Barely Significant

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Concerning the 15 N isotope composition, as observed by other authors ( Kolb and Evans, 2003 ) a decreasing trend of δ 15 N values within the different plant organs was observed as lifecycle draws on, decreasing in the non-fertilized plant organs from a mean 6‰ at GS36 and GS60 to 3.5‰ at GS90 and from a mean 4‰ to 2‰ in the fertilized plants ( Figure 2 ).
Wheat straw application resulted in a positive trend of winter barley yield under higher N conditions ( Figure 3A ), which could be either caused by remineralization of immobilized N during the growing season, but also due to decomposition and subsequent N release contained in the wheat straw itself ( Di and Cameron, 2002 ).
N contribution to grain filling: total organic matter and rubisco A decreasing trend in N concentration in most plant parts is the natural process during grain filling in wheat, and in many cases it varies greatly with environmental factors and can also be affected by genotype (Le Gouis et al., 2000 ; Pang et al., 2014 ).
Indeed, green cover was still significantly reduced 1 and 2 years after drought, and this effect was especially pronounced in monoliths of high-VPD sites, as demonstrated by the marginally significant (2014) and significant (2015) interaction with VPD (Table 2 , Figure 2 ).
Legacy Effects of Climate Extremes in Alpine Grassland.
Front Plant Sci · 2018 · PMC6218882