Abstract
The present experiment was laid out at research farm of R.A.K. College of Agriculture, Sehore (M.P.) during Kharif season of 2022. The experiment was laid out in a randomized complete block design with 8 treatments and each treatment replicated three times. The Blackgram (cv. Pratap -1) was sowing with a seed rate of 15 kg ha-1 and with a spacing of 30 cm x 10 cm. The recommended dose of chemical fertilizer viz. 20:40:20 kg ha-1 N: P2O5: K2O, respectively was applied to the crop. Results revealed that foliar spray application of nutrient shows significant effect on yield and yield attributes. Treatment T7 (2% Spray of DAP + 0.5% Spray of ZnSO4 at pre-flowering and pod initiation stage) found higher for yield and yield attributes i.e. number of pods/plant (13.67), number of seeds/pods (6.15), seed index (4.76 g), seed yield/plant (2.21 g), seed yield/plot (836 g), seed yield/ha (786 kg), straw yield (1730 kg/ha), biological yield (2516 kg/ha), harvest index (31.21 %). While, minimum values found with T1 (Water spray at pre-flowering stage and pod initiation stage).
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