Biological nitrogen fixation by pulse crops on the semiarid Canadian Prairie

Hossain, Zakir; Wang, Xiaoyu; Hamel, Chantal; Knight, J. Diane; Morrison, Malcolm J.; Gan, Yinbo

doi:10.1139/cjps-2016-0185

Cited by 47 publications

(79 citation statements)

References 42 publications

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“…Like nodule number and nodule weight, BNF varied significantly among the pulse species and across the years (Hossain et al 2016). Overall, dry bean fixed the lowest amount of N (9.3 kg ha −1 ) and faba bean fixed the highest amount (67.5 kg ha −1 ), a trend that matched with the nodule number of the pulses at early flowering (Tables 2 and 3).…”

Section: Nodulationsmentioning

confidence: 78%

“…Highly significant effects of year and year × species interaction were observed for this trait (Table 1), suggesting that nodule formation highly depended on water availability and pulse genotype. We also compared nodule number plant −1 at early flowering with BNF (Tables 2 and 3) and seed yield (Hossain et al 2016).…”

Section: Nodulationsmentioning

confidence: 99%

“…Pulse plants meet their N demand through assimilating soil and fertilizer N and fixing atmospheric N through symbiosis. The N accumulated in different plant tissues varies with many factors, including soil N availability (Yang et al 2015), N 2 -fixation efficiency (Hossain et al 2016), plant genotypes (Bazghaleh et al 2015), and cropping sequences in rotation systems (Borrell et al 2016). During seed filling, the N requirements of developing seeds are generally higher than fixed N 2 and soil N uptake, so the N accumulated in vegetative tissues is translocated to the filling seeds (Salon et al 2001;Schiltz et al 2005).…”

Section: Introductionmentioning

confidence: 99%

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Nodulation and nitrogen accumulation in pulses vary with species, cultivars, growth stages, and environments

et al. 2018

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Biological N2-fixation underpins the role of pulse crops in the development of sustainable cropping systems, but it is uncertain how nodulation and N accumulation may differ with pulse species, cultivars, and environments. This 3 yr field study investigated nodulation at the early and late flowering stages and seed and straw N uptake for chickpea (Cicer arietinum L.), dry bean (Phaseolus vulgaris L.), faba bean (Vicia faba L.), field pea (Pisum sativum L.), and lentil (Lens culinaris Medik.). At early flowering, all pulses except dry bean had more nodules in the wetter (2010) than drier year (2009). Faba bean had the most nodules followed by field pea and chickpea, while the nodulation varied with plant growth stages and environments. For both pea and lentil, more nodules were observed at early flowering, but higher nodule biomass was obtained at late flowering. Chickpea had higher nodule biomass at late than early flowering but number of nodules varied with year. Seed N uptake was highest in field pea, whereas straw N uptake was highest in faba bean. Our results suggest a possibility of improving pulse N2-fixation by targeting nodule numbers and nodule biomass, although the outcome of plant N uptake will vary with environments.

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Section: Nodulationsmentioning

confidence: 78%

Section: Nodulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nodulation and nitrogen accumulation in pulses vary with species, cultivars, growth stages, and environments

et al. 2018

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“…Although the grain yield, net returns and benefit to cost ratios of pea/maize intercropping were similar or even lower than sole maize, the grain composition and quality from this cereal-legume intercropping is more valid for animal or human consumption compared to the sole maize because of the higher protein in pea [42]. Furthermore, the inclusion of annual legumes in cropping systems via either legume-cereal intercropping or cereal-legume rotations can significantly reduce the use of synthetic N fertilizer [43,44], as the legumes fix N 2 O from the atmosphere [45]. Such a legume-cereal system can provide significant ecological and environmental benefits by reducing carbon emissions [27,46], lowering the environmental footprint [47,48] and enhancing soil and ecological sustainability [49,50].…”

Section: Discussionmentioning

confidence: 98%

Agronomic and Economic Benefits of Pea/Maize Intercropping Systems in Relation to N Fertilizer and Maize Density

