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101 results for “cover crops”
Data from: Native cover crops enhance biodiversity and ecosystem services in hazelnut orchards
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Differential beet leafhopper (<em>Neoalitarsus tenellus</em> (Hemiptera: Cicadellidae)) acceptance of allelopathic barley (<em>Hordeum vulgare</em> (Poales: Poaceae) and brown mustard (<em>Brassica juncea</em> (Brassicales: Brassicacae) cover crops
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Elevation and grassland cover shape natural enemy communities in Kenyan maize crops
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Early-season biomass and weather enable robust cereal rye cover crop biomass predictions
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U.S. cereal rye winter cover crop growth database
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Data from: Quantifying the impact of crop coverings on honey bee orientation and foraging in sweet cherry orchards using RFID
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Data from: Early spring-flowering winter cover crop (<em>Camelina sativa</em>) increases insect flower visits in Wisconsin (USA)
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Data for: Quantifying direct yield benefits of soil carbon increases from cover cropping
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Cover crop application on dredged sediments increases corn yield through microorganism-associated enzyme-driven nutrient mineralization.
Common strategies to mitigate soil degradation of agricultural soils include cover crop application and soil amendment addition. Applying dredged sediments as a soil amendment is gaining popularity since they often provide benefits other amendments lack; however, their use with a cover crop is largely unexplored. To understand how cover crop use changes the restorative properties of dredged sediments, we assessed soil physical and chemical properties, enzymatic activities, and corn yield for plots of dredged sediments with and without a cover crop. Cover crop application on dredged sediments increased corn yields by ~24% when compared to dredged sediments alone. Increases in corn yield were driven by changes in nutrient mineralization, specifically within the nitrogen cycle. The physical and chemical properties of dredged sediments remained unchanged regardless of cover crop application. Our results suggest that when cover crops are applied to dredged sediments, crop yield increased through microorganism-driven nutrient mineralization. However, the physical and chemical environment remained optimal for corn growth within dredged sediments, regardless of cover crop application. This research is a vital step into understanding the use of dredged sediments in agricultural soil systems.
Forest cover and fruit crop size differentially influence frugivory of select rainforest tree species in Western Ghats, India (Part II)
<p><span><span><span><span><span><span><span><span><span><span><span>Forest fragmentation and habitat loss are major disruptors of plant–frugivore interactions, affecting seed dispersal and altering recruitment patterns of tree species dependent on vertebrate dispersers. In a heterogeneous production landscape (primarily tea and coffee plantations) in the southern Western Ghats, India, we <span><span>examined effects of surrounding forest cover and fruit crop size on frugivory of four rainforest bird-dispersed tree species</span></span> (<i>N</i> = 131 trees, ≥ 30 trees per species, observed for 623 h). Frugivore composition differed among the four tree species with the large-seeded <i>Canarium strictum </i>and<i> Myristica dactyloides</i> exclusively dependent on large-bodied avian frugivores, whereas, medium-seeded <i>Persea macrantha</i> and <i>Heynea trijuga </i>were predominantlyvisited by small-bodied and large-bodied avian frugivores, respectively. Using the seed-dispersal-effectiveness framework, we identified effective frugivores and examined their response to forest cover and fruit crop size. Results were idiosyncratic and governed by plant and frugivore traits. Visitations to medium-seeded <i>Persea </i>had a positive relationship with forest cover but the relationship was negative for the large-seeded <i>Myristica</i>. In addition, two of the three effective frugivores for <i>Persea </i>responded to the interactive effect of forest cover and fruit crop size<i>. </i>Frugivore visitations to <i>Hyenea</i> were not related to forest cover or fruit crop and<i> </i>there were too few visitations to <i>Canarium </i>to discern any trends<i>. </i>These results highlight the context-specific response of plant-frugivore interactions to forest cover and fruit crop size influenced by the plant and frugivore traits.</span></span></span></span></span></span></span></span></span></span></span></p>
Forest cover and fruit crop size differentially influence frugivory of select rainforest tree species in Western Ghats, India (Part I)
