Author: Krisztina Eleki
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
Book Description
Kura clover has potential as a living mulch for corn production, however understanding the below ground completion is critical for developing best management practices. The first study's objective was to determine kura clover living mulch management effects on root growth. Two kura clover management treatments were compared. In the first a 25-cm band centered on the corn row was suppressed with herbicides. In the second a broadcast herbicide application suppressed all of the kura clover stand. Soil cores containing both corn and kura clover roots were obtained at three distances from the row and at two depths. Root discrimination from these cores was based on 13C ratio analysis. This relationship between 13C and percentage corn roots in calibration samples was linear, and was used to determine corn root percentages within each field core. There were significant corn and kura clover root density depth effects. Corn root density differences were significant between positions, however, significant root growth pattern differences were not observed between treatments. Kura clover management in this study did not affect corn root growth. 13C isotope analysis was a suitable method to discriminate corn and kura clover root materials. As a living mulch, kura clover may also reduce soil erosion, however data are missing. The second study's objective was to determine kura clover cover crop effects on sediment loss, water runoff, and phosphorus losses. Two treatments were compared: a conventionally tilled corn vs. a no-till corn-kura clover living mulch system. Passive infield sediment and runoff collectors were placed in the plots to obtain runoff and sediment from natural rainfall events. The kura clover living mulch treatment significantly reduced the quantity of sediment collected. Runoff was not significantly affected by treatment, but was by date. Runoff patterns were similar for both treatments and total sediment losses remained less than 1 Mg ha−1 for both treatments. When data were segregated as summer and winter events, treatments significantly affected total phosphorus losses in the winter months. The net effect of the kura clover living mulch was to reduce phosphorus loss compared with the tilled surface during the late winter months.
Corn/kura Clover Living Mulch System Effects on Root Growth, Soil Loss, Runoff Water and Water Quality
Author: Krisztina Eleki
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
Book Description
Kura clover has potential as a living mulch for corn production, however understanding the below ground completion is critical for developing best management practices. The first study's objective was to determine kura clover living mulch management effects on root growth. Two kura clover management treatments were compared. In the first a 25-cm band centered on the corn row was suppressed with herbicides. In the second a broadcast herbicide application suppressed all of the kura clover stand. Soil cores containing both corn and kura clover roots were obtained at three distances from the row and at two depths. Root discrimination from these cores was based on 13C ratio analysis. This relationship between 13C and percentage corn roots in calibration samples was linear, and was used to determine corn root percentages within each field core. There were significant corn and kura clover root density depth effects. Corn root density differences were significant between positions, however, significant root growth pattern differences were not observed between treatments. Kura clover management in this study did not affect corn root growth. 13C isotope analysis was a suitable method to discriminate corn and kura clover root materials. As a living mulch, kura clover may also reduce soil erosion, however data are missing. The second study's objective was to determine kura clover cover crop effects on sediment loss, water runoff, and phosphorus losses. Two treatments were compared: a conventionally tilled corn vs. a no-till corn-kura clover living mulch system. Passive infield sediment and runoff collectors were placed in the plots to obtain runoff and sediment from natural rainfall events. The kura clover living mulch treatment significantly reduced the quantity of sediment collected. Runoff was not significantly affected by treatment, but was by date. Runoff patterns were similar for both treatments and total sediment losses remained less than 1 Mg ha−1 for both treatments. When data were segregated as summer and winter events, treatments significantly affected total phosphorus losses in the winter months. The net effect of the kura clover living mulch was to reduce phosphorus loss compared with the tilled surface during the late winter months.
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
Book Description
Kura clover has potential as a living mulch for corn production, however understanding the below ground completion is critical for developing best management practices. The first study's objective was to determine kura clover living mulch management effects on root growth. Two kura clover management treatments were compared. In the first a 25-cm band centered on the corn row was suppressed with herbicides. In the second a broadcast herbicide application suppressed all of the kura clover stand. Soil cores containing both corn and kura clover roots were obtained at three distances from the row and at two depths. Root discrimination from these cores was based on 13C ratio analysis. This relationship between 13C and percentage corn roots in calibration samples was linear, and was used to determine corn root percentages within each field core. There were significant corn and kura clover root density depth effects. Corn root density differences were significant between positions, however, significant root growth pattern differences were not observed between treatments. Kura clover management in this study did not affect corn root growth. 13C isotope analysis was a suitable method to discriminate corn and kura clover root materials. As a living mulch, kura clover may also reduce soil erosion, however data are missing. The second study's objective was to determine kura clover cover crop effects on sediment loss, water runoff, and phosphorus losses. Two treatments were compared: a conventionally tilled corn vs. a no-till corn-kura clover living mulch system. Passive infield sediment and runoff collectors were placed in the plots to obtain runoff and sediment from natural rainfall events. The kura clover living mulch treatment significantly reduced the quantity of sediment collected. Runoff was not significantly affected by treatment, but was by date. Runoff patterns were similar for both treatments and total sediment losses remained less than 1 Mg ha−1 for both treatments. When data were segregated as summer and winter events, treatments significantly affected total phosphorus losses in the winter months. The net effect of the kura clover living mulch was to reduce phosphorus loss compared with the tilled surface during the late winter months.
