Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"soil seedbank"”.
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The Investigation of the Soil Seedbank in a Long-term Mowing and Fertilization Experiment
Seedbanks, the assemblage of dormant seeds found in soils, play a vital role in plant community dynamics and can aid in environmental restoration efforts. Studies have shown that fire suppression, anthropogenic nutrient addition, and human-altered hydrology can all have negative effects on …
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Relationship between seed dormancy and persistence of seeds of annual ruderal species in the soil seedbank
Knowledge related to seed persistence in soil is critical for weed control decisions in the integrated weed management systems. Many annual weed species have dormant soil seed banks (SSBs), and this may be an important mechanism for seed persistence in these species. Although the relationship …
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Role of seed mixes, biochar soil amendment, and the soil seed bank in improving Palouse Prairie restoration
… effective restoration approach. Annual seeds and soil organic matter are important for succession and soil moisture, but their roles are unknown for Palouse prairie restoration. Additionally, the soil seedbank of the Palouse ecoregion is widely unknown but could provide insight into methods or …
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Use of Harvest Weed Seed Control Strategies in Arkansas Soybean
… crop harvest. HWSC focuses on lowering the soil seedbank by targeting weed seeds that pass through a combine at harvest. Experiments were conducted at the University of Arkansas in 2014 and 2015 to test the efficacy of HWSC on weeds in a soybean production system. Palmer amaranth, which has …
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Integration of Herbicide Programs with Cultural and Mechanical Practices for Managing Glyphosate-Resistant Palmer amaranth (Amaranthus palmeri) in Soybean (Glycine max)
… control this weed but also to reduce the soil seedbank using both non-chemical and chemical practices. Studies were conducted to determine the effect of soybean row spacing, seeding rate, and herbicide program on Palmer amaranth emergence, survival, and seed production in soybean, the …
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Weed seed destructor: A harvest weed seed control method to manage waterhemp in soybean
… that can be used to limit weed seed inputs into seedbank at the time of crop harvest. Research on the potential of HWSC methods in the U.S. cropping systems is lacking. Objectives of this research were: 1) to quantify waterhemp seed shatter patterns in Iowa soybean production, 2) to quantify …
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Fire and non-native grass invasion across a heterogeneous landscape in the Central Hardwoods
… fire reduced emergence of M. vimineum from the soil seedbank, plots with a history of prescribed fire exhibited higher M. vimineum biomass and recruitment than unburned plots the following growing season. Soil moisture strongly modulated M. vimineum response to fire, such that the positive …
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Evaluation of Seed Impact Mills for Harvest Weed Seed Control in Soybean and Wheat in the Eastern United States
… preventing seeds from being added to the soil seedbank. Mills like the Redekop Seed Control Unit (SCU) and the integrated Harrington Seed Destructor (iHSD) could be used in soybean and wheat production in the eastern United States. Understanding the effectiveness and limitations of these …
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Decision Support Software for Palmer Amaranth Weed Control
… the long-term effects of management practices on soil seedbank and economics to encourage the adoption of IPM methods for Palmer amaranth.</p>
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Understanding seed-soil adhesion by myxospermous seeds and their biophysical function in agroecosystems
Seedbanks provide many ecosystem services that support wildlife and regulate soil function. The fate of arable seeds is vital in shaping the aboveground composition of plant communities in agroecosystems. Understanding seed fate informs seedbank dynamics with multi-species interactions, as well as …