摘要
以黄金粮MY73(MY73)、安科985(AK985)和郑单958(ZD958)为材料,探讨滴灌密植技术对不同玉米品种叶绿素、叶面积和干物质积累量的影响。结果表明:AK985、MY73、ZD958在滴灌施肥(SF)和常规施肥(CF)两种方式下,吐丝期叶绿素含量SF较CF增加15.0%~18.1%、8.3%~12.8%、8.2%~9.0%,叶面积指数SF较CF增加5.0%~30.9%、22.7%~36.4%、10.9%~65.9%;成熟期,叶绿素含量SF较CF增加25.7%~35.4%、11.3%~17.4%、20.3%~26.5%,叶面积指数SF较CF增加20.9%~64.5%、35.5%~57.1%、21.6%~128.6%;地上部干物质积累量SF较CF分别平均增加19.5%、29.2%、28.2%。综上所述,滴灌密植技术能有效提高不同玉米品种的叶绿素含量和干物质积累量,减少生育后期植株叶片早衰,这为促进玉米生长发育、提高资源利用效率以及增加作物产量等提供了一定的参考依据。
Golden grain MY73(MY73),Anke 985(AK985)and Zhengdan 958(ZD958)were used as materials to explore the effects of drip irrigation and dense planting technology on the relationship between chlorophyll,leaf area and dry matter accumulation in different maize varieties.The results showed that AK985,MY73 and ZD958 under the two fertilization methods of drip irrigation fertilization(SF)and conventional fertilization(CF),during the spitting period,the chlorophyll content increased by 15.0%~18.1%,8.3%~12.8%and 8.2%~9.0%in SF compared to CF.The leaf area index increased by 5.0%~30.9%,22.7%~36.4%and 10.9%~65.9%in SF compared to CF.During maturity,the chlorophyll content in SF increased by 25.7%~35.4%,11.3%~17.4%and 20.3%~26.5%compared to CF.The leaf area index in SF increased by 20.9%~64.5%,35.5%~57.1%and 21.6%~128.6%compared to CF.The above ground dry matter accumulation of AK985,MY73 and ZD958 increased by an average of 19.5%,29.2%and 28.2%respectively in SF compared to CF.In conclusion,the drip irrigation and dense planting technology can effectively increase the chlorophyll content and dry matter accumulation of different maize varieties,and reduce early plant leaf senescence in the late reproductive stage,which can provide certain reference for promoting the growth and development of maize,improving resource utilization efficiency and increasing crop yield.
作者
王麒霖
余海兵
陈平
WANG Qilin;YU Haibing;CHEN Ping(Anhui Science and Technology University,Fengyang 233100,China)
出处
《金陵科技学院学报》
2024年第3期85-92,共8页
Journal of Jinling Institute of Technology
基金
安徽省财政农业科技成果转化项目(2021ZH015、2022ZH015)。
关键词
滴灌密植
玉米
叶绿素
叶面积指数
干物质
drip irrigation and dense planting
maize
chlorophyll
leaf area index
dry matter
