Effects of shade trees on robusta coffee growth, yield and quality. A meta-analysis

Piato, Kevin; Lefort, François; Subía, Cristian; Caicedo, Carlos; Calderón, Darío; Pico, Jimmy T.; Norgrove, Lindsey

doi:10.1007/s13593-020-00642-3

Cited by 36 publications

(30 citation statements)

References 58 publications

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“…This synthesis provides a strong quantitative basis for understanding plant acclimation to light, from molecular to whole plant responses, but also identifies the variables that currently form weak spots in our knowledge, such as respiration and reproductive characteristics that might have brought about a significant increase in leaf carbon content (Pareek andYadav, 2011, Poorter et al, 2019). Piato et al, 2020 also reported that using shade trees might have protected against temperature variability, erosion and excessive radiation but there may be trade-offs in productivity and quality in robusta coffee .Similar trend was observed in case of root carbon content of tea plants under different plantation systems. Different organic sources of carbon from leaf litter of tea and Albizzia might have lead to greater utilization of nutrients resulting in proper vegetative and root growth and an increase in the root carbon content.…”

supporting

confidence: 64%

Carbon sequestration potential under tea based cropping system

Alom¹,

Das²,

Baruah³

et al. 2021

JEB

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Aim: To study the carbon sequestration process in tea based plantation system and to identify more potential carbon sequestration system amongst the tea based cropping system by studying carbon storage in different components of the plantation system. Methodology: The experiment was carried out in the Experimental Garden for Plantation Crops of Assam Agricultural University, Jorhat, Assam. Treatments were made in an on going, long term shade experiment on mature tea bushes, adapted to three levels of shades viz. tea as monoculture; Tea based cropping system with Areca palm and Tea with Albizzia odoratissima. Results: Among different tea plantations, tea-albizzia recorded superior performance, followed by tea-areca palm plantation in respect to biomass accumulation and carbon sequestration. Similarly, higher carbon stock was found in tea-albizzia plantations along with other physiological and edaphic parameters related to carbon sequestration attributed to an increase in carbon stock. Interpretation: Tea-albizzia plantation system has maximum potential for carbon offsetting from the atmosphere as well as carbon storage both above and below ground in the plantation ecosystem which might be helpful for future carbon management and economy as a whole.

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supporting

confidence: 64%

Carbon sequestration potential under tea based cropping system

Alom¹,

Das²,

Baruah³

et al. 2021

JEB

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“…The potential impacts of Robusta production on biodiversity conservation, ecosystem service provision, and carbon stocks will depend largely on what land use it replaces and how the Robusta systems are managed. Although Robusta is often cultivated with little or no shade, a recent meta-analysis of the impacts of shade on Robusta cultivation found that shade trees can positively impact growth and yields of Robusta coffee plants, but that the effects of shade vary based on the type of clone planted and the plant age (Piato et al 2020 ).…”

Section: Potential Ecological Social and Economic Consequences Of Ongoing Landscape Changesmentioning

confidence: 99%

Transformation of coffee-growing landscapes across Latin America. A review

Harvey¹,

Pritts

Zwetsloot

et al. 2021

Agron. Sustain. Dev.

