Effects of grazing two green manure crop types in organic farming systems: N supply and productivity of following grain crops

Çiçek, Harun; Martens, Joanne R. Thiessen; Bamford, Keith C.; Entz, Martin H.

doi:10.1016/j.agee.2013.09.028

Cited by 35 publications

(29 citation statements)

References 58 publications

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“…2). This may be attributed to slow mineralization of organic N in catch crop biomass not being taken up by wheat crop in synchrony (Ladd et al, 1983;Mohr et al, 1998), as well as, faster depletion of readily available soil NO 3 -N from urine in no catch crop plots by the wheat crop (Cicek et al, 2014b). In experiment 2, there were no significant differences between treatments, where both crops acted similarly.…”

Section: [ ( F I G _ 2 ) T D $ F I G ]mentioning

confidence: 71%

“…In organic systems catch crops are generally seeded after animal manure application to capture excess nutrients (Olesen et al, 2000) but rarely seeded after green manures. Because of greater availability of nutrients in grazed green manure systems (Cicek et al, 2014b), an important role of catch crops may be to capture excess nutrients after green manure grazing.…”

Section: Introductionmentioning

confidence: 99%

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Late-season catch crops reduce nitrate leaching risk after grazed green manures but release N slower than wheat demand

Çiçek¹,

Martens²,

Bamford³

et al. 2015

Agriculture, Ecosystems & Environment

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Section: [ ( F I G _ 2 ) T D $ F I G ]mentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Late-season catch crops reduce nitrate leaching risk after grazed green manures but release N slower than wheat demand

Çiçek¹,

Martens²,

Bamford³

et al. 2015

Agriculture, Ecosystems & Environment

Self Cite

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“…While research into these systems is limited, results indicate that crop yields following grazed green manures are equal to those following green manures that were not grazed (Franzluebbers and Stuedemann 2007;Cicek et al 2014b, c). Grazing can, however, increase N availability in the soil in the fall, creating N leaching potential; fall catch crops may be useful for preventing N leaching following grazed green manures (Cicek et al 2015).…”

Section: Grazing In Annual Cropping Systemsmentioning

confidence: 94%

Review: Redesigning Canadian prairie cropping systems for profitability, sustainability, and resilience

2015

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Thiessen Martens, J. R., Entz, M. H. and Wonneck, M. D. 2015. Review: Redesigning Canadian prairie cropping systems for profitability, sustainability, and resilience. Can. J. Plant Sci. 95: 1049Á1072. Redesign of agricultural systems according to ecological principles has been proposed for the development of sustainable systems. We review a wide variety of ecologically based crop production practices, including crop varieties and genetic diversity, crop selection and rotation, cover crops, annual polyculture, perennial forages, perennial grains, agroforestry systems, reducing tillage, use of animal manures and green manures, soil biological fertility, organic production systems, integrated cropÁlivestock systems, and purposeful design of farm landscapes (farmscaping), and discuss their potential role in enhancing the profitability, environmental sustainability, and resilience of Canadian prairie cropping systems. Farming systems that most closely mimic natural systems through appropriate integration of diverse components, within a context of supportive social and economic structures, appear to offer the greatest potential benefits, while creating a framework in which to place all other farming practices. Our understanding of ecological relationships within agricultural systems is currently lacking, and a major shift in research, education, and policy will be required to purposefully and proactively redesign Canadian prairie agricultural systems for long-term sustainability.

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“…Individual NGP research studies have evaluated the impacts of ICLSs on soil nutrients (Liebig et al, 2017), soil properties (Ganjegunte et al, 2005; Lenssen et al, 2013), soil erosion (Blanco‐Canqui et al, 2016b; Burkart et al, 2005), and crop and livestock performance (Cicek et al, 2014; Jose et al, 2017; Miller et al, 2015). Studies evaluating the collective impacts of integrating crops and livestock production on economic returns and resulting services are continuing.…”

Section: Background and Historymentioning

confidence: 99%

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

et al. 2019

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Integrated crop–livestock systems (ICLSs) can help increase food production while benefiting soils and the environment. This review summarizes recent impacts of ICLSs on crop and livestock production and rural economics and discusses lessons learned in the northern Great Plains (NGP). Research on ICLS conducted in the NGP indicates that the crop residue grazing, swath grazing, and annual forage grazing can positively influence crop production; whereas, livestock performance varies with season, forage nutritive value, and grazing management. Furthermore, ICLSs can reduce the costs and risks of agricultural production. The success of ICLSs in NGP region depends on trade‐offs, planning, economic benefits, policies, regulations, community acceptance, and management skills. The ICLSs could play a strategic role in future agricultural production. The lessons learned from adopting ICLSs in the NGP include the lack of available land for fertilizer (manure) management, that to implement ICLS practices skills and knowledge must be maintained, and ICLS provides an entry point for young farmers and ranchers however capital is needed. These experiences and lessons could be valuable references for producers to adopt ICLSs in the NGP or other regions. Core Ideas Integrated crop–livestock systems positively affect crop production by improving soil health. Common integrated crop–livestock system management techniques can enhance the northern Great Plains crop production. Integrated crop–livestock system livestock performance is impacted by season, forage selection, and management. Integrated crop–livestock systems can increase economic benefits and reduce economic risks. Experiences and lessons in the northern Great Plains could be valuable for other regions to adopt integrated crop–livestock systems.

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Effects of grazing two green manure crop types in organic farming systems: N supply and productivity of following grain crops

Cited by 35 publications

References 58 publications

Late-season catch crops reduce nitrate leaching risk after grazed green manures but release N slower than wheat demand

Late-season catch crops reduce nitrate leaching risk after grazed green manures but release N slower than wheat demand

Review: Redesigning Canadian prairie cropping systems for profitability, sustainability, and resilience

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

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