Effect of Sowing Date on Growth and Yield of Summer Maize
Dong Xiuchun
Li Peng
Xu Yan
Abstract：Three sowing dates (June 4,12 and 20)were designed to study their effects on growth and yield of summer maize with Zhengdan 958 and Denghai 605 as materials.The results showed that the growth period,stem diameter,ear length and kernels per ear of the two varieties deceased with the postponing of so-wing dat,while the plant height,ear height and bald length increased.The dry weight per plant,ear diameter and kernels per row obtained the highest values on the middle sowing date.The row number per ear and effec-tive ear number had no significant differences between different treatments,and the 1 000 -kernel weight and yield were different between different varieties.In the southwest area of Shandong Province with Jining City as representative,the optimum sowing date for Zhengdan 958 was June 12,and the suitable sowing period for Denghai 605 was from June 12 to 20;the suitable harvest time for the two varieties was during the end of Sep-tember and the beginning of October.
Keywords：Summer maizeSowing dateYield
Publication Date：2015-08-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 39-41,45 )