不同锌肥对夏玉米生长发育及产量的影响初报

摘要

Effects of using Zn (ZnSO4,chelated zinc from America(F-Zn),EDTA-Zn) on the growth and yield of maize were studied. The results showed that the treatment with zinc compared to no zinc applied (CK) had advantages in the number of secondary roots,dry weight of plant,ear diameter,ear length and 100- kernel weight of maize. The maize bald length was shortened with zinc. The yield of maize with Zn-SO4,F-Zn,EDTA-Zn increased by 4.13%,6.13% and 5.56% than CK respectively,and tasselling and silk-ing stage were both 4,4,5 days in advance respectively,too.%研究了普通硫酸锌（ZnSO4）、国外螯合锌（F-Zn）、自制EDTA-Zn对玉米生长发育和产量的影响，结果表明：与对照处理相比，各施锌处理提高了玉米的次生根条数、单株干物重、玉米穗长、穗粗、百粒重，使玉米果穗秃顶缩短。施用ZnSO4、F-Zn和自制EDTA-Zn处理的玉米产量较对照处理的分别提高了4.13%、6.13%、5.56%，并使得玉米抽雄期和吐丝期分别提早了4、5、5d。