The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation
Intercropping has the potential to improve phosphorus (P) uptake and crop growth, but the potential benefits and relative contributions of root morphology and arbuscular mycorrhizal fungi (AMF) colonization are largely unknown for the intercropping of rice and soybean under dry cultivation. Both fie...
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2025-01-01
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| author | Huimin Ma Hongcheng Zhang Qian Gao Shilin Li Yuanyuan Yu Jiaying Ma Congcong Zheng Meng Cui Zhihai Wu Hualiang Zhang |
| author_facet | Huimin Ma Hongcheng Zhang Qian Gao Shilin Li Yuanyuan Yu Jiaying Ma Congcong Zheng Meng Cui Zhihai Wu Hualiang Zhang |
| author_sort | Huimin Ma |
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| description | Intercropping has the potential to improve phosphorus (P) uptake and crop growth, but the potential benefits and relative contributions of root morphology and arbuscular mycorrhizal fungi (AMF) colonization are largely unknown for the intercropping of rice and soybean under dry cultivation. Both field and pot experiments were conducted with dry-cultivated rice (<i>Oryza sativa</i> L.) and soybean (<i>Glycine max</i> L. Merr.) grown alone or intercropped under two P levels. Two root separation modes between rice and soybean were employed to explore the contribution of AMF association and root plasticity on P uptake in intercrops. The results showed that rice/soybean intercropping resulted in a notable increase in the total biomass and yield compared to monoculture in the field. In the potted experiment, compared to the plastic root separation treatment (PS), the no root separation treatment (NS) increased the total biomass and P uptake by 9.4% and 19.9%, irrespective of the P levels. This was primarily attributable to a considerable enhancement in biomass and phosphorus uptake in soybean by 40.4% and 49.7%, which offset a slight decline in the rice of NS compared to PS by 26.8% and 18.0%, respectively. The results of random forest analysis indicate that the P uptake by the dominant species, soybean, was mainly contributed by root morphology, while rice was more dependent on AMF colonization in the intercropping system. Therefore, dry-cultivated rice/soybean intercropping enhances P uptake and productivity by leveraging complementary belowground strategies, with soybean benefiting primarily from root morphological adjustments and rice relying more on arbuscular mycorrhizal fungi colonization. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-6c808b4c5dcc41c6ab1769e6374851442025-01-10T13:19:47ZengMDPI AGPlants2223-77472025-01-0114110610.3390/plants14010106The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry CultivationHuimin Ma0Hongcheng Zhang1Qian Gao2Shilin Li3Yuanyuan Yu4Jiaying Ma5Congcong Zheng6Meng Cui7Zhihai Wu8Hualiang Zhang9Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaINRAE, UMR ISPA, 33140 Villenave d’Ornon, FranceState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, ChinaFaculty of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaZhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, ChinaIntercropping has the potential to improve phosphorus (P) uptake and crop growth, but the potential benefits and relative contributions of root morphology and arbuscular mycorrhizal fungi (AMF) colonization are largely unknown for the intercropping of rice and soybean under dry cultivation. Both field and pot experiments were conducted with dry-cultivated rice (<i>Oryza sativa</i> L.) and soybean (<i>Glycine max</i> L. Merr.) grown alone or intercropped under two P levels. Two root separation modes between rice and soybean were employed to explore the contribution of AMF association and root plasticity on P uptake in intercrops. The results showed that rice/soybean intercropping resulted in a notable increase in the total biomass and yield compared to monoculture in the field. In the potted experiment, compared to the plastic root separation treatment (PS), the no root separation treatment (NS) increased the total biomass and P uptake by 9.4% and 19.9%, irrespective of the P levels. This was primarily attributable to a considerable enhancement in biomass and phosphorus uptake in soybean by 40.4% and 49.7%, which offset a slight decline in the rice of NS compared to PS by 26.8% and 18.0%, respectively. The results of random forest analysis indicate that the P uptake by the dominant species, soybean, was mainly contributed by root morphology, while rice was more dependent on AMF colonization in the intercropping system. Therefore, dry-cultivated rice/soybean intercropping enhances P uptake and productivity by leveraging complementary belowground strategies, with soybean benefiting primarily from root morphological adjustments and rice relying more on arbuscular mycorrhizal fungi colonization.https://www.mdpi.com/2223-7747/14/1/106rice/soybean intercroppingP uptakeroot morphologyAMF colonization |
| spellingShingle | Huimin Ma Hongcheng Zhang Qian Gao Shilin Li Yuanyuan Yu Jiaying Ma Congcong Zheng Meng Cui Zhihai Wu Hualiang Zhang The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation Plants rice/soybean intercropping P uptake root morphology AMF colonization |
| title | The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation |
| title_full | The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation |
| title_fullStr | The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation |
| title_full_unstemmed | The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation |
| title_short | The Relative Contribution of Root Morphology and Arbuscular Mycorrhizal Fungal Colonization on Phosphorus Uptake in Rice/Soybean Intercropping Under Dry Cultivation |
| title_sort | relative contribution of root morphology and arbuscular mycorrhizal fungal colonization on phosphorus uptake in rice soybean intercropping under dry cultivation |
| topic | rice/soybean intercropping P uptake root morphology AMF colonization |
| url | https://www.mdpi.com/2223-7747/14/1/106 |
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