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| Lima,Ronaldo C.; Mello,Luiz M. M. de; Carvalho,Morel de P. e; Lima,Cesar G. da R.; Mello,Arthur M. de. |
| A porosidade do solo é de extrema importância à produtividade agrícola, uma vez que, em condições adversas, pode dificultar a penetração das raízes e, consequentemente, limitar o adequado aproveitamento dos nutrientes e da água disponível. Na Fazenda Bonança, em Pereira Barreto - SP, em 2005, foi analisada a produtividade de forragem do milho (MSF), a macroporosidade (MA), a microporosidade (MI) e a porosidade total (PT) de um Latossolo Vermelho distrófico (Acrustox Háplico), sob plantio direto, em três profundidades. O objetivo foi estudar as correlações lineares e espaciais entre os atributos da planta e do solo, na tentativa de selecionar, entre os do solo, um indicador da sua qualidade física de boa representatividade para a produtividade da forragem.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manejo do solo; Qualidade física do solo; Forragicultura. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162009000100005 |
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| Narimatsu,Karem C. P.; Mello,Luiz M. M. de; Domingues,Luis A. da Silva; Chioderoli,Carlos A.; Lima,Ronaldo C.. |
| The evaluation of technologies employed at the agricultural production system such as crop rotation and soil preparation, both associated with crop-livestock integration, is crucial. Therefore, the aim of the present study was to evaluate the incorporation of lime for three no-tillage systems and cultural managements in system of crop-livestock integration, with emphasis on corn grain yield. The experiment was conducted from January 2003 to April 2005 at Selvíria city, MS, in Dystroferric Red Latosol, clay texture. The experimental design was randomized blocks with split plots consisted of three main treatments, aimed the soil physics conditioning and the incorporation of lime: PD - No-no-tillage; CM - minimum no-tillage, and PC - conventional no-tillage;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: No tillage system; Minimum tillage; Conventional tillage; Crop-livestock integration; Crop rotation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000200007 |
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| Vanzela,Luiz S.; Araujo Junior,Osvaldo; Lima,Ronaldo C.. |
| ABSTRACT Considering the importance of topographic surveys to determine soil volumes and study efficient and accessible alternatives for this operation, this study aimed to analyze methods and respective equipment for planialtimetric surveys to determine soil volume. An experimental grid was installed in an area locate in Fernandópolis, SP, Brazil, in which quotas were measured by geometric leveling (standard method), trigonometric leveling, leveling with receivers of the Global Navigation Satellite System (GNSS) by relative (frequencies L1/L2) and absolute positioning (code C/A) and extraction of altitudes in digital terrain model from SRTM and ASTER images. In comparison to geometric leveling, trigonometric leveling was the most accurate in determining... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: GNSS; Geometric leveling; Trigonometric leveling; Geomatics. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200207 |
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| Lima,Ronaldo C.; Mello,Luiz M. M. de; Yano,Élcio H.; Silva,José O. R. da; Cesarin,André L.. |
| The study was conducted in an area of expansion of sugarcane at Vale do Paraná factory in Suzanápolis city - São Paulo (SP), in Brazil, in the northwestern region of the State of São Paulo. It was used the sugarcane variety RB92-5345, 1.5m of spacing between rows, in an Ultisol. The study aimed to evaluate the productivity of sugarcane and first ratoon and some soil chemical attributes in function of soil tillage and application or not of gypsum. The experimental design was randomized blocks with six treatments, in a factorial 3x2 and six replicates, the main treatments were soil tillage with three equipments, moldboard plow, chisel plow, and heavy harrow, and two secondary treatments with application of 1 t ha-1of gypsum and no gypsum. After each harvest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical attributes; Mechanization; Gypsum application; Saccharum spp. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600011 |
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