Effect of Post-Emergence Application of Imazethapyr on Growth, Yield, Quality and Economics in Garden Pea (Pisum sativum L.)

A field experiment was conducted during the rabi season of 2023-2024 at the Instructional cum Experimental Farm, Nagaland University, School of Agricultural Sciences, Medziphema campus to evaluate the effect of post-emergence application of imazethapyr on growth, yield, quality and economics in garden pea. The experiment consisted of 12 treatments laid out in RBD with three replications and the variety used for cultivation was KSP-110. Results of the experiment revealed that application of post-emergence spray of imazethapyr @ 125 g a.i. ha-1 at 30 DAS (T11) obtained maximum germination percentage (81.03%), plant height (55.33 cm), number of leaf/plant (52.67), number of branches/plant (18.33), length of pod (8.10 cm), number of seed per pods (8.27). Application of post-emergence spray of imazethapyr @ 75 g a. i. ha-1 at 40 DAS (T6) obtained maximum diameter of the pod (1.25 cm), number of pods per plant (7.00), fresh weight of pod (5.97 g), pod yield (139.33 q/ha). Dry matter of seed (32.90%), protein content in seed (28.85%) were obtained maximum when treated with post-emergence spray of imazethapyr @ 75 g a.i./ha at 20 DAS (T4). Treatment T6 (post-emergence spray of imazethapyr @ 75 g a. i. ha-1 at 40 DAS) recorded maximum net return of Rs. 452420 with B:C ratio 4.31. The above findings suggest that the application of imazethapyr can be effectively used for obtaining higher yield, reduce weed, reduce labor cost, and higher net returns for cultivation of garden pea.