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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
30/12/2016 |
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Data da última atualização: |
02/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATEUS, G. P.; CRUSCIOL, C. A. C.; PARIZ, C. M.; BORGHI, E.; COSTA, C.; MARTELLO, J. M.; FRANZLUEBBERS, A. J.; CASTILHOS, A. M. |
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Afiliação: |
APTA; UNESP; UNESP; EMERSON BORGHI, CNPMS; UNESP; UNESP; USDA; UNESP. |
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Título: |
Sidedress nitrogen application rates to sorghum intercropped with tropical perennial grasses. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Agronomy Journal, Madison, v. 108, n. 1, p. 433-447, 2016. |
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DOI: |
10.2134/agronj2015.0236 |
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Idioma: |
Inglês |
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Conteúdo: |
Intercropping sorghum [Sorghum bicolor (L.) Moench] with tropical perennial grasses and using the appropriate rate of sidedress N application can maximize grain yield (GY) and revenue and can improve land-use efficiency (LUE). The effects of monocropped sorghum (MS) or sorghum intercropped with palisadegrass (Urochloa brizantha cv. Marandu; SPG) or guineagrass (Panicum maximum cv. Mombaça; SGG) and sidedress N application rates of 0, 50, 100, and 200 kg ha?1 on leaf nutrient concentration, sorghum GY, revenue, and LUE were investigated during three growing seasons at Botucatu, SP, Brazil, on a clay, kaolinitic, thermic Typic Haplorthox. The SGG treatment had lower leaf N, P, and K concentrations and lower 1000-grain weight, shoot dry matter, and GY than MS and SPG at all sidedress N rates; MS and SPG at 200 kg ha?1 of sidedress N resulted in greater sorghum GYs (3.80 and 3.81 Mg ha?1, respectively). The forage dry matter production (FDMP) and crude protein of tropical perennial grasses were higher as a function of the sidedress N rate. The SGG treatment resulted in negative net profits for all sidedress N rates. The MS and SPG treatments (independent of sidedress N rates) resulted in similar net profits (approximately US$85 and $60 ha?1, respectively). The SPG treatment using 200 kg ha?1 of sidedress N resulted in a higher land equivalent ratio and relative N yield (1.27 and 123%, respectively) than SGG (0.96 and 107%, respectively). The SPG treatment with 200 kg ha?1 of sidedress N is the best option for increasing sorghum GY, revenue, and FDMP from autumn to part of the spring and for improving LUE. MenosIntercropping sorghum [Sorghum bicolor (L.) Moench] with tropical perennial grasses and using the appropriate rate of sidedress N application can maximize grain yield (GY) and revenue and can improve land-use efficiency (LUE). The effects of monocropped sorghum (MS) or sorghum intercropped with palisadegrass (Urochloa brizantha cv. Marandu; SPG) or guineagrass (Panicum maximum cv. Mombaça; SGG) and sidedress N application rates of 0, 50, 100, and 200 kg ha?1 on leaf nutrient concentration, sorghum GY, revenue, and LUE were investigated during three growing seasons at Botucatu, SP, Brazil, on a clay, kaolinitic, thermic Typic Haplorthox. The SGG treatment had lower leaf N, P, and K concentrations and lower 1000-grain weight, shoot dry matter, and GY than MS and SPG at all sidedress N rates; MS and SPG at 200 kg ha?1 of sidedress N resulted in greater sorghum GYs (3.80 and 3.81 Mg ha?1, respectively). The forage dry matter production (FDMP) and crude protein of tropical perennial grasses were higher as a function of the sidedress N rate. The SGG treatment resulted in negative net profits for all sidedress N rates. The MS and SPG treatments (independent of sidedress N rates) resulted in similar net profits (approximately US$85 and $60 ha?1, respectively). The SPG treatment using 200 kg ha?1 of sidedress N resulted in a higher land equivalent ratio and relative N yield (1.27 and 123%, respectively) than SGG (0.96 and 107%, respectively). The SPG treatment with 200 kg ha?1 of sid... Mostrar Tudo |
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Thesagro: |
Gramínea; Sorgo. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02339naa a2200241 a 4500
001 2059657
005 2017-03-02
008 2016 bl uuuu u00u1 u #d
024 7 $a10.2134/agronj2015.0236$2DOI
100 1 $aMATEUS, G. P.
245 $aSidedress nitrogen application rates to sorghum intercropped with tropical perennial grasses.$h[electronic resource]
260 $c2016
520 $aIntercropping sorghum [Sorghum bicolor (L.) Moench] with tropical perennial grasses and using the appropriate rate of sidedress N application can maximize grain yield (GY) and revenue and can improve land-use efficiency (LUE). The effects of monocropped sorghum (MS) or sorghum intercropped with palisadegrass (Urochloa brizantha cv. Marandu; SPG) or guineagrass (Panicum maximum cv. Mombaça; SGG) and sidedress N application rates of 0, 50, 100, and 200 kg ha?1 on leaf nutrient concentration, sorghum GY, revenue, and LUE were investigated during three growing seasons at Botucatu, SP, Brazil, on a clay, kaolinitic, thermic Typic Haplorthox. The SGG treatment had lower leaf N, P, and K concentrations and lower 1000-grain weight, shoot dry matter, and GY than MS and SPG at all sidedress N rates; MS and SPG at 200 kg ha?1 of sidedress N resulted in greater sorghum GYs (3.80 and 3.81 Mg ha?1, respectively). The forage dry matter production (FDMP) and crude protein of tropical perennial grasses were higher as a function of the sidedress N rate. The SGG treatment resulted in negative net profits for all sidedress N rates. The MS and SPG treatments (independent of sidedress N rates) resulted in similar net profits (approximately US$85 and $60 ha?1, respectively). The SPG treatment using 200 kg ha?1 of sidedress N resulted in a higher land equivalent ratio and relative N yield (1.27 and 123%, respectively) than SGG (0.96 and 107%, respectively). The SPG treatment with 200 kg ha?1 of sidedress N is the best option for increasing sorghum GY, revenue, and FDMP from autumn to part of the spring and for improving LUE.
650 $aGramínea
650 $aSorgo
700 1 $aCRUSCIOL, C. A. C.
700 1 $aPARIZ, C. M.
700 1 $aBORGHI, E.
700 1 $aCOSTA, C.
700 1 $aMARTELLO, J. M.
700 1 $aFRANZLUEBBERS, A. J.
700 1 $aCASTILHOS, A. M.
773 $tAgronomy Journal, Madison$gv. 108, n. 1, p. 433-447, 2016.
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