A field experiment was carried out at ‘A-B’ Block farm of BCKV, West Bengal, during subsequent winter seasons of 2017-18 and 2018-19 with grass pea variety Ratan (Bio L-212). Ten treatment combinations were laid out in a factorial RBD consisting seed priming with Ammonium molybdate @ 0.5 g kg-1 seed and foliar feeding at pre-flowering or a second spray at 15 days interval using 2% Urea or 0.5% NPK (19:19:19) to analyse their effect on quality and nutrient uptake of relay grass pea. Priming coupled with twice foliar spray of Urea recorded highest N content in seed and stover and protein content (4.76, 0.98 and 29.77 % respectively) followed by the combination of priming and twice foliar spray of NPK (19:19:19) with a non-significant interaction. The later attained highest yield (1696.70 kg ha-1), P and K content in seed (0.39 and 1.63 %) and stover (0.2 and 1.1%) along with maximum total N, P and K uptakes (108.21, 17.07 and 65.41 kg ha-1) respectively. So, seed priming combined with twice foliar spray of 0.5% NPK (19:19:19) might be recommended as a profitable technology for efficient production of relay grass pea with better quality and nutrient uptake under Gangetic plains of West Bengal.
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Banerjee et al. (2020) studied this question.
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