cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15482/usda.adc/26504422.v1
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.
DOI: 10.15482/usda.adc/25954171
title: Data from: Crop Sequence and Nitrogen Fertilization Effects on Soil Properties in the Western Corn Belt

description: Understanding long-term management effects on soil properties is necessary to determine the sustainability of cropping systems. Documentation of soil property responses to corn-based cropping systems in the Western Corn Belt, however, is limited. A study was conducted near Mead, Nebraska to document the effects of four crop sequences (continuous corn, corn-soybean, corn-oat+clover-grain sorghum-soybean, corn-soybean-grain sorghum-oat+clover) and three nitrogen (N) rates (zero, low, high) on a suite of soil properties. At the time of sampling (spring 1999), treatments had been in place for 16 years. Soil samples were collected from two depths using a 1.8 cm step-down probe: 0-7.6 cm and 0-30.5 cm. Soil pH and electrical conductivity was estimated from a 1:1 soil-water mixture. Soil nitrate-N was measured using 1:10 soil-KCl extracts and the cadmium reduction method. Extractable P was determined by the Bray P-1 method. Particulate organic matter was determined by weight loss-on-ignition. Total carbon and N were determined by dry combustion. Potentially mineralizable N was determined by anerobic incubation, while microbial biomass was estimated by microwave irradiation. Soils data were used to identify associations with 16-year averages of grain and stover yield, grain and stover N uptake, and post-harvest soil nitrate-N. Data may be used to understand soil responses to corn-based cropping systems under rainfed conditions in a humid continental climate. Applicable USDA soil types include Yutan, Tomek, and Fillmore.
DOI: 10.15482/usda.adc/25954171.v1
title: Data from: Crop Sequence and Nitrogen Fertilization Effects on Soil Properties in the Western Corn Belt

description: Understanding long-term management effects on soil properties is necessary to determine the sustainability of cropping systems. Documentation of soil property responses to corn-based cropping systems in the Western Corn Belt, however, is limited. A study was conducted near Mead, Nebraska to document the effects of four crop sequences (continuous corn, corn-soybean, corn-oat+clover-grain sorghum-soybean, corn-soybean-grain sorghum-oat+clover) and three nitrogen (N) rates (zero, low, high) on a suite of soil properties. At the time of sampling (spring 1999), treatments had been in place for 16 years. Soil samples were collected from two depths using a 1.8 cm step-down probe: 0-7.6 cm and 0-30.5 cm. Soil pH and electrical conductivity was estimated from a 1:1 soil-water mixture. Soil nitrate-N was measured using 1:10 soil-KCl extracts and the cadmium reduction method. Extractable P was determined by the Bray P-1 method. Particulate organic matter was determined by weight loss-on-ignition. Total carbon and N were determined by dry combustion. Potentially mineralizable N was determined by anerobic incubation, while microbial biomass was estimated by microwave irradiation. Soils data were used to identify associations with 16-year averages of grain and stover yield, grain and stover N uptake, and post-harvest soil nitrate-N. Data may be used to understand soil responses to corn-based cropping systems under rainfed conditions in a humid continental climate. Applicable USDA soil types include Yutan, Tomek, and Fillmore.
DOI: 10.15482/usda.adc/25805209
title: Data from: Short-term soil responses to late-seeded cover crops in a semi-arid environment

description: Cover crops can enhance desirable agricultural outcomes such as improved nutrient-use efficiency, soil tilth, reduced pests, and increased yield and yield stability. Documentation of soil property responses to cover crops in semiarid cropping systems, however, is limited. A study was conducted to evaluate soil responses to late-summer seeded cover crops in a no-tillage cropping system under semiarid conditions. The study was conducted over three years on the Area IV Soil Conservation Districts Cooperative Research Farm near Mandan, ND, USA. Cover crops were seeded into dry pea residue in mid- to late August in 19-cm rows. Cover crop metrics included aboveground biomass, while soil metrics included soil water content, soil nitrate-N, near-surface soil properties, and soil coverage by residue. Cover crop biomass was measured immediately before a killing frost. Soil water content was measured before cover crop seeding, immediately after a killing frost, and the following spring using a neutron soil moisture meter. Soil nitrate-N was measured before cover crop seeding and the following spring using 1:10 soil-KCl extracts and the cadmium reduction method. The cover crop growing period ranged from 56 to 70 d. Data may be used to understand soil responses to late-summer seeded cover crops under rainfed conditions in a semiarid continental climate. Applicable USDA soil types include Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25805209.v1
title: Data from: Short-term soil responses to late-seeded cover crops in a semi-arid environment

