- Department of Biosystems and Technology, Swedish University of Agricultural Sciences
Short-term residual N unaffected by forbs in grass-clover mixtures
Dhamala, N. R.; Rasmussen, J.; Cong, W. -F.; Carlsson, G.; Soegaard, K.; Eriksen, J.
We determined the effect on residual nitrogen (N) of including forbs (chicory, ribwort plantain and caraway) in perennial ryegrass-red clover mixtures. Although soil N inputs during the grassland phase differed markedly between mixtures, in a pot experiment we found no differences in the potentially mineralizable N of the soil or in the dry matter production and N content of the spring barley test crop. The fertilizer value of the grassland mixtures corresponded to 10g N/m(2), irrespective of forb inclusion. Thus, the inclusion of nonlegume forbs did not negatively affect short-term residual N fertility of legume-based grasslands.
Grassland; residual effect; chicory; caraway; ribwort plantain
Soil Use and Management
2017, Volume: 33, number: 3, pages: 457-459
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