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Registros recuperados: 11 | |
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LOPES, M. N.; CÂNDIDO, M. J. D.; SILVEIRA, W. M.; MARANHÃO, T. D.; SOARES, I.; POMPEU, R. C. F. F.; SILVA, R. G. da; CARNEIRO, M. S. de S.. |
Abstract: The present study evaluated the accumulation and export of nutrients in cactus pear (Opuntia ficus-indica) cv. Gigante, fertilized with combinations of nitrogen (10, 70, 100, 130, and 190 kg ha -1 year -1 N) and phosphorus (10, 70, 100, 130, and 190 kg ha -1 year -1 P2O5) under annual and biennial harvests, in Quixadá and Tejuçuoca, using a split-plot randomized block design with four replications. In Quixadá, under annual and biennial harvests, the following orders of accumulation of macronutrients (in kg ha -1 year -1) were found, respectively: K (98.8) > Ca (87.2) > N (46.7) > Mg (26.8) > S (18.4) > P (2.04) and Ca (33.5) > K (31.1) > S (18.6) > N (12.9) > Mg (10.5) > P (0.81). In Tejuçuoca, under annual and... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Harvest frequency; Fertilization; Nutritional demand; Acúmulo de macronutriente; Palma Forrageira; Nutrição Vegetal; Nutriente; Crescimento; Macroelemento; Exigência Nutricional; Plant nutrition; Plant micronutrients; Nutrient requirements. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094339 |
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MARANHÃO, T. D.; CÂNDIDO, M. J. D.; SOARES, I.; LOPES, M. N.; SILVA, R. R. da; POMPEU, R. C. F. F.; LACERDA, G. F.; SOUSA, W. do N.. |
Abstract: The objective of this study was to evaluate the macronutrient accumulations in leaf, stem, and shoot of elephant grass cv. Roxo. The treatments consisted of seven growth ages (9, 18, 27, 36, 45, 54, and 63 days) and three growing seasons (rainy, transition, and dry). A completely randomized design and a split-plot time arrangement were used, where the ages were the plots and the seasons the subplots, with three replications. Interaction between the factors age and season of cultivation for the contents and the daily accumulation rates of N, P, K, Ca, Mg, and S in leaf, stem, and shoot fractions were calculated. The margins of daily accumulation of nutrients N, P, K, Mg, and S presented positive linear behavior in all seasons studied; however,... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Mineral nutrition; Nutrição mineral; Marcha de absorção; Absorption run; Macronutriente; Capim Elefante; Pennisetum Purpureum; Macroelemento; Nutriente; Absorção de Nutrientes; Nutrição Vegetal; Plant nutrition; Nutrients; Seasons. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1097057 |
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PEREIRA, F. F.; CARDOSO, C. R. G.; LUCCHETTA, J. T.; OLIVEIRA, H. N. de; RAMOS, L. F. N; ALENCAR, M. X.; VEIGA, V. C.; LEITE, M. K.; SOARES, I.; MENDES, J. E. P.. |
bitstream/item/202997/1/36899.pdf |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Palmistichus elaeisis; Trichospilus diatraeae; Tetrastichus howardi; Controle Biológico; Eucalipto; Biological control; Entomology. |
Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113194 |
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BARRETO, J. H. B.; SOARES, I.; PEREIRA, J. A.; BEZERRA, A. M. E.; DEUS, J. A. L. de.. |
Nitrogen is the most important nutrient for rice (Oryza sativa L) yields. This study aimed to evaluate the response of upland rice cultivars to N rate and application times in a randomized block design, in subdivided plots with four replications. The studied factors were five rice cultivars (BRS MG Curinga, BRS Monarca, BRS Pepita, BRS Primavera, and BRS Sertaneja), three application times (100 % at planting, 50 % at planting - 50 % at tillering and 100 % at tillering) and four N rates (0, 50, 100, and 150 kg ha-1). All cultivars responded to increased rates and different times of N application, especially BRS Primavera and BRS Sertaneja, which were the most productive when 50 % N rates were applied at sowing and 50 % at tillering. The response of cultivar... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Oryza sativa; Adubação nitrogenada; Componentes de produção. |
Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/925505 |
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Registros recuperados: 11 | |
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