cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15482/usda.adc/28195697.v1
title: Data from: Experimental evidence that poor soil phosphorus (P) solubility typical of drylands due to calcium co-precipitation favors autonomous plant P acquisition over collaboration with mycorrhizal fungi

description: Dataset that accompanies a research paper entitled, "Experimental evidence that poor soil phosphorus (P) solubility typical of drylands due to calcium co-precipitation favors autonomous plant P acquisition over collaboration with mycorrhizal fungi" published in Soil Biology and Biochemistry September 28, 2024. Files include a readme file, bioassay datasets, and the respective R script for analyzing the individual data files.Results are relevant to arid and semiarid mixed-grass prairie ecosystems with calcareous and alkaline subsoils, especially sites with soils of Eapa loam soil series, frigid Aridic Argiustolls or Mollisols. The focal system was of northern mixed-grass prairie vegetation near Miles City, Montana which is in eastern Montana, USA (soil collection area: 46.304583, -105.978050, elevation 849 m). The study consisted of two pot experiments including: 1) calcium carbonate addition and incubation experiment and 2) calcium carbonate addition and arbuscular mycorrhizal inoculant experiment. The experiments were designed to improve understanding effects of calcium carbonate on soil pH and available phosphorus (via. co-precipitation of calcium and phosphorus) in the absence of plants and mycorrhizal fungi (#1). The other experiment utilized eight plant species, calcium carbonate additions, and mycorrhizal inoculant to discern modes of phosphorus acquisition by plants (i.e. root P mining versus mycorrhizal collaboration; #2) over a soluble phosphorus gradient. Pot experiments utilized completely randomized designs. #1 was a single factor experiment with four calcium carbonate addition levels. #2 was a three factor experiment with eight plant species, four calcium carbonate levels, and a mycorrhizal inoculant treatment. Data include soil pH, soil nutrients, shoot phosphorus, shoot manganese, mycorrhizal responsiveness (i.e. Cohen's D), total plant biomass, shoot biomass, and root mass ratio.Additional details can be found in the readme file, manuscript, and manuscript's supplement.
DOI: 10.15482/usda.adc/28507061
title: Water chemistry data for three agricultural ponds in the southern Coastal Plain of Georgia, USA

description: Ponds used to capture and store water for irrigation are a common feature in agricultural landscapes of the southern Coastal Plain of Georgia, USA. However, not much is known about the biogeochemistry of these ponds. As part of a project describing water quality in irrigation ponds of agricultural landscapes, pond water samples were collected from October 2021 to October 2023 at three ponds in Georgia, USA. Two ponds were located on a farm near Ty Ty, GA (Ty Ty Cooperator Farm, TCF) and one pond was located on a farm near Sumner, GA (Sumner Cooperator Farm, SCF; 31.614247, -83.710532). The two ponds on the TCF are identified as TCF-North (TCF-N; 31.5139853, -83.6177578) and TCF-South (TCF-S; 31.5086980, -83.6167862). The TCF is a rotational cropland while the SCF is an integrated crop-livestock farm. At each pond, water samples were collected at various locations along the edges (littoral sites) and in the center (limnetic sites). At the limnetic sites, samples were collected at the water surface and at 1 m depth. Water samples were collected in 500 mL pre-washed plastic bottles using a peristaltic pump and kept on ice until returned to the laboratory. The samples were filtered (934-AH, Whatman) and the filtrate was split for various chemical analyses including dissolved nutrients (ammonia-N, nitrate-N, nitrite-N, orthophosphate-P, and chloride) using flow injection analysis with colorimetric detection, dissolved micro- and macronutrients (aluminum, arsenic, boron, calcium, iron, potassium, magnesium, manganese, molybdenum, sodium, phosphorus, sulfur, silica, and vanadium) using Inductively Coupled Plasma with Optical Emission Spectroscopy (ICP-OES), and optical characteristics of the dissolved organic matter using UV-Visible and Fluorescence spectroscopy.
DOI: 10.15482/usda.adc/28507061.v1
title: Water chemistry data for three agricultural ponds in the southern Coastal Plain of Georgia, USA

