{"@context": "https://schema.org", "@type": "Dataset", "@id": "https://doi.org/10.5878/7f5n-vp94", "identifier": [{"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/7f5n-vp94"}, {"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/sks0-ne71"}], "isPartOf": ["https://snd.se/catalogue/collection/slu-long-term-agricultural-experiments"], "version": "1", "name": [{"@value": "SLU long-term field experiments: The frame trial (R3-RAM56), crop and soil data from 1956 and onwards", "@language": "en"}, {"@value": "SLU:s l\u00e5ngliggande jordbruksf\u00f6rs\u00f6k: Ramf\u00f6rs\u00f6ket (R3-RAM56), gr\u00f6d- och jorddata fr\u00e5n 1956 och fram\u00e5t", "@language": "sv"}], "description": [{"@value": "The SLU long-term agricultural field experiments are a nationwide research infrastructure consisting of experiments in hydrological management, tillage, landscape ecology, plant nutrition, weed biology and control, cropping systems, and cropping systems in northern Sweden. They are used to study how crop rotations and cultivation measures in agriculture affect soil properties and crop yields in the long term, and the effect of weather and climate on the efficacy of these treatments. The experimental sites and the data collected in the long-term experiments are a valuable resource for research, teaching and consulting. The experiments are open for those who want to use data already collected or who want to do their own sampling. All long term experiments are funded by the NJ faculty and administered by an academic department, with the activities coordinated by a committee. \n \nTwenty four long-term field experiments in plant nutrition and soil fertility are currently managed by the Department of Soil and Environment at the Swedish University of Agricultural Sciences. These experiments, starting as early as 1936 or as recently as 2010, are grouped into eight different experimental series that focus on themes such as agronomically-relevant factors including liming, long-term soil fertility, soil organic matter and soil biology. Plant and soil samples have been collected, measured for standard parameters, and archived since the start of the experiments, forming the basis of over 200 theses and papers across a broad range of disciplines.\n\nThe frame experiment is located at the Ultuna Campus at the Swedish University of Agricultural Sciences and has been ongoing since 1956. The aim of the experiment is to study the effect of different combinations of organic matter and nitrogen fertilization on soil organic matter content, yield level and crop nutrient content. This dataset contains values \u200b\u200bfor nutrient content in crops, soil and organic matter, and yields between 1956 and 2023. The data is provided as a single tsv file (RAM56_data.tsv), with an additional seven tsv files providing context. Physical data collected by researchers since the beginning of the experiment, together with plant and soil samples collected from a subset of time points during the experiment, are stored at the Swedish University of Agricultural Sciences.\n", "@language": "en"}, {"@value": "SLU:s l\u00e5ngliggande jordbruksf\u00f6rs\u00f6k \u00e4r en rikst\u00e4ckande forskningsinfrastruktur som best\u00e5r av f\u00f6rs\u00f6k inom hydroteknik, jordbearbetning, landskapsekologi, v\u00e4xtn\u00e4ring, ogr\u00e4sbiologi och bek\u00e4mpning, odlingssystem och odlingssystem i norra Sverige. De anv\u00e4nds f\u00f6r att studera hur v\u00e4xtf\u00f6ljder och odlings\u00e5tg\u00e4rder inom jordbruket p\u00e5verkar markegenskaper och sk\u00f6rdar p\u00e5 l\u00e5ng sikt, och hur v\u00e4der och klimat p\u00e5verkar effekten av dessa behandlingar. F\u00f6rs\u00f6ksplatserna och de data som samlas in i de l\u00e5ngliggande f\u00f6rs\u00f6ken \u00e4r en v\u00e4rdefull resurs f\u00f6r forskning, undervisning och r\u00e5dgivning. Experimenten \u00e4r \u00f6ppna f\u00f6r dem som vill anv\u00e4nda redan insamlad data eller som vill g\u00f6ra egna provtagningar. Alla l\u00e5ngsiktiga experiment finansieras av NJ-fakulteten och administreras av en akademisk institution, d\u00e4r verksamheten samordnas av en kommitt\u00e9.