Biological nitrogen fixation by fababean, pea and chickpea, under field conditions, estimated by the isotope dilution technique

Carranca, Corina; Varennes, Amarílis de; Rolston, D. E.

doi:10.1016/s1161-0301(98)00049-5

Cited by 87 publications

(57 citation statements)

References 24 publications

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“…Further, it should be noted that RIL and fertility-building leys were not the only methods to contribute to maintaining soil N fertility. Contrary to the statement that the potential addition of N to the soil N pool by pulse crop legumes was very low or even negative (Carranca et al 1999), here all estimates of NNI were positive, even though high aboveground NHI values (0.75 for grain crops and 0.9 for alfalfa) were assumed. N use efficiency and N surplus over a typical organic crop rotation.-Understanding the flow of N at the field level is a crucial indicator of directional changes toward deficits or surplus and therefore of the potential for soil degradation or environmental losses (Drinkwater and Snapp 2007).…”

Section: Implications On Organic N Balances (Northern France)contrasting

confidence: 99%

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

2015

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Citation: Anglade, J., G. Billen, and J. Garnier. 2015. Relationships for estimating N 2 fixation in legumes: incidence for N balance of legume-based cropping systems in Europe. Ecosphere 6(3):37. http://dx.doi.org/10.1890/ES14-00353.1Abstract. Management of nitrogen (N) inputs into agricultural systems is of increasing interest due to the intensive use of synthetic fertilizers in modern cash crop systems, which has caused considerable environmental damage, including nitrate contamination of surface and groundwater, eutrophication of coastal marine areas and emission of greenhouse gases. The use of legumes grown in rotations or intercropping is nowadays regarded as an alternative and sustainable way of introducing N into low-input cropping systems. In order to develop a simple tool to assess biological nitrogen fixation (BNF) by legume pulse and forages within crop rotations, we conducted a systematic literature survey with a quantitative statistical analysis intended to define a robust relationship between measurable variables and N 2 fixation. We found highly significant correlations between total N accumulation in shoot matter and fixed N 2 in forage (y ¼ 0.79x À 0.49) and grain (y ¼ 0.70x þ 1.01) legumes. Accurately estimating the contribution of belowground components is more difficult because of a lack of relevant studies. Properly assessing BNF is crucial to evaluate the possibility of diversified legume based cropping systems achieving a balance between inputs and outputs, thus ensuring both short-term productivity and long-term sustainability. For a typical nine-year organic rotation in the Paris basin alternating legumes and cereals, the soil surface balance, calculated with the relationships obtained, indicated that N fluxes were balanced, leaving a surplus of only a few kg N/ha/yr, with legumes accounting for 86% of total N inputs.

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Section: Implications On Organic N Balances (Northern France)contrasting

confidence: 99%

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

2015

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“…Grain legumes fix nitrogen, a unique feature that makes them important under marginal conditions. While nitrogen fixation is a key point for the promotion of grain legumes, there is poor understanding that nitrogen fixation is influenced by other factors such as presence of nitrogen fixing bacteria, lack of other soil nutrients and abiotic stresses [45,165]. Also, as previously alluded to, nitrogen fixation is often limited by the lack of inoculants in rural cropping systems.…”

Section: Grain Legumes: Opportunities and Constraintsmentioning

confidence: 99%

Expounding the Value of Grain Legumes in the Semi- and Arid Tropics

2017

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Approximately 70% of the population in the semi-and arid tropics reside in rural areas and depend on agriculture for their livelihood. Crop production is primarily focused on a few starchy staple crops. While this can ensure adequate calories, it inadvertently neglects the need for dietary diversity. Consequently, food and nutritional insecurity remains prevalent in the semi-and arid tropics. We reviewed the legume value chain with the aim to identify opportunities and challenges to unlocking their value and promoting them in the tropics. Several grain legumes are rich in proteins and micronutrients. They also possess adaptability to marginal environmental conditions such as drought and low input systems which typify rural landscapes. Adaptability to abiotic stresses such as drought makes them key to agriculture in areas that will receive less rainfall in the future. However, this potential was currently not being realized due to a range of challenges. Aspects related to their seed systems, production, post-harvest handling and marketing remain relatively under-researched. This was especially true for minor legumes. There is a need for transdisciplinary research which will address the entire value chain, as has been done for major starchy crops. This could also unlock significant economic opportunities for marginalized groups such as women. This will unlock their value and allow them to contribute meaningfully to food and nutrition security as well as sustainable and resilient cropping systems.

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“…According to Carranca et al [46], nature of distribution of rainfall at vegetative growth stage affects the N 2 fixation capacity of lentil. Matus et al [47] reported that N 2 fixation of lentil was 10% higher when grown in zero tillage as compared to conventional tillage practices.…”

Section: Lentil and Nitrogen Economymentioning

confidence: 99%

Lentil (Lens Culinaris Medikus) Current Status and Future Prospect of Production in Ethiopia

Reda¹

2015

APAR

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Biological nitrogen fixation by fababean, pea and chickpea, under field conditions, estimated by the isotope dilution technique

Cited by 87 publications

References 24 publications

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

Expounding the Value of Grain Legumes in the Semi- and Arid Tropics

Lentil (Lens Culinaris Medikus) Current Status and Future Prospect of Production in Ethiopia

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Biological nitrogen fixation by fababean, pea and chickpea, under field conditions, estimated by the isotope dilution technique

Cited by 87 publications

References 24 publications

Relationships for estimating N2 fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

Relationships for estimating N2 fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

Expounding the Value of Grain Legumes in the Semi- and Arid Tropics

Lentil (Lens Culinaris Medikus) Current Status and Future Prospect of Production in Ethiopia

Contact Info

Product

Resources

About

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe

Relationships for estimating N₂ fixation in legumes: incidence for N balance of legume‐based cropping systems in Europe