EFFECT OF ORGANIC AND INORGANIC SOURCES OF NUTRIENTS APPLIED ALONE OR IN COMBINATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annuus L.) / EFECTO DE FUENTES ORGANICAS E INORGANICAS DE SUSTANCIAS NUTRITIVAS APLICADAS EN PARTICULAR Y EN COMBINACIONES SOBRE EL CRECIMIENTO Y EL RENDIMIENTO DE GIRASOL (Helianthus annuus L.) / EFFET DES ENGRAIS DE SOURCE S ORGANIQUE ET INORGANIQUE ADMINISTRÉS

Abstract

SUMMARY Field experiments have been conducted to study the effect of organic and inorganic sources of nutrients applied alone or in combination on the growth and yield of sunflower. Application of a recommended dose of fertilizer (62.5:75:62.5 kg NPK ha-1) coupled with 10 t ha-1 of farmyard manure has recorded highest seed and stalk yields of sunflower. Growth and yield parameters were also favorably influenced by the application of the recommended dose of fertilizer coupled with farmyard manure. Seed oil content was not influenced by the application of organic or inorganic sources of nutrients.