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	Provedor de dados BABT (2) Rev. Bras. Ciênc. Solo (1) Autor Rosolem,Ciro Antonio (2) Calonego,Juliano Carlos (1) Grannemann,Ivan (1) Mannigel,Anny Rosi (1) Marchetti,Marlene Estevão (1) Muniz,Antonio Saraiva (1) Nolla,Antonio (1) Porto,Simone Maria Altoé (1) Silva,Maria Anita Gonçalves da (1) Mais... Palavra-chave No till (3) Crop rotation (2) Calcium (1) Cover crops (1) Leaf chlorophyll (1) Magnesium (1) Nitrogen (1) Nitrogen fertilized (1) Potassium (1) Soil bases (1) Soil compaction (1) Soil water (1) Triticum aestivum (1) Zea mays (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2011 (3) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Least limiting water range in soil under crop rotations and chiseling Rev. Bras. Ciênc. Solo Calonego,Juliano Carlos; Rosolem,Ciro Antonio. Soil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalaria juncea) as cover crops preceding soybean (Glycine max) were repeated for three... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cover crops; Crop rotation; Soil compaction; No till; Soil water. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000300012 Monitoring and evaluation of need for nitrogen fertilizer topdressing for maize leaf chlorophyll readings and the relationship with grain yield BABT Silva,Maria Anita Gonçalves da; Muniz,Antonio Saraiva; Mannigel,Anny Rosi; Porto,Simone Maria Altoé; Marchetti,Marlene Estevão; Nolla,Antonio; Grannemann,Ivan. The study was carried out for two years in maize in succession to the wheat using no tillage system in a distroferric Red Latosol (Hapludox). Methods of management nitrogen fertilizer (120 kg ha-1) with ammonium sulphate were studied; the fertilizer was applied in maize sowing or in maize topdressing, and N with previous application in wheat sowing. In addition, leaf chlorophyll reading was used as an indicator for the need for topdressed nitrogen fertilizer. Nitrogen supply index (NSI) was shown to be effective at predicting need for topdressed nitrogen fertilizer for maize. The application of N improved the yield of the maize independent of the management system. The flowering stage was carried out at the appropriate time in order to estimate the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Nitrogen fertilized; Leaf chlorophyll; Crop rotation; No till; Zea mays; Triticum aestivum. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400004 Exchangeable basic cations and nitrogen distribution in soil as affected by crop residues and nitrogen BABT Rosolem,Ciro Antonio. In this work, a greenhouse experiment was conducted to study the effects of N fertilization and residues of pearl millet, black oats and oilseed radish on pH and Ca, Mg, K, NO3-, and NH4+ distribution within the profile of a Distroferric Red Latosol. The equivalent of 8 t ha-1 of plant residues were placed on soil surface. Lime was applied on the soil surface and nitrogen was applied over the straw at 0, 50, 100, and 150 mg kg-1, as ammonium nitrate. Corn was grown for 57 days. Calcium contents and pH in the soil profile were decreased by Pearl millet residue, while black oat and oilseed radish increased Ca contents and these effects are not related with Ca contents in residue tissue. However, the presence of plant residues increased nitrate, ammonium, and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Calcium; Magnesium; Nitrogen; Potassium; Soil bases; No till. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300003 Registros recuperados: 3 Primeira ... 1 ... Última

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