Nitrogen balance and gap of a high yield tropical soybean crop under irrigation
Nitrogen (N) is the most extracted and exported element by the soybean crop. In high yield tropical environments with irrigation, little is known about N accumulation in different soybean plant organs as well as the N balance. The objective of this study was to characterize soybean growth, N accumul...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-09-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1233772/full |
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| author | Leandro Moraes Zambon Renan Caldas Umburanas Felipe Schwerz Felipe Schwerz Jackellyne Bruna Sousa Everton Servilho Teixeira Barbosa Letícia Pacheco Inoue Durval Dourado-Neto Klaus Reichardt Klaus Reichardt |
| author_facet | Leandro Moraes Zambon Renan Caldas Umburanas Felipe Schwerz Felipe Schwerz Jackellyne Bruna Sousa Everton Servilho Teixeira Barbosa Letícia Pacheco Inoue Durval Dourado-Neto Klaus Reichardt Klaus Reichardt |
| author_sort | Leandro Moraes Zambon |
| collection | DOAJ |
| description | Nitrogen (N) is the most extracted and exported element by the soybean crop. In high yield tropical environments with irrigation, little is known about N accumulation in different soybean plant organs as well as the N balance. The objective of this study was to characterize soybean growth, N accumulation in plant organs, N balance, and N gap in a high yield tropical environment. This study was performed in a homogeneous field, in a soil with low organic matter, with 20 kg ha-1 of N, under furrow fertilization. Evaluations were performed ten times, temporally distributed from emergence to senescence. The soybean cultivar used was ‘RK7518 IPRO’ and was sown with row spacing of 0.45 m and a seeding rate of 300,000 plants ha-1. Plant N partition, N from the biological N fixation (BNF), grain yield, crop harvest index (HI), N harvest index (NHI) with and without root contribution were evaluated. Also, at the grain filling stage the N gap was evaluated from the soil by difference between whole plant accumulated N and the amount of N from BNF. The average grain yield was 6,470 kg ha-1 and leads to a negative partial balance of N of -33.4 and -42.8 kg[N] ha-1 with and without roots, respectively. The N gap from the soil was 231.7 kg[N] ha-1. It is recommended to adopt techniques that increase the efficiency of BNF and the soil N accumulation to balance these production systems in the medium to long term. |
| first_indexed | 2024-03-11T21:20:03Z |
| format | Article |
| id | doaj.art-8ded445f85b64dfa87ada6cf95c2225a |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-03-11T21:20:03Z |
| publishDate | 2023-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-8ded445f85b64dfa87ada6cf95c2225a2023-09-28T09:07:31ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-09-011410.3389/fpls.2023.12337721233772Nitrogen balance and gap of a high yield tropical soybean crop under irrigationLeandro Moraes Zambon0Renan Caldas Umburanas1Felipe Schwerz2Felipe Schwerz3Jackellyne Bruna Sousa4Everton Servilho Teixeira Barbosa5Letícia Pacheco Inoue6Durval Dourado-Neto7Klaus Reichardt8Klaus Reichardt9Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilAgricultural Engineering Department, Federal University of Lavras (UFLA), Lavras, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilLuiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, BrazilCenter of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, BrazilNitrogen (N) is the most extracted and exported element by the soybean crop. In high yield tropical environments with irrigation, little is known about N accumulation in different soybean plant organs as well as the N balance. The objective of this study was to characterize soybean growth, N accumulation in plant organs, N balance, and N gap in a high yield tropical environment. This study was performed in a homogeneous field, in a soil with low organic matter, with 20 kg ha-1 of N, under furrow fertilization. Evaluations were performed ten times, temporally distributed from emergence to senescence. The soybean cultivar used was ‘RK7518 IPRO’ and was sown with row spacing of 0.45 m and a seeding rate of 300,000 plants ha-1. Plant N partition, N from the biological N fixation (BNF), grain yield, crop harvest index (HI), N harvest index (NHI) with and without root contribution were evaluated. Also, at the grain filling stage the N gap was evaluated from the soil by difference between whole plant accumulated N and the amount of N from BNF. The average grain yield was 6,470 kg ha-1 and leads to a negative partial balance of N of -33.4 and -42.8 kg[N] ha-1 with and without roots, respectively. The N gap from the soil was 231.7 kg[N] ha-1. It is recommended to adopt techniques that increase the efficiency of BNF and the soil N accumulation to balance these production systems in the medium to long term.https://www.frontiersin.org/articles/10.3389/fpls.2023.1233772/fullGlycine maxbiomass partitioningN balancesoil inorganic Nplant nutrition |
| spellingShingle | Leandro Moraes Zambon Renan Caldas Umburanas Felipe Schwerz Felipe Schwerz Jackellyne Bruna Sousa Everton Servilho Teixeira Barbosa Letícia Pacheco Inoue Durval Dourado-Neto Klaus Reichardt Klaus Reichardt Nitrogen balance and gap of a high yield tropical soybean crop under irrigation Frontiers in Plant Science Glycine max biomass partitioning N balance soil inorganic N plant nutrition |
| title | Nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| title_full | Nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| title_fullStr | Nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| title_full_unstemmed | Nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| title_short | Nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| title_sort | nitrogen balance and gap of a high yield tropical soybean crop under irrigation |
| topic | Glycine max biomass partitioning N balance soil inorganic N plant nutrition |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1233772/full |
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