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Browsing by Subject "Organic farming"

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Browsing by Subject "Organic farming"

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  • Estimating nitrogen mineralization in organic potato production 
    Oregon State University. Extension Service; Sullivan, Dan M. (Dan Matthew), 1954-; McQueen, John Paul Gainer; Horneck, Donald Arthur (Corvallis, Or. : Extension Service, Oregon State University, 2008-01)
    Potatoes require adequate nitrogen to produce quality tubers and high yields. Organic farming practices are designed to build soil nutrient levels gradually. In organic systems, nitrogen (N) enters the soil in the form ...
  • Flea beetle pest management for organic potatoes 
    Oregon State University. Extension Service; Ambrosino, Mario D. (Corvallis, Or. : Extension Service, Oregon State University, 2008-01)
    Several species of flea beetles are commonly found in organic potato fields in North America. Adults of many of these species feed on the leaves of potatoes and other plants in the family Solanaceae, but tuber flea beet ...
  • The need to breed crop varieties suitable for organic farming using wheat, tomato and broccoli as examples: A review 
    Lammerts van Bueren, E. T.; Jones, S. S.; Tamm, L.; Murphy, K. M.; Myers, J. R.; Leifert, C.; Messmer, M. M. (Elsevier, 2011-12)
    It is estimated that more than 95% of organic production is based on crop varieties that were bred for the conventional high-input sector. Recent studies have shown that such varieties lack important traits required unde ...
  • Organic Aquaculture in Vietnam 
    Nguyen, Dung Huu (International Institute of Fisheries Economics and Trade, 2008)
    Organic aquaculture was first introduced in Vietnam by VASEP in 1999 and determined by the Government of Vietnam as an strategic direction for development of sustainable and responsible aquaculture. Through a cooperatio ...

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