Natural fallow alleviates carbon and nitrogen limitation of microorganisms and plants in paddy fields

Carbon (C), nitrogen (N), and phosphorus (P) serve as critical limiting factors for plant-microbe colonization and growth in agroecosystems, while simultaneously functioning as key regulatory controls for soil C emissions. Here, we investigated plant-microbial nutrient limitation under two states of paddy fields (cultivation state and fallow state), assessing synchronization patterns through combined analysis of plant resorption efficiency and microbial ecoenzyme stoichiometry. We found that there was a consistent pattern of N (25.00%) and P (44.44%) limitation between plant-microbial communities. Plant-microbial communities were mainly N-limited in the rice cultivation stage and P-limited in the fallow stage. Nutrient limitation of plant-microbial communities was regulated by soil C:N:P stoichiometry: the increase in available soil N:P led to P limitation in plant communities, which enhanced the secretion of organoheterocyclic compounds and organometallic compounds. This change increas..., , # Natural fallow alleviates carbon and nitrogen limitation of microorganisms and plants in paddy fields

Dataset DOI: [10.5061/dryad.vdncjsz6m](10.5061/dryad.vdncjsz6m)

## Description of the data and file structure

Relevant data on microbiological and enzymatic activities, etc., of rice soils

We have submitted our raw data (**Data.csv**).

### **DATE.CSV**

units: %

* *VL*: Vector length, representing the microbial C limit
* *VA*: Vector angle, representing the N or P limit for microorganisms
* *Plant limitation*: N/P of plant leaves, representing their N or P limitation
* *soil C/N*: Soil C and N ratio
* *soil C/P*: Soil C and P ratio
* *soil N/P*: Soil N and P ratio
* *BAC PC1* and *BAC PC2*: represent the bacterial community structure (first and second axes in PC species), respectively
* *FUN PC1* and *FUN PC2*: represent the fungal community structure (first and second axes in PC species), respectively
* *root exudates PC1* and *root exudates PC2*: represent the root exudates co...,