The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake
It has been shown that the joint application of phosphorus (P) and ammonium (N-NH<sup>+</sup><sub>4</sub>) increases maize root proliferation and P acquisition by maize in alkaline soils, but this has not been shown in acidic soils for legumes. A greenhouse experiment was con...
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MDPI AG
2022-06-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/6/880 |
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| author | Ciro Antonio Rosolem Thiago Barbosa Batista Patrícia Pereira Dias Laudelino Vieira da Motta Neto Juliano Carlos Calonego |
| author_facet | Ciro Antonio Rosolem Thiago Barbosa Batista Patrícia Pereira Dias Laudelino Vieira da Motta Neto Juliano Carlos Calonego |
| author_sort | Ciro Antonio Rosolem |
| collection | DOAJ |
| description | It has been shown that the joint application of phosphorus (P) and ammonium (N-NH<sup>+</sup><sub>4</sub>) increases maize root proliferation and P acquisition by maize in alkaline soils, but this has not been shown in acidic soils for legumes. A greenhouse experiment was conducted to assess the effect of the joint application of P and NH<sub>4</sub><sup>+</sup> on soybean root growth and P acquisition. Soybean was grown in glass-walled pots without P, with monoammonium phosphate (MAP) and triple super phosphate (TSP) applied on the soil surface or localized. The soil P increased irrespective of the P source and localization. The rhizosphere pH was decreased by MAP, while the soil bulk pH was not affected. The TSP increased the root length by 55% and MAP by 76% over the control, and the number of root tips increased by 21% with TSP, 58% with MAP applied on the soil surface, and 78% with MAP localized. The soybean dry matter, N and P uptake, and P use efficiency were increased by P fertilization, mainly with MAP localized. The joint application of P and ammonium decreases the soybean rhizosphere pH, which results in root proliferation early in the cycle, and eventually in higher P uptake and use efficiency. |
| first_indexed | 2024-03-10T00:40:43Z |
| format | Article |
| id | doaj.art-d4a0cf6e65f248238524e1a5a632e5a6 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T00:40:43Z |
| publishDate | 2022-06-01 |
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| spelling | doaj.art-d4a0cf6e65f248238524e1a5a632e5a62023-11-23T15:08:11ZengMDPI AGAgriculture2077-04722022-06-0112688010.3390/agriculture12060880The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P UptakeCiro Antonio Rosolem0Thiago Barbosa Batista1Patrícia Pereira Dias2Laudelino Vieira da Motta Neto3Juliano Carlos Calonego4Department of Crop Science, School of Agricultural Sciences, São Paulo State University, 3780 Universitaria Av., Botucatu 18610-034, BrazilDepartment of Crop Science, School of Agricultural Sciences, São Paulo State University, 3780 Universitaria Av., Botucatu 18610-034, BrazilDepartment of Crop Science, School of Agricultural Sciences, São Paulo State University, 3780 Universitaria Av., Botucatu 18610-034, BrazilDepartment of Crop Science, School of Agricultural Sciences, São Paulo State University, 3780 Universitaria Av., Botucatu 18610-034, BrazilDepartment of Crop Science, School of Agricultural Sciences, São Paulo State University, 3780 Universitaria Av., Botucatu 18610-034, BrazilIt has been shown that the joint application of phosphorus (P) and ammonium (N-NH<sup>+</sup><sub>4</sub>) increases maize root proliferation and P acquisition by maize in alkaline soils, but this has not been shown in acidic soils for legumes. A greenhouse experiment was conducted to assess the effect of the joint application of P and NH<sub>4</sub><sup>+</sup> on soybean root growth and P acquisition. Soybean was grown in glass-walled pots without P, with monoammonium phosphate (MAP) and triple super phosphate (TSP) applied on the soil surface or localized. The soil P increased irrespective of the P source and localization. The rhizosphere pH was decreased by MAP, while the soil bulk pH was not affected. The TSP increased the root length by 55% and MAP by 76% over the control, and the number of root tips increased by 21% with TSP, 58% with MAP applied on the soil surface, and 78% with MAP localized. The soybean dry matter, N and P uptake, and P use efficiency were increased by P fertilization, mainly with MAP localized. The joint application of P and ammonium decreases the soybean rhizosphere pH, which results in root proliferation early in the cycle, and eventually in higher P uptake and use efficiency.https://www.mdpi.com/2077-0472/12/6/880<i>Glycine max</i>root architecturephosphorus acquisitionphosphate fertilizer |
| spellingShingle | Ciro Antonio Rosolem Thiago Barbosa Batista Patrícia Pereira Dias Laudelino Vieira da Motta Neto Juliano Carlos Calonego The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake Agriculture <i>Glycine max</i> root architecture phosphorus acquisition phosphate fertilizer |
| title | The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake |
| title_full | The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake |
| title_fullStr | The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake |
| title_full_unstemmed | The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake |
| title_short | The Joint Application of Phosphorus and Ammonium Enhances Soybean Root Growth and P Uptake |
| title_sort | joint application of phosphorus and ammonium enhances soybean root growth and p uptake |
| topic | <i>Glycine max</i> root architecture phosphorus acquisition phosphate fertilizer |
| url | https://www.mdpi.com/2077-0472/12/6/880 |
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