Catch crop diversity increases rhizosphere carbon input and soil microbial biomass
- NormanGentsch
- JensBoy
- Juan DanielKennedy Batalla
- DianaHeuermann
- Nicolausvon Wirén
- DörteSchweneker
- UlfFeuerstein
- JonasGroß
- BernahrdBauer
- BarbaraReinhold-Hurek
- ThomasHurek
- FabricioCamacho Céspedes
- GeorgGuggenberger
Abstract
Introduction
Material and methods
Results
Plant biomass and net ecosystem exchange
The NEE decreased significantly with increasing catch crop diversity (Fig. 1), suggesting increasing -C uptake from the atmosphere.
Table 1. Representation of the p-values chunk:figure1 ::: ```r echo=FALSE, results='asis' kable(df.summary, caption = "bla")
ggplot(data, aes(x= cc_variant, y=NEE, fill= cc_variant))+ geom_boxplot()+ scale_fill_manual(values = COL, guide=FALSE)+ geom_text(data= df_NEE ,aes(y=-600,x=cc_variant, label=.group))+ labs(x="Catch crop variant", y=expression("NEE (mg CO"2"- C"m{-2}~h{-1}~")"), fill="")+ theme_myBW+scale_x_discrete(limits=c("Mustard", "Fallow", "Mix4", "Mix12")) ``` :::
Discussion
NEE is linked to plant diversity
... The NEE in our study showed a remarkably strong negative gradient from mustard to mix 4 to mix 12 (Fig. 1), which suggested higher photosynthetic -C fixation rates with increasing catch crop diversity.