scholarly journals Management to Promote Flowering Understoreys Benefits Natural Enemy Diversity, Aphid Suppression and Income in an Agroforestry System

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 651
Author(s):  
Tom Staton ◽  
Richard Walters ◽  
Jo Smith ◽  
Tom Breeze ◽  
Robbie Girling
Keyword(s):  
Natural Enemies ◽  
Agricultural Land ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Farm Income ◽  
Pollinator Visitation ◽  
Invertebrate Diversity ◽  
Cutting Regimes ◽  
Natural Pest Control ◽  
Invertebrate Pests

Agroforestry systems, where productive trees are integrated into agricultural land, can deliver benefits to biodiversity, natural pest control, and pollination, but the effects are highly variable. Recent advances in our understanding of flower strips in agricultural systems suggest that the management of the tree row understorey could be an important contributor to this variation. Here, we compare two cutting regimes for an understorey, originally seeded with the same flower mix, in the tree rows of an apple-arable agroforestry system: (i) uncut vegetation to promote a flowering understorey, and (ii) regularly mown vegetation. We recorded the effects of management on invertebrate pests, natural enemies, and pollinators, in both the apple and arable components. Apple trees above flowering understoreys supported significantly: (i) more natural enemies early in the season, (ii) fewer aphid colonies, (iii) fewer aphid-damaged fruits, and (iv) higher pollinator visitation, compared with those above mown understoreys. In the arable crop alleys, both the taxonomic richness and Shannon diversity of ground-based natural enemies were significantly higher adjacent to flowering understoreys, compared with those adjacent to mown understoreys, early in the season. Financial modelling based on aphid damage to apples, mowing costs, and income from Countryside Stewardship grants, indicated that flowering understoreys increased farm income by GBP 231.02 per ha of agroforestry compared with mown understoreys. Our results provide the first empirical evidence that management to promote flowering understoreys in agroforestry systems can be a win-win option to improve invertebrate diversity, associated ecosystem services, and farm income.

scholarly journals SOIL WORMS POPULATION IN VARIOUS LITTLE QUALITY (C, N, C / N, LIGNIN, AND POLYPHENOL) (CASE STUDY ON AGROFORESTRY LAND IN KELIMUTU NATIONAL PARK, ENDE REGENCY-INDONESIA)

2020 ◽  
Vol 8 (1) ◽  
pp. 124-130
Author(s):  
Agustinus JP Ana Ana Saga ◽  
Heny M.C. Sine ◽  
Laurensius Lehar
Keyword(s):  
Organic Matter ◽  
National Park ◽  
Agricultural Land ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Secondary Forests ◽  
Vegetable Crops ◽  
Earthworm Biomass ◽  
Agricultural Business

The agricultural business that is applied to the agroforestry system in Kelimutu National Park causes differences in the quality of organic matter of plants and earthworm populations, which have consequences for soil environmental services. The purpose of this study is to evaluate the earthworm population and the quality of plant organic matter in various agroforestry systems, intensive agriculture, and secondary forests. Sampling of organic matter from plants and earthworms was carried out in January - July 2016 (in the rainy season) in Agroforestry land: Clove (AF - CK), Cocoa (AF - KK), Candlenut (AF - KM), Coffee (AF - KM) ) compared to intensive agricultural land (monoculture vegetable crops) and secondary forests (SPL-HS), with 3 times repetition. Variables observed were in addition to the number of earthworms found and biomass worms (monolith sampling), also observed the quality of plant organic matter (C (Walkley and black), N (Kjeldahl), Lignin, and Polyphenol (Goering and Van Soest)) (Quadrants). The survey results show that the population of earthworms in SPL-AF is as low as the population in SPL-HS, an average of 3 m-2, while in the SPL-PI the average is only 0.24 m-2. Earthworm biomass in AF is about 69% smaller than worms found in SPL-HS; average earthworm biomass in SPL-AF 15 gm-2 while in SPL-HS an average of 47 gm-2; and the smallest worm biomass found in SPL-PI averaging around 2.3 gm-2. The average quality of organic matter of C-org plants in all SSTs was 38% to 50%, the highest C-org content of AF-CK, AF-KP and SPL-HS were significantly different (p <0.05) with C levels that were others (39% on average). The N and lignin levels of all plant organic matter are the same (P> 0.05), the average is 1.36% and 41.13%, respectively. The C / N ratio in AF - CK and HS is the same at an average of 52.78% or 58 times higher than AF - KK, AF - KM, and AF - KP, the average is 31.11% The polyphenolic levels of different plant organic matter significant (p <0.05) between SPL. The highest levels of polyphenols were on average 17.5% found in plant organic matter AF - CK and SPL - HS, while plant organic matter in other fields averaged 3.4%. Plant organic matter with polyphenol content> 2% will slow decay.

