The effect of various dynamics of N availability on winter pea–wheat intercrops: Crop growth, N partitioning and symbiotic N2 fixation

Naudin, Christophe; Corre-Hellou, Guénaëlle; Pineau, Sylvain; Crozat, Yves; Jeuffroy, Marie‐Hélène

doi:10.1016/j.fcr.2010.06.002

Cited by 113 publications

(93 citation statements)

References 28 publications

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“…Yet, as we indicated above, intercrops would be a way of improving harvested grain quality and in particular its protein concentration compared with the traditional sole cropping (e.g. Jensen 1996a; Knudsen et al 2004;Gooding et al 2007;Bedoussac and Justes 2010a;Naudin et al 2010). Our results confirm that the protein concentration of the intercropped cereal is almost always greater than that of the respective cereal sole crop (Fig.…”

Section: Intercropping Improves the Protein Concentration Of The Ceresupporting

confidence: 79%

“…This leads to a rapid decrease in the quantity of available mineral nitrogen in the surface soil layer where occurs symbiotic fixation, which forces the legume to mainly rely on N 2 -fixation (Hauggaard-Nielsen et al 2001a). The consequence is a higher percentage of legume nitrogen derived from air compared with sole crops (Jensen 1996a;CorreHellou et al 2006;Hauggaard-Nielsen et al 2009b;Naudin et al 2010), allowing the legume to fulfil its nitrogen requirements (Crozat et al 1994;Voisin et al 2002;Naudin et al 2010). Our analysis, combining the different experiments and growing conditions in organic farming, confirmed a higher percentage of nitrogen derived from air in legumes when intercropped (in average 73 and 61 % of Ndfa for intercrops and sole crops, respectively; Fig.…”

Section: Partial Conclusion From "Section 2"supporting

confidence: 64%

“…For durum wheat/winter pea intercrops, the biggest advantage of the intercrop is observed for low grain protein concentration of the sole cropped wheat due to limited availability of nitrogen during growth, thus confirming intercrops benefits in low-nitrogen availability systems (Bedoussac and Justes 2010a). Naudin et al (2010) show that unfertilized wheat/winter pea intercrops can produce wheat protein concentrations not significantly different from sole cropped wheat fertilized with 18.5 g N m −2 . In the case of legumes ( Fig.…”

Section: Intercropping Improves the Protein Concentration Of The Cerementioning

confidence: 99%

“…Pictures of the same spot were taken at various times of the growth period. Sequence to be read from left to right and top to bottom 3.2 Intercropping with a non-legume increases the rate of atmospheric N 2 fixation but reduces the quantity of nitrogen fixed on an area basis Among other things, the greater efficiency generally observed in legume/cereal intercrops can be explained by the fact that the two intercropped species use mineral soil N and atmospheric N 2 in a complementary way (Ofori and Stern 1987;Jensen 1996a;Bedoussac andJustes 2010a, 2010b;CorreHellou et al 2006;Naudin et al 2010). This is of special interest in organic systems where soil mineral nitrogen can be a limiting factor while cropping legumes as sole crops can be considered as an inefficient way for utilizing the soil N sources, since the legumes can cover major part of their N requirements by N 2 -fixation.…”

Section: Partial Conclusion From "Section 2"mentioning

confidence: 99%

“…The most obvious advantages emphasized when trying to convince farmers to adopt intercropping strategies are to improve and stabilize yields (Hauggaard-Nielsen et al 2009b;Lithourgidis et al 2006) and also to increase the cereal grain protein concentration as compared to the respective sole crops (Gooding et al 2007). Cereal/legume intercropping is regarded as highly relevant in low-N-input systems and organic farming where nitrogen is often a limiting resource for crop growth (Willey 1979a;Ofori and Stern 1987;Vandermeer 1989;Willey 1990;Fukai and Trenbath 1993;HauggaardNielsen et al 2003;David et al 2005;Desclaux et al 2008;Bedoussac andJustes 2010a, 2010b;Naudin et al 2010). Intercropping has also been shown to: (i) improve soil conservation (Anil et al 1998), (ii) favour weed control (Banik et al 2006;Corre-Hellou et al 2011), (iii) reduce pests and diseases (Trenbath 1993;Altieri 1999;Hauggaard-Nielsen et al 2007;Corre-Hellou and Crozat 2005;Ratnadass et al 2012) and (iv) provide better lodging resistance (Anil et al 1998).…”

Section: Advantages Expected By Cereal/legume Intercroppingmentioning

confidence: 99%

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Ecological principles underlying the increase of productivity achieved by cereal-grain legume intercrops in organic farming. A review

Bedoussac¹,

Journet

Hauggaard-Nielsen

et al. 2015

Agron. Sustain. Dev.

