Characteristic of sulfur absorption of high oil maize, high starch maize and effect of sulfur application on its yield and quality

Characteristic of sulfur absorption of HOM,HSM and effects of sulfur amount applied on their kernel quality and yield were studied.Results indicated that sulfur absorption in period before flowering was 57.53% of the total sulfur absorption.There was bigger sulfur accumulation strength after flowering.Sulfur absorption per hectare of Changdan26,Yedan13,Gaoyou1 was 34.50,34.92,32.46 kilogram,respectively.Yield could be increased,and kernel quality improved after sulfur fertilizer applied.Applied 22.5 kilogram sulfur per hectare made oil percentage and protein content of kernel increased 9.05% and 6.88% than Sck(not applied sulfur fertilizer),respectively;protein quality improved,while starch content in kernel was little decreased.When sulfur fertilizer added to 90 kg/hm 2 (S 2),there was some increase in oil percentage and protein content of kernel,and zein in protein increased ,protein quality decreased.