Planting geometry and dehaulming schedule affecting productivity of seed potato (Solanum tuberosum)

A field experiment was conducted during the winter (rabi) season of 2014–15 and 2015–16 at Punjab Agricultural University, Ludhiana, to study effect planting geometry dehaulming scheduling on grade-wise productivity economic returns potato (Solanum tuberosum L.). The in a split-plot design with 3 geometries (65 cm × 11.5 cm, 65 15 18.5 cm) as main plots schedules subplots [80, 90 100 days after sowing (DAS)] replicated thrice. results showed that, timings significantly influenced tuber-size distribution, tuber yield crop. Among geometries, highest yields small (<35 mm) (6.63 t/ha) medium (35–45 mm)-size tubers (15.92 were recorded closer (60 cm), which par cm. Contrarily, large size (>45 (22.29 obtained wider it also net (`379,400/ha) benefit: cost ratio followed by (7.19 t/ha)-and (16.15 t/ha)-size 80 DAS. However, delayed haulm cutting up DAS increased (24.84 total (43.72 t/ha). gross returns,