Effect of root interaction on nodulation and nitrogen fixation ability of alfalfa in the simulated alfalfa/triticale intercropping in pots.

Scientific Reports
Yajiao ZhaoYong Wu

Abstract

Cereal/legume intercropping is likely to achieve the optimal exploitation of soil and atmospheric nitrogen (N) sources to maintain high production and quality levels with low N inputs, as an attempt to eliminate underlying environmental effects. Nevertheless, the extent of the effect of cereal/legume intercropping on nodulation and N fixation of intercropped legumes in root interaction requires extensive verification. In the present study, root interaction of alfalfa/triticale intercropping was simulated in pots with the use of root separation types (pot with no barrier (A-T), pot with nylon mesh barrier (NA-T), pot with plastic barrier (PA-T), and alfalfa alone (SA)) in pots. Moreover, the experiment was measured at a range of N levels (N21, N210) and growing stages (branching, budding and initial flowering stages) in growth chamber. As alfalfa was growing, the total nodule number (TNN), effective nodule number (ENN) and nitrogenase activity (NA) of alfalfa with A-T and other cropping systems more noticeably differed from each other at higher N levels, whereas their diversification was reduced at lower N levels. As alfalfa was growing continuously, fresh nodule weight per plant (PNW) and single fresh nodule weight (SNW) with A...Continue Reading

References

Jul 9, 2004·Annals of Botany·S M LiC Tang
Feb 13, 2010·Science·J H GuoF S Zhang
Mar 27, 2012·The Science of the Total Environment·M E IsaacJ M Harmand
Mar 19, 2014·International Journal of Molecular Sciences·Akinori SaitoTakuji Ohyama
May 25, 2016·Proceedings of the National Academy of Sciences of the United States of America·Bai LiLong Li
Jun 2, 2018·Journal of the Science of Food and Agriculture·Jiali LiuChanghong Guo

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