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In Latin America, the cultivation of Arabica coffee (Coffea arabica) plays a critical role in rural livelihoods, biodiversity conservation, and sustainable development. Over the last 20 years, coffee farms and landscapes across the region have undergone rapid and profound biophysical changes in response to low coffee prices, changing climatic conditions, severe plant pathogen outbreaks, and other drivers. Although these biophysical transformations are pervasive and affect millions of rural livelihoods, there is limited information on the types, location, and extent of landscape changes and their socioeconomic and ecological consequences. Here we review the state of knowledge on the ongoing biophysical changes in coffee-growing regions, explore the potential socioeconomic and ecological impacts of these changes, and highlight key research gaps. We identify seven major land-use trends which are affecting the sustainability of coffee-growing regions across Latin America in different ways. These trends include (1) the widespread shift to disease-resistant cultivars, (2) the conventional intensification of coffee management with greater planting densities, greater use of agrochemicals and less shade, (3) the conversion of coffee to other agricultural land uses, (4) the introduction of Robusta coffee (Coffea canephora) into areas not previously cultivated with coffee, (5) the expansion of coffee into forested areas, (6) the urbanization of coffee landscapes, and (7) the increase in the area of coffee produced under voluntary sustainability standards. Our review highlights the incomplete and scattered information on the drivers, patterns, and outcomes of biophysical changes in coffee landscapes, and lays out a detailed research agenda to address these research gaps and elucidate the effects of different landscape trajectories on rural livelihoods, biodiversity conservation, and other aspects of sustainable development. A better understanding of the drivers, patterns, and consequences of changes in coffee landscapes is vital for informing the design of policies, programs, and incentives for sustainable coffee production.

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“…Consistent with the results of Tully and Lawrence (2011), in which greater yields were reported under synthetic fertilization in robusta coffee agroecosystems, our study found higher coffee yields with conventional input. A recent meta-analysis by Piato et al (2020) reported that the use of shade trees may increase robusta coffee productivity. Though we found no significant differences in coffee yield within LT interplanting, we found significant interaction between input and interplanting where conventional and organic input achieved similar yields when combined with the presence of LT, and the greatest and lowest yield, respectively, when combined with absence of LT. Interplanting non-coffee trees can influence light exposure and subsequently coffee photosynthetic rates, as well as water and nutrient availability, which when combined with the application of different N sources in rate and form may induce contrasting scenarios of coffee productivity.…”

Section: 3mentioning

confidence: 99%

Soil nitrogen cycling under contrasting management systems in Amazon Coffea canephora agroecosystems

López

Navarrete

Rosado

et al. 2021

Soil Science Soc of Amer J

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Robusta coffee (Coffea canephora Pierre ex Froehner) is well suited to the humid tropical climate of the Amazon basin. It is often produced under contrasting conditions of low-input agroforestry systems and intensively managed monocultures that differ in N constraints on productivity. We evaluated indicators of soil N cycling and coffee plant N sufficiency using a full factorial of two input managements (organic vs. conventional) and the absence or presence of the interplanted leguminous tree (LT) Erythrina spp. in a replicated robusta coffee field trial in the Ecuadorian Amazon. Activities of soil protease, three aminopeptidases, N-acetyl-β-D-glucosaminidase, cellobiohydrolase, and β-glucosidase were evaluated in tandem with soil NH 4 -N and NO 3 -N, potentially mineralizable N (PMN), and permanganate oxidizable C (POXC), as well as coffee leaf N, leaf N/P ratio (N/P), and yield. The LT decreased soil enzyme activities, PMN, and extractable NH 4 -N, as well as leaf N and leaf N/P. Enzyme activities and NH 4 -N were greater under organic input, but conventional input resulted in greater PMN, leaf N, leaf N/P, and yield. Permanganate oxidizable C and NO 3 -N were similar across input and interplanting but were more variable in the presence of LT relative to its absence. Lower soil enzymatic activities, labile N pools, and leaf N in coffee systems with Erythrina spp. suggest that, although a common smallholder practice in this region, interplanting this leguminous perennial has marginal impacts on soil N cycling and may not necessarily improve N supply for robusta coffee. INTRODUCTIONCoffee is an important cash crop in many developing tropical countries as the economic basis of an estimated 20 mil-

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Effects of shade trees on robusta coffee growth, yield and quality. A meta-analysis

Cited by 36 publications

References 58 publications

Carbon sequestration potential under tea based cropping system

Carbon sequestration potential under tea based cropping system

Transformation of coffee-growing landscapes across Latin America. A review

Soil nitrogen cycling under contrasting management systems in Amazon Coffea canephora agroecosystems

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