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Modeling The Response Of Corn Grain Yield To Applied Nitrogen And Water In A Fine Textured Soil In Wisconsin
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Book Synopsis Modeling the Response of Corn Grain Yield to Applied Nitrogen and Water in a Fine Textured Soil in Wisconsin by : Brian Stewart Aldrich
Download or read book Modeling the Response of Corn Grain Yield to Applied Nitrogen and Water in a Fine Textured Soil in Wisconsin written by Brian Stewart Aldrich and published by . This book was released on 1979 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis University of Wisconsin Agronomy Department, the First 100 Years by : University of Wisconsin--Madison. Department of Agronomy
Download or read book University of Wisconsin Agronomy Department, the First 100 Years written by University of Wisconsin--Madison. Department of Agronomy and published by . This book was released on 2003 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1975-03 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Corn Yield in Two Crop Rotations to Different Nitrogen Rates and Nitrapyrin by : Jose P. Quesada
Download or read book Response of Corn Yield in Two Crop Rotations to Different Nitrogen Rates and Nitrapyrin written by Jose P. Quesada and published by . This book was released on 2002 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of nitrapyrin (2-chloro-6-(trichloromethyl) pyridine) is a common practice for attaining better grain yield response to ammonia-N fertilization in corn (Zea mays L.). The majority of the research that deals with use of nitrapyrin is based on studies of 2 to 3 years length. No consistent response to nitrapyrin has been observed in fine-textured soils. The objective of this study is to determine if the long-term effects of annual pre-plant, spring application of ammonia with nitrapyrin in fine-textured soils results in economic benefit when used for corn, in rotations of continuous corn and corn after soybean (Glycine max L.). Two experiments were evaluated, both located near Ames, Iowa. The first was evaluated from 1991 to 1994. Crop rotations were continuous corn and corn after soybean. Crops were planted on a Clarion Loam Soil (Fine-loamy, mixed, superactive, mesic Typic Hapludoll). The experiment was arranged as a split-plot in a randomized, complete block design with four replications. The main plot treatments were nitrapyrin rates of 0 and 0.56 kg ai ha−1. The sub-plots were N rates of 0, 45, 90, 135, and 180 kg N ha−1 for corn following soybean. For the continuous corn rotation, the N rates were 0, 56, 112, 168, and 224 kg N ha−1. The second experiment was evaluated from 1995 to 2000. Soil is a Nicollet loam (Fine-loamy, mixed, superactive, mesic Aquic Hapludoll). The experiment was a factorial arrangement of treatments in a randomized, complete block design. Crop rotations and rates of nitrapyrin and N were the same as in the previous experiment. Neither corn yield nor N-uptake were consistently affected by nitrapyrin application during the entire 10-year period of the study. Differences in post-harvest soil concentrations of NH4-N or N03−-N were rarely significantly different. No proof of environmental benefits due to application of nitrapyrin was observed. In the fine-textured Iowa soils, a possible economic benefit could be obtained from plots with coarser soil texture when using nitrapyrin combined with low rates of N fertilizer. For the fine-textured soils, no economic benefits are expected.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1975 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Soil Nitrate Tests for Predicting Corn Nitrogen Response in the North Central Region by : Larry Gene Bundy
Download or read book Evaluation of Soil Nitrate Tests for Predicting Corn Nitrogen Response in the North Central Region written by Larry Gene Bundy and published by . This book was released on 1999 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Survey of Corn Yield Responses to Various Levels of Fertilization on Several Wisconsin Soils by : Ron Doersch
Download or read book A Survey of Corn Yield Responses to Various Levels of Fertilization on Several Wisconsin Soils written by Ron Doersch and published by . This book was released on 1961 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of the Illinois Soil Nitrogen Test in Wisconsin Cropping Systems by : Jeffrey T. Osterhaus
Download or read book Evaluation of the Illinois Soil Nitrogen Test in Wisconsin Cropping Systems written by Jeffrey T. Osterhaus and published by . This book was released on 2005 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Fertilization of Corn and Oats with Solid, Liquid, and Gaseous Fertilizer Forms Applied to Sands and Medium Textured Soils in the Field by : Leo Everett Orth
