Best management practices (BMPs) and cropping systems for mitigating agricultural nonpoint source nutrient pollution include cover crops, and these practices are generally noted for providing a range of environmental benefits. The study aimed to evaluate the water quality implications of vegetation-based conservation practices and biomass production through landscape design at the watershed scale.
Recent interest in improving soil health has emphasized the need for conservation systems that increase soil organic carbon (SOC) sequestration without negative impacts on crop yield. Cover cropping diversifies cropping systems, lowers soil temperature, and increases SOC sequestration. The goal of this study was to evaluate the SOC dynamics of dryland cropping systems under diverse […]
Cover cropping is increasingly considered in semiarid regions to increase soil organic matter sequestration and improve soil health because of their biomass carbon contribution, soil temperature moderation, moisture conservation, soil aggregation, and aggregate stability. This study was implemented to examine the effect of cover crops on soil carbon dioxide emission in limited irrigation cropping systems […]
The potential for cover crops to decrease agricultural nutrient losses and improve soil health has sparked a reemergence of interest in the practice. Though, recent studies have shown that there is a reluctance to adopt cover crops and producers identify matters like familiarity with cover crops, species selection and economic return, or lack thereof, as […]
Conservation Soybean Production Systems in the Mid-Southern USA: II. Replacing Subsoiling with Cover Crops
The early soybean production system (ESPS) is the highest yielding soybean production system in the mid-southern U.S. but requires subsoiling to maximize yield and profitability. The inclusion of cereal rye as a cover crop in conservation tillage systems may be a means to increase ground coverage and reduce tillage in the ESPS. The objective of […]
Cover Crop Diversity for Weed Suppression and Crop Yield in a Corn-Soybean Production System in Tennessee
Weed infestation is one of the major agronomic challenges in row-crop production. Weed suppression can be achieved by cover crops (CC) due to several reasons including the amount of CC biomass produced, decreased light availability, allelopathic inhibition, and competition for resources. This study was conducted to determine the multi-year effects of CC species diversity and […]