Title of article :
Root growth and nitrogen uptake of carrot, early cabbage, onion and lettuce following a range of green manures
Keywords :
cover crop , rooting depth , organic production , Hairy vetch , common vetch , crimson clover , ryegrass , Egyptianclover , Rye , Green manures , carrot , cabbage , onion , lettuce , rooting depth , Nitrogen use efficiency
