Interactions Between Crop and Livestock Activities in Rainfed Farming Systems

Wolfe, Edwin

doi:10.1007/978-1-4020-9132-2_11

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…In general, crop systems have higher NUE than livestock systems, which are associated with high animal waste and GHG emissions (Uwizeye et al, 2020). Specialization has broken a virtuous circle between livestock and crops, whereby the forage, fiber, and grains for animal feed were provided by cropping while nutrients and organic matter were returned from animals to crops (Thorne, 2007;Wolfe, 2011). A return to integrated croplivestock production systems are increasingly discussed as a way of achieving high production while avoiding the negative externalities of specialized systems (Baiyeri et al, 2019;Peterson et al, 2020;Vogel et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…There are many variants of the integrated crop-livestock systems, from those managed in separate farms but sharing by-products and residues to those in which crops and animals are on the same farm, sometimes in rotation on the same land, but this scenario is currently quite rare, representing in the best case <50% of the total system agricultural area (Wolfe, 2011;Garrett et al, 2017;Brewer and Gaudin, 2020). In all cases, regardless of the degree of integration, the common denominator is the use of animals for what they are good at converting fibrous feeds (e.g., forage) and byproducts from the food system into high-value products and manure (Van Zanten et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Regional differences in nitrogen balance and nitrogen use efficiency in the rice–livestock system of Uruguay

Castillo

Kirk²,

Rivero³

et al. 2023

Front. Sustain. Food Syst.

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The reintegration of crops with livestock systems is proposed as a way of improving the environmental impacts of food production globally, particularly the impact involving nitrogen (N). A detailed understanding of processes governing N fluxes and budgets is needed to design productive and efficient crop–livestock systems. This study aimed to investigate regional differences in N balance (NBAL, defined as all N inputs minus outputs), N use efficiency (NUE, defined as N outputs/inputs × 100), and N surplus (NSURP, defined as all N inputs minus only outputs in food products) in the rice–livestock system of Uruguay. Three regions across Uruguay are distinguished based on soil fertility and length of pasture rotation. The northern region has high soil fertility and short length of rotation (HFSR); the central region has medium soil fertility and medium length of rotation (MFMR); the eastern region has low fertility and long pasture rotation (LFLR). Results for the last 18 years show a very high NUE (90%) for the rice component in all rotations, associated with negative NBALs ranging from −35 kg N ha−1 yr−1 in HFSR to −3 kg N ha−1 yr−1 in LFLR. However, the livestock component, which overall had low animal productivity (<2 kg N ha−1 yr−1), had low NUE (<10%) but positive NBALs in all the rotations, sustaining N supply in the rice component. At the system level, NUE was high (60%) and NBAL was slightly positive in all rotations (from +2.8 kg N ha−1 yr−1 in HFSR to +8.5 kg N ha−1 yr−1 in LFLR). Because of a recent increase in the N fertilizer dose in rice, NSURP for the overall system was intermediate (40 kg N ha−1 yr−1) and should be monitored in the future. Efforts to improve the system's efficiency should focus on the livestock component.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Regional differences in nitrogen balance and nitrogen use efficiency in the rice–livestock system of Uruguay

Castillo

Kirk²,

Rivero³

et al. 2023

Front. Sustain. Food Syst.

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Farmer interest in joint venture structures in the Australian broadacre grains sector

et al. 2017

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There is a growing productivity gap between leading and average grain farms in Australia, driven by a combination of constraints that limit the adoption of innovations. Such constraints may be overcome by the adoption of organizational innovations, including collaborative structures such as joint venture (JV) arrangements. Given the predominance of the owner‐operator family farm model in the Australian grains sector, organizational innovations have largely been overlooked by the research and extension community. This paper examines business alliance formation in agriculture and farmer perceptions of, interest in, and barriers to participation in JV structures. A telephone survey of 573 Australian grain growers revealed that 3% of farmers had adopted a JV structure and that such farms were significantly more likely to have a larger crop area and be less diversified compared to nonadopters. Another 21% of farmers expressed an interest in adopting a JV structure in the future, particularly to reduce costs and improve productivity. A multinomial logit model showed that such farmers were significantly different for a number of sociodemographic variables including age and education, when compared to farmers not interested in adopting JV structures. To build on this basis of interest and motivation for innovative farm business structures, further understanding of perceived trade‐offs and preferences is needed to identify the most attractive JV designs. [EconLit Citation: Q13].

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