2018

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Abstract:Intercropping has been shown to increase crop yields and improve land utilization in many cases but it is unknown how the interspecies relationship is enhanced with improved crop management schemes. In this study, we investigated the effect of different maize densities and N rates on the growth, crop yields and economic benefits of pea (Pisum sativum L.)/maize (Zea mays L.) intercropping. The results indicated that total yields of pea/maize intercropping were higher than the yield of maize alone, and that pea/maize intercropping improved land use efficiency significantly compared to sole crops, the partial land equivalent ratio (LER) of maize and pea with high planting density increased from 0.98% to 9.36% compared to low planting densities during 2012 and 2013. The pea strips provided significant compensatory effects on the growing maize after the earlier-sown, shorter-seasoned pea was harvested. The crop growth rate (CGR) of the intercropped maize was 18.5% to 216.9% greater than that of sole maize after pea harvest, the leaf area index (LAI) of pea/maize intercropping was 6.9% and 45.4% greater compared with the weighted average of sole maize and sole pea in 2012 and 2013, respectively. Net returns and benefit to cost ratios of pea/maize intercropping were increased with an increase of maize planting density. A low rate of N fertilizer was coupled with increased maize plant density, allowing interspecific facilitation to be fully expressed, thus improving the land utilization rate and increasing economic benefits. Overall, our findings show that a higher density of maize and lower N application can be used to increase grain production with no adverse effects on the growth components of either pea or maize crops. It could be considered an advanced farming system for agricultural sustainable development in the oasis region of northwest China.

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“…In western Canada, N fertilizers, in combination with on‐farm fuel use, can comprise more than 80% of the total energy input in traditional production systems (Zentner et al., 2004). The ability of PCs to fix atmospheric N (Burgess, Miller, & Jones, 2012; Hossain et al., 2016) results in decreased fertilizer N requirements for the crop rotation and therefore costs (Gan, Liang, Wang, & McConkey, 2011b; Liu, Cutforth, Chai, & Gan, 2016). St. Luce et al.…”

Section: Introductionmentioning

confidence: 99%

Economics of pulse crop frequency and sequence in a wheat‐based rotation

et al. 2020

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Pulse crops (PC) have become an essential part of cropping systems in the northern Great Plains. Despite agronomic benefits of rotating pulses with cereal crops, knowledge of the economics of PC frequency and sequence in a rotation is limited. A field study was conducted from 2010 to 2014 at three locations in western Canada to evaluate the effects of rotating a cereal crop with a range of PC at different frequencies and sequences on the economic returns and risk of both the entire rotation and each individual crop. Crops in rotation included spring wheat (Triticum aestivum L.) (W), field pea (Pisum sativum L.) (P), chickpea (Cicer arietinum L.) (C), lentil (Lens culinaris Medik) (L), and Oriental mustard (Brassica juncea L.) (M). Thirteen 4-yr-cycle crop rotation treatments, along with a continuous wheat treatment as a baseline, were included. Treatments were arranged in a randomized complete block design with four replicates at each site-year. The net revenue (NR) was defined as the income remaining after paying all monetary, land and ownership, and labor costs. Crop rotation had a significant effect on average annual NR. The most profitable rotations were L-L-L-W and P-M-L-W. These rotations provided CAN$330 and $235 yr -1 ha -1 higher NR, respectively, than the baseline, and were most preferable by risk-averse producers. The economic ranking of the rotations remained the same with different crop price scenarios. Preceding PC also had a positive impact on the succeeding wheat crop NR.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Biological nitrogen fixation by pulse crops on the semiarid Canadian Prairie

Cited by 47 publications

References 42 publications

Nodulation and nitrogen accumulation in pulses vary with species, cultivars, growth stages, and environments

Nodulation and nitrogen accumulation in pulses vary with species, cultivars, growth stages, and environments

Agronomic and Economic Benefits of Pea/Maize Intercropping Systems in Relation to N Fertilizer and Maize Density

Economics of pulse crop frequency and sequence in a wheat‐based rotation

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