Preconsolidation of Ultisol subjected to the traffic of agricultural tractors

Autor: Mion, Renildo Luiz, Sombra, Weberte, Andrade, Ricardo, Cordeiro, Igor, Gonçalves, Kenya, Pereira, Virginia Pires

Publikováno v: Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No 1 (2013): RCA; 69-72
Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. 1 (2013): RCA; 69-72
Revista de Ciências Agrárias (Belém. Online)
Universidade Federal Rural da Amazônia (UFRA)
instacron:UFRA

The objective of this study was to evaluate the preconsolidation pressures and the coefficient of compressibility of the soil caused by the traffic of agricultural 4 × 2 tractors in yellow red argisol. For the uniaxial compression tests, three undis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::b847f9f39933b28809fd715a7328dc81
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/626

Performance of an agricultural microtractor in different ratios weight and power

Autor: Sombra, Weberte Alan

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

The objective of this test is evaluate the energy performance of an agricultural microtractor Yanmar Agritech ® model NSB14S with nominal power of 10.3 kW (14 hp) under three different weight / power ratios, 0.41, 0.54 and 0,67 kN kW-1 (41, 54 e 67

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::33fcfc64229eff71d25198258fd8f501
http://www.repositorio.ufc.br/handle/riufc/10581

The use of a vertical patternator as parameter for adjustments of air assited sprayer

Autor: Mion,Renildo L., Sombra,Weberte A., Duarte,José M. de L., Nascimento,Elivânia M. S., Viliotti,Carlos A., Lucas,Fidel C. B., Monte,Clesson A.

Publikováno v: Engenharia Agrícola, Volume: 31, Issue: 2, Pages: 352-358, Published: APR 2011
Engenharia Agrícola v.31 n.2 2011
Engenharia Agrícola
Associação Brasileira de Engenharia Agrícola (SBEA)
instacron:SBEA

O consumo excessivo de agrotóxicos na agricultura brasileira é preocupante, e um dos fatores que contribuem para este excesso é o uso incorreto dos equipamentos de aplicação, causando grandes problemas de contaminação ambiental. O sucesso de u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d6560e336eb9838efabde7487df92919
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000200015&lng=en&tlng=en

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.