Vol. 10, Issue 12 (2021)

Author(s):
Poleboina Venkata Ravikumar, Umesha C, Degala Anandamai and Surla Govinda Raju

Abstract:
The field experiment was entitled “Effect of Sulphur and Phosphorus levels on Growth attributes and Economics of Safflower (Carthamus tinctorius L.) var. “ISF-764” was conducted during Rabi 2020 at (CRF) Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P.). The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (Ph 7.5), low in organic carbon (0.50%), available nitrogen (228.59 kg/ha), available phosphorus (29.80 kg/ha) and available potassium (125.21 kg/ha). The experiment was laid out in randomized block design with nine treatments consists of viz., T₁: 20kg/ha Sulphur + 30kg/ha Phosphorus, T₂: 20kg/ha Sulphur + 40kg/ha Phosphorus, T₃: 20kg/ha Sulphur + 50kg/ha Phosphorus, T₄: 30kg/ha Sulphur + 30kg/ha Phosphorus, T₅: 30kg/ha Sulphur + 40kg/ha Phosphorus, T₆: 30kg/ha Sulphur + 50kg/ha Phosphorus, T₇: 40kg/ha Sulphur + 30kg/ha Phosphorus, T₈: 40kg/ha Sulphur + 40kg/ha Phosphorus, T₉: 40kg/ha Sulphur + 50kg/ha Phosphorus and were replicated thrice. Results obtained that there was Singificantly highest in Growth attributes viz., Plant height (105.66 cm), Number of Branches/plant (23.53), Dry weight (41.12 g), Crop growth rate (3.53 g/m²/day), Relative growth rate (0.01 g/g/day) were recorded superior with the application of 40 kg/ha Sulphur + 50 kg/ha Phosphorus. In Economics the highest Gross returns (84080.00 INR/ha), Net returns (60720.00 INR/ha) and B:C ratio (2.59). Therefore, application of 40 kg/ha Sulphur + 50 kg/ha Phosphorus was more productive and economically feasible.