摘要
以郑单958、丹玉801为材料,研究叶面喷锌、土壤施锌和土壤施锌+叶面喷锌对玉米物质生产及产量构成的影响,旨在探明辽东南地区锌对玉米的增产作用与施用方式。结果显示:在辽东南地区,施锌能够促进玉米产量增加,主要通过减少秃尖,增加行粒数与穗粒数,同时降低空秆率;施锌促进玉米干物质总量增加,但花后干物质积累比例与收获指数与不施锌处理无显著差异;郑单958与丹玉801对锌肥的响应相同;不同施锌方式比较,叶面喷锌处理对玉米产量无促进作用,土壤施锌与土壤施锌+叶面喷锌均能促进玉米干物质与产量增加,二者无显著差异。因此,从生产操作角度来看,在辽东南地区可选用土壤施锌方式来满足玉米对锌的需求。
A field experiment was conducted using maize hybrids Zhengdan958 and Danyu801,to understand the effect of Zinc fertilizer foliar spray,Zinc fertilizer soil application and Zinc fertilizer application ＋ foliar spray on maize dry matter production,accumulation and grain yield in southeast region of Liaoning province.The results showed,zinc foliar spray had little affects on maize yield,both Zinc fertilizer soil application and soil application ＋ foliar spray decreased unbarred length of ear and unbarred plant number,increased kernel number per ear,eventually improved maize grain yield. Zinc fertilizer improved maize dry matter（ DM） production and accumulation and increased DM accumulation amount,while has little effect on the ratio of postsilking DM amount（ Post DM） to total dry matter（ total DM） amount at maturity stage and harvest index（ HI）. There was no significant difference between the effects of soil application and soil application ＋ foliar spray on maize dry matter production and grain yield. Thus we can conclude that,in the southeast region of Liaoning,soil application Zinc fertilizer was an economical way to meet the maize demand for Zinc in the view of field production practice.
作者
张丽丽
付俊
杨海龙
谢文锦
樊叶
薛兵东
王璞
齐华
ZHANG Li-li;FU Jun;YANG Hai-long;XIE Wen-jin;FAN Ye;XUE Bing-dong;WANG Pu;QI Hua(DanDong Academy of Agricultural Science, Fengcheng, Liaoning 118109;Agronomy College of China Agricultural Universi- ty, Beijing 100193;Agronomy College, Shenyang Agricultural University, Shenyang , Liaoning 110866)
出处
《辽宁农业科学》
2018年第2期14-18,共5页
Liaoning Agricultural Sciences
基金
国家重点研发计划项目(2016YFD0300904-04,2017YFD300700,2017YFD0101103-2,2016YFD0300103,2016YFD0300801)
辽宁省中央引导地方科技发展专项(2016007021)
关键词
锌肥
玉米
产量
干物质积累
辽东南地区
Zinc fertilizer
Maize
Grain yield
Dry matter accumulation
South east region of Liaoning
