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- W2366222011 abstract "A randomized complete-block design of two nitrogen fertilizers(available nitrogen and slow-release nitrogen) and different fertilization methods(fertilization periods and proportion of slow-release nitrogen) were conducted to study yield factors and nitrogen utilization efficiency of corn(Zea mays L.) in different growth stages.Results showed that both available nitrogen and slow-release nitrogen could improve corn height and stem diameter in the stage of jointing and maturity,especially in ⅠC(20% slow-release nitrogen) treatment.Available nitrogen and slow-release nitrogen had no significant effects on corn stem to leaf ratio(P0.05).Nitrogen fertilizer could improve both fresh and hay yields of silage corn,especially the slow release nitrogen treatment of 150 kg·hm-2 with 30% slow release component(ⅠB).The fresh and dry yields of this treatment were 10.468×104 kg·hm-2 and 2.4487×104 kg·hm-2,respectively.The dry yield had a significant increase compared with the treatment of 180 kg·hm-2 slow-release nitrogen.Results also showed that both nitrogen apparent utilization and physiological efficiency were higher in slow-release nitrogen than in available nitrogen fertilization,and graded applied fertilization was better than only fertilizing once.In conclusion,moderate nitrogen slow release fertilizer could effectively improve silage corn yield and N use efficiency." @default.
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- W2366222011 date "2012-01-01" @default.
- W2366222011 modified "2023-09-24" @default.
- W2366222011 title "Yield of Silage Corn(Zea mays L.) and N Utilization Efficiency As Effected by Slow-Release Nitrogen" @default.
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