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| Filter results15 paper(s) found. |
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1. Advances in North Dakota Soil Fertility 2022Following years of accumulating data from field studies using the GreenSeeker™ and Holland Scientific Crop Circle™ active optical sensors, algorithms for use in spring wheat for in-season N application for yield, and immediate post-anthesis N application for protein enhancement have been developed. Both algorithms require an N non-limiting area as a standard. The algorithm for protein enhancement considers whether a cultivar has inherent high protein or lower protein characteristi... D. Franzen, H. Bu, M. Berti, A. Wick |
2. Landscape Position Affects Management Decisions for Crop ProductionLandscape attributes including topographic positions, slope, curvature, elevation, water flow direction and water flow accumulation are well documented in the literature for their effects on crop productivity. Topography influences crop growth and yield by impacting water and nutrient movement in the soil. Under dryland crop production systems, water availability generally depends on topsoil depth, soil organic matter, and curvature of the micro-topography. To improve overall productivity of ... G. Singh , K. Nelson, G. Kaur |
3. N, S and Micronutrient (B + Zn) Interactions in Soft Red Winter Wheat NutritionThis work is intended to answer certain questions that result from the implementation of a multi-element wheat nutrition program. Nitrogen rate is a fundamental driver of wheat yield and quality. However, the impact/value of S or the micronutrients, which are likely components of a more integrated wheat nutrient management program, is not clear.The main study design included 4 rates of N (40, 80, 120 and 160 lb N/acre), 2 rates of S (0 and 10 lb S/acre), and 2 rates of the micronutrient &lsqu... J. Grove, E. Ritchey, J. Shockley |
4. Utilizing Fertilizer and Fungicide Strategies to Enhance Winter Wheat Grain and Straw ProductionThe establishment and overwintering success of Michigan winter wheat (Triticum aestivum L) are often determining yield factors but identifying both autumn and in-season practices that may enhance yield and economic return can be difficult. Additional demand for straw has growers considering inputs that may not only affect grain yield potential but also overall biomass production and serve as another means to improve profitability. Recent research has documented significant grain and ... K. Steinke, L. Suplito, M. Chilvers |
5. Carbon Credit and Sequestration in Agroecosystems; Lessons from Trials in Southern IllinoisA carbon (C) credit is the attribution of net CO2-C equivalent which can be used to decrease climate forcing through a given practice or farming system for a given unit time. Carbon credits allow industries to purchase C that is produced on a farm (i.e., offsets). Carbon can be captured in two ways; (i) by capturing and reducing greenhouse gasses (on a CO2-C equivalent basis), and/or (ii) by increasing soil organic C stocks. Therefore, to enable C credits in the agricult... A. Sadeghpour, A.M. Weidhuner, G. Burkett, O. Zandvakili, O. Adeyemi, C. Kula, J. Berberich, J. Pike, A.J. Margenot |
6. Agronomic Management of Nitrogen to Reduce N2O Emissions in ManitobaNitrous oxide (N2O) emissions from soil accounts for about 20% of Manitoba’s total greenhouse gas (GHG) emissions. Numerous and recent field research has evaluated these emissions as influenced by nitrogen (N) management practices – such as use of enhanced efficiency fertilizers (EEFs), fertilizer placement and timing, use of legume and cover crops and organic farming. Several practices result in considerable decreases in N2O emissions, across a w... J. Heard, M. Tenuta |
7. Cover Crops, Manure, and NitrogenFall seeded cover crops can offer soil and water conservation benefits to dairy-based cropping systems. However, uptake by these fall cover crops can also limit nitrogen availability from the manure to the next crop. Field research projects throughout the state of Wisconsin have been conducted to assess how cover crop specie, biomass, and N uptake influence the amount of supplemental N needed to fertilize the following corn crop to maximize yield. Fall seeded cover crops that winter kill (spr... M. Ruark, A. Waggoner |
