草业科学2017，Vol.34Issue(7)：1516-1521,6.DOI:10.11829/j.issn.1001-0629.2016-0490
氮肥对沙地燕麦生长特性及产量的影响
Effect of nitrogen fertilizer application on growth characteristics and yield of oats in sandy soil
摘要
Abstract
In the present sandy, the optimum amount of nitrogen fertilizer was determined in the grassland of the Pearl River in Tongliao City, Inner Mongolia.The optimum amounts of fertilizer at the seedling, tillering, jointing, and heading stageswere 15%, 40%, 25%, and 20%, respectively, of the total fertilization.The number of tillers, plant height, stem diameter, leaf area, biomass, and other growth and yield indices were measured for 0 (CK), 70, 140, 210, and 280 kg·ha-1 nitrogen in an Avena sativa variety.The results indicated that topdressing 70~280 kg·ha-1 nitrogen fertilizer promoted the growth of aerial partsin sandy soil, with the best effect at 210 kg·ha-1 nitrogen fertilizer.The the yield of hay increased by 56.96%(P>0.05), 74.93% (P<0.05), 121.32% (P<0.05), and 99.58% (P<0.05) at nitrogen fertilization levels of 70, 140, 210, and 280 kg·ha-1, respectively, than that in the CK treatment.Therefore, in Tongliao City, Inner Mongolia, topdressing 210 kg·ha-1 of nitrogen fertilizer is the optimum dosage for the cultivation of oat plants.关键词
沙化草地/饲用燕麦/氮肥/生长特性/生物量/产量Key words
grassland desertification/oat feed/nitrogen fertilizer/growth characteristics/biomass/yield分类
农业科技引用本文复制引用
王乐,张玉霞,于华荣,郭园,朱爱民..氮肥对沙地燕麦生长特性及产量的影响[J].草业科学,2017,34(7):1516-1521,6.基金项目
内蒙古民族大学大学创新基金(NMDSS1624) （NMDSS1624）
内蒙古民族大学饲料作物工程中心开放课题项目(MDK2016019) （MDK2016019）
