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| Cecílio Filho,Arthur B; Nascimento,Sandra MC; Silva,Alexsandra SN; Vargas,Pablo F. |
| ABSTRACT Sweet potato is a vegetable with great potential due to its versatility of use, which covers human food, animal feed and biofuels. However, it is still little studied, especially regarding mineral nutrition and potassium. Thus, a study was conducted to evaluate potassium fertilizer doses (0, 30, 60, 90, 120 and 150 kg/ha K2O) on mineral nutrition and yield of 'Beauregard' sweet potato in a typic Hapludult soil with low K level (0.3 mmolc/dm3). The experimental design was of randomized blocks with four repetitions. Harvest took place 123 days after seedling transplanting. Foliar K content, shoot, root and total dry matter, root total yield, root commercial yield, K accumulation, K content in the soil and K optimal economic dose were assessed. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Potassium fertilization; Economic dose.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000400588 |
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| Souza, Ênio Gomes Flôr; Cruz, Ellen Abreu da; Silva, Michelangelo de Oliveira; Barbosa de Souza Prates, Fabiano; Barros Júnior, Aurélio Paes; Bezerra Neto, Francisco. |
| The objective of this work was to determine the adequate nitrogen (N) dose via fertigation associated with the maximum economic production of maize for silage, in two agricultural crops (summer and winter), in the municipality of Canindé de São Francisco-SE, Brazil. The experimental design was in randomized blocks, with four replicates. The treatments consisted of four doses of N (0, 80, 160, and 240 kg ha-1) using urea. The cultivar planted was the hybrid Bt Feroz. The evaluated characteristics were as follows: shoot fresh and dry mass productivity, gross and net incomes, the rate of return and net profit margin. There was an interaction between N doses and agricultural crops for all variables. Higher agroeconomic efficiency in the production of maize for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Forage storage; Meteorological conditions; Production costs; Economic dose.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42458 |
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