<p>Forest fragmentation and habitat loss are major disruptors of plant–frugivore interactions, affecting seed dispersal and altering recruitment patterns of tree species dependent on vertebrate dispersers. In a heterogeneous production landscape (primarily tea and coffee plantations) in the southern Western Ghats, India, we <span>examined effects of surrounding forest cover and fruit crop size on frugivory of four rainforest bird-dispersed tree species</span> (<i>N</i> = 131 trees, ≥ 30 trees per species, observed for 623 h). Frugivore composition differed among the four tree species with the large-seeded <i>Canarium strictum </i>and<i> Myristica dactyloides</i> exclusively dependent on large-bodied avian frugivores, whereas, medium-seeded <i>Persea macrantha</i> and <i>Heynea trijuga </i>were predominantly visited by small-bodied and large-bodied avian frugivores, respectively. Using the seed-dispersal-effectiveness framework, we identified effective frugivores and examined their response to forest cover and fruit crop size. Results were idiosyncratic and governed by plant and frugivore traits. Visitations to medium-seeded <i>Persea </i>had a positive relationship with forest cover but the relationship was negativefor the large-seeded <i>Myristica</i>. In addition, two of the three effective frugivores for <i>Persea </i>responded to the interactive effect of forest cover and fruit crop size<i>. </i>Frugivore visitations to <i>Hyenea</i> were not related to forest cover or fruit crop and<i> </i>there were too few visitations to <i>Canarium </i>to discern any trends<i>. </i>These results highlight the context-specific response of plant-frugivore interactions to forest cover and fruit crop size influenced by the plant and frugivore traits.</p>
Forest cover and proximity decrease herbivory and increase crop yield via enhanced natural enemies in soybean fields
<p><span>Non-crop habitats are essential for sustaining biodiversity of beneficial arthropods in agricultural landscapes, which can increase ecosystem services provision and crop yield. However, their effects on specific crop systems are less clear, such as soybean in South America, where the responses of pests and natural enemies to landscape structure have only recently been studied. </span></p> <p><span>Here, we analyzed how native forest fragments at local and landscape scales influenced arthropod communities, herbivory, and yield in soybean fields in central Argentina. To do this, we selected soybean fields located in agricultural landscapes with varying proportions of forest cover. At two distances (10 and 100m) from a focal forest fragment, we sampled natural enemy and herbivore arthropods, and measured soybean herbivory and yield. We focused on herbivore diversity, abundance of key soybean pests in the region (caterpillars and stink bugs), and their generalist and specialist natural enemies.</span></p> <p><span>Higher abundance of predators, lower herbivory rates, and increased yield were found near forests, while overall forest cover in the landscape was positively related with parasitoid and stink bug abundance, soybean yield, and negatively with herbivory. Moreover, yield was positively linked to richness and abundance of generalist and specialist enemies and independent of herbivory according to piecewise Structural Equation Models. </span></p> <p><span><i>Synthesis and applications. </i>Our results show positive effects of native forests on biodiversity and yield in soybean crops, highlighting the need for conservation of forest fragments in agricultural landscapes. Moreover, the relation between natural enemies and crop yield suggests that Chaco forests support a diverse and abundant community of natural enemies that can provide sustained levels of ecosystem services and result in positive effects for farmers.</span></p>
Cover crops improve soil structure and change OC distribution in aggregate fractions
<p>Data set and R script on the statistic evaluation of soil data. The data derived from a long-term field trial at the Asendorf field station 70 km north of Hanover, Germany (49 m above sea level, 52°45′48.4′′N 9°01′24.3′′E). Data include soil data (OC, TN, bulk density, texture) as well as data from soil aggregate fractionation and evaluation of their aggregate stability. All methods and data will be described in an upcoming journal article (DOI will be provided soon).</p>
Data from: Higher avian biodiversity, increased shrub cover, and proximity to continuous forest may reduce pest insect crop loss in small-scale oil palm farming
<p>One of the key ecosystem services offered by avian biodiversity within agricultural landscapes is natural predation. Nonetheless, the current use of biological control agents such as farmland birds in oil palm plantations is relatively limited. The present study aimed to assess the potential roles of avian biodiversity, particularly insectivores which provide natural predation against oil palm herbivorous insects. We also investigated the influence of local- and landscape-scale variables on foliage damage (crown or frond). Our data showed that crown damage decreased with increasing farmland bird richness (overall and insectivore), shrub cover, dried biomass, and elevation, but increased with epiphyte cover, oil palm height, and distance to continuous forest. Frond damage was negatively related to bird richness (overall, insectivore, and non-insectivore) and non-insectivore abundance, elevation, and shrub cover, while increased with insectivorous abundance, epiphyte cover, oil palm height, and distance to continuous forest. We also found that plantations (≥ 50 ha) were more susceptible to foliage damage from pest insects than smallholdings (<50 ha). There was no evidence that indicated the influence of forest patches on foliage damage. Our study highlights the economic value of conserving biodiversity, most notably, farmland birds and continuous forests with respect to biological control of defoliating pests and maintaining yield productivity in oil palm cultivation. Growers, particularly major plantation companies should make oil palm farming more biodiversity-friendly in order to increase the number of biological control agents such as birds.</p>
