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| Wu, Ya; Escalante, Cesar L.; Perkins, Samuel L.; Neely, Carrie E.. |
| This study analyzes farm labor management strategies of organic farms by employing Heckan selection model. Econometric results present interesting relationships between foreign worker-related variables and the hiring of non-family seasonal part-time workers. First, the extent of hiring is inversely related to the population of illegal residents. Second, the outcome variable (extent of hiring) is directly related to the number of H2A permits (foreign guest farm worker visas for temporary, contractual work) issued. The results also indicate that higher wages, corporate farms, and more educated, younger and full-time farm operators are associated with greater tendencies to hire non-family seasonal part-time workers. Family labor is used to supplement the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Organic farm; Unskilled labor; Immigration; Heckman selection model; Foreign worker; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/61155 |
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| Jovaišienė,J.; Bakutis,B.; Baliukonienė,V.; Matusevičius,P.; Lipiński,K.; Antoszkiewicz,Z.; Fijałkowska,M.. |
| ABSTRACT The aim of the current study was to investigate biogenic amines and mycotoxins concentrations in baled silage (mainly Poaceae family grasses) prepared in organic and conventional farms and to relate these parameters to fermentative parameters. The mean dry matter (DM) content was 364.10±93.31 and 424.70±95.93g/kg in the silage from organic and conventional farms respectively. The silage samples from organic farms had 17.00% higher (P≤ 0.05) tyramine (TY) than the silage from conventional farms. Conventional farm samples were characterized by 46.00% higher histamine (HIS) (P≤ 0.05), 9.80% higher putrescine (PUT) (P≤ 0.05), 17.30% higher cadaverine (CAD) (P≤ 0.05). Aflatoxins (AFL) (total) and zearalenone (ZEN), T-2/HT-2 concentrations were higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogenic amines; Mycotoxins; Volatile fatty acids; Organic farm; Conventional farm. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200269 |
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