Quinoa-olive agroforestry system assessment in semi-arid environments: Performance of an innovative system

Agroforestry is a promising way to sustain land use efficiency in semi-arid areas. In this study, we introduce quinoa as a drought- and salinity-tolerant crop in olive-based agroforestry. We investigated how the microclimate created by olive trees affects agronomic and biochemical traits in quinoa and evaluated the performance of this new olive-based agroforestry system in terms of land equivalent ratio (LER). Field experiments were carried out under two pedoclimatic conditions (S1) and (S2) using a randomized complete block design with two cropping systems (sole crop (SCS) and agroforestry (AFS) systems), four quinoa cultivars (Puno, Titicaca, ICBA-Q5, and ICBA-Q4) and one olive orchard as a control (OR) in each block. Our results show that AFS had lower grain yield (−45%), dry biomass (−49%), and crop water productivity (−44%), but higher plant height (12%), grain protein (4%), saponin (26%), total polyphenol (12%), and DPPH (9%) contents compared to SCS. The highest grain yield was recorded for Titicaca and ICBA-Q5 (1.6 t ha−1). The LER ranged from 1.57 to 2.07, indicating that the overall productivity was 57% to 107% higher in the agroforestry system compared with the monoculture. We suggest that quinoa–olive tree intercropping could be a promising agroecological practice under semi-arid conditions.

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Bibliographic Details
Main Authors: Abidi, lham, Daoui, Khalid, Abouabdillah, Aziz, Belqadi, Loubna, Mahyou, Hamid, Bazile, Didier, Douaik, Ahmed, Gaboun, Fatima, Sidikou, Abdel Aziz Hassane, Alaoui, Si Bennasseur
Format: article biblioteca
Language:eng
Published: MDPI
Subjects:F08 - Systèmes et modes de culture, F01 - Culture des plantes, systèmes agroforestiers, agroforesterie, agroécologie, adaptation aux changements climatiques, caractère agronomique, rendement des cultures, changement climatique, climat semi-aride, zone semi-aride, diversification, variété, innovation agricole, variété indigène, système de culture, systèmes d'innovation agricole, innovation, Olea europaea, Chenopodium quinoa, http://aims.fao.org/aos/agrovoc/c_330982, http://aims.fao.org/aos/agrovoc/c_207, http://aims.fao.org/aos/agrovoc/c_92381, http://aims.fao.org/aos/agrovoc/c_1374567058134, http://aims.fao.org/aos/agrovoc/c_210, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_1666, http://aims.fao.org/aos/agrovoc/c_14191, http://aims.fao.org/aos/agrovoc/c_6963, http://aims.fao.org/aos/agrovoc/c_2344, http://aims.fao.org/aos/agrovoc/c_8157, http://aims.fao.org/aos/agrovoc/c_408a8a4c, http://aims.fao.org/aos/agrovoc/c_32886, http://aims.fao.org/aos/agrovoc/c_1971, http://aims.fao.org/aos/agrovoc/c_19c25d71, http://aims.fao.org/aos/agrovoc/c_27560, http://aims.fao.org/aos/agrovoc/c_5339, http://aims.fao.org/aos/agrovoc/c_1531, http://aims.fao.org/aos/agrovoc/c_4940,
Online Access:http://agritrop.cirad.fr/608670/
http://agritrop.cirad.fr/608670/1/Abidi-2024_agronomy-14-00495_Quinoa%E2%80%93Olive%20Agroforestry%20System%20Assessment%20in%20Semi-Arid%20Environments_%20Performance%20of%20an%20Innovative%20System.pdf
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Summary:Agroforestry is a promising way to sustain land use efficiency in semi-arid areas. In this study, we introduce quinoa as a drought- and salinity-tolerant crop in olive-based agroforestry. We investigated how the microclimate created by olive trees affects agronomic and biochemical traits in quinoa and evaluated the performance of this new olive-based agroforestry system in terms of land equivalent ratio (LER). Field experiments were carried out under two pedoclimatic conditions (S1) and (S2) using a randomized complete block design with two cropping systems (sole crop (SCS) and agroforestry (AFS) systems), four quinoa cultivars (Puno, Titicaca, ICBA-Q5, and ICBA-Q4) and one olive orchard as a control (OR) in each block. Our results show that AFS had lower grain yield (−45%), dry biomass (−49%), and crop water productivity (−44%), but higher plant height (12%), grain protein (4%), saponin (26%), total polyphenol (12%), and DPPH (9%) contents compared to SCS. The highest grain yield was recorded for Titicaca and ICBA-Q5 (1.6 t ha−1). The LER ranged from 1.57 to 2.07, indicating that the overall productivity was 57% to 107% higher in the agroforestry system compared with the monoculture. We suggest that quinoa–olive tree intercropping could be a promising agroecological practice under semi-arid conditions.