Mechanical and Thermal Suppression of Kura Clover Living Mulch for Corn Production
Nitrogen Availability, Crop Growth, and Water Quality in a Living Mulch Corn Production System
Author: Joshua Spencer Andrews
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
The impact of living mulch corn production on nitrogen availability, crop growth, and water quality was investigated. Plant, soil, and water samples were taken over the course of two years in research plots and experimental watersheds. A living mulch system reduced corn growth and grain yield when compared to a cereal rye and crimson clover systems due to reduced N availability. A HYDRUS-1D model was used to estimate water and NO3-N leaching below a 1-m depth from planting in April through February of the next year. In the first model period, the living mulch had lower NO3-N loss than both the cereal rye and crimson clover systems, though little NO3-N was lost during the second model period due to drought. On the experimental watersheds, the living mulch likely reduced runoff volume, and both the living mulch and cereal rye systems reduced sediment loss when compared to previous treatments.
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
The impact of living mulch corn production on nitrogen availability, crop growth, and water quality was investigated. Plant, soil, and water samples were taken over the course of two years in research plots and experimental watersheds. A living mulch system reduced corn growth and grain yield when compared to a cereal rye and crimson clover systems due to reduced N availability. A HYDRUS-1D model was used to estimate water and NO3-N leaching below a 1-m depth from planting in April through February of the next year. In the first model period, the living mulch had lower NO3-N loss than both the cereal rye and crimson clover systems, though little NO3-N was lost during the second model period due to drought. On the experimental watersheds, the living mulch likely reduced runoff volume, and both the living mulch and cereal rye systems reduced sediment loss when compared to previous treatments.
Sustainable Grassland Productivity
Author: J. Lloveras
Publisher:
ISBN:
Category : Grasslands
Languages : en
Pages : 882
Book Description
Publisher:
ISBN:
Category : Grasslands
Languages : en
Pages : 882
Book Description
Soil Erosion and Nutrient Runoff in Corn Silage with Kura Clover Living Mulch and Winter Rye
Master's Theses Directories
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 356
Book Description
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 356
Book Description
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Kura Clover Used as a Living Mulch in a Mixed Cropping System
Zone Tillage and Nitrogen Fertilization Response in a Corn-kura Clover Living Mulch System
Author: Agustina Sabalzagaray
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
Development of a White Clover - Corn Living Mulch System
Author: Zachary Paul Sanders
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Corn comprises 95% of the feed grain production in the United States. Between 2006 and 2016, the area dedicated to corn production in the Southeastern US has increased by 50%. Environmental concerns about increased corn production will require producers to adopt more sustainable practices. The first goal of this research was to identify the best agronomic practices for persistence of white clover in a white clover-corn living mulch system. We found that wide corn rows with narrow herbicide bands was the best combination when corn yield and clover re-establishment were considered. The second goal was to measure the water use efficiency of corn and the soil moisture patterns in a white clover-corn living mulch compared to cereal rye and crimson clover cover crops. The living mulch resulted in reduced water use efficiency compared to the other treatments, and reduced soil volumetric water content in both years.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Corn comprises 95% of the feed grain production in the United States. Between 2006 and 2016, the area dedicated to corn production in the Southeastern US has increased by 50%. Environmental concerns about increased corn production will require producers to adopt more sustainable practices. The first goal of this research was to identify the best agronomic practices for persistence of white clover in a white clover-corn living mulch system. We found that wide corn rows with narrow herbicide bands was the best combination when corn yield and clover re-establishment were considered. The second goal was to measure the water use efficiency of corn and the soil moisture patterns in a white clover-corn living mulch compared to cereal rye and crimson clover cover crops. The living mulch resulted in reduced water use efficiency compared to the other treatments, and reduced soil volumetric water content in both years.
Optimizing Establishment of Corn in Cover Crops and Living Mulches to Maintain Yield While Reducing Nitrate Losses
Author: Julie Grossman
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 40
Book Description
As states in the upper Midwest focus on reducing negative water quality impacts of grain corn production, there is a need for innovative production strategies that maintain profitability while minimizing the export of nutrients, agrochemicals, and soil. Maintenance of surface vegetative cover is probably the most effective means to protect soil, but it is challenging to do so in annual row crops. This project determined the effect of differing levels of zone tillage intensity on soil carbon and nitrogen cycling in a corn-kura clover cropping system (Zea maize-Trifolium ambiguum) in an effort to determine impacts on soil N and C. Additionally, the research determined the impacts of these different zone tillage approaches on corn production.
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 40
Book Description
As states in the upper Midwest focus on reducing negative water quality impacts of grain corn production, there is a need for innovative production strategies that maintain profitability while minimizing the export of nutrients, agrochemicals, and soil. Maintenance of surface vegetative cover is probably the most effective means to protect soil, but it is challenging to do so in annual row crops. This project determined the effect of differing levels of zone tillage intensity on soil carbon and nitrogen cycling in a corn-kura clover cropping system (Zea maize-Trifolium ambiguum) in an effort to determine impacts on soil N and C. Additionally, the research determined the impacts of these different zone tillage approaches on corn production.