Vol. 10, Issue 12 (2021)

Author(s):
Lolamwad NS, Gedam VB, More PR and Jadhav KK

Abstract:
An present field experiment was conducted at the post graduate Research farm, Agronomy section, RCSM College of Agriculture, Kolhapur (MH), India. During March to April 2020 to investigate the effect of fertilizer levels and plant densities on yield, quality and economics of summer sunflower (Helianthus annuus L.). The experiment comprised three fertilizer levels viz, 45:45:45, 60:60:60 and 75:75:75 NPK kg ha^-1 and three plant densities viz, 30 cm x 30 cm, 45 cm x 30 cm and 60 cm x 30 cm. The experiment was laid out in Factorial randomized block design with four replication. Result revealed that fertilizer levels and plant densities had significant effect on yield viz, seed yield, stalk yield, biological yield (q ha^-1) was recorded higher by application of fertilizer levels 75:75:75 kg NPK ha^-1. All these character were recorded higher under plant density (60 cm x 30 cm). except stalk yield and biological yield. The highest stalk yield and biological yield was recorded in (30 cm x 30 cm). The oil content of summer sunflower was not significantly affected by different fertilizer levels and plant densities. The oil yield was recorded higher by application of fertilizer levels 75:75:75 kg NPK ha^-1 and plant density (60 cm x 30 cm). The significantly maximum gross and net monetary returns and benefit cost ratio was obtained with fertilizer levels 75:75:75 kg NPK ha^-1 and plant density (60 cm x 30 cm).