Download or read book Nitrogen Fertilization of Corn and Oats with Solid, Liquid, and Gaseous Fertilizer Forms Applied to Sands and Medium Textured Soils in the Field written by Leo Everett Orth and published by . This book was released on 1951 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Management written by and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy News written by and published by . This book was released on 1978 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Book Synopsis Corn Grain and Nitrogen Yield Response to Legume Cover Crop Kill Date and Subirrigation by : Peter Leonard Tiffin
Download or read book Corn Grain and Nitrogen Yield Response to Legume Cover Crop Kill Date and Subirrigation written by Peter Leonard Tiffin and published by . This book was released on 1994 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water and Nitrogen Use Efficiency of Corn (Zea Mays L.) Under Water Table Management by : Ajay Singh
Download or read book Water and Nitrogen Use Efficiency of Corn (Zea Mays L.) Under Water Table Management written by Ajay Singh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Drainage and water table management are essential for crop production in humid regions. Water table management not only increases crop yield, but also reduces nitrate leaching to water bodies. This study investigated the water and nitrogen use efficiency of corn under two water management conditions and three nitrogen fertilizer levels. The sap flow heat balance method was used to measure the daily water uptake of corn, over an extended period of the growing season. The impacts of climate change on grain corn and biomass yield in eastern Canada under tile drained conditions was also evaluated over a 30 year future period (2040 to 2069). The study was conducted at a field scale in 2008 and 2009 at St. Emmanuel, Quebec. The two water management conditions were: conventional drainage (FD), and controlled drainage with subirrigation (CD-SI). The three nitrogen (N) fertilizer treatments (low, medium, and high N) were applied in a strip across three blocks. The seasonal water balance indicated that the plants in the CD-SI plots had more water than required in the wet periods, despite the system automation, while the FD plots exhibited deficit water conditions. Water could be saved in the wet periods by better regulating water supplied by subirrigation. However, in dry years, the CD-SI system increased yield. The grain corn water use efficiency (WUE) for FD plots was 2.49 and 2.46 kg m-3, in 2008 and 2009, respectively. In these years, the grain WUE for CD-SI plots was 2.43 and 2.26 kg m-3. Water management treatments demonstrated significant difference (p 0.05) in grain yields in 2009, at low and high nitrogen levels. However, at the medium nitrogen level, water management demonstrated no significant effect (p 0.05) on grain yields. The two water treatments had no effect on the above-ground dry biomass yields in both years. Mean nitrogen use efficiency (NUE) of grain corn and biomass varied from 27 to 99 kg kg-1. Highest NUE (99 kg kg-1) was observed under low N (~120 kg N ha-1) and lowest NUE (41 kg kg-1) occurred in the high N (~260 kg N ha-1). This might be due to higher nitrogen losses due to leaching, residual nitrogen in the soil, and more denitrification in high N plots. The rate of plant water uptake measured by the sap flow method, varied from 3.55 to 5.11 mm d-1 from silking to full dent stage of corn growth. These rates were consistent with ETc calculated by the FAO-56 Penman-Monteith method (3.70 to 5.93 mm d-1) for both years. Although, silking is considered as a critical stage for corn growth, water demand was highest at the milk stage (45.63 to 59.80 mm). Transpiration during this stage constituted 10 to12% of the total water requirement of the corn for the season. The silking to full dent stage accounted for approximately 40% of the total water requirement of the crop. The STICS (JavaStics v1.0) crop model was used to examine the impacts of climate change, under the B1 emissions scenario, on corn yield from 2040-2069. The model was calibrated using 2008 field measured data, and then validated using the 2009 data set. Corn grain yield was underestimated by 1.5 to 2.6 Mg ha-1 for the two years of measurement. Total dry biomass was also underestimated by 0.9 to 2.6 Mg ha-1. Simulations for the B1 emissions scenario using synthetic weather data was run under the same crop conditions as in 2008. Tukey's studentized range (HSD) test of corn grain yield indicated that yields at high and low N, and high and medium N were different at the 95% confidence level. Grain and biomass production from 2040-2069 under B1 emissions scenario responded differently (p 0.05) for the three N treatments. However, the Mann-Kendall test showed