Agricultural management legacy effects on switchgrass growth and soil carbon gains

These datasets are part of the manuscript \"Agricultural management legacy effects on switchgrass growth and soil carbon gains\" in which we observed the impact of historic tillage management and historic and continued N fertilization on switchgrass growth and soil C gains. In this study, we hypothesized that the inconsistencies in soil organic carbon (SOC) accrual by switchgrass might be due, in part, to differences in prior land management among the systems subsequently planted to switchgrass. To test this hypothesis, we measured SOC and other soil properties, root biomass, and switchgrass growth in an experimental site with a 30-year history of contrasting tillage and N-fertilization treatments, seven years after switchgrass establishment. We determined switchgrass’s monthly gross primary production (GPP) for six consecutive years and conducted deep soil sampling. Nitrogen fertilization expectedly stimulated switchgrass growth, however, a tendency for better plant growth was also ..., , # Agricultural management legacy effects on switchgrass growth and soil carbon gains

Dataset DOI: [10.5061/dryad.m37pvmdf5](10.5061/dryad.m37pvmdf5)

## Description of the data and file structure

### Files and variables

#### File: Chakrabort_GCBB_2025_soil_data.csv

**Description:** This file contains measured soil properties

##### Variables

| Column name | unit | Description |
| :---------- | :---------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Rep | | Field replicate |
| Till | | Tillage treatment; T is t...,

本数据集隶属于论文《农业管理遗留效应对柳枝稷生长与土壤碳固持的影响》，该研究旨在探究历史耕作管理、历史及持续氮肥施用对柳枝稷生长与土壤碳固存的影响。本研究提出假设：柳枝稷介导的土壤有机碳（soil organic carbon, SOC）固存存在不一致性，其部分原因可能在于后续种植柳枝稷的各系统间初始土地管理方式存在差异。为验证该假设，我们在柳枝稷定植七年后的试验样地开展测定，该样地具有长达30年的差异化耕作与氮肥施用处理历史，测定指标包括SOC及其他土壤理化性质、根系生物量与柳枝稷生长状况。我们连续六年测定了柳枝稷的月度总初级生产力（gross primary production, GPP），并开展了深层土壤采样工作。氮肥施用如预期般促进了柳枝稷生长，但植株生长更佳的趋势也同样存在……

# 农业管理遗留效应对柳枝稷生长与土壤碳固持的影响

数据集DOI：10.5061/dryad.m37pvmdf5

## 数据与文件结构说明

### 文件与变量

#### 文件：Chakrabort_GCBB_2025_soil_data.csv

**描述：** 本文件包含实测土壤理化性质数据

##### 变量

| 列名 | 单位 | 说明 |
| :---------- | :---------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Rep | | 田间重复样区 |
| Till | | 耕作处理；T代表……