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作 者:李晓光[1] 赵林萍[2] 刘艺杉[1] 张自和[3]
机构地区:[1]北京克劳沃草业技术开发中心,北京100029 [2]中国农业科学院农业资源与农业区划研究所,北京100081 [3]兰州大学草地农业科技学院,甘肃兰州730020
出 处:《草业学报》2006年第6期70-76,共7页Acta Prataculturae Sinica
基 金:兰州大学重点课题建设(820004);中国农业科学院科研基金项目资助
摘 要:以北京地区高尔夫球场球道常用的草地早熟禾为研究对象,采用田间试验和实验室内分析相结合,研究施肥对坪草生长、质量表现的影响。结果表明,草地早熟禾在不同养分处理下,草屑积累量显著不同。增施P、K肥料能提高草坪颜色、均一度,降低夏季草坪褐斑病的危害;增施N肥,也可以增强草坪颜色,但降低草坪的均一度,夏季易受病害影响。不同养分处理草地早熟禾坪草组织N、P、K养分含量随季节的变化趋势相近,且变化幅度不大,草屑中N、P、K养分年带出量的顺序为N>K>P,N、K的带出量以夏末秋初最多,P的带出量多集中在夏季,不同养分处理中养分年带出量差异显著。This study of P. pratensis in a golf course lane in the Beijing area used a field test combined with laboratory analysis. The objective was to study how fertilizer influenced quality and growth of P. pratensis, The main results are as follows : P. pratensis is under the circumslances that different nutrients are dealt with, differents in the grass crumbs accumulation amount are remarkable. Fertilizing with P and K fertilizer raised turfgrass color, regularity, and reduced the danger of summer turfgrass brown patch disease. Fertilizing with N strengthened lawn color but reduced regularity, and increased disease in summer. Under different nutrient regimes, N, P and K content of Kentucky bluegrass changed a little but the range of variation was not big with seasons. N, P and K content of grass crumbs was in the order N〉K〉P. N and K nutrient content was greatest at the beginning of autumn and late summer each year while that of P was greatest in summer. Under different nutrient regimes, the amount of nutrient taken out in erumbs was significantly different each year.
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