description: Cover crops can enhance desirable agricultural outcomes such as improved nutrient-use efficiency, soil tilth, reduced pests, and increased yield and yield stability. Documentation of soil property responses to cover crops in semiarid cropping systems, however, is limited. A study was conducted to evaluate soil responses to late-summer seeded cover crops in a no-tillage cropping system under semiarid conditions. The study was conducted over three years on the Area IV Soil Conservation Districts Cooperative Research Farm near Mandan, ND, USA. Cover crops were seeded into dry pea residue in mid- to late August in 19-cm rows. Cover crop metrics included aboveground biomass, while soil metrics included soil water content, soil nitrate-N, near-surface soil properties, and soil coverage by residue. Cover crop biomass was measured immediately before a killing frost. Soil water content was measured before cover crop seeding, immediately after a killing frost, and the following spring using a neutron soil moisture meter. Soil nitrate-N was measured before cover crop seeding and the following spring using 1:10 soil-KCl extracts and the cadmium reduction method. The cover crop growing period ranged from 56 to 70 d. Data may be used to understand soil responses to late-summer seeded cover crops under rainfed conditions in a semiarid continental climate. Applicable USDA soil types include Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25487827
title: <b>Data from: Water quality of an integrated crop–livestock system in the northern Great Plains</b>

description: Integrated crop-livestock (ICL) systems can potentially increase agricultural productivity in an environmentally sustainable manner. Impacts of ICL systems on water quality, however, have not been adequately studied. Rainfall simulations were used to examine effects of cropland and grass pasture vegetation types on surface runoff and water infiltrating into soil in a long-term ICL study near Mandan, ND USA. Simulations were conducted before and after grazing over a two-year period (August 2017 – May 2019). Water quality parameters included nitrate-N, nitrite-N, ammonia-N, phosphate-P, and total suspended solid (TSS) concentrations and loads in surface and infiltration waters. Water N and P compounds were determined using an AQ1 Discrete Analyzer, while TSS concentrations were determined by mass difference after passing a known sample volume through filter paper and drying to a constant mass. Surface runoff loads for N and P compounds were calculated by the sum of sample concentrations multiplied by sample volumes for all samples collected during each simulation event. As a supplement to water quality parameters, plant biomass and litter samples were collected, and percent cover of living vegetation, vegetation litter, and bare ground were estimated within a representative area of the sample site. Data may be used to understand ICL system impacts on water quality and are generally applicable to cropland and rangeland under a semiarid continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25487827.v1
title: <b>Data from: Water quality of an integrated crop–livestock system in the northern Great Plains</b>

description: Integrated crop-livestock (ICL) systems can potentially increase agricultural productivity in an environmentally sustainable manner. Impacts of ICL systems on water quality, however, have not been adequately studied. Rainfall simulations were used to examine effects of cropland and grass pasture vegetation types on surface runoff and water infiltrating into soil in a long-term ICL study near Mandan, ND USA. Simulations were conducted before and after grazing over a two-year period (August 2017 – May 2019). Water quality parameters included nitrate-N, nitrite-N, ammonia-N, phosphate-P, and total suspended solid (TSS) concentrations and loads in surface and infiltration waters. Water N and P compounds were determined using an AQ1 Discrete Analyzer, while TSS concentrations were determined by mass difference after passing a known sample volume through filter paper and drying to a constant mass. Surface runoff loads for N and P compounds were calculated by the sum of sample concentrations multiplied by sample volumes for all samples collected during each simulation event. As a supplement to water quality parameters, plant biomass and litter samples were collected, and percent cover of living vegetation, vegetation litter, and bare ground were estimated within a representative area of the sample site. Data may be used to understand ICL system impacts on water quality and are generally applicable to cropland and rangeland under a semiarid continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25416649
title: <b>Data from: Soil CO2 Efflux Dynamics in an Integrated Crop-Livestock System</b>

description: Integrated crop-livestock (ICL) systems combine crop and livestock production and have been found to improve soil health. However, there is limited understanding of how ICL systems affect soil carbon (C) dynamics, especially in semi-arid regions. To better understand C responses to ICL systems, a 3-yr study was conducted near Mandan, ND, USA. Carbon dioxide efflux, aboveground biomass, and soil C measurements were made in grazed and ungrazed ICL system crop rotations and grass pasture. Treatments were replicated four times. Measurements of CO<sub>2</sub> efflux were made using static chamber methodology 93 times over the study period (14 Oct 2016 – 16 Oct 2019). Aboveground biomass, soil organic matter, water-soluble C and N, and C mineralization were measured annually following standard protocols. Aboveground biomass was expressed as mass units of C per unit area assuming a plant tissue C concentration of 45%. Data may be used to understand CO<sub>2</sub> efflux, aboveground biomass, and soil C dynamics in ICL production systems. 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/25416649.v1
title: <b>Data from: Soil CO2 Efflux Dynamics in an Integrated Crop-Livestock System</b>