scholarly journals Parcelized Cut-and-Carry Agroforestry Systems for Confined Livestock

2020 ◽  
Author(s):  
A. P. Seruni ◽  
F. X. Aguilar ◽  
Z. Cai ◽  
M. A. Gold ◽  
J. M. Roshetko
Keyword(s):  
Rural Livelihoods ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Primary Data ◽  
Farm Income ◽  
Local Market ◽  
Capital Asset ◽  
Land Utilization ◽  
Central Java ◽  
Agroforestry Practices

Abstract We characterize a parcelized land management system that does not meet traditional co-located agroforestry practices in the tropics. A cut-and-carry agroforestry system for confined livestock emphasizes land utilization as a source of fodder, cutting and carrying feed from parcels to paddocks near a farmer’s home. It reduces feed cost by utilizing parcels under private, shared, and/or public ownership. Within cut-and-carry systems, we distinguish between those where parcels are managed as monocrops and traditional co-located agroforestry practices. Primary data for our case study were collected by surveying heads of household in Central Java, Indonesia, and analyzed following a capitals-based rural livelihoods framework. A sample of 122 farmers who managed parcels under co-located agroforestry practices was compared against 50 farmers who implemented parcelized monocropping. Overall, the adoption of cut-and-carry systems supports financial resiliency by limiting cash expenditures, facilitating income diversification, and producing assets that meet planned market opportunities and unforeseen cash needs. Survey results show that farmers who engage in parcelized agroforestry have more farming experience, higher farming income, are located at higher elevations, and live farther from the nearest local market. On-farm income among agroforestry cut-and-carry farmers was on average 11.1% higher than those using a cut-and-carry system but only adopting monocrop practices. Land as a biophysical capital asset under full private-ownership and at higher altitudes, and longer farming experience as a human capital asset, increased the likelihood of adopting parcelized co-located agroforestry practices. Membership in cash-crop cooperatives as a form of social capital asset was associated with a higher likelihood of managing land as parcelized monocrops.

scholarly journals Kajian Biofisik Lahan Untuk Tanaman Porang Sebagai Anasir Konservasi Pada Sistem Agroforestri Di Pulau Lombok

2021 ◽  
pp. 94-107
Author(s):  
IGM Kusnarta ◽  
Mahrup Mahrup ◽  
Padusung Padusung ◽  
I Nym Soemeinaboedhy ◽  
Fahrudin Fahrudin
Keyword(s):  
Water Conservation ◽  
Agricultural Land ◽  
Soil Aggregates ◽  
Organic Matter Content ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Matter Content ◽  
Soil And Water Conservation ◽  
Water Infiltration ◽  
Soil And Water

Agricultural land in North Lombok is dominated by a typology of sub-optimal land, physically, chemically and biologically. These properties make it vulnerable to degradation. In such land, agroforestry system is highly recommended, where the porang plant can be included as a component. Nowdays, porang is gaining popularity as a commodity with economic value, and is suitable as an intercropping plant. It is easy to grow on almost all types of soil, and is resistant to shade, making it adaptive to agroforestry systems as non-timber under standing plants in community forest systems. It is believed that this will provide multiple benefits economicly and environmentaly, if it accompanied by the principles of soil and water conservation. The role of porang as a conservative agent has been investigated through a scientific approach as the basis for the domistication of porang in agroforestry systems. The results showed that agroforestry with porang could help improve the stability of the soil aggregates as indicated by the soil aggregate stability index 59 which means rather stable. Soil moisture of wilting point in agroforestry system with porang increased from 3.0% (without porang) to 5.4%. In addition, the soil organic matter content increased to 3.94% (quite high) on the system with porang because the stems and leaves of porang plant are quickly weathered. The ground cover is relatively tight, so it can prevent soil erosion. Porang also play a role in increasing water infiltration due to the presence of porang’s roots and tubers. Thus the domistication of porang fulfills the requirements as an agent of soil conservation, as non-timber plant in the agroforestry system, if it is cultivated according to the principles of soil and water conservation on the typology of sub-optimal land in North Lombok. 