description: Ponds used to capture and store water for irrigation are a common feature in agricultural landscapes of the southern Coastal Plain of Georgia, USA. However, not much is known about the biogeochemistry of these ponds. As part of a project describing water quality in irrigation ponds of agricultural landscapes, pond water samples were collected from October 2021 to October 2023 at three ponds in Georgia, USA. Two ponds were located on a farm near Ty Ty, GA (Ty Ty Cooperator Farm, TCF) and one pond was located on a farm near Sumner, GA (Sumner Cooperator Farm, SCF; 31.614247, -83.710532). The two ponds on the TCF are identified as TCF-North (TCF-N; 31.5139853, -83.6177578) and TCF-South (TCF-S; 31.5086980, -83.6167862). The TCF is a rotational cropland while the SCF is an integrated crop-livestock farm. At each pond, water samples were collected at various locations along the edges (littoral sites) and in the center (limnetic sites). At the limnetic sites, samples were collected at the water surface and at 1 m depth. Water samples were collected in 500 mL pre-washed plastic bottles using a peristaltic pump and kept on ice until returned to the laboratory. The samples were filtered (934-AH, Whatman) and the filtrate was split for various chemical analyses including dissolved nutrients (ammonia-N, nitrate-N, nitrite-N, orthophosphate-P, and chloride) using flow injection analysis with colorimetric detection, dissolved micro- and macronutrients (aluminum, arsenic, boron, calcium, iron, potassium, magnesium, manganese, molybdenum, sodium, phosphorus, sulfur, silica, and vanadium) using Inductively Coupled Plasma with Optical Emission Spectroscopy (ICP-OES), and optical characteristics of the dissolved organic matter using UV-Visible and Fluorescence spectroscopy.
DOI: 10.15468/dl.auu4d2
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aphylla exilis",
 "DecimalLongitude is not null",
 "DecimalLatitude is not null"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003004-251120083545085/datasets/export for details.
DOI: 10.15482/usda.adc/29206358
title: Data from: Integrated Crops and Livestock in Central North Dakota, USA: Agroecosystem Management to Buffer Soil Change

description: Integrated crop-livestock systems have been identified as having positive agronomic and environmental outcomes, but information documenting their long-term impact on soil properties is lacking. An integrated crop-livestock study was conducted to evaluate the effects of residue management, frequency of hoof traffic, season, and production system (integrated annual cropping vs. perennial grass) on soil properties at the 0-7.5 cm depth from 2001 through 2008. The study was conducted at the USDA-ARS Northern Great Plains Research Laboratory, Mandan, North Dakota, USA. Soil bulk density, electrical conductivity, soil pH, extractable N and P, potentially mineralizable N, soil organic carbon, and total nitrogen were measured 3, 6, and 9 years after treatment establishment. Electrical conductivity and pH were estimated from a 1:1 soil-water mixture. Soil nitrate-N and ammonium-N were determined from 1:10 soil-KCl (2 M) extracts using cadmium reduction followed by a modified Griess-Ilosvay method and indophenol blue reaction. Plant-available soil P was estimated by bicarbonate extraction. Potentially mineralizable N was estimated from the ammonium-N accumulated after a 7-d anaerobic incubation. Total soil carbon and nitrogen were determined by dry combustion. Values for soil properties were incorporated into a soil quality index to assess production system effects on soil condition using the Soil Management Assessment Framework. Data may be used to understand integrated crop-livestock system impacts on near-surface soil properties. Data are generally applicable to cropland under a semiarid continental climate for the following USDA soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/29206358.v1
title: Data from: Integrated Crops and Livestock in Central North Dakota, USA: Agroecosystem Management to Buffer Soil Change

description: Integrated crop-livestock systems have been identified as having positive agronomic and environmental outcomes, but information documenting their long-term impact on soil properties is lacking. An integrated crop-livestock study was conducted to evaluate the effects of residue management, frequency of hoof traffic, season, and production system (integrated annual cropping vs. perennial grass) on soil properties at the 0-7.5 cm depth from 2001 through 2008. The study was conducted at the USDA-ARS Northern Great Plains Research Laboratory, Mandan, North Dakota, USA. Soil bulk density, electrical conductivity, soil pH, extractable N and P, potentially mineralizable N, soil organic carbon, and total nitrogen were measured 3, 6, and 9 years after treatment establishment. Electrical conductivity and pH were estimated from a 1:1 soil-water mixture. Soil nitrate-N and ammonium-N were determined from 1:10 soil-KCl (2 M) extracts using cadmium reduction followed by a modified Griess-Ilosvay method and indophenol blue reaction. Plant-available soil P was estimated by bicarbonate extraction. Potentially mineralizable N was estimated from the ammonium-N accumulated after a 7-d anaerobic incubation. Total soil carbon and nitrogen were determined by dry combustion. Values for soil properties were incorporated into a soil quality index to assess production system effects on soil condition using the Soil Management Assessment Framework. Data may be used to understand integrated crop-livestock system impacts on near-surface soil properties. Data are generally applicable to cropland under a semiarid continental climate for the following USDA soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/29052677
title: Data from: Soil hydrological attributes of an integrated crop-livestock agroecosystem: Increased adaptation through resistance to soil change

