Conference Proceedings Available!
Proceedings
Authors
| Filter results5 paper(s) found. |
|---|
1. Soil Acidification of Cultivated Fields in Semiarid Montana: Adaptation and Challenges to RemediationHistorically, soil acidification was not a problem in Montana because the parent material of most cultivated soils exhibited a neutral to an alkaline reaction. However, fertilizer ammonium‐N use (including urea) by farmers has grown tremendously in recent decades contributing to leading to a downward trend in soil pH and with incidences of soil acidity/Al toxicity now beginning to appear. Here we summarize the results from on-farm sugar beet lime trials to remediate soil acidity; seed-placed... R. Engel, C. Jones |
2. Phosphorus Fertilizer Management and Cover Crop Effects on Phosphorus Loss from No-till Corn and Soybean.Loss of phosphorus from non-point source agricultural sources is a known contributor to the degradation and contamination of surface waters. Therefore, it is imperative to adapt agricultural best management practices which promote and preserve surface water quality. The goal of this study was to quantify the impacts of phosphorus fertilizer management practice (placement and timing) and winter cover crop on concentrations of total suspended solids, total phosphorus, and dissolved reactive phosphorus... E. Carver, N. Nelson, K. Roozeboom, G. Kluitenberg, P. Tomlinson, J. Williams |
3. Evaluating the Trade-offs of Cover Crops in Dryland Wheat Systems of the Colorado PlateauOn the semi-arid Colorado Plateau, dryland farmers are challenged by severely degraded soils and low and increasingly unreliable precipitation. Cover crops have been shown to improve soil fertility and mitigate soil erosion in many regions, but are also associated with use of limited soil moisture, a cost that could mean decreased cash crop productivity for farmers. Most literature on cover crops comes from relatively humid climates, where crop yield penalties due to cover crops may be less pronounced.... L. Eash, A. Berrada, K. Russell, S. Fonte |
4. Investigating Adsorption Capacities of Treated Sewage Byproducts for Their Potential Use As FertilizerAs the global population rapidly grows, food producers of the world are faced with the task of feeding as many as ten billion people by 2050. The current state of fertilizer use cannot support this growth, and the overuse and poor management of fertilizers has degraded soil, water, and air quality over time. The average recovery efficiency of nitrogen by crops is low, only 50% due to the fast dispersion/loss of applied fertilizers to the environment. This leaching of fertilizer often leads to... K. Coyle, L. Slaughter, C. Alvarez-pugliese, G.G. Botte, M. Siebecker |
5. Shining Light on Novel Pathways for Potassium Fixation in SoilCotton has a high demand for potassium, and potassium significantly affects both cotton yield and fiber quality. Thus, bioavailability of potassium from the soil is paramount. Bioavailability and leaching of potassium to crops and from soils has been studied since the 1940s. However, problems that confronted agronomists in the 1980s continue to impact growers and crop production, including unpredictable potassium bioavailability and inconsistent plant response to fertilizer application under a... M. Siebecker, K. Coyle, T. Pham, I. Saldana haworth, E. Schmidt, A. Sharma, K. Lewis |