\n\nTjugofyra l\u00e5ngliggande f\u00e4ltf\u00f6rs\u00f6k inom v\u00e4xtn\u00e4ring sk\u00f6ts f\u00f6r n\u00e4rvarande av institutionen f\u00f6r mark och milj\u00f6 vid Sveriges Lantbruksuniversitet. Dessa experiment, som b\u00f6rjade mellan 1936 och 2010, \u00e4r \u200b\u200bgrupperade i \u00e5tta olika f\u00f6rs\u00f6kserier som fokuserar p\u00e5 teman som agronomiskt relevanta faktorer inklusive kalkning, fosfor, l\u00e5ngsiktig markb\u00f6rdighet, markens organiskt material och markbiologi. V\u00e4xt- och jordprover har samlats in, m\u00e4tts f\u00f6r standardparametrar och arkiverats sedan starten av f\u00f6rs\u00f6ket, vilket utg\u00f6r grunden f\u00f6r \u00f6ver 200 avhandlingar och uppsatser inom ett brett spektrum av discipliner.\n\nRamf\u00f6rs\u00f6ket \u00e4r bel\u00e4get p\u00e5 Ultuna Campus vid Sveriges lantbruksuniversitet och har p\u00e5g\u00e5tt sedan 1956. Syftet med f\u00f6rs\u00f6ket \u00e4r att studera effekten av olika kombinationer av organiskt material och kv\u00e4veg\u00f6dsling p\u00e5 markens inneh\u00e5ll av organiskt material samt p\u00e5 sk\u00f6rdeniv\u00e5 och gr\u00f6dans n\u00e4ringsinneh\u00e5ll. Denna datasamling inneh\u00e5ller v\u00e4rden f\u00f6r n\u00e4ringsinneh\u00e5ll i gr\u00f6da, jord och organiskt material samt sk\u00f6rdar mellan 1956 och 2023. Data i fysisk form som samlats in av forskare sedan experimentets b\u00f6rjan, tillsammans med v\u00e4xt- och jordprover som samlats in fr\u00e5n en delm\u00e4ngd av tidpunkter under experimentets g\u00e5ng, lagras vid Sveriges lantbruksuniversitet. \n", "@language": "sv"}], "creator": [{"@type": "Organization", "@id": "https://ror.org/02yy8x990", "sameAs": "https://ror.org/02yy8x990", "name": [{"@value": "Swedish University of Agricultural Sciences", "@language": "en"}, {"@value": "Sveriges lantbruksuniversitet", "@language": "sv"}]}], "contributor": [{"@type": "Person", "@id": "https://orcid.org/0000-0002-8953-154X", "sameAs": "https://orcid.org/0000-0002-8953-154X", "name": "Sabina Braun", "email": "sabina.braun@slu.se", "affiliation": [{"@type": "Organization", "name": [{"@value": "Swedish University of Agricultural Sciences, Department of Soil and Environment", "@language": "en"}, {"@value": "Sveriges lantbruksuniversitet, Institutionen f\u00f6r mark och milj\u00f6", "@language": "sv"}], "@id": "https://ror.org/02yy8x990"}]}, {"@type": "Person", "name": "Emme Macdonald", "email": "emme.mac.donald@slu.se", "affiliation": [{"@type": "Organization", "name": [{"@value": "Swedish University of Agricultural Sciences, Department of Soil and Environment", "@language": "en"}, {"@value": "Sveriges lantbruksuniversitet, Institutionen f\u00f6r mark och milj\u00f6", "@language": "sv"}], "@id": "https://ror.org/02yy8x990"}]}, {"@type": "Person", "@id": "https://orcid.org/0000-0002-7536-3944", "sameAs": "https://orcid.org/0000-0002-7536-3944", "name": "Grace Pold", "email": "grace.pold@slu.se", "affiliation": [{"@type": "Organization", "name": [{"@value": "Swedish University of Agricultural Sciences, Department of Soil and Environment", "@language": "en"}, {"@value": "Sveriges lantbruksuniversitet, Institutionen f\u00f6r mark och milj\u00f6", "@language": "sv"}], "@id": "https://ror.org/02yy8x990"}]}, {"@type": "Person", "name": "Sven L. 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