Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam?
In the Northern mountainous region of Vietnam, cassava–cowpea intercropping system has been widely promoted with support from the local agricultural department. However, cowpea yield is often limited because of a low Biological Nitrogen Fixation (BNF) activity due to its low natural nodulation and lack of available effective Rhizobium products. The aim of this study was to identify the most effective native rhizobia isolate nodulating cowpea with the potential to increase BNF and yield of cowpea. A greenhouse experiment was initially conducted with five treatments: three native rhizobia isolates (CMBP037, CMBP054, and CMBP065); a control (no inoculation and no N application); and N+ (no inoculation, application of N as KNO3). Field inoculations were carried out and the treatments were as follows: a control (no inoculation); CMBP (037+054) – a mixture of strains from Mau Dong; CMBP065 strain from Cat Thinh. CMBP054 and CMBP065 had the highest nodulation in the greenhouse (46.4 and 60.7 nodules plant−1, respectively) and were rated as effective with symbiotic efficiency (SEF) of 54.56 and 55.73%, respectively. In the field, CMBP (037+054) recorded significantly higher nodulation (19.4 nodules plant−1) than the control (11.7 nodules plant−1). CMBP (037+054) also increased cowpea shoot dry weight, shoot N, and yield by 28.6, 4.9, and 10.5%, respectively, compared to the uninoculated control. This effect was slope dependent (statistically significant in moderate and steep slope, not with gentle slope). Besides, the high expansion rate of intercropping with cowpea showed the high adoption level of these agroecological practices by local farmers. This study reveals the potential of native rhizobia inoculation to enhance soil fertility and sustainable agriculture in the Northern mountainous region of Vietnam and proposes enhanced efforts to promote the availability and utilization of effective inoculants for cowpea.
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Subjects: | P35 - Fertilité du sol, F08 - Systèmes et modes de culture, F61 - Physiologie végétale - Nutrition, Vigna unguiculata, culture intercalaire, Fixation biologique de l'azote, Rhizobium, rendement des cultures, agroécologie, système de culture, région d'altitude, http://aims.fao.org/aos/agrovoc/c_8247, http://aims.fao.org/aos/agrovoc/c_3910, http://aims.fao.org/aos/agrovoc/c_27742, http://aims.fao.org/aos/agrovoc/c_6563, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_92381, http://aims.fao.org/aos/agrovoc/c_1971, http://aims.fao.org/aos/agrovoc/c_3614, http://aims.fao.org/aos/agrovoc/c_8227, |
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dig-cirad-fr-5972922024-01-29T03:13:59Z http://agritrop.cirad.fr/597292/ http://agritrop.cirad.fr/597292/ Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? Nguyen Trung Thanh, Atieno Mary, Herrmann Laetitia, Nakasathien Sutkhet, Sarobol Ed, Wongkaew Arunee, Nguyen Kien Tri, Lesueur Didier. 2020. Experimental Agriculture, 56 (6) : 825-836.https://doi.org/10.1017/S0014479720000344 <https://doi.org/10.1017/S0014479720000344> Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? Nguyen, Trung Thanh Atieno, Mary Herrmann, Laetitia Nakasathien, Sutkhet Sarobol, Ed Wongkaew, Arunee Nguyen, Kien Tri Lesueur, Didier eng 2020 Experimental Agriculture P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 Viet Nam http://aims.fao.org/aos/agrovoc/c_8227 In the Northern mountainous region of Vietnam, cassava–cowpea intercropping system has been widely promoted with support from the local agricultural department. However, cowpea yield is often limited because of a low Biological Nitrogen Fixation (BNF) activity due to its low natural nodulation and lack of available effective Rhizobium products. The aim of this study was to identify the most effective native rhizobia isolate nodulating cowpea with the potential to increase BNF and yield of cowpea. A greenhouse experiment was initially conducted with five treatments: three native rhizobia isolates (CMBP037, CMBP054, and CMBP065); a control (no inoculation and no N application); and N+ (no inoculation, application of N as KNO3). Field inoculations were carried out and the treatments were as follows: a control (no inoculation); CMBP (037+054) – a mixture of strains from Mau Dong; CMBP065 strain from Cat Thinh. CMBP054 and CMBP065 had the highest nodulation in the greenhouse (46.4 and 60.7 nodules plant−1, respectively) and were rated as effective with symbiotic efficiency (SEF) of 54.56 and 55.73%, respectively. In the field, CMBP (037+054) recorded significantly higher nodulation (19.4 nodules plant−1) than the control (11.7 nodules plant−1). CMBP (037+054) also increased cowpea shoot dry weight, shoot N, and yield by 28.6, 4.9, and 10.5%, respectively, compared to the uninoculated control. This effect was slope dependent (statistically significant in moderate and steep slope, not with gentle slope). Besides, the high expansion rate of intercropping with cowpea showed the high adoption level of these agroecological practices by local farmers. This study reveals the potential of native rhizobia inoculation to enhance soil fertility and sustainable agriculture in the Northern mountainous region of Vietnam and proposes enhanced efforts to promote the availability and utilization of effective inoculants for cowpea. