山东农业科学2013，Vol.45Issue(8)：94-96,3.
不同氮素水平对烟台地黄瓜生长、产量和土壤有效氮的影响
Effects of Different Nitrogen Levels on Growth and Yield of Yantai Ground Cucumber and Soil Available Nitrogen
摘要
Abstract
The plot experiment was conducted in field to study the effects of different nitrogen application rates on growth,yield,economic benefit and soil available nitrogen of Yantai Ground cucumber.The results showed that appropriate nitrogen application rate had significant positive role in stem diameter and internode length of cucumber.The chlorophyll content of cucumber leaves increased significantly with the increase of nitrogen application rate,and their correlation coefficient was 0.9744.Yield and economic benefit of cucumber increased gradually with the increase of N application rate and those of the 3rd treatment was the highest.That was to say,the.hightest yield was 77 333 kg/hm2 and the hightest economic benefit was 301 318.3 yuan/hm2under the treatment with nitrogen application rate as 460.7 kg/hm2.The soil available nitrogen content increased with the increase of nitrogen application rate,and their sighnificantly positive correlation coefficient was 0.9580.关键词
氮素/烟台地黄瓜/生长/产量/经济效益/土壤有效氮Key words
Nitrogen/Yantai Ground cucumber/Growth/Yield/Economic benefit/Soil available nitrogen分类
农业科技引用本文复制引用
刘婷婷,孙洪祥,于立芝,王学芬..不同氮素水平对烟台地黄瓜生长、产量和土壤有效氮的影响[J].山东农业科学,2013,45(8):94-96,3.基金项目
烟台市科技发展计划项目(2009215) （2009215）
