Spelt Wheat: An Alternative for Sustainable Plant Production at Low N-Levels

被引:16
|
作者
Sugar, Eszter [1 ]
Fodor, Nandor [1 ]
Sandor, Renata [1 ]
Bonis, Peter [1 ]
Vida, Gyula [1 ]
Arendas, Tamas [1 ]
机构
[1] Ctr Agr Res, Inst Agr, Brunszvik U 2, H-2462 Martonvasar, Hungary
关键词
wheat; spelt; sustainable plant production; N-fertilisation; grain yield; vitality indices; LEAF-AREA INDEX; TRITICUM-SPELTA; WINTER-WHEAT; HARVEST INDEX; GRAIN-YIELD; CHLOROPHYLL METER; NUTRITIONAL-VALUE; COMMON WHEAT; L; VARIABILITY;
D O I
10.3390/su11236726
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Sustainable agriculture strives for maintaining or even increasing productivity, quality and economic viability while leaving a minimal foot print on the environment. To promote sustainability and biodiversity conservation, there is a growing interest in some old wheat species that can achieve better grain yields than the new varieties in marginal soil and/or management conditions. Generally, common wheat is intensively studied but there is still a lack of knowledge of the competitiveness of alternative species such as spelt wheat. The aim is to provide detailed analysis of vegetative, generative and spectral properties of spelt and common wheat grown under different nitrogen fertiliser levels. Our results complement the previous findings and highlight the fact that despite the lodging risk increasing together with the N fertiliser level, spelt wheat is a real alternative to common wheat for low N input production both for low quality and fertile soils. Vitality indices such as flag leaf chlorophyll content and normalized difference vegetation index were found to be good precursors of the final yield and the proposed estimation equations may improve the yield forecasting applications. The reliability of the predictions can be enhanced by including crop-specific parameters which are already available around flowering, beside soil and/or weather parameters.
引用
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页数:16
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