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/597292/7/597292.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1017/S0014479720000344 10.1017/S0014479720000344 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0014479720000344 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1017/S0014479720000344 |
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P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 http://aims.fao.org/aos/agrovoc/c_8227 P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 http://aims.fao.org/aos/agrovoc/c_8227 |
spellingShingle |
P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 http://aims.fao.org/aos/agrovoc/c_8227 P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 http://aims.fao.org/aos/agrovoc/c_8227 Nguyen, Trung Thanh Atieno, Mary Herrmann, Laetitia Nakasathien, Sutkhet Sarobol, Ed Wongkaew, Arunee Nguyen, Kien Tri Lesueur, Didier Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
description |
In the Northern mountainous region of Vietnam, cassava–cowpea intercropping system has been widely promoted with support from the local agricultural department. However, cowpea yield is often limited because of a low Biological Nitrogen Fixation (BNF) activity due to its low natural nodulation and lack of available effective Rhizobium products. The aim of this study was to identify the most effective native rhizobia isolate nodulating cowpea with the potential to increase BNF and yield of cowpea. A greenhouse experiment was initially conducted with five treatments: three native rhizobia isolates (CMBP037, CMBP054, and CMBP065); a control (no inoculation and no N application); and N+ (no inoculation, application of N as KNO3). Field inoculations were carried out and the treatments were as follows: a control (no inoculation); CMBP (037+054) – a mixture of strains from Mau Dong; CMBP065 strain from Cat Thinh. CMBP054 and CMBP065 had the highest nodulation in the greenhouse (46.4 and 60.7 nodules plant−1, respectively) and were rated as effective with symbiotic efficiency (SEF) of 54.56 and 55.73%, respectively. In the field, CMBP (037+054) recorded significantly higher nodulation (19.4 nodules plant−1) than the control (11.7 nodules plant−1). CMBP (037+054) also increased cowpea shoot dry weight, shoot N, and yield by 28.6, 4.9, and 10.5%, respectively, compared to the uninoculated control. This effect was slope dependent (statistically significant in moderate and steep slope, not with gentle slope). Besides, the high expansion rate of intercropping with cowpea showed the high adoption level of these agroecological practices by local farmers. This study reveals the potential of native rhizobia inoculation to enhance soil fertility and sustainable agriculture in the Northern mountainous region of Vietnam and proposes enhanced efforts to promote the availability and utilization of effective inoculants for cowpea. |
format |
article |
topic_facet |
P35 - Fertilité du sol F08 - Systèmes et modes de culture F61 - Physiologie végétale - Nutrition Vigna unguiculata culture intercalaire Fixation biologique de l'azote Rhizobium rendement des cultures agroécologie système de culture région d'altitude http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_27742 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_92381 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_3614 http://aims.fao.org/aos/agrovoc/c_8227 |
author |
Nguyen, Trung Thanh Atieno, Mary Herrmann, Laetitia Nakasathien, Sutkhet Sarobol, Ed Wongkaew, Arunee Nguyen, Kien Tri Lesueur, Didier |
author_facet |
Nguyen, Trung Thanh Atieno, Mary Herrmann, Laetitia Nakasathien, Sutkhet Sarobol, Ed Wongkaew, Arunee Nguyen, Kien Tri Lesueur, Didier |
author_sort |
Nguyen, Trung Thanh |
title |
Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
title_short |
Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
title_full |
Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
title_fullStr |
Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
title_full_unstemmed |
Does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of Vietnam? |
title_sort |
does inoculation with native rhizobia enhance nitrogen fixation and yield of cowpea through legume-based intercropping in the northern mountainous areas of vietnam? |
url |
http://agritrop.cirad.fr/597292/ http://agritrop.cirad.fr/597292/7/597292.pdf |
work_keys_str_mv |
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_version_ |
1792500077389938688 |