Multivariable field trial data sets of organic and extensive cropping systems for agro-ecosystem modelling in 1992-1998 from Müncheberg,Germany

A multi-year (1993-1998) coherent data-set for a four-field crop rotation (sugar beet - winter wheat - winter barley - winter rye - catch crop) under organic and extensive cropping systems located at the Leibniz Centre for Agricultural Landscape Research (ZALF) Experimental Station, Müncheberg, Germany, is documented in detail. The experiment targets crop rotaion response to different cropping systems at sandy soils (Eutric Cambisol) taking into account rain-fed and irrigated conditions. Weather, soil and crop processes were intensively monitored and management actions were consistently recorded. The data set contains data for soil (water and nitrogen contents), crop (ontogenesis, plant, tiller and ear numbers, above-ground and root biomasses, yield, carbon and nitrogen content in biomass and their fractions, sugar content in beet), weather (standard meteorological variables) and management (soil tillage, sowing, fertilisation, irrigation, harvest). The methods for measurements and observations are briefly described.

本数据集为1993至1998年的连贯长期数据集，详细记录了位于德国明谢贝格的莱布尼茨农业景观研究中心（Leibniz Centre for Agricultural Landscape Research, ZALF）实验站内，有机与粗放种植系统下的四田轮作（糖用甜菜-冬小麦-冬大麦-冬黑麦-覆盖作物）相关实验内容。本实验以砂质壤土（典型雏形土，Eutric Cambisol）为供试土壤，旨在探究雨养与灌溉两种栽培条件下，不同种植系统对作物轮作的响应规律。实验对气象、土壤与作物相关过程开展了严密监测，并对田间管理措施进行了持续完整的记录。数据集涵盖土壤（含水量与氮素含量）、作物（发育进程、植株数量、分蘖数、穗数、地上部与根系生物量、产量、生物量及其组分的碳氮含量、甜菜含糖量）、气象（标准气象变量）以及管理措施（土壤耕作、播种、施肥、灌溉、收获）相关数据。测量与观测方法均已简要说明。