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| Bastos, Marília Camotti; Reissmann, Carlos Bruno; Keseker, Jéssica Fernandes; Pauletti, Volnei; Gaiad, Sérgio; Sturion, José Alfredo. |
| Yerba mate is largely used to produce drinks to human consume. In Spring the plants develop tender young leaves that could represent a new market niche in the yerba-mate industry; this period is called as ”pressafrinha” in this study. This study aimed to analyze the total and hydro soluble nutritional values of young leaves collected in the Spring season and its nutritional potential for human consumption. To represent the ”pressafrinha” young leaves, the collected vegetal material was limited to the third terminal bud. The total and hydro soluble chemical analysis of leaves in the provenances Cascavel (progeny 174), Ivaí (progeny 6), Barão de Cotegipe (progenies 68 and 69) included the following elements: P, K, Ca, Mg, Na, Fe, Mn, Cu and Zn. The content... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrição mineral de plantas; Nutrição humana; Genética Vegetal Ilex paraguariensis; Bevarages; Nutritional recommendations Ilex paraguariensis; Bebida; Recomendações nutricionais. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/594 |
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| Dunaiski, Felipe Antico; Pauletti, Volnei; Motta, Antônio Carlos Vargas; Gotz, Lenir Fátima. |
| Dendrocalamus asper, known as giant bamboo or bamboo-bucket, has been used as a substitute for wood and fiber, due mainly to its wide availability, rapid growth rate, short cycle and traditional use as construction material. In general, its cultivation is carried out on phosphorus-deficient soils, using vegetative propagation, mainly from cuttings. Thus, the aim of this study was to evaluate the effect of fertilization with phosphorus doses on the biomass allocation in roots, leaves and stems and on the level and content of P in leaves and roots of bamboo cuttings. The experiment was conducted in a greenhouse, using soil with low P content (2.4 mg dm-3). The treatments consisted of six doses of phosphorus (0, 20, 40, 80, 160 e 320 kg ha-1 of P2O5). The... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2019 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/22666 |
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| Moreira, Silvino Guimarães; Kiehl, Jorge de Castro; Prochnow, Luís Ignácio; Pauletti, Volnei; Martin-Neto, Ladislau; Resende, Alvaro Vilela de. |
| The effect of tillage system (NT-no tillage; CT-conventional tillage; MT-minimum tillage; and NT/scarification, every three years) on soybean nutrient availability and yield was evaluated on Oxisol after 12 years of cultivation. Soil samples were collected at depths of 0.00-0.05, 0.05-0.10, and 0.10-0.20 m and were analyzed for P, K, Ca, Mg, carbon (C), organic matter (OM), pH value, potential CEC, base saturation (BS%), and number of semiquinone organic radicals. The macronutrient concentration in the leaves and amount accumulated in the plants at the blooming stage were determined, as well as the yield of the two soybean crops. The soil pH value, BS% and K, Ca, and Mg concentrations were not influenced by the tillage system. The soil P and OM in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: No tillage; Cropping systems; Organic matter.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42973 |
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| Moreira, Silvino Guimarães; Prochnow, Luís Ignácio; Pauletti, Volnei; Silva, Bruno Montoani; Kiehl, Jorge de Castro; Silva, Carine Gregório Machado. |
| The effect of liming on the availability of micronutrients to soybean cultivated during different numbers of years under no tillage (NT) was investigated. The treatments consisted of the number of years under NT (three, six, and nine years) and five rates of lime (0, 33, 67 and 100% of the amount calculated to raise soil base saturation to 70%) broadcast on soil surface plus the rate of 100% broadcast with incorporation in the 0-0.20 m layer of a clayey Red Oxisol. Soil and leaf samples were collected at two vegetative stages of the crop (vegetative V4 and blossoming R2). The soil was sampled at depths of 0-0.05, 0.05-0.10, 0.10-0.20, and 0.20-0.30 m. Surface liming had little effect on extractable soil micronutrient and nutrient concentrations in soybean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Copper; Iron; Manganese; Zinc; No till Fertilidade do solo. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30691 |
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