description: Integrated crop-livestock (ICL) systems combine crop and livestock production and have been found to improve soil health. However, there is limited understanding of how ICL systems affect soil carbon (C) dynamics, especially in semi-arid regions. To better understand C responses to ICL systems, a 3-yr study was conducted near Mandan, ND, USA. Carbon dioxide efflux, aboveground biomass, and soil C measurements were made in grazed and ungrazed ICL system crop rotations and grass pasture. Treatments were replicated four times. Measurements of CO<sub>2</sub> efflux were made using static chamber methodology 93 times over the study period (14 Oct 2016 – 16 Oct 2019). Aboveground biomass, soil organic matter, water-soluble C and N, and C mineralization were measured annually following standard protocols. Aboveground biomass was expressed as mass units of C per unit area assuming a plant tissue C concentration of 45%. Data may be used to understand CO<sub>2</sub> efflux, aboveground biomass, and soil C dynamics in ICL production systems. 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/25330684
title: Data from: Grazing Effects on Nitrous Oxide Flux in an Integrated Crop-Livestock System

description: Integrated crop-livestock (ICL) systems represent a promising approach to sustainably intensify agricultural production. However, the inherent complexity of ICL systems contributes to potential tradeoffs among production, economic, and environmental attributes. Among the many important environmental metrics associated with agricultural production, nitrous oxide (N<sub>2</sub>O) flux from soil is prominent for its dual role as a strong greenhouse gas and its capacity to deplete ozone in the stratosphere. Unfortunately, there is limited understanding of ICL system effects on N<sub>2</sub>O flux from soil, especially in North America. Given this context, soil-atmosphere N<sub>2</sub>O flux was measured from ICL and non-ICL practices over a 3-year period near Mandan, ND USA. Evaluated treatments included grazed and ungrazed cropland and grassland, each replicated four times. Measurements of N<sub>2</sub>O flux were made using static chamber methodology 93 times over the study period (14 Oct 2016 – 16 Oct 2019). Near-surface soil water content and temperature were measured concurrently with N<sub>2</sub>O flux when the soil was not frozen. Seasonal measurements of soil bulk density, soil pH, and extractable nitrate-N and ammonium-N were evaluated in all treatments each year. Data may be used to understand N<sub>2</sub>O flux and soil property dynamics in ICL production systems. 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/25330684.v1
title: Data from: Grazing Effects on Nitrous Oxide Flux in an Integrated Crop-Livestock System

description: Integrated crop-livestock (ICL) systems represent a promising approach to sustainably intensify agricultural production. However, the inherent complexity of ICL systems contributes to potential tradeoffs among production, economic, and environmental attributes. Among the many important environmental metrics associated with agricultural production, nitrous oxide (N<sub>2</sub>O) flux from soil is prominent for its dual role as a strong greenhouse gas and its capacity to deplete ozone in the stratosphere. Unfortunately, there is limited understanding of ICL system effects on N<sub>2</sub>O flux from soil, especially in North America. Given this context, soil-atmosphere N<sub>2</sub>O flux was measured from ICL and non-ICL practices over a 3-year period near Mandan, ND USA. Evaluated treatments included grazed and ungrazed cropland and grassland, each replicated four times. Measurements of N<sub>2</sub>O flux were made using static chamber methodology 93 times over the study period (14 Oct 2016 – 16 Oct 2019). Near-surface soil water content and temperature were measured concurrently with N<sub>2</sub>O flux when the soil was not frozen. Seasonal measurements of soil bulk density, soil pH, and extractable nitrate-N and ammonium-N were evaluated in all treatments each year. Data may be used to understand N<sub>2</sub>O flux and soil property dynamics in ICL production systems. Data are generally applicable to cropland under a semiarid Continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.34740/kaggle/dsv/13822402
title: Berita UNNES
DOI: 10.15482/usda.adc/25225919
title: <b>Data from: ‘Field measurement of wind erosion flux and soil erodibility factors as affected by tillage and seasonal drought’</b>