Data for "Can Regenerative Agriculture increase national soil carbon stocks? Simulated country-scale adoption of reduced tillage, cover cropping, and ley-arable integration using RothC"
<p>R code and supplementary data for soil carbon simulations: "<em>Can Regenerative Agriculture increase national soil carbon stocks? Simulated country-scale adoption of reduced tillage, cover cropping, and ley-arable integration using RothC-26.3</em>"</p>
Efficacy of cover crops for pollinator habitat provision and weed suppression
Pollinator declines have been documented globally, but little information is available about native bee ecology in Midwestern US agriculture. This project seeks to optimize pollinator support and weed suppression in a 3-year crop rotation with a fallow growing season. During fallow, one of five cover crop treatments (T1: crimson, red, and ladino clover and Bob oats [Trifolium incarnatum, T. pratense, T. repens, Avena sativa]; T2: crimson clover and oats; T3: red clover and oats; T4: ladino clover and oats; T5: no cover crop; T6/control: winter wheat [Triticum aestivum]) was seeded in one-half of 25 agricultural fields, while wheat was left unharvested in the other half as a comparison. Treatments that provide season-long floral resources support the greatest bee diversity and abundance (T1), and treatments with red clover support declining Bombus species (T1 and T3). Late-season floral resources may be important, yet limited (T1 and T4), and some species of agricultural weeds provide floral resources. Floral diversity may be less important than flower abundance or timing for pollinator diversity (T1 – T4). Weed diversity was greatest in the no cover crop treatment (T5), least in winter wheat (T6), and intermediate in cover crop treatments (T1 – T4) with no differences in weeds of economic concern. Wheat suppresses weeds but does not provide floral resources for pollinators. These results may also be applicable to marginal lands taken out of cultivation or field margin pollinator plantings in a typical corn-soybean rotation. Floral resource availability across the landscape is critical to maintain pollinator diversity.
Data supporting "A multivariate approach to evaluate reduced tillage systems and cover crop sustainability"
<p>Data supporting "A multivariate approach to evaluate reduced tillage systems and cover crop sustainability" by Sartori et al. (2022) Land, 11, 55. https://doi.org/ 10.3390/land11010055</p>
When Do Cover Crops Reduce Nitrate Leaching? A Global Meta-Analysis
<p>The document includes the dataset extracted from peer-reviewed publications on the effect of cover crops on nitrate leaching. The results and report corresponding to this dataset have been published as a review article entitled: " When Do Cover Crops Reduce Nitrate Leaching? A Global Meta-Analysis" <strong>DOI: </strong>10.1111/gcb.16269 in the Global Change Biology journal.</p>
Data from: 42 years of no-tillage and cover cropping improved soil oxygen availability and resilience
<p>Healthy soil air-water balance is critical for crop growth. Conservation agricultural practices improve soil physical properties to influence soil oxygen availability. We evaluated the impact of 42 years of hairy vetch (HV) cover cropping (CC) and no-tillage (NT) on soil oxygen dynamics during a cotton growing season experiencing multiple intensive rain events in silt loam soil. HV and NT treatments exhibited higher growing season soil oxygen availability (<em>p </em>< 0.05), and experienced 3 to 4 times fewer hours of oxygen limitation (i.e., oxygen concentration <10%) as compared to no cover (NC) and conventional tillage (CT) treatments. After heavy rainfall, NT-HV treatment exhibited the highest soil oxygen availability, followed by NT-NC, CT-HV, and CT-NC treatments (<em>p </em>< 0.05). While CC and/or NT treatments quickly regained soil oxygen status within 24 hours after saturating rain events, CT-NC suffered from sub-optimal soil aeration until the third day post-rainfall. The combination of CC with NT practices enhanced soil oxygen availability and resilience to extreme precipitation events.</p>
Climate change mitigation potential of widespread cover crop adoption in U.S.
<p>This geospatial dataset represents climate change mitigation benefits from widespread cover crop adoption on U.S. cropland. We simulated changes in soil organic carbon stocks and nitrous oxide fluxes over a 20-year period for baseline cover crop adoption rates (derived from historical adoption rates) and a high cover crop adoption (80%) scenario in the continental U.S. Data were generated using the DayCent ecosystem model driven by cropping histories in the USDA National Resources Inventory (NRI) and associated agricultural management data. Here we present the mean and standard deviation of annual soil organic carbon stock changes and nitrous oxide fluxes for both baseline and high cover crop adoption scenarios on a county level.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.