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| Registros recuperados: 81 | |
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| Hirata,Andréia Cristina Silva; Hirata,Edson Kiyoharu; Camara,João Augusto Rizzo. |
| Abstract: The objective of this work was to evaluate the adaptability of different lettuce (Lactuca sativa) cultivars grown in no-tillage on straw of ruzi grass (Urochloa ruziziensis), as well as its effects on soil temperature and weed control, in successive cultivations in the summer. The treatments were carried out in a randomized complete block design, with four replicates, in a split-plot arrangement (2x4), in which soil management (no-tillage on ruzi grass and convention tillage) was the main plot, and the different crisphead lettuce cultivars (Amanda, Solaris, Vanda, and Vera), the subplots. No difference was observed between cultivars for soil management. No-tillage reduced the soil temperature by up to 3.7°C and weed density by 3.7 times, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria; Lactuca sativa; Soil conservation; Soil temperature; Vegetable crops; Weeds. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700824 |
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| Franco, Juan Agustin; Calatrava-Leyva, Javier. |
| This paper presents results from a survey carried out in 2005 among 147 olive tree farmers from the Alto Genil River Basin in Southern Spain regarding the adoption of soil conservation and management practices. Olive tree groves in South-eastern Spain's mountainous areas are subject to a high risk of soil erosion and have to incur in high costs of soil conservation. This results in great difficulties to comply with cross-compliance and to benefit from agri-environmental schemes. Our main objectives are to analyse the current level of adoption of soil conservation practices and to analyse which socio-economic and institutional factors determine such adoption. Three Probit models are estimated. Dependant variables are three different soil conservation... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Olive groves; Soil erosion; Soil conservation; Cross compliance; Crop Production/Industries; Q12; Q24. |
| Ano: 2006 |
URL: http://purl.umn.edu/25787 |
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| Alencar, Carlos Augusto Brasileiro de; UFV; Cóser, Antônio Carlos; Embrapa - Juiz de Fora; Martins, Carlos Eugênio; Embrapa - Juiz de Fora; Oliveira, Rubens Alves de; UFV; Cunha, Fernando França da; UFV; Figueiredo, José Luis Aguiar; UFV. |
| Objetivou-se avaliar a altura de planta e a cobertura do solo de seis capins irrigados manejados por pastejo sob efeito de diferentes adubações nitrogenadas e estações do ano. O experimento foi conduzido em esquema de parcelas subdivididas, tendo nas parcelas um esquema fatorial 4 x 6 (doses de nitrogênio e forrageiras) e nas subparcelas as estações do ano (outono/inverno e primavera/verão) no delineamento em blocos casualizados, com quatro repetições. As doses nitrogenadas foram de 100, 300, 500 e 700 kg há-1 ano-1, e as forrageiras foram: Xaraés, Mombaça, Tanzânia, Pioneiro, Marandu e Estrela. A altura foi medida desde o solo até as extremidades das folhas e a cobertura estimada visualmente por três observadores. Observou-se efeito dos capins, adubação... |
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Palavras-chave: 5.01.00.00-9 Agronomia Brachiaria brizantha; Panicum maximum; Pennisetum purpureum; Cynodon nlemfuensis; Conservação do solo Brachiaria brizantha; Panicum maximum; Pennisetum purpureum; Cynodon nlemfuensis; Soil conservation. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/319 |
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| Beniaich,Adnane; Silva,Marx Leandro Naves; Guimarães,Danielle Vieira; Bispo,Diêgo Faustolo Alves; Avanzi,Junior Cesar; Curi,Nilton; Pio,Rafael; Dondeyne,Stefaan. |
| ABSTRACT In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of olive trees. Given the fast expansion of olive orchards in Brazil, this study aimed to evaluate the effect of cover vegetation on soil and water losses under natural rainfall. In addition, it was assessed the crop performance and the vegetation cover index in different management systems in olive orchards. The study was carried out in soil erosion plots, where water and sediment were sampled and measured over two crops season, under the following treatments: in the first season, bare soil with olive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Soil loss; Land degradation; Runoff; Olive cultivation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100503 |
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| AMARAL, A. J. do; MARQUES, F. A.; PARAHYBA, R. da B. V.; OLIVEIRA NETO, M. B. de; SILVA, A. B. da; BARROS, A. H. C.; NASCIMENTO, A. F. do; IVO, W. M. P. de M.. |
| O objetivo deste trabalho foi determinar alguns atributos físico-hídricos na camada superficial do solo relacionados à retenção, armazenamento e disponibilidade de água para as plantas, em uma topossequência de solos sob diferentes sistemas de colheita de cana-de-açúcar, em comparação a uma área de referência de floresta subperenifólia, em Coruripe, AL. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Atributos do solo; Manejo do Solo; Conservação do Solo; Cana de Açúcar; Soil management; Soil conservation; Sugarcane. |
| Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1101191 |
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| Magalhaes,Sulamirtes S. de A.; Ramos,Fabricio T.; Weber,Oscarlina L. dos S.. |
| ABSTRACT Soil carbon (C) stock determination can subsidize discussions on the continuity of an agricultural management. This study aimed to evaluate the stocks of total organic C (STOC) and labile C (SLC), and the indices of C lability (CLI), C compartment (CCI) and C management (CMI), and correlate them with chemical and physical attributes of a Red Yellow Latosol (Oxisol) managed for 38 years with different tillage systems in a Cerrado region of Mato Grosso, Brazil. Disturbed and undisturbed soil samples were collected in three layers (0-0.05, 0.05-0.10 and 0.10-0.20 m). The CMI (CLI x CCI) showed higher STOC possibly as the tillage depth decreased, because none of the tillage systems conserved STOC and SLC in the layers of 0-0.05 and 0.05-0.10 m,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Crop rotation; Soil organic matter. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100085 |
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| Valpassos,Maria Alexandra Reis; Cavalcante,Eloiza Gomes Silva; Cassiolato,Ana Maria Rodrigues; Alves,Marlene Cristina. |
| The objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil chemicophysical properties; Biomass; Soil deterioration; Soil conservation. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001001200011 |
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| Registros recuperados: 81 | |
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