Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds
Sulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response to S fertilization. The objectives of this study were to: (i) evaluate seed S an...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.sciencedirect.com/science/article/pii/S0378429012002377#! http://hdl.handle.net/20.500.12123/2267 https://doi.org/10.1016/j.fcr.2012.07.011 |
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| author | Salvagiotti, Fernando Ferraris, Gustavo Nestor Quiroga, Alberto Raul Barraco, Miriam Raquel Vivas, Hugo Silverio Prystupa, Pablo Echeverria, Hernan Eduardo Gutierrez Boem, Flavio Hernán |
| author_browse | Barraco, Miriam Raquel Echeverria, Hernan Eduardo Ferraris, Gustavo Nestor Gutierrez Boem, Flavio Hernán Prystupa, Pablo Quiroga, Alberto Raul Salvagiotti, Fernando Vivas, Hugo Silverio |
| author_facet | Salvagiotti, Fernando Ferraris, Gustavo Nestor Quiroga, Alberto Raul Barraco, Miriam Raquel Vivas, Hugo Silverio Prystupa, Pablo Echeverria, Hernan Eduardo Gutierrez Boem, Flavio Hernán |
| author_sort | Salvagiotti, Fernando |
| collection | INTA Digital |
| description | Sulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response to S fertilization. The objectives of this study were to: (i) evaluate seed S and N:S ratio as a tool for identifying S deficient soybean crops in field conditions and (ii) determine shifts in stoichiometric relationships among nitrogen (N), phosphorus (P) and S in soybean seeds which can be used for identifying S responsive sites under field conditions. Seed samples from 20 field experiments designed to explore response to S fertilization in soybean were collected in a large area in the Argentinean Pampas region. Seed yield (SY) and P (%P), S (%S) and N (%N) concentration in seeds were determined. Different data analyses were tested in order to find an S deficiency index. Moderate SY responses to S fertilization were observed in the present study (i.e. relative SY was never below 75%). seed S concentration increased in response to S fertilization in most responsive sites, and N:S ratio was governed by variations in seed S concentration. Stoichiometric relationships were more accurate for identifying S responsive sites than using single variables (e.g. seed S concentration or N:S). The isometric variations among N, P and S suggest that the accumulation of these nutrients is proportional in seed tissue. A significant increase in the intercept of the stoichiometric relationship between N and S in S deficient crops was observed. An S deficient index (SDI) was calculated based on this difference that can be used as a diagnostic tool for identifying S responsive sites in soybean. The present study shows a novel approach for using stoichiometric concepts in fertilizer management in soybean. |
| format | Artículo |
| id | INTA2267 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22672019-02-01T18:32:34Z Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds Salvagiotti, Fernando Ferraris, Gustavo Nestor Quiroga, Alberto Raul Barraco, Miriam Raquel Vivas, Hugo Silverio Prystupa, Pablo Echeverria, Hernan Eduardo Gutierrez Boem, Flavio Hernán Azufre Deficiencia de Minerales Soja Semillas Nitrógeno Sulphur Mineral Deficiencies Soybeans Seed Nitrogen Sulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response to S fertilization. The objectives of this study were to: (i) evaluate seed S and N:S ratio as a tool for identifying S deficient soybean crops in field conditions and (ii) determine shifts in stoichiometric relationships among nitrogen (N), phosphorus (P) and S in soybean seeds which can be used for identifying S responsive sites under field conditions. Seed samples from 20 field experiments designed to explore response to S fertilization in soybean were collected in a large area in the Argentinean Pampas region. Seed yield (SY) and P (%P), S (%S) and N (%N) concentration in seeds were determined. Different data analyses were tested in order to find an S deficiency index. Moderate SY responses to S fertilization were observed in the present study (i.e. relative SY was never below 75%). seed S concentration increased in response to S fertilization in most responsive sites, and N:S ratio was governed by variations in seed S concentration. Stoichiometric relationships were more accurate for identifying S responsive sites than using single variables (e.g. seed S concentration or N:S). The isometric variations among N, P and S suggest that the accumulation of these nutrients is proportional in seed tissue. A significant increase in the intercept of the stoichiometric relationship between N and S in S deficient crops was observed. An S deficient index (SDI) was calculated based on this difference that can be used as a diagnostic tool for identifying S responsive sites in soybean. The present study shows a novel approach for using stoichiometric concepts in fertilizer management in soybean. EEA Oliveros EEA Pergamino EEA Anguil EEA General Villegas EEA Rafaela EEA Balcarce Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina Fil: Ferraris, Gustavo Nestor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina Fil: Barraco, Miriam Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria General Villegas; Argentina Fil: Vivas, Hugo Silverio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Prystupa, Pablo. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentina Fil: Echeverria, Hernan Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentina 2018-04-18T12:11:20Z 2018-04-18T12:11:20Z 2012-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0378429012002377#! http://hdl.handle.net/20.500.12123/2267 0378-4290 https://doi.org/10.1016/j.fcr.2012.07.011 eng info:eu-repo/semantics/restrictedAccess application/pdf Field crops research 135 : 107-115. (August 2012) |
| spellingShingle | Azufre Deficiencia de Minerales Soja Semillas Nitrógeno Sulphur Mineral Deficiencies Soybeans Seed Nitrogen Salvagiotti, Fernando Ferraris, Gustavo Nestor Quiroga, Alberto Raul Barraco, Miriam Raquel Vivas, Hugo Silverio Prystupa, Pablo Echeverria, Hernan Eduardo Gutierrez Boem, Flavio Hernán Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title | Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title_full | Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title_fullStr | Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title_full_unstemmed | Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title_short | Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds |
| title_sort | identifying sulfur deficient fields by using sulfur content n s ratio and nutrient stoichiometric relationships in soybean seeds |
| topic | Azufre Deficiencia de Minerales Soja Semillas Nitrógeno Sulphur Mineral Deficiencies Soybeans Seed Nitrogen |
| url | https://www.sciencedirect.com/science/article/pii/S0378429012002377#! http://hdl.handle.net/20.500.12123/2267 https://doi.org/10.1016/j.fcr.2012.07.011 |
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