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| Resende,Alexander Silva de; Santos,Adriano; Xavier,Rogério Pontes; Coelho,Celso Henrique; Gondim,Antônio; Oliveira,Octávio Costa; Alves,Bruno José Rodrigues; Boddey,Robert Michael; Urquiaga,Segundo. |
| As práticas da queima, aplicação de vinhaça e fertilizante nitrogenado são comuns na cultura de cana-de-açúcar. No entanto, estudos de longa duração são pouco encontrados na literatura. Neste trabalho, realizado na Usina Cruangi, Timbaúba, PE, transição entre a Zona da Mata e o Agreste daquele Estado, objetivou-se avaliar o efeito da aplicação de N (80 kg ha-1 na forma de uréia), da vinhaça (80 m³ ha-1) e da queima (com ou sem queima) da palhada antes do corte, entre 1983 e 1999, em características tecnológicas da cultura de cana-de-açúcar. O delineamento experimental foi o de blocos ao acaso, em esquema fatorial completo 2 x 2 x 2, e quatro repetições. O experimento teve duas fases: a primeira, de 1983-1992, e a segunda, de 1992-1999. A aplicação de N... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cana crua; Açúcar; Adubação. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832006000600003 |
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| Machado,Roriz Luciano; Resende,Alexander Silva de; Campello,Eduardo Francia Carneiro; Oliveira,José Arimathéa; Franco,Avílio Antônio. |
| The most advanced stage of water erosion, the gully, represents severe problems in different contexts, both in rural and urban environments. In the search for a stabilization of the process in a viable manner it is of utmost importance to assess the efficiency of evaluation methodologies. For this purpose, the efficiency of low-cost conservation practices were tested for the reduction of soil and nutrient losses caused by erosion from gullies in Pinheiral, state of Rio de Janeiro. The following areas were studied: gully recovered by means of physical and biological strategies; gullies in recovering stage, by means of physical strategies only, and gullies under no restoration treatment. During the summer of 2005/2006, the following data sets were collected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Valley of Mid-Paraíba do Sul River; Water erosion; Leguminous trees. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300036 |
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| Balieiro,Fabiano de Carvalho; Pereira,Marcos Gervasio; Alves,Bruno José Rodrigues; Resende,Alexander Silva de; Franco,Avílio Antonio. |
| In spite of the normally low content of organic matter found in sandy soils, it is responsible for almost the totality of cation exchange capacity (CEC), water storage and availability of plant nutrients. It is therefore important to evaluate the impact of alternative forest exploitation on the improvement of soil C and N accumulation on these soils. This study compared pure and mixed plantations of Eucalyptus grandis and Pseudosamanea guachapele, a N2-fixing leguminous tree, in relation to their effects on soil C and N stocks. The studied Planosol area had formerly been covered by Panicum maximum pasture for at least ten years without any fertilizer addition. To estimate C and N contents, the soil was sampled (at depths of 0-2.5; 2.5-5.0; 5.0-7.5;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mixed plantations; Pseudosamanea guachapele; Eucalyptus grandis; Soil organic matter; 13C natural abundance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832008000300033 |
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| Silva,Lusimar Lamarte Gonzaga Galindo da; Resende,Alexander Silva de; Dias,Paulo Francisco; Correia,Maria Elizabeth Fernandes; Scoriza,Rafael Nogueira. |
| Grasslands afforestation aims at adding different soil uses in a way they become profitable for their owners. As such handling aims at minimizing impacts, the current study had as its goal the use of soil macrofauna in order to evaluate legume afforestation effects on the soil, regardless the depth. Thus, nitrogen fixing species were inserted onto grassland areas and the macrofauna collection was performed 6 years after their planting in the 0-10cm, 10-20cm and 20.30cm layers, in winter and summer. Leguminous influence was different between depths and times of the year. It mostly favors communities under "Mimosa" Genus treetops. Besides, the effects from climatic seasonal variations on invertebrates were mitigated by the implementation of such legume trees |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil invertebrates; Silvopastoral; Brachiaria brizantha. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701191 |
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| Bueno,Mateus Marques; Leles,Paulo Sérgio Santos; Pinto,Marinaldo Ferreira; Resende,Alexander Silva de; Couto,Beatriz Rodrigues Monteiro; Carvalho,Daniel Fonseca de. |
| ABSTRACT The increase in the demand for seedlings of native tree species makes it important to determine their water and light requirements, which are important factors in their production, in terms of costs and time. Water use and productivity in the growth of seedlings of Dalbergia nigra (Vell.) Allemão ex Benth., Apuleia leiocarpa (Vogel) J.F. Macbr and Hymenaea courbaril L. were determined under four light levels (three shading levels and control), using a randomized block design with four replicates. Height, stem diameter, leaf area and biomass, as well as Dickson quality index (DQI) were evaluated. The seedlings were transplanted into 280-cm3 plugs, filled with substrate composed of pure biosolids, and irrigated by a drip system with automatic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Automatic irrigation management; Biosolid; Jacarandá-da-Bahia; Garapa; Jatobá.. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542021000100207 |
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