Effect of Combined Application of Non–Nano and Nano Fertilizers on the Growth, Yield and Oil Content of Sunflower under Semi-arid Conditions

Field experiment was conducted at International Crops Research Institute for the Semi-Arid Tropics, Hyderabad during early summer season in 2021 and 2022 to study “Effect of integrated use Nano Non–Nano fertilizers on growth yield sunflower under semi-arid conditions”. The carried out using randomized block design with 3 replications comprised 12 treatments. averages all indicators were compared according L.S.D test a probability level 0.05. Results revealed that application conventional as per recommended dose (75:90:30 kg/ha) along foliar nano (19:19:19) N P K 0.2% 30 DAS 60 + boron 0.2 % ray floret opening stage (T7) recorded highest plant height (195,197 and196 cm), number leaves (27.43, 28.12 27.78), leaf area (7632, 7665 7649 cm2 plant-1), index (LAI) (4.24 4.25 4.25), dry matter production (98.96, 97.64 98.30 g/plant) 90 both years mean basis. However, treatment T7 statistically par T9 - Conventional 50% spray stage. Seed (1961,1915 1938 kg/ha), stalk (4193, 3918 4055 also significantly influenced respectively T9. Lowest seed (758, 710 734 kg/ ha) (1684, 1702 1693 oil content (40.73 %, 39.67% & 40.20) control