摘要
为了寻找日光温室番茄在隔沟灌方式下优化的水氮耦合模式,试验设置固定隔沟灌和交替隔沟灌两种灌水方式与推荐施氮量(N1)、2/3推荐施氮量(N2)两个氮素水平的完全组合,共4个处理,研究了不同沟灌方式和施氮量组合对日光温室番茄生长指标的影响。结果表明:不同处理,随着生育期的推进番茄的株高、径粗、主要根根长和主要根根数均逐渐增加,番茄叶片的叶绿素含量和根系活力均逐渐降低。交替隔沟灌更有利于番茄株高和径粗的生长。固定隔沟灌减小施氮量不利于番茄株高、径粗的增长和根系的发育。氮是影响番茄叶片叶绿素含量和主要根根数的主要原因。交替隔沟灌溉低肥处理T4可能具有较优化的耦合模式。
In order to search for the optimal water-and-fertilization pattern of greenhouse tomato under furrow irrigation,a study was conducted on quality of greenhouse tomatoes under different furrow irrigation and nitrogen coupling of patterns.The experiment was conducted by four treats which combined by the two kinds of irrigation（fixed furrow irrigation（FFI）and alternative furrow irrigation（AFI））and two levels of nitrogen（recommend nitrogen（N1）,2/3 recommend nitrogen（N2））.The results showed that：with different growth stages,the plant height,diameter,main root length and main root number of tomato increased gradually,but chlorophyll content and root activity of tomato decreased gradually.Alternate furrow irrigation was more conducive to the growth of high and diameter of tomato plant.Reduced the amount of nitrogen in fixed furrow irrigation were bad to tomato plant height,stem diameter and root.Nitrogen fertilizer was the main reason affecting chlorophyll content and main root number of tomato.The treat of low fertilizer under the alternative furrow irrigation may be has a kind of optimal water and nitrogen coupling model.
出处
《杨凌职业技术学院学报》
2017年第4期41-44,共4页
Journal of Yangling Vocational & Technical College
基金
杨凌职业技术学院自然科学研究基金项目(A2016007)
关键词
番茄
日光温室
隔沟灌溉
生态指标
生理指标
tomato
solar-greenhouse
furrow irrigation
ecological index
physiological index
