Browsing by Author "Rosen, Carl J"
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Item Aspen response to forest soils amended with municipal and industrial by-products on two Northern Minnesota sites : experimental design and preliminary results(University of Minnesota, 2002-10) Cavaleri, Molly A; Gilmore, Daniel W; Mozaffari, Morteza; Rosen, Carl J; Halbach, Thomas R; Mathison, Russell D; O'Brien, Timothy CThe utilization of municipal and industrial by-products as forest soil amendments can improve forest soil fertility. In this field study, aspen (Populus tremuloides Michx.) seedlings were planted at two forested sites (Itasca and Carlton counties) amended with treatments of biosolids, boiler ash, and inorganic agricultural fertilizers. Experimental treatments included biosolids at rates equivalent to 70, 140, 210, and 280 kg available N ha-1, two types of boiler ash (application rates based on % Effective Neutralizing Power), boiler ash plus biosolids, and an untreated control. Preliminary results are reported for soil properties, aspen seedling survival, height, and caliper. Soil pH decreased with increased N application from both biosolids and fertilizer sources, but increased through additions of boiler ash and lime. Soil P increased with increased biosolids and ash application rates. Soil K increased with ash and K fertilizer applications. No differences were detected in aspen seedling survival among treatments at the conclusion of the first and second growing seasons at either installation. Height differences among treatments were detected through ANOVA in 2000 and 2001, but were inconclusive. Aspen height and caliper growth in Carlton County was greater than in Itasca County.Item Best Management Practices for Nitrogen on Coarse Textured Soils(University of Minnesota Extension, 2008) Rehm, George; Lamb, John; Rosen, Carl J; Randall, GylesItem Best management practices for Nitrogen use in South-Central Minnesota(University of Minnesota Extension, 2008) Randall, Gyles; Rehm, George; Lamb, John; Rosen, Carl JItem Best Management Practices for Nitrogen Use: Irrigated Potatoes(University of Minnesota Extension, 2008) Rosen, Carl J; Bierman, Peter MItem Kidney bean (Phaseolus vulgaris L.) production on an irrigated, coarse-textured soil in response to polymer coated urea and tillage: I. Grain yields, disease severity, and a simple economic analysis(2008-12) Wilson, Melissa L; Moncrief, John F; Rosen, Carl JItem Nutrient management for commercial fruit and vegetable crops in Minnesota(University of Minnesota Extension Service, 2005) Rosen, Carl J; Eliason, RogerSoil testing information, fertilizer information and recommendations, fertigation and foliar fertilization recommendations, nutrient needs , and diagnosing nutrient issues of various fruit and vegetable crops grown in Minnesota.Item Nutrient management for fruit and vegetable crop production: Maintaining soil fertility in an organic system(University of Minnesota Extension Service, 2005) Rosen, Carl J; Bierman, Peter MNutrient management considerations and options for commercial fruit and vegetable growers in Minnesota. Topics include nutrient forms take up by plants, characteristics of organic fertilizers and soil amendments, deciding what amendments are needed, pH management, managing Nitrogen, managing Phosphorus and Potassium, secondary and micronutrients.Item Nutrient management for fruit and vegetable crop production: Nutrient cycling and maintaining soil fertility(University of Minnesota Extension Service, 2005) Bierman, Peter M; Rosen, Carl JThe focus of this bulletin is on biology, placing nutrient cycling at the center of nutrient management, but the biological emphasis is not meant to disregard other factors. The objectives are to examine and illustrate: Biological, chemical, and physical processes plant nutrients go through as they cycle through the soil; How these processes affect nutrient availability to plants and nutrient movement from farm fields to surface or groundwater; Ways to manage crops and soils to maximize nutrient availability and minimize nutrient movement to the surrounding environment. Understanding processes helps identify practical options that fit different farming systems. Understanding nutrient cycles helps all types of farmers maintain the fertility of their soils, while at the same time protecting our water resources.