Legume Research

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Legume Research, volume 39 issue 6 (december 2016) : 955-961

Influence of rhizobium inoculation, split nitrogen application and plant geometry on productivity of garden pea (Pisum sativum L.) in an acid alfisol

Akhilesh Sharma*1, Raj Paul Sharma2, Saurabh Singh3
1<p>Department of Vegetable Science &amp; Floriculture,&nbsp;CSK Himachal Pradesh Agricultural University, Palampur, 176 062, India.</p>
Cite article:- Sharma*1 Akhilesh, Sharma2 Paul Raj, Singh3 Saurabh (2016). Influence of rhizobium inoculation, split nitrogen application and plantgeometry on productivity of garden pea (Pisum sativum L.) in an acid alfisol . Legume Research. 39(6): 955-961. doi: 10.18805/lr.v39i6.6642.

A field experiment comprising of twelve treatment combinations was conducted for two years at Himachal Pradesh Agricultural University, Palampur, India. Crop geometry treatment comprising of two row spacings (60 cm × 10 cm and 45 cm × 10 cm) were allocated to the main plots and six nitrogen management practices namely, Rhizobium inoculation in conjunction with 75 and 50 per cent of recommended N either as basal or split application and  recommended N (100 %) were assigned in sub-plots. Wider spacing resulted in significant higher seed yield (7.3%) over close spacing along with superior performance of component traits and nutrient uptake. The split applied nitrogen resulted in better performance of different parameters which together enhanced seed yield by 13.8 per cent  over recommended N as basal application. Augmentation of nitrogen with Rhizobium culture positively improved growth and yield parameters leading to net saving of  25 per cent  N fertilizers as evident from higher seed yield in treatment comprising 75 per cent split applied N + Rhizobium over recommended N. Interaction effects of split applied N at both row spacings resulted in better performance for seed yield, other related traits and uptake of NPK. Split applied 100 per cent N at wide spacing resulted in 15.5 and 23.6 per cent higher seed yield over recommended N at wider and close spacing, respectively. It could be concluded that Rhizobium inoculation could save 25per cent  synthetic fertilizer N. Wider spacing (60 cm × 10 cm) and split applied nitrogen was a better preposition for enhancing productivity of pea in an acid alfisol under north western Himalayas.

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