Nitrogen fertilization compensation the weak photosynthesis of Oilseed rape (Brassca napus L.) under haze weather.

Scientific Reports
Rihuan CongJianwei Lu

Abstract

Haze and cloudy weather reduce photo-synthetically active radiation (PAR), which affects the formation of crop yield and nitrogen (N) fertilizer utilization.. We conducted field trails in normal year and severe winter haze year, aiming to compare the difference of photosynthesis and N uptake in winter rapeseed under different N levels. Daily sunshine hours and averaged radiation intensity in winter haze year decreased by 54.1% and 33.3% respectively as compared with the past 30 years. Diurnal variation of net photosynthetic rate in winter haze day was 16.2% lower than that of sunny day. Leaf area and photosynthetic capacity decreased significantly during winter haze year. The shoot biomass and N uptake at the rosette stage accounted for only 9.6% and 26.6% of the total growth period in winter haze year, while 24.4% and 70.5% in normal year, respectively. However, in winter haze year, as the top dressing of N application increasing after the rosette stage, shoot biomass increased gradually. In order to achieve the target yield of 2.5 t ha-1, after suffering winter haze, it is necessary to apply additional 73.1 kg N ha-1. In conclusion, the haze climate reduced the radiation intensity and stability, leading to a decline in photos...Continue Reading

References

Nov 26, 1999·Proceedings of the National Academy of Sciences of the United States of America·W L ChameidesF Giorgi
Aug 9, 2002·Nature·David TilmanStephen Polasky
Jul 1, 2004·Proceedings of the National Academy of Sciences of the United States of America·Shaobing PengKenneth G Cassman
Jan 12, 2005·Journal of Experimental Botany·Robin G Walters
Mar 16, 2006·Proceedings of the National Academy of Sciences of the United States of America·Yan HuangWilliam L Chameides
Oct 4, 2012·Journal of Agricultural and Food Chemistry·Jingjing FangBernd Schneider
Mar 6, 2017·Nature Climate Change·Matthijs TollenaarSaratha Kumudini

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