scholarly journals Agroforestry Systems of the Tehuacán-Cuicatlán Valley: Land Use for Biocultural Diversity Conservation

Land ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 24
Author(s):  
Mariana Vallejo ◽  
M. Isabel Ramírez ◽  
Alejandro Reyes-González ◽  
Jairo López-Sánchez ◽  
Alejandro Casas
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Agroforestry Systems ◽  
World Heritage Site ◽  
Biocultural Diversity ◽  
Semiarid Region ◽  
Agricultural Land Use ◽  
Visual Interpretation ◽  
Natural Ecosystems ◽  
Human Settlements

The Tehuacán-Cuicatlán Valley, Mexico, is the semiarid region with the richest biodiversity of North America and was recently recognized as a UNESCO's World Heritage site. Original agricultural practices remain to this day in agroforestry systems (AFS), which are expressions of high biocultural diversity. However, local people and researchers perceive a progressive decline both in natural ecosystems and AFS. To assess changes in location and extent of agricultural land use, we carried out a visual interpretation of very-high resolution imagery and field work, through which we identified AFS and conventional agricultural systems (CAS) from 1995 to 2003 and 2012. We analyzed five communities, representative of three main ecological and agricultural zones of the region. We assessed agricultural land use changes in relation to conspicuous landscape features (relief, rivers, roads, and human settlements). We found that natural ecosystems cover more than 85% of the territory in each community, and AFS represent 51% of all agricultural land. Establishment and permanence of agricultural lands were strongly influenced by gentle slopes and the existence of roads. Contrary to what we expected, we recorded agricultural areas being abandoned, thus favoring the regeneration of natural ecosystems, as well as a 9% increase of AFS over CAS. Agriculture is concentrated near human settlements. Most of the studied territories are meant to preserve natural ecosystems, and traditional AFS practices are being recovered for biocultural conservation.

scholarly journals ALLELOPATHIC EFFECTS OF ROSE WOOD, GUAVA, EUCALYPTUS, SACRED FIG AND JAMAN LEAF LITTER ON GROWTH AND YIELD OF WHEAT ( Triticum aestivum L.) IN A WHEAT-BASED AGROFORESTRY SYSTEM

2017 ◽  
Vol 35 (0) ◽  
Author(s):  
J. IQBAL ◽  
H.A. RAUF ◽  
A.N. SHAH ◽  
B. SHAHZAD ◽  
M.A Bukhari
Keyword(s):  
Grain Yield ◽  
Leaf Litter ◽  
Eucalyptus Camaldulensis ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Growth And Yield ◽  
Syzygium Cumini ◽  
Allelopathic Effects

ABSTRACT Selection of tree species under agroforestry systems is crucial to sustain the productivity of a crop. In present study, allelopathic effects of the leaf litters of 5 trees named Rose wood (Dalbergia sissoo), Guava (Pisidium guajava), Eucalyptus (Eucalyptus camaldulensis), Sacred fig (Ficus religiosa) and Jaman (Syzygium cumini) species on wheat growth and yield was examined. Leaf litter of each tress species was mixed in soil with two doses @ 100 and 200 g of leaves of each species per pot. Higher shoot length, shoot dry weight, number of spikelets per spike and biological yield were recorded in 200 g sun dried Jaman (Syzygium cumini) leaves. Total number of tillers per plant and number of ears per plant were higher under the application of Eucalyptus camaldulensis leaves (200 g sun dried) as compared to other treatments. Spike length, grain yield per pot, number of grains per pot and harvest index were maximum in 200 g sun-dried Sacred fig (Ficu sreligiosa) leaves. Majority of the parameters were promoted at lower doses of leaves per pot, however, at higher doses they started inhibiting the growth and grain yield of wheat.

scholarly journals High organic inputs explain shallow and deep SOC storage in a long-term agroforestry system – Combining experimental and modeling approaches

