Fertilizer research

, Volume 17, Issue 2, pp 189–196

Growth, yield components and micronutrient nutrition of field-grown maize (Zea mays L.) as affected by nitrogen fertilization and plant density

  • V. B. Ogunlela
  • G. M. Amoruwa
  • O. O. Ologunde
Article

Abstract

Growth and yield components in field-grown maize (Zea mays L.) were enhanced by nitrogen fertilization ranging from 50 to 200 kg N ha−1. Ear diameter, kernel depth, grain: stover ratio, number of ears plant−1, plant height and dry matter production increased as N fertilization rate was increased up to 100 or 150 kg N ha−1. Tasselling in maize was hastened by N fertilization. Increasing plant density from 25000 to 75000 plants ha−1 increased plant height, dry matter production and delayed tasseling but reduced ear diameter, kernel depth, grain: stover ratio and number of ears plant−1. Increased N supply and plant density had no influence on the concentrations of Mn, Zn, Cu, and Fe in ear leaf; except that Mn concentration increased as N fertilization rate was increased up to 150 kg N ha−1. Nitrogen × plant density interactions on the concentrations of the micronutrients in maize ear leaf were not significant.

Key words

Zea mays L. nitrogen fertilization plant density yield components growth micronutrient nutrition 

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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • V. B. Ogunlela
    • 1
  • G. M. Amoruwa
    • 1
  • O. O. Ologunde
    • 1
  1. 1.Department of AgronomyAhmadu Bello UniversityZariaNigeria
  2. 2.Institut für Pflanzenbau und PflanzenzüchtungUniversität KielKiel 1FRG

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