8. Pelleted Lime Application Strategies for Iowa Corn and Soybean ProductionResearch has shown inconsistent results about the efficiency of pelleted lime at increasing soil pH or crop yield compared with aglime. Our previous Iowa research (2015-2016) showed that pelleted lime manufactured with limestone from northern Iowa quarries attained maximum soil pH with the same rate and at the same time than finely ground calcium carbonate, but more time was needed for aglime. However, there were no yield differences between the sources for corn-soybean rotations when one-tim... A.P. Mallarino, M.U. Haq |
9. Comparing Yield Goal and Maximum Return to N Based Methods in Predicting Corn Economic Optimal Nitrogen RatesThere are two main N rate recommendation systems used in the U.S.–Yield goal and maximum return to N (MRTN). The current yield-goal based system for calculating corn N rate recommendations in SD has not been evaluated for accuracy since 2013. Therefore, the objective of this project was to 1) evaluate the accuracy of the current yield goal-based equation and 2) create a database of N response trials and evaluate the accuracy of using the MRTN approach for predicting N rate requirements.... J. Clark, P. Kovacs, A. Bly, C. Graham |
10. Is There an Optimal Source of Sulfur for Corn?Sulfur has become a common nutrient applied to corn in the Corn Belt. While research has demonstrated that sulfur can greatly increase yield, the source of sulfur offered to farmers by retailers can vary. Sulfur is only taken up by corn in the sulfate form while sulfur fertilizer source can contain sulfate that is readily available to plants or elemental sulfur which needs to be oxidized to sulfate before it is taken up by a crop. Four long-term research sites were established in Minnesota us... D. Kaiser |
11. Optimizing Nitrogen Management for Sustainable Production of Furrow-Irrigated Corn in Nebraska PanhandleLosses of nitrogen (N) via leaching to groundwater and greenhouse gas emissions pose an environmental and human health threat. The risk for environmental N losses, particularly nitrate leaching loss, is greater in furrow-irrigated fields than those under drip or sprinkler irrigation. Furrow irrigation accounts for 30% of total irrigated acres in Nebraska and approximately 36% in the US. However, much of the efforts for N management improvement are concentrated on sprinkler or drip systems. Th... B. Maharjan, D. Ghimire |
12. Re-evaluating Phosphorus and Potassium Management for Corn, Soybean, and Wheat in OntarioIn Ontario, long term trends show decreasing soil test P and K levels as high crop yields in corn, soybeans, and wheat remove more nutrients than are being replaced through nutrient application. Deficiencies or insufficient available P and K from either the soil, fertilizer applications, or both, could mean that modern yields of these crops are not fully reaching their potential. A long-term project was established between 2010 and 2012 on 4 field sites in Ontario to compare two different fer... D. Hooker, C. Elgie |
13. Assessing Sulfur Response, Utilization Efficiency, and Diagnostic Tools for Corn in KansasEfficient sulfur (S) utilization is crucial for crops' productivity and the sustainability of agricultural systems. This study aims to evaluate the effect of sulfur application on corn production across various Kansas sites and determine how sulfur fertilization affects different growth parameters and diagnostic tools for corn. The study was conducted over the 2021-2022 growing seasons, with a comprehensive field experiment carried out across 26 sites in Kansas. A randomized complete bloc... G. Roa , D. Ruiz diaz |
14. Carryover Effects of Sulfur Fertilization from One Cropping Season to the NextCorn and soybean grain yield increases with S fertilization are not uncommon in Indiana. Low rates of S fertilizer (<15-20 lb S/acre) are needed to maximize grain yield response. We found that sulfate-S fertilizer applied to silt loam or heavier textured soils in one cropping season provided S to the crop grown the next season more often than not. At some S responsive locations, S applied the prior season at 15 to 20 lb S/acre produced yields of the second crop equivalent to crop yields wi... J. Camberato, R. Nielsen |
15. Evaluation of Instinct II and Radiate on Soft Red Winter Wheat in Northwest OhioProducers in Northwest Ohio are encouraged to purchase various additives for urea-ammonium nitrate (UAN) with the expectation to increase grain yields; however, they have limited information on the benefits of these products except what was provided by the selling company. Two products that were commonly promoted were Instinct II, a nitrification inhibitor, and Radiate, a growth regulator. A three-year study was completed at the OARDC Northwest Agricultural Research Station near Custar, Ohio ... E.M. Lentz |