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

Abstract

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.

Influence of seeding time, fertility level and genotype on productivity, quality and profitability of garden pea (Pisum sativum)

“…Gupta et al, (2017) also reported higher yield at increasing fertility levels. Poor pod yield under no NPK application in comparison to 100 and 125% NPK levels showed that, sink capacity of a plant depends mainly on vegetative growth which is affected positively by application of nutrients and supply of photosynthates for the formation of yield component (Sharma et al, 2016b). The increased availability of nutrients through addition of fertilizers increases the physiological activity, leading to build up of sink and finally better pod development.…”

“…Mukherjee et al, (2013) also found that, best performance in superior genotype was the result of maximum value of yield attributes. In garden pea, consumers prefer long pods with more seeds/pod and high shelling (%) and thereby these traits play a very crucial role in determining the choice of a variety to be adopted by the growers (Sharma et al, 2016b). Interestingly, 'DPP-SP 6' followed by 'DPP-SP 22' showed significant, better performance for these traits in comparison to 'Pb 89' besides high economic benefits and as such may be a better choice for the growers.…”

Increasing area under pulses and soil quality enhancement in pulse-based cropping systems - Retrospect and prospects

“…Hence, microbial activity of rhizosphere is directly responsible for the improved soil structure in crop rotations involving pulses. In a long-term rotational experiment, higher percentage of soil aggregates exceeding 0.25 mm were recorded where preceding crop was a legume (Sharma et al 2000). Crop sequences that return sizeable amount of residues to soil usually result in improved (lower) bulk density (Ganeshamurthy et al 2006).…”

The effect of types and split of urea on yield indicators and yield components of maize

“…Thus, it was noticed that the N split into the stages that maize has the higher N demand, is an efficient method to improve grain yield. Recent studies have reported that split applications improve the utilization of N and increase grain yield in several crops such as maize (Maharjan et al, 2016), wheat (López-Bellido et al, 2005;Olivoto et al, 2016) and garden pea (Sharma et al, 2016). Thus, split N application might be a strategy to be recommended from the standpoint both of the environment and of farmer gains.…”