description: Integrated crop-livestock systems can have positive agronomic and environmental benefits compared to specialized, single-enterprise production systems. However, concerns exist regarding the effect of livestock in integrated systems to cause soil compaction and decrease water infiltration rates. A study was conducted to evaluate the effects of residue management, frequency of hoof traffic, season, and production system (e.g., integrated annual cropping vs. perennial grass) on infiltration rates in central North Dakota. Infiltration measurements were made using single-ring infiltrometers by inserting a 15 cm (inner diameter) aluminum ring into the soil and applying two separate applications of water within the enclosed space of the ring. The volume of water for each application was equivalent to a 2.54 cm depth (1 inch) within the ring. The time necessary for each application of water to infiltrate into the soil was recorded, and only data from the second water application was used for analysis. Data may be used to understand integrated crop-livestock system impacts on water infiltration. Data are generally applicable to cropland under a semiarid continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/29052677.v1
title: Data from: Soil hydrological attributes of an integrated crop-livestock agroecosystem: Increased adaptation through resistance to soil change

description: Integrated crop-livestock systems can have positive agronomic and environmental benefits compared to specialized, single-enterprise production systems. However, concerns exist regarding the effect of livestock in integrated systems to cause soil compaction and decrease water infiltration rates. A study was conducted to evaluate the effects of residue management, frequency of hoof traffic, season, and production system (e.g., integrated annual cropping vs. perennial grass) on infiltration rates in central North Dakota. Infiltration measurements were made using single-ring infiltrometers by inserting a 15 cm (inner diameter) aluminum ring into the soil and applying two separate applications of water within the enclosed space of the ring. The volume of water for each application was equivalent to a 2.54 cm depth (1 inch) within the ring. The time necessary for each application of water to infiltrate into the soil was recorded, and only data from the second water application was used for analysis. Data may be used to understand integrated crop-livestock system impacts on water infiltration. Data are generally applicable to cropland under a semiarid continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/28376333
title: Data from: Integrated crop-livestock system effects on soil N, P, and pH in a semiarid region

description: Efficient use of plant nutrients is an important attribute to concurrently achieve production and environmental goals in integrated crop-livestock (ICL) systems. Unfortunately, there is a lack of published findings on soil nutrient dynamics for ICL systems, particularly in semiarid regions. Effects of residue and grazing management on soil nitrate, available phosphorus, and soil pH were evaluated over a 12-yr period for an ICL experiment near Mandan, ND USA. From 1999 to 2011, soil nitrate and phosphorus were measured in three residue management treatments [grazed (GRAZE), mechanical harvest (HAY), no residue removal (CHOP)] every third year across a 122 cm depth, while soil pH was measured prior to deploying ICL treatments in 1999 and again in 2011. Soil samples were collected in each treatment on a grid pattern representing distinct zones differing in livestock impact based on distance from water and shelter. Soil nitrate-N was determined from 1:10 soil KCl (2M) extracts using cadmium reduction, while plant-available soil phosphorus was estimated by bicarbonate extraction. Soil pH was estimated using a 1:1 soil-water ratio. Gravimetric data were converted to a volumetric basis for each sampling depth using field measured soil bulk density from the 2011 sampling. Data were expressed for four soil depths: 1) near-surface (0-8 cm), 2) primary rooting (0-31 cm), 3) subsoil (31-122 cm), and 4) whole profile (0-122 cm). Data may be used to investigate soil nitrate-N, phosphorus, and pH responses to residue and grazing management for ICL systems under dryland conditions in a semiarid continental climate. Applicable USDA soil types include Temvik, Wilton, Grassna, Linton, Mandan, and Williams.
DOI: 10.15482/usda.adc/28376333.v1
title: Data from: Integrated crop-livestock system effects on soil N, P, and pH in a semiarid region

