Performance of Zero Tillage Safflower (Carthamus tinctorius L.) under Different Irrigation Schedules and Nutrient Levels in Northern Telangana Zone (NTZ)
P. Ramya, E. Rajanikanth, D. Sreelatha, P. Ravi
International Journal of Environment and Climate Change · pp. 423–429 · Published 12 Aug 2024
10.9734/ijecc/2024/v14i84363Abstract
An experiment was carried out at Regional Agricultural Research Station, Polasa, Jagtial in Northern Telangana Zone during rabi (winter season), 2023-2024 where the performance of zero tillage safflower (Carthamus tinctorius L.) was tested under different irrigation schedules and nutrient levels. The experiment was executed using a factorial randomized block design with 15 treatment combinations, with three replications. The treatments consisted of two factors i.e., factor-1 included irrigation schedules-; I1: Irrigation at rosette and flower initiation stages, I2: Irrigation at rosette and seed development stages, I3: Irrigation at branching and flower initiation stages, I4: Irrigation at branching and seed development stages and I5: No irrigation (residual moisture) and factor-2 included nutrient levels, S1: 75% Recommended dose of fertilizer (RDF), S2: 100% RDF and S3: 125% RDF. The results revealed that irrigation at branching and seed development stages(I4) reported significantly highest seed (1199 kg ha-1), stalk yield (4724 kg ha-1) and yield attributing traits viz.; number of heads plant-1(22.5), number of seeds head-1(23.4), seed weight plant-1(19.8 g), 100-seed weight (7 g), whereas the lowest yield were observed with no irrigation (residual moisture) (I5) treatment. Among different nutrient levels, application of 125% RDF (S3) resulted in the highest seed (1105 kg ha-1) and stalk yield (4429 kg ha-1) and yield attributing traits viz.; number of heads plant-1(21.4), number of seeds head-1(22.6), seed weight plant-1(19.5 g), 100-seed weight (6.7 g) over 75% RDF (S1). Among different treatments, irrigation at the branching and seed development stages combined with the application of 125% RDF gave the best results.
References (6)
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