Photosynthetic Characteristics and Uptake and Translocation of Nitrogen in Peanut in a Wheat-Peanut Rotation System Under Different Fertilizer Management Regimes

Frontiers in Plant Science
Zhao Xin LiuXiang-dong Li

Abstract

Better management of N fertilizer is essential for improving crop productivity. Wheat (Triticum aestivum L.)-peanut (Arachis hypogaea L.) relay intercropping rotation systems are a mainstay of the measures to improve the economic and food security situation in China. Therefore, a 2-year field study (2015-2017) was conducted to evaluate the effect of different N fertilizer management regimes on the photosynthetic characteristics and uptake and translocation of N in peanut in the wheat-peanut rotation system. We used common compound fertilizer (CCF) and controlled-release compound fertilizer (CRF) at the same N-P2O5-K2O proportion (The contents of N, P2O5, and K2O in the two kinds of fertilizer were 20, 15, and 10%, respectively.). The fertilizer was applied on the day before sowing, at the jointing stage or the flag leaf stage of winter wheat, and at the initial flowering stage of peanut in various proportions, with 0 kg N ha-1 as the control. Results showed that split applications of N significantly increased leaf area index (LAI) and chlorophyll content and improved photosynthetic rate, thus increasing the pod yield of peanut. Topdressing N at the jointing stage (S1) or at the flag leaf stage of wheat (S2) and supplying part o...Continue Reading

References

Mar 26, 2002·Journal of Experimental Botany·Mark StittAnne Krapp
Aug 9, 2002·Nature·David TilmanStephen Polasky
Jan 23, 2010·Current Opinion in Plant Biology·Gabriel KroukYi-Fang Tsay
Feb 13, 2010·Science·J H GuoF S Zhang
Nov 23, 2011·Proceedings of the National Academy of Sciences of the United States of America·David TilmanBelinda L Befort

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Citations

Nov 19, 2021·Environmental Science and Pollution Research International·Zhaoxin LiuXiangdong Li
Nov 26, 2021·The Science of the Total Environment·Baolin XueWenchao Sun

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Methods Mentioned

BETA
MDA

Software Mentioned

Sigma Plot
DPS

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