Plant Community Resource Partitioning Experiment at the Kellogg Biological Station, Hickory Corners, MI

Dataset Abstract Results from a set of experimental subplots within selected crop and successional communities (see KBS 004) designed to determine how plants partition resources and whether crop-weed interactions vary in response to resource levels. Effects of N fertilizer on community production and partitioning at the species level determined by manipulating fertilizer inputs in the historically tilled early successional community and high chemical input CT and NT corn/soybean treatments. Competitive effects examined in the conventionally tilled (CT), no-till (NT), and poplar treatments by determining how crop density affects growth and nitrogen uptake in the presence and absence of competing weeds. original data source http://lter.kbs.msu.edu/datasets/8数据集摘要 本数据集源自选定作物群落与演替群落内的一系列实验亚样地（详见KBS 004），旨在明确植物的资源分隔策略，以及作物与杂草的互作效应是否会随资源水平的变化而产生差异。 研究通过对经历史耕作的早期演替群落，以及高化学品投入的传统耕作（Conventionally Tilled, CT）、免耕（No-Till, NT）玉米-大豆种植处理设置不同肥料投入梯度，解析了氮肥对群落生产力及物种水平资源分隔的影响。 本研究还针对传统耕作、免耕以及杨树种植处理样地开展了竞争效应分析，通过调控作物密度，探究在伴生杂草存在与缺失的两种条件下，作物生长与氮素吸收的变化规律。 原始数据来源：http://lter.kbs.msu.edu/datasets/8