Influence of organic and conventional growing conditions on the nutrient contents of white head cabbage (Brassica oleracea var. capitata) during two successive seasons.

Organically and conventionally grown white head cabbage (Brassica oleracea var. capitata) plants were cultivated during two successive seasons (spring and autumn) to evaluate the effects of the applications on the nutrient content of the edible part of cabbage plants. Seventeen different organic applications containing farmyard manure (FM), chicken manure (CM), and blood meal (BM) and 1 chemical fertilizer and 1 control, collectively 19 treatments, were examined under the open-field conditions.

Mineral contents of organically and conventionally grown spinach (Spinacea oleracea L.) during two successive seasons.

Spinach (Spinacea oleracea L.) plants were grown organically and conventionally during two successive seasons (late autumn and early winter) in order to examine the nutrient content of the plants. In a series of 17 organic applications including chicken manure (CM), farmyard manure (FM), blood meal (BM), and one mineral fertilizer treatment and one control, collectively 19 treatments, were used at each season.