INQUINOA-CONICET, Universidad Nacional de Santiago del Estero, Avda. Belgrano (S) 1912 (CP 4200), Santiago del Estero, Argentina.
J Agric Food Chem. 2009 Nov 11;57(21):10122-9. doi: 10.1021/jf903019d.
Changes in crop yields and bioactive substance contents were studied in lettuce crop concerning the influence of soil nutritional status as a result of compost and vermicompost additions obtained from different organic substrates. Plant productions and main pigment contents in lettuce were higher in all the fertilized soils than in the untreated soil, with the exception of the one treated with urban solid waste compost. These positive effects correlate with nitrogen level increase in soil. However, the high saline input of this compost prepared from food home wastes interferes in lettuce growth and prevents it from being higher than the control. Marked decreases in lettuce phenolic contents and antiradical activity were found in most of the treatments. Composts and vermicomposts produced through the processing of cattle manures, agro-industrial organic wastes significantly increased lettuce crop yield enriching its pigment contents, although, in some cases, antioxidant value and phenolic levels were reduced.
研究了不同有机基质堆肥和蚯蚓堆肥添加对土壤养分状况的影响，从而研究了生菜作物的作物产量和生物活性物质含量的变化。与未处理土壤相比，所有施肥土壤中的生菜产量和主要色素含量都更高，除了用城市固体废物堆肥处理的土壤外。这些积极影响与土壤中氮水平的增加有关。然而，这种由食品家庭废物制成的高盐分输入会干扰生菜的生长，使其无法超过对照。在大多数处理中，生菜的酚类含量和抗氧化活性明显下降。通过处理牛粪便、农业产业有机废物生产的堆肥和蚯蚓堆肥显著增加了生菜作物的产量，丰富了其色素含量，尽管在某些情况下，抗氧化值和酚类水平降低了。
