Annual legumes as green manure and forage crops in winter canola (Brassica napus L.) rotations

Cropping systems that reduce chemical fertilizer N requirements in winter canola (Brassica napus L.) need further study. Studies were conducted in 1994/1995 and 1995/1996 at two locations in Michigan i) to quantify the N accumulated at plowdown by berseem clover (Trifolium alexandrinum L.), alfalfa...

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Veröffentlicht in:	Canadian journal of plant science 1999, Vol.79 (1), p.19-25
Hauptverfasser:	Shrestha, A, Hesterman, O.B, Copeland, L.O, Squire, J.M, Fisk, J.W, Sheaffer, C.C
Format:	Artikel
Sprache:	eng
Schlagworte:	application rate biomass Brassica napus crop rotation crop yield cropping systems forage forage crops green manures Medicago polymorpha Medicago sativa Medicago scutellata Medicago truncatula nitrogen content nitrogen fixation soil fertility spring and winter habit Trifolium alexandrinum
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