Pre-crop effects on the nutrient composition and utilization efficiency of faba bean (Vicia faba L.) and narrow-leafed lupin (Lupinus angustifolius L.)

Autor: Markku Yli-Halla, Clara Lizarazo, Frederick L. Stoddard
Rok vydání: 2015
Předmět:
Zdroj: Nutrient Cycling in Agroecosystems. 103:311-327
ISSN: 1573-0867
1385-1314
DOI: 10.1007/s10705-015-9743-0
Popis: Legumes are key components of cropping systems due to their biological nitrogen fixation ability. The beneficial role of legumes as pre-crops for cereals in cereal-based rotations is well studied, but the evaluation of pre-crops for legumes is not. This study aims to identify which is the best pre-crop for faba bean and narrow-leafed lupin by comparing various nutrient utilization indices for 11 elements. The elemental composition of the two grain legumes was significantly different. There was a significant and positive pre-crop effect of barley, and to a lesser extent oat, on the nutrient composition and indices of both grain legumes, but not on their yield and protein concentration. Barley as a pre-crop was associated with higher concentrations of Mg, Mn and Zn in narrow-leafed lupin seeds and of S in faba bean seeds. Principal component analysis demonstrated similarities in the nutrient uptake of both legumes, and also revealed a consistent association between Fe and Si in narrow-leafed lupin. Use of different nutrient utilization indices allows the detection of pre-crop effects in rotations and the assessment of nutrient cycling of different crop sequences. The mineral utilization index was particularly informative. Attention to the appropriate pre-crop can further increase the sustainability of legume-supported cropping systems.
Databáze: OpenAIRE
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