2017 ◽  
Author(s):  
Rémi Cardinael ◽  
Bertrand Guenet ◽  
Tiphaine Chevallier ◽  
Christian Dupraz ◽  
Thomas Cozzi ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Priming Effect ◽  
Crop Residues ◽  
Triticum Turgidum ◽  
Juglans Regia ◽  
Farming System ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Root Senescence ◽  
Soc Stocks

Abstract. Agroforestry is an increasingly popular farming system enabling agricultural diversification and providing several ecosystem services. In agroforestry systems, soil organic carbon (SOC) stocks are generally increased, but it is difficult to disentangle the different factors responsible for this storage. Organic carbon (OC) inputs to the soil may be larger, but SOC decomposition rates may be modified owing to microclimate, physical protection, or priming effect from roots, especially at depth. We used an 18-year-old silvoarable system associating hybrid walnut trees (Juglans regia × nigra) and durum wheat (Triticum turgidum L. subsp. durum), and an adjacent agricultural control plot to quantify all OC inputs to the soil – leaf litter, tree fine root senescence, crop residues, and tree row herbaceous vegetation –, and measure SOC stocks down 2 m depth at varying distances from the trees. We then proposed a model that simulates SOC dynamics in agroforestry accounting for both the whole soil profile and the lateral spatial heterogeneity. OC inputs to soil were increased by about 40 % (&amp;plus;1.11 t C ha−1 yr−1) down to 2 m depth in the agroforestry plot compared to the control, resulting in an additional SOC stock of 6.3 t C ha−1 down to 1 m depth. The model described properly the measured SOC stocks and distribution with depth. It showed that the increased inputs of fresh biomass to soil explained the observed additional SOC storage in the agroforestry plot. Moreover, modeling revealed a strong priming effect that would reduce the potential SOC storage due to higher organic inputs in the agroforestry system by 75 to 90 %. This result questions the potential of soils to store large amounts of carbon, especially at depth. Deep-rooted trees modify OC inputs to soil, a process that deserves further studies given its potential effects on SOC dynamics.

scholarly journals Prospek Pengembangan Agroforestri Berbasis Kopi di Indonesia

Perspektif ◽  
2016 ◽  
Vol 14 (2) ◽  
pp. 135 ◽  
Author(s):  
HANDI SUPRIADI ◽  
DIBYO PRANOWO
Keyword(s):  
Venture Capital ◽  
Agricultural Land ◽  
Community Forestry ◽  
Agroforestry Systems ◽  
Pests And Diseases ◽  
Central Java ◽  
The Status ◽  
Income Development ◽  
Cultivation Technology ◽  
Role Based