description: Efficient use of plant nutrients is an important attribute to concurrently achieve production and environmental goals in integrated crop-livestock (ICL) systems. Unfortunately, there is a lack of published findings on soil nutrient dynamics for ICL systems, particularly in semiarid regions. Effects of residue and grazing management on soil nitrate, available phosphorus, and soil pH were evaluated over a 12-yr period for an ICL experiment near Mandan, ND USA. From 1999 to 2011, soil nitrate and phosphorus were measured in three residue management treatments [grazed (GRAZE), mechanical harvest (HAY), no residue removal (CHOP)] every third year across a 122 cm depth, while soil pH was measured prior to deploying ICL treatments in 1999 and again in 2011. Soil samples were collected in each treatment on a grid pattern representing distinct zones differing in livestock impact based on distance from water and shelter. Soil nitrate-N was determined from 1:10 soil KCl (2M) extracts using cadmium reduction, while plant-available soil phosphorus was estimated by bicarbonate extraction. Soil pH was estimated using a 1:1 soil-water ratio. Gravimetric data were converted to a volumetric basis for each sampling depth using field measured soil bulk density from the 2011 sampling. Data were expressed for four soil depths: 1) near-surface (0-8 cm), 2) primary rooting (0-31 cm), 3) subsoil (31-122 cm), and 4) whole profile (0-122 cm). Data may be used to investigate soil nitrate-N, phosphorus, and pH responses to residue and grazing management for ICL systems under dryland conditions in a semiarid continental climate. Applicable USDA soil types include Temvik, Wilton, Grassna, Linton, Mandan, and Williams.
DOI: 10.15482/usda.adc/26893984
title: <b>Data from: </b><b>Soil Responses to Inclusion of Corn, Soybean, and Cover Crops under Rainfed Conditions in the Northern Great Plains</b>

description: Increased prevalence of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] throughout the northern Great Plains has impacted the delivery of ecosystem services from agricultural lands. Such service-related impacts are often manifested through alterations in soil properties and processes. A study was conducted to quantify the impacts of crop rotation and tillage on a suite of soil properties near Mandan, ND USA, six years after rotation treatments were updated to include corn, soybean, and annual forages (i.e., full-season cover crop mixture). Crop rotations included spring wheat (Triticum aestivum L.)–soybean, spring wheat–corn–soybean, and spring wheat–corn–cover crop each split by no- and minimum tillage. The cover crop was comprised of spring triticale (Triticale hexaploide Lart,), millet [Setaria italica (L.) Beauv.], canola (Brassica napus subsp. Rapifera), sunflower (Helianthus annuus L.), forage pea (Pisum sativum L.), soybean, and pasja turnip (Brassica campestris spp. L.). All crop phases in each rotation were present every year and treatments were replicated three times. Soil samples were collected in 2018 with a hydraulic probe to a 152.4 cm depth in increments of 0-7.6, 7.6-15.2, 15.2-30.5, 30.5-61.0, 61.0-91.4, 91.4-121.9, and 121.9-152.4 cm. Separate samples for aggregate stability analysis were collected with a trowel from the 0-7.6 cm depth. Soil samples were evaluated for soil bulk density, water-stable aggregates (WSA), electrical conductivity, soil pH, nitrate-nitrogen, available phosphorus, sulfate-sulfur, exchangeable cations (Ca, Mg, K, Na), micronutrients (B, Cu, Fe, Mn, Zn), total soil nitrogen, total carbon, inorganic carbon, and particulate organic matter (POM) carbon and nitrogen. Particulate organic matter (POM) was estimated from material retained on a 0.053 mm sieve analyzed for carbon and nitrogen content by dry combustion. Analyses for POM and WSA were conducted for the 0-7.6 cm depth only. Data may be used to better understand soil property responses to crop rotation and tillage practices under rainfed conditions within a semiarid continental climate. Applicable USDA soil types include Temvik, Wilton, Grassna, Linton, Mandan, and Williams.
DOI: 10.15482/usda.adc/26893984.v1
title: <b>Data from: </b><b>Soil Responses to Inclusion of Corn, Soybean, and Cover Crops under Rainfed Conditions in the Northern Great Plains</b>