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574

460

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World population is projected to reach over nine billion by the year 2050, and ensuring food security while mitigating environmental impacts represents a major agricultural challenge. Thus, higher productivity must be reached through sustainable production by taking into account climate change, resources rarefaction like phosphorus and water, and losses of fertile lands. Enhancing crop diversity is increasingly recognized as a crucial lever for sustainable agro-ecological development. Growing legumes, a major biological nitrogen source, is also a powerful option to reduce synthetic nitrogen fertilizers use and associated fossil energy consumption. Organic farming, which does not allow the use of chemical, is also regarded as one prototype to enhance the sustainability of modern agriculture while decreasing environmental impacts. Here, we review the potential advantages of eco-functional intensification in organic farming by intercropping cereal and grain legume species sown and harvested together. Our review is based on a literature analysis reinforced with integration of an original dataset of 58 field experiments conducted since 2001 in contrasted pedo-climatic European conditions in order to generalize the findings and draw up common guidelines. The major points are that intercropping lead to: (i) higher and more stable grain yield than the mean sole crops (0.33 versus 0.27 kg m −2 ), (ii) higher cereal protein concentration than in sole crop (11.1 versus 9.8 %), (iii) higher and more stable gross margin than the mean sole crops (702 versus 577€ha −1 ) and (iv) improved use of abiotic resources according to species complementarities for light interception and use of both soil mineral nitrogen and atmospheric N 2 . Intercropping is particularly suited for low-nitrogen availability systems but further mechanistic understanding is required to propose generic crop management procedures. Also, development of this practice must be achieved with the collaboration of value chain actors such as breeders to select cultivars suited to intercropping.

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Section: Intercropping Improves the Protein Concentration Of The Ceresupporting

confidence: 79%

Section: Partial Conclusion From "Section 2"supporting

confidence: 64%

Section: Intercropping Improves the Protein Concentration Of The Cerementioning

confidence: 99%

Section: Partial Conclusion From "Section 2"mentioning

confidence: 99%

Section: Advantages Expected By Cereal/legume Intercroppingmentioning

confidence: 99%

See 3 more Smart Citations

Ecological principles underlying the increase of productivity achieved by cereal-grain legume intercrops in organic farming. A review

Bedoussac¹,

Journet

Hauggaard-Nielsen

et al. 2015

Agron. Sustain. Dev.

Self Cite

574

460

View full text Add to dashboard Cite

show abstract

A review of intercropping systems in Western Canada

Mbanyele,

Enesi,

Shaw

et al. 2024

Agronomy Journal

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Intercropping is gaining interest from Western Canadian producers who are looking for information on how to incorporate intercrops into their production systems. This review summarizes agronomic research on intercropping from the last 40 years in Western Canada and discusses the potential challenges of integrating intercropping into existing crop rotations while identifying challenges and possible solutions. Reviewed literature indicates that several intercrop combinations have been tested in small plots involving up to four crops simultaneously grown, with over 60% comprising pulse–oilseed combinations followed by pulse–cereal combinations at ∼30%. The land equivalent ratio (LER) for pulse–oilseed and pulse–cereal averaged 1.11 and 1.13, respectively. Key agronomic factors that influenced LER in different intercrop combinations have been summarized, and the relationship of N and seeding rate with crop grain LER and partial land equivalent ratio has been assessed. While the relationship between N rate and LER was unclear in pulse–oilseed combinations such as pea (Pisum sativum L.)–canola (Brassica napus L.), LER decreased linearly with increasing N rate (p < 0.004) in pea–barley (Hordeum vulgare L.) intercrop. We highlighted that incorporating intercrops into current rotations will decrease crop rotation lengths with possible implications for disease management. There are many logistical challenges to intercropping but new technology may help producers to adapt.

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Yield and nitrogen uptake of sole and intercropped maize and peanut in response to N fertilizer input

Gao

Wang

Zhang

et al. 2019

Food and Energy Security

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Chinese agriculture needs to become less dependent on fertilizer inputs to enhance sustainability. Cereal/legume intercropping is a potential pathway to lower fertilizer inputs, but there is insufficient knowledge on the nitrogen (N) response in species mixtures. Here, we investigated N response in maize/peanut intercropping. Maize showed a stronger yield response to N input than peanut both in sole cropping and in intercropping, and so did sole crops relative to intercrops. Maize yield was the highest at the maximum level tested: 360 kg N/ha. Agronomic efficiency (AE) of sole maize was 7.8 kg/kg N input, averaged across five N levels (0, 90, 180, 270, and 360 kg/ha). Partial land equivalent ratios (pLERs) for maize decreased with N input, from 0.70 at zero to 0.64 at 360 kg/ha. Sole peanut showed an optimum yield response to N input, with the highest yield at 270 kg/ha and lower yield at 360 kg/ha. The average AE of sole peanut was 1.3 kg/kg. The pLER of peanut declined from 0.43 at zero to 0.32 at 360 kg/ha while the overall LER decreased from 1.13 to 0.96, indicating relative better performance of intercropping at low than at high N input. Apparent recovery (RE) for N was 27.2% for sole maize, 12.4% for sole peanut, and 7.2% for intercrops. Mean N uptake was 179 kg/ha in sole maize, 199 kg/ha in intercropping, and 264 kg/ha in sole peanut. Partial economic budgeting indicated that with the current low Chinese N fertilizer prices, gross margin is maximized with high N input in sole crops; however, for intercropping, the highest gross margin was attained at intermediate N inputs of 180 or 270 kg/ha. Fertilizer price incentives may facilitate a transition to intercropping at moderate N input in China.

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The effect of various dynamics of N availability on winter pea–wheat intercrops: Crop growth, N partitioning and symbiotic N2 fixation

Cited by 113 publications

References 28 publications

Ecological principles underlying the increase of productivity achieved by cereal-grain legume intercrops in organic farming. A review

Ecological principles underlying the increase of productivity achieved by cereal-grain legume intercrops in organic farming. A review

A review of intercropping systems in Western Canada

Yield and nitrogen uptake of sole and intercropped maize and peanut in response to N fertilizer input

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