不同N素形态及其不同水平对黄瓜幼苗叶片生理指标的影
响
张志;翟瑞常;张东向
【期刊名称】《安徽农业科学》 【年(卷),期】2009(037)030
【摘要】[Objective] The aim was to study effects of different nitrogen forms and different levels on leaf physiological indexes of cucumber seedling, and provide some reference for using N fertilizer scientifically and reasonably, for enhancing cucumber yield and improving cucumber quality. [Method] Taking Dayesan cucumber as material, pot experiment was tested in solar greenhouse, there were 16 treatments with 3 N fertilizers, such as CO(NH_2)_2, NaNO, and NH_4HCO_3 under the concentrations of 200, 300, 400, 500 and 600 kg/hm~2, and the control that was without N fertilizer. [Result] When the concentration of NH_4HCO_3 was 600 kg/hm~2, the chlorophyll content in cucumber leaf was highest, reached to 2.37 mg/gFW. When CO(NH_2)_2 concentration was 500 kg/hm~2, the soluble sugar content was highest, and 9.82 mg/gFW, when 300 kg/hm~2, the content of Vc reached to 0.563 2 mg/100 g. The concentrations of 3 N fertilizers all were 600 kg/hm~2, the nitrate N contents were 0. 18% , there were different effects of N fertilizer under different levels on photosynthesis intensity of cucumber seedling. When the concentration of CO(NH_2)_2 was 400
kg/hm~2, the respiration intensity was strongest, reached to 0.128 mg/(dm~2·h). [Conclusion] Urea was the more suitable fertilizer for growth of cucumber seedlings.%[目的]研究不同N素形态及其不同水平对黄瓜幼苗叶片生理指标的影响,为科学合理地利用氮肥,提高黄瓜产量和改善黄瓜品质提供参考.[方法]以大叶三黄瓜为试验材料,于日光温室内进行盆栽试验,用尿素、NaNO_3NH_4HCO_33种N肥以200、300、400、500和600 kg/hm~2施肥水平进行16个处理,以不施肥为对照处理.[结果]当NH_4HCO_3使用量为600 kg/hm~2时,黄瓜叶片中的叶绿素含量达到最大值,为2.37 mg/gFW;当尿素的使用量为500 kg/hm~2时,黄瓜幼苗叶片中可溶性糖含量最高,达9.82 mg/gFW;当尿素使用量为300 k异/hm~2时,Vc含量最高,为0.563 2mg/100 g;当3种N肥的使用量都为600 kg/hm~2时,黄瓜幼苗叶片硝态N含量均达到0.18%;施用N肥对黄瓜幼苗叶片光合作用强度在不同水平有不同的影响;当尿素使用量为400 kg/hm~2时,呼吸作用强度最强,达0.128mg/(dm2·h).[结论]尿素是更适合黄瓜幼苗生长的肥料. 【总页数】3页(14660-14661,14666) 【关键词】N肥;黄瓜;生理指标 【作者】张志;翟瑞常;张东向
【作者单位】黑龙江八一农垦大学,黑龙江,大庆,163319;齐齐哈尔大学生命科学与工程学院,黑龙江,齐齐哈尔,161006;黑龙江八一农垦大学,黑龙江,大庆,163319;齐齐哈尔大学生命科学与工程学院,黑龙江,齐齐哈尔,161006 【正文语种】中文 【中图分类】S642.2
【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_journal-anhui-agricultural-sciences_thesis/020122174266.html 【相关文献】
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不同N素形态及其不同水平对黄瓜幼苗叶片生理指标的影响
