Biblioteca Digital de VanguardiaAgronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass : (Brachiaria brizantha)
The decanted phosphate (DP) is an environmental liability for the fertilizer industries and its use as a phosphate fertilizer has been suggested in agriculture. However, there are few researches that studies its efficiency. In this sense, this experiment was conducted in a greenhouse with the main o...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2018
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| Materias: | |
| Acceso en línea: | http://bdigital.uncu.edu.ar/11671 |
| _version_ | 1782342554798260224 |
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| author | Tiraboschi Leal, Fábio Mendes Coutinho, Edson Luiz Coelho França, Ana Beatriz |
| author_facet | Tiraboschi Leal, Fábio Mendes Coutinho, Edson Luiz Coelho França, Ana Beatriz |
| author_sort | Tiraboschi Leal, Fábio |
| collection | Repositorio |
| description | The decanted phosphate (DP) is an environmental liability for the fertilizer industries
and its use as a phosphate fertilizer has been suggested in agriculture. However, there are
few researches that studies its efficiency. In this sense, this experiment was conducted
in a greenhouse with the main objective to evaluate the agronomic efficiency and the
relative economic efficiency of decanted phosphate (DP) in the presence and absence of
lime during three growth periods of Brachiaria brizantha cv. Marandu (marandu grass). In
addition, the critical levels of P were determined in soil and shoots of plants. The indices
Equivalent Triple Superphosphate medium (EqTS medium) e Relative Economic Efficiency
(REE) were calculated in order to evaluate the efficiency of DP and triple superphosphate
(TS). The critical levels of P were set when relative production was 90%. The DP efficiency
indices were more than 100% when not applied liming. The liming reduces the agronomic
and economic efficiency of DP. The P critical levels in soil and shoots of the marandu grass
were 15 mg dm-3 and 1.2 g kg-1, respectively. |
| format | Artículo |
| id | uncu-11671 |
| institution | Biblioteca Digital - UNCUYO |
| language | Inglés |
| publishDate | 2018 |
| publisher | Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
|
| record_format | ojs |
| spelling | uncu-116712019-03-01T15:32:44Z Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass : (Brachiaria brizantha) Eficiencia agronómica y económica del fosfato decantado como función del encalado en hierba marandu : (Brachiaria brizantha) Tiraboschi Leal, Fábio Mendes Coutinho, Edson Luiz Coelho França, Ana Beatriz Fosfatos Brachiaria brizantha pH del suelo Fosfato decantado Índices de eficiencia Marandu Nível crítico de P. Brachiaria brizantha Phosphorus Residual effect Critical level of P. Brachiaria brizantha The decanted phosphate (DP) is an environmental liability for the fertilizer industries and its use as a phosphate fertilizer has been suggested in agriculture. However, there are few researches that studies its efficiency. In this sense, this experiment was conducted in a greenhouse with the main objective to evaluate the agronomic efficiency and the relative economic efficiency of decanted phosphate (DP) in the presence and absence of lime during three growth periods of Brachiaria brizantha cv. Marandu (marandu grass). In addition, the critical levels of P were determined in soil and shoots of plants. The indices Equivalent Triple Superphosphate medium (EqTS medium) e Relative Economic Efficiency (REE) were calculated in order to evaluate the efficiency of DP and triple superphosphate (TS). The critical levels of P were set when relative production was 90%. The DP efficiency indices were more than 100% when not applied liming. The liming reduces the agronomic and economic efficiency of DP. The P critical levels in soil and shoots of the marandu grass were 15 mg dm-3 and 1.2 g kg-1, respectively. El fosfato decantado (FD) es una responsabilidad ambiental para las industrias de fertilizantes y se ha sugerido su uso como fertilizante de fosfato en la agricultura. Sin embargo, hay pocas investigaciones que estudien su eficacia. En este sentido, este experimento se realizó en un invernadero con el objetivo principal de evaluar la eficiencia agronómica y la eficiencia económica relativa del fosfato decantado (FD) en presencia y ausencia de cal durante tres períodos de crecimiento de Brachiaria brizantha cv. Marandu (hierba marandu). Los niveles críticos de P se determinaron en el suelo y los brotes de las plantas. El índice equivalente superfosfato triple medio (EqST medio) y la eficiencia económica relativa (EER) se calcularon para evaluar la eficacia de FD y superfosfato triple (ST). Los niveles críticos de P se establecieron cuando la producción relativa fue del 90%. Los índices de eficiencia del FD fueron más del 100% cuando no se aplicó el encalado. El encalado reduce la eficiencia agronómica y económica de FD. Los niveles críticos de P en el suelo y en la parte aérea de la hierba marandu fueron 15 mg dm-3 y 1,2 g kg-1, respectivamente. Fil: Tiraboschi Leal, Fábio. Universidad Estadual de Sao Paulo (Brasil) Fil: Mendes Coutinho, Edson Luiz. Universidad Estadual de Sao Paulo (Brasil) Fil: Coelho França, Ana Beatriz. Universidad Estadual de Sao Paulo (Brasil) Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 50, no. 2 Revista de la Facultad de Ciencias Agrarias, Vol. 50, no. 2 2018-12-18 eng Inglés http://bdigital.uncu.edu.ar/11479 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/11671 |
| spellingShingle | Fosfatos Brachiaria brizantha pH del suelo Fosfato decantado Índices de eficiencia Marandu Nível crítico de P. Brachiaria brizantha Phosphorus Residual effect Critical level of P. Brachiaria brizantha Tiraboschi Leal, Fábio Mendes Coutinho, Edson Luiz Coelho França, Ana Beatriz Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass : (Brachiaria brizantha) |
| title | Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (Brachiaria brizantha) |
| title_full | Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (Brachiaria brizantha) |
| title_fullStr | Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (Brachiaria brizantha) |
| title_full_unstemmed | Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (Brachiaria brizantha) |
| title_short | Agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (Brachiaria brizantha) |
| title_sort | agronomic and economic efficiency of the decanted phosphate as function of the liming in marandu grass
: (brachiaria brizantha) |
| topic | Fosfatos Brachiaria brizantha pH del suelo Fosfato decantado Índices de eficiencia Marandu Nível crítico de P. Brachiaria brizantha Phosphorus Residual effect Critical level of P. Brachiaria brizantha |
| url | http://bdigital.uncu.edu.ar/11671 |