 结果与分析 ……………………………………………………………………… 5
3.1不同配方泥炭土混合土层物理性状、电导率及pH值 ………………………5
3.2不同基质对匍匐翦股颖果岭成坪期草坪盖度影响…………………………… 6
3.3不同基质对匍匐翦股颖果岭成坪期草坪密度的影响  ……………………… 6
3.4不同基质对匍匐翦股颖果岭成坪期草坪生物量的影响  …………………… 7
3.5不同基质对匍匐翦股颖果岭成坪期草坪根长的影响  ……………………… 8
3.6不同基质对匍匐翦股颖果岭成坪期草坪剪草量的影响  …………………… 9
3.7不同基质对果岭成坪期匍匐翦股颖叶绿素含量的影响………………………10
4讨论 ……………………………………………………………………………… 11
参考文献 ……………………………………………………………………………13
英文摘要 ……………………………………………………………………………15
致谢 …………………………………………………………………………………16
文档范文成绩评定表及答辩记录 …………………………………………17

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