Research Article
Effects of Different Nitrogen Fertilizer Levels on Sunflower Growth and Yield Attributes
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Unand Limau Manis, 25163 Padang, Indonesia
Basil T. Ongor
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Unand Limau Manis, 25163 Padang, Indonesia
Denis Bandushubwenge
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Unand Limau Manis, 25163 Padang, Indonesia
Ndihokubwayo Soter
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Unand Limau Manis, 25163 Padang, Indonesia
Shabani Felix
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Unand Limau Manis, 25163 Padang, Indonesia