description: Increased prevalence of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] throughout the northern Great Plains has impacted the delivery of ecosystem services from agricultural lands. Such service-related impacts are often manifested through alterations in soil properties and processes. A study was conducted to quantify the impacts of crop rotation and tillage on a suite of soil properties near Mandan, ND USA, six years after rotation treatments were updated to include corn, soybean, and annual forages (i.e., full-season cover crop mixture). Crop rotations included spring wheat (Triticum aestivum L.)–soybean, spring wheat–corn–soybean, and spring wheat–corn–cover crop each split by no- and minimum tillage. The cover crop was comprised of spring triticale (Triticale hexaploide Lart,), millet [Setaria italica (L.) Beauv.], canola (Brassica napus subsp. Rapifera), sunflower (Helianthus annuus L.), forage pea (Pisum sativum L.), soybean, and pasja turnip (Brassica campestris spp. L.). All crop phases in each rotation were present every year and treatments were replicated three times. Soil samples were collected in 2018 with a hydraulic probe to a 152.4 cm depth in increments of 0-7.6, 7.6-15.2, 15.2-30.5, 30.5-61.0, 61.0-91.4, 91.4-121.9, and 121.9-152.4 cm. Separate samples for aggregate stability analysis were collected with a trowel from the 0-7.6 cm depth. Soil samples were evaluated for soil bulk density, water-stable aggregates (WSA), electrical conductivity, soil pH, nitrate-nitrogen, available phosphorus, sulfate-sulfur, exchangeable cations (Ca, Mg, K, Na), micronutrients (B, Cu, Fe, Mn, Zn), total soil nitrogen, total carbon, inorganic carbon, and particulate organic matter (POM) carbon and nitrogen. Particulate organic matter (POM) was estimated from material retained on a 0.053 mm sieve analyzed for carbon and nitrogen content by dry combustion. Analyses for POM and WSA were conducted for the 0-7.6 cm depth only. Data may be used to better understand soil property responses to crop rotation and tillage practices under rainfed conditions within a semiarid continental climate. Applicable USDA soil types include Temvik, Wilton, Grassna, Linton, Mandan, and Williams.
DOI: 10.15482/usda.adc/26504422
title: Data from: Near-Surface Soil Property Responses to Forage Production in a Semiarid Region

description: Use of perennial forages in cropping systems can improve soil quality. The length of time needed to accrue improvements in soil condition under perennial forages is unclear, particularly in semiarid regions. A study was conducted to quantify soil responses to perennial grasses, legumes, and grass-legume mixtures over a 5-yr period on a Parshall fine sandy loam near Mandan, ND USA. Five forage treatments and an annual crop treatment were evaluated. Forage treatments included field pea (<i>Pisum sativum </i>L.), intermediate wheatgrass [IMWG; <i>Thinopyrum intermedium</i> (Host) Barkw. & D.R. Dewey subsp. <i>Intermedium</i>], switchgrass (SWG; <i>Panicum virgatum</i> L.), an intermediate wheatgrass-field pea mixture, and a switchgrass-field pea mixture. After the establishment year (2006), alfalfa (<i>Medicago</i> spp.) was seeded in treatments where field pea was present the year before. Continuous spring wheat (<i>Triticum aestivum</i> L.) represented the annual crop treatment. In April of 2008-2011, soil samples within each fall-converted forage treatment and continuous annual crop treatment were collected prior to seeding spring wheat. Samples were collected from the 0-30 cm depth in increments of 0-5, 5-10, 10-20, 20-30 cm using a step-down probe with an inner tip diameter of 3.13 cm. Soil samples were evaluated for soil bulk density, water-stable aggregation, soil pH, total carbon and nitrogen, and particulate organic matter carbon and nitrogen. Assessments of carbon and nitrogen were determined by dry combustion. Water-stable aggregation was measured using the 1-2 mm aggregate fraction. Data may be used to understand soil responses to perennial forages under rainfed conditions in a semiarid continental climate. Applicable USDA soil types include Parshall, Cabba, Farland, Flasher, Lehr, Lihen, Manning, Morton, Straw, Tally, Vebar and Williams.