<div><p>ABSTRAK</p><p>Keterbatasan lahan pertanian mendorong masyarakat/ petani membuka lahan baru di kawasan hutan, dengan cara menebang dan membongkar tanaman hutan serta membakar sisa-sisa tanaman dan semak belukar, akibatnya lahan menjadi kritis. Salah satu upaya untuk mengatasi masalah tersebut adalah melalui penerapan sistem agroforestri berbasis kopi. Agroforestri berbasis kopi yang sudah dikembangkan petani berperan dalam : (1) Konservasi lahan, air dan keanekaragaman hayati, (2) Penambahan unsur hara lahan, (3) Pengendalian iklim mikro, (4) Penambahan cadangan karbon (5) Menekan serangan hama dan penyakit dan (6) Peningkatan pendapatan petani. Agroforestri berbasis kopi telah dipraktekkan oleh petani pada berbagai wilayah di Indonesia, diantaranya di Lampung Barat (pola hutan kemasyarakatan dan hutan desa), Jawa Barat dan Jawa Tengah (pola pengelolaan hutan bersama masyarakat). Tantangan/masalah yang dijumpai pada agroforestri berbasis kopi diantaranya (1) Tingkat pengetahun petani tentang budidaya agroforestri berbasis kopi yang masih rendah, (2) Terbatasnya modal usaha dan (3) Ketidakpastian status lahan usaha. Upaya untuk mengatasi masalah tersebut dapat dilalukan melalui pelatihan dan pendampingan teknologi budidaya, bantuan modal usaha dan kepastian hukum status lahan. Pengembangan agroforesti berbasis kopi diarahkan pada dikawasan hutan milik Perum Perhutani, hutan kemasyarakan (HKm) dan hutan desa (HD) yang luasnya masing-masing 2.250.172; 2.500.000 dan 500.000 ha. Makalah ini bertujuan untuk mengidentifikasi peran agroforestri berbasis kopi terhadap lingkungan, dan ekonomi petani serta prospek pengembangannya di Indonesia.<br />Kata kunci: Tanaman kopi, agroforestri, tanaman penaung, lingkungan, pendapatan, pengembangan<br /><br />ABSTRACT<br />Prospects of Agroforestry Development Based on Coffee in Indonesia</p><p>Limitations of agricultural land to encourage people/ farmers open up new land in forest areas, by felling tree forests and forcing open plants and burning the remains of plants and shrubs as a result of land being serious critical. One effort to over come the problem is through the implementation of a coffee-based agroforestry systems. Role-based on agroforestry coffee farmers that have been developed, by farmers involve on (1) Conserve land, water and biodiversity, (2) Add of nutrients lands, (3) Control of microclimate, (4) Add of carbon stocks (5) Suppress pests and diseases, and (6) Enhancement to the income of farmers. Coffee-based agroforestry has been practiced by farmers in various regions in Indonesia, including in West Lampung (patterns of community forestry and forest villages), West Java and Central Java (forest management with communities). Challenge/problems encountered in the coffee-based agroforestry include (1) The level of knowledge of farmers on the cultivation of coffee-based agroforestry still low, (2) Lack of venture capital and (3) The uncertainty of the status of business land. Efforts to overcome these problems can through training and mentoring cultivation technology, venture capital assistance and legal certainty of land status. Development direction of coffee-based agroforestry can be done conduct of region-owned Perum Perhutani, community forestry (CF) and village forest (VF) which covers each 2.250.172; 2.500.000 and 500.000 ha. This paper aims to identify the role of coffee-based agroforestry on the environment, and the economy of farmers and development prospect in Indonesia.<br />Keywords: Coffee sp., agroforestry, shade plants, environment, income, development</p></div>

scholarly journals Rice cultivar selection in an agroforestry system through GGE-biplot and EBLUP

2021 ◽  
Vol 22 (11) ◽  
Author(s):  
Taufan Alam ◽  
Priyono Suryanto ◽  
Supriyanta Supriyanta ◽  
Panjisakti Basunanda ◽  
Rani Agustina Wulandari ◽  
...  
Keyword(s):  
Rice Cultivar ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Soil Types ◽  
Environment Interaction ◽  
Rice Cultivars ◽  
Gge Biplot ◽  
Genotype By Environment ◽  
Cultivar Selection ◽  
Melaleuca Cajuputi

Abstract. Alam T, Suryanto P, Supriyanta, Basunanda P, Wulandari RA, Kastono D, Widyawan MH, Nurmansyah, Taryono. 2021. Rice cultivar selection in an agroforestry system through GGE-biplot and EBLUP. Biodiversitas 22: 4750-4757. Genotype-by-environment interaction (GEI) causes differences in the productivity of rice cultivars in agroforestry systems. For this reason, the stability of rice cultivars is an important aspect that should be considered before a cultivar is recommended to farmers. Superior genotypes and ideal environments are commonly identified using two statistical models, namely, genotype–genotype-by-environment biplot (GGE-biplot) and empirical best linear unbiased prediction (EBLUP). In this study, 15 rice cultivars were evaluated in terms of their productivity and stability in three soil types (Lithic Haplusterts, Ustic Epiaquerts, and Vertic Haplustalfs) in an agroforestry system with kayu putih (Melaleuca cajuputi) in 2019 and 2020 at the Menggoran Forest Resort, Playen Forest Section, Yogyakarta Forest Management District, Indonesia. The cultivars were treated as random effects to select and obtain the EBLUP of the best cultivars in each soil type. The EBLUP revealed that Situ Patenggang showed the highest yields of 4.887 and 5.456 tons ha?1 in Lithic Haplusterts and Vertic Haplustalfs, respectively. GM 28 exhibited the highest yield of 6.492 tons ha?1 in Ustic Epiaquerts. Ciherang, GM 2, GM 8, GM 11, GM 28, Inpari 6 Jete, Inpari 33, IR-64, and Way Apo Buru were classified as stable and fairly stable cultivars, whereas the other cultivars were unstable. Therefore, rice cultivars with high yields in specific soil types should be selected.

