Influence of Sulphur and Boron on Growth and Yield of Zaid Sunflower

A field experiment was conducted during Zaid (summer) season of 2023 at Crop Research Farm Department of Agronomy, SHUATS, Prayagraj (U.P). The experiment was laid out in Randomized Block Design with ten treatments which are replicated thrice on the basis of one year experimentation. The treatment consisted of 3 levels of sulphur (20 kg/ha, 40 kg/ha and 60 kg/ha) and boron (0.5%, 1% and 1.5%) along with recommended dose of nitrogen, phosphorus, potassium and control (60:45:45 NPK kg/ha), this experiment was laid out in a Randomized Block Design with 10 treatment and replications thrice application sulphur The application of Sulphur - 60 kg/ha + Boron-1.5% (Treatment 9) recorded significantly maximum number of flowers per plant (3.00), seeds/capitulum (308.00), test weight (50.87 g), seed yield (1111.20 kg/ha), stover yield (3126.90 kg/ha), harvest index (26.23%) was obtained in the treatment of sulphur-60 kg/ha Boron-1.5%. It was concluded that for obtaining higher yield components with better quality of Sunflower application of Sulphur – 60 kg/ha + Boron – 1.5% was recommended.