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Full-Text Articles in Plant Sciences
Pre-Plant Anhydrous Ammonia Placement Consequences On No-Till Versus Conventional-Till Maize Growth And Nitrogen Responses, Peter Kovacs, George E. Van Scoyoc, Thomas A. Doerge, James J. Camberato, Tony J. Vyn
Pre-Plant Anhydrous Ammonia Placement Consequences On No-Till Versus Conventional-Till Maize Growth And Nitrogen Responses, Peter Kovacs, George E. Van Scoyoc, Thomas A. Doerge, James J. Camberato, Tony J. Vyn
Agronomy, Horticulture and Plant Science Faculty Publications
With the advent of precision guidance systems, maize (Zea mays L.) farmers in various tillage systems have more options in pre-plant nutrient banding relative to the intended crop rows. Anhydrous ammonia (NH3) placement during pre-plant application is of interest because of concerns for possible ammonia toxicity to maize seedlings when high NH3 rates are applied too close to the seed row and the need to improve plant-nitrogen (N) use efficiencies. Field studies were conducted between 2010 and 2012 near West Lafayette, IN, to compare traditional angled (diagonally) vs. precision-guided parallel NH3 applications (the latter was offset 15 cm from …
Does The Conversion Of Grasslands To Row Crop Production In Semi-Aridareas Threaten Global Food Supplies, David E. Clay, Sharon A. Clay, Kurtis D. Reitsma, Barry H. Dunn, Alexander J. Smart, Gregg G. Carlson, David Horvath, James J. Stone
Does The Conversion Of Grasslands To Row Crop Production In Semi-Aridareas Threaten Global Food Supplies, David E. Clay, Sharon A. Clay, Kurtis D. Reitsma, Barry H. Dunn, Alexander J. Smart, Gregg G. Carlson, David Horvath, James J. Stone
Agronomy, Horticulture and Plant Science Faculty Publications
In the world's semi-arid regions, high crop demands have produced short term economic incentives to convert food production on native grasslands to dryland row crop food production, while genetic enhancements and equipment have reduced the risk of crop failure. The objectives of this paper were to discuss (1) the importance of considering the long-term sustainability of changing land use in semi-arid regions; (2) the impact of extreme climatic events on ecosystem functioning; and (3) factors contributing to higher crop yields in semi-arid regions. Semi-arid regions contain fragile areas where extreme climate events may be a tipping point that converts an …
Identifying Promising New Falcata Alfalfa Populations For Use In Semiarid Rangelands, Derek Kannenberg
Identifying Promising New Falcata Alfalfa Populations For Use In Semiarid Rangelands, Derek Kannenberg
The Journal of Undergraduate Research
Alfalfa (Medicago sativa L.) is a valuable crop worldwide. In addition to its use as forage, the nitrogen fixation capabilities of root nodules make it a valuable component for improving soil health. Unfortunately, the semi-arid region of the Northern Great Plains introduces a number of environmental stresses that are detrimental to stand establishment and persistence. The ability to produce adventitious shoots from roots is generally considered a favorable trait for increasing stress resistance. This study aimed to identify alfalfa populations possessing the ability to produce adventitious shoot from root segments. Seven Plant Introductions (PIs), selected from the National Plant …