scholarly journals Predictive Models to Estimate Carbon Stocks in Agroforestry Systems

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1240
Author(s):  
Maria Fernanda Magioni Marçal ◽  
Zigomar Menezes de Souza ◽  
Rose Luiza Moraes Tavares ◽  
Camila Viana Vieira Farhate ◽  
Stanley Robson Medeiros Oliveira ◽  
...  
Keyword(s):  
Land Use ◽  
Random Forest ◽  
Carbon Stock ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Forest Fragment ◽  
Random Forest Algorithm ◽  
Land Use Systems ◽  
Physical And Chemical Variables ◽  
Physical And Chemical

This study aims to assess the carbon stock in a pasture area and fragment of forest in natural regeneration, given the importance of agroforestry systems in mitigating gas emissions which contribute to the greenhouse effect, as well as promoting the maintenance of agricultural productivity. Our other goal was to predict the carbon stock, according to different land use systems, from physical and chemical soil variables using the Random Forest algorithm. We carried out our study at an Entisols Quartzipsamments area with a completely randomized experimental design: four treatments and six replites. The treatments consisted of the following: (i) an agroforestry system developed for livestock, (ii) an agroforestry system developed for fruit culture, (iii) a conventional pasture, and (iv) a forest fragment. Deformed and undeformed soil samples were collected in order to analyze their physical and chemical properties across two consecutive agricultural years. The response variable, carbon stock, was subjected to a boxplot analysis and all the databases were used for a predictive modeling which in turn used the Random Forest algorithm. Results led to the conclusion that the agroforestry systems developed both for fruit culture and livestock, are more efficient at stocking carbon in the soil than the pasture area and forest fragment undergoing natural regeneration. Nitrogen stock and land use systems are the most important variables to estimate carbon stock from the physical and chemical variables of soil using the Random Forest algorithm. The predictive models generated from the physical and chemical variables of soil, as well as the Random Forest algorithm, presented a high potential for predicting soil carbon stock and are sensitive to different land use systems.

scholarly journals Gas exchange efficiency in Cocoa – Spanish elm agroforestry system in the northwest Antioquia, Colombia

2020 ◽  
Vol 73 (3) ◽  
pp. 9283-9291
Author(s):  
Juan Pablo Gómez-Yarce ◽  
Edna Rocío Mompotes-Largo ◽  
Aníbal López-Castro ◽  
Juan David Hernández-Arredondo ◽  
Oscar De Jesús Córdoba-Gaona
Keyword(s):  
Gas Exchange ◽  
Environmental Conditions ◽  
Block Design ◽  
Area Under The Curve ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Cordia Alliodora ◽  
Gas Exchange Parameters ◽  
Use Efficiency ◽  
Exchange Parameters

The cultivation of cocoa (Theobroma cacao L.) under agroforestry systems, generates beneficial environmental conditions for cocoa crop physiology. An experiment was conducted to evaluate the effect of shade trees (Spanish elm trees - Cordia alliodora (Ruiz & Pavon) Oken) planted along with cocoa (clone CCN51) under an agroforestry system on cocoa’s gas exchange parameters regarding the reduction of the light intensity over the cocoa-leaf canopy. The experiment was developed in the Centro de Investigación el Nus - Agrosavia, located in the municipality of San Roque, Antioquia. The experimental design used was a randomized complete block design for the cocoa planting distances from the first row of Spanish elm trees interfacing with the cocoa plantation (4 m, 7 m, 10 m, 13 m). The statistical analysis was performed by estimating the area under the curve (AUC) of each variable, using the trapezoid equation of the statistical environment SAS® 9.4, an analysis of variances was performed to determine if there were statistical differences between treatments, and Tukey’s test at 5% probability was used to estimated statistical differences between means. There were significant differences in the treatments regarding the net photosynthetic rate (A), stomatal conductance (gs), and transpiration rate (E). The highest values of gas exchange parameters were found in the plants located 13 m from elm trees, while the lowest values were presented at 4 m. Plants at 7 m and 10 m always showed intermediate values for all gas exchange parameters. In the same sense, plants at 13 m had a higher radiation use efficiency (RUE) compared to plants at 4 m. The arboreal component modified the environmental conditions on cocoa trees regarding its distribution, generating a differential response to the physiological behavior of cocoa plants.

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