description: There are very few reports in the literature with field measurements of wind erosion flux associated with different forms of tillage management. Measurements of wind erosion flux were conducted to quantify the effects of soil tillage disturbance on wind erosion at a site in south central North Dakota USA in 2003 and 2004. The study was conducted on the Area IV Soil Conservation Districts Research Farm. The study site consisted of gently rolling topography (0-3%) with Temvik-Wilton silt loam soils (USDA: Fine-silty, mixed, superactive frigid Typic and Pachic Haplustolls). Three tillage treatments were included in the study: no-tillage (NT), an intermediate level of disturbance, one-pass tandem disk tillage (TDT), and a heavier level of disturbance, two-pass offset disk tillage (ODT). Erosion flux was measured with sediment samplers of the Big Spring Number Eight type from May through September each year. Sediment samplers were positioned near the peripheries of plots and captured soil flux between 5 and 10 cm height. Vertical flux profile was determined by stacked sediment samplers capturing flux at five heights between 5 and 100 cm. Measurements were applied to soil wind erodibility factors, including multiple within-season determinations of prostrate residue coverage (including live material) by marked cable technique, standing residue by photographic means, soil surface roughness by chain method, and twice per season determinations of aggregate size distribution by compact rotary sieve. Data associated with this study should be of interest to soil conservationists, soil scientists, earth scientists, agronomists and others interested in the increased erosion hazards occurring as result of global climate change. Data are generally applicable to croplands under a semiarid Continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25225919.v1
title: <b>Data from: ‘Field measurement of wind erosion flux and soil erodibility factors as affected by tillage and seasonal drought’</b>

description: There are very few reports in the literature with field measurements of wind erosion flux associated with different forms of tillage management. Measurements of wind erosion flux were conducted to quantify the effects of soil tillage disturbance on wind erosion at a site in south central North Dakota USA in 2003 and 2004. The study was conducted on the Area IV Soil Conservation Districts Research Farm. The study site consisted of gently rolling topography (0-3%) with Temvik-Wilton silt loam soils (USDA: Fine-silty, mixed, superactive frigid Typic and Pachic Haplustolls). Three tillage treatments were included in the study: no-tillage (NT), an intermediate level of disturbance, one-pass tandem disk tillage (TDT), and a heavier level of disturbance, two-pass offset disk tillage (ODT). Erosion flux was measured with sediment samplers of the Big Spring Number Eight type from May through September each year. Sediment samplers were positioned near the peripheries of plots and captured soil flux between 5 and 10 cm height. Vertical flux profile was determined by stacked sediment samplers capturing flux at five heights between 5 and 100 cm. Measurements were applied to soil wind erodibility factors, including multiple within-season determinations of prostrate residue coverage (including live material) by marked cable technique, standing residue by photographic means, soil surface roughness by chain method, and twice per season determinations of aggregate size distribution by compact rotary sieve. Data associated with this study should be of interest to soil conservationists, soil scientists, earth scientists, agronomists and others interested in the increased erosion hazards occurring as result of global climate change. Data are generally applicable to croplands under a semiarid Continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.
DOI: 10.15482/usda.adc/25193012
title: <b>Data from: ‘Integrated crop-livestock effects on soil carbon and nitrogen in a semiarid region’</b>

description: Understanding integrated crop-livestock (ICL) management effects on soil carbon and nitrogen can help inform the design of agricultural practices that maintain key soil functions and contribute to agricultural sustainability. In the semiarid northern Great Plains, ICL management effects on soil carbon and nitrogen occur slowly, underscoring the importance of long-term experiments where biophysical metrics are measured consistently over time. In 1999, an ICL experiment was initiated approximately 5 km southwest of Mandan, ND USA on a Temvik-Wilton silt loam soil (USDA: Fine-silty, mixed, superactive frigid Typic and Pachic Haplustoll). The experiment included three residue management treatments, replicated twice: CONTROL (no residue removal), GRAZE (residue removed by livestock grazing), and REMOVED (residue removed by mechanical harvest). Soil properties measured during the study included soil bulk density, total soil nitrogen, soil organic carbon, and soil inorganic carbon. Measurements were made in 1999 (baseline) and 2014. Samples were collected using a hydraulic probe in depth increments of 0-8, 8-15, 15-31, 31-61, 61-91, 91-122 cm. Three cores from each treatment were composited by depth during each sampling. Soil carbon and nitrogen were quantified by the dry combustion method, while soil inorganic carbon was quantified using the volumetric calcimeter method. Data may be used to understand soil property responses to residue management for ICL production systems. Data are generally applicable to cropland under a semiarid Continental climate for the following soil types: Grassna, Linton, Mandan, Temvik, Williams, and Wilton.