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The major citrus production of the world are located between 20-40 degrees north and south latitude. In these conditions the mandarins get the best internal and external qualities.‘Arrayana’ is the main mandarin cultivated in Colombia tropical lowlands (around 04° N).
Animal genetic resources ex situ conservation is an essential and complementary tool to in situ conservation. It is one of the main procedures for population recovery.
Acid sulfated soils are characterized by high amounts of iron and sulfur, which in presence of air are oxidized and form sulfuric horizons extremely acidic, generating environmental changes ranging from water pollution to problems associated with fertility and crop production,
Native arbuscular mycorrhizal fungi associated with grass and legume cover crops established on Oxisol soils in the Colombian piedmont (Meta) were identified morphologically and the ability to colonize was evaluated.
The presence of trees in the farms is typically considered a good practice in water shed management.