YU Sihai,SONG Sansan,AN Shijie,et al.Effects of Different Fertilization Treatments on Leaf Growth,N and P Contents of Jujube[J].Northern Horticulture,2022,(05):53-59.[doi:10.11937/bfyy.20214014]
不同施肥处理对枣树叶片生长及N、P含量的影响
- Title:
- Effects of Different Fertilization Treatments on Leaf Growth,N and P Contents of Jujube
- Keywords:
- jujube; total nitrogen; total phosphorus; chlorophyll content; leaf area index; net photosynthetic rate
- 文献标志码:
- A
- 摘要:
- 以新疆阿拉尔市嫁接的四年生灰枣为试材，氮、磷肥均不施用为对照，通过随机区组设计，研究不同N（N1、N2、N3）、P（P1、P2、P3）水平组合施肥处理对枣树生育期内叶片叶绿素含量、叶面积指数、叶片净光合速率、多年生与新生枝条上叶片全氮、全磷含量的影响，以期为当地枣树合理高效施肥提供参考依据。结果表明：在不同施氮、施磷处理下，叶片叶绿素含量、叶面积指数以及叶片净光合速率随着枣树叶龄增加呈现增加的趋势，N3P3、N3P1及N1P3施肥处理下的叶片叶绿素含量高于其它处理。从整体来看，N1P3及N2P2施肥处理下叶面积指数随着枣树生育进程的发展，整体增长较好；随着枣树不断生长，与枣树初花期相比，末花期叶片净光合速率明显高于初花期净光合速率，N1P3施肥处理下的净光合速率最高；全氮含量为多年生>新生，全磷含量为新生>多年生。
- Abstract:
- Taking the grafted four-year-old grey jujube from Alar city of Xinjiang as the test material,the effects of the different N(N1,N2,N3),P(P1,P2,P3) level on leaf chlorophyll content,leaf area index,leaf net photosynthetic rate,the content of total nitrogen,total phosphorus of newborn and perennial leaves were studied by randomized block design,nitrogen and phosphorus were not applied for comparison,in order to provide a reference for local jujube tree fertilization.The results showed that leaf chlorophyll content,leaf area index and leaf net photosynthetic rate increased with the increase of leaf age under different nitrogen and phosphorus application treatments,and leaf chlorophyll content under N3P3,N3P1 and N1P3 fertilization treatments was higher than other treatments.On the whole,leaf area index under N1P3 and N2P2 fertilization increased well with the growth process of jujube.With the continuous growth of jujube trees,the net photosynthetic rate of leaves at the final flowering stage was significantly higher than that at the initial flowering stage,and the net photosynthetic rate was the highest under N1P3 fertilization treatment.The total nitrogen content was perennial than newborn,and the total phosphorus content was perennial than newborn.
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备注/Memo
第一作者简介：于四海（1997-），男，硕士研究生，研究方向为资源利用。E-mail:1518861703@qq.com.责任作者：支金虎（1978-），男，博士，教授，现主要从事植物营养与农业环境等研究工作。E-mail:zjhzky@163.com.基金项目：新疆生产建设兵团重大科技资助项目（2021AA005,2019AA004）。收稿日期：2021-09-28