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《Liaoning Agricultural Sciences》 2018-02
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The Effect of Zinc on Maize Dry Matter Production and Grain Yield in the Southeast Region of Liaoning Province

ZHANG Li-li;FU Jun;YANG Hai-long;XIE Wen-jin;FAN Ye;XUE Bing-dong;WANG Pu;QI Hua;Dan Dong Academy of Agricultural Science;Agronomy College,Shenyang Agricultural University;Agronomy College of China Agricultural University;  
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.
【Fund】: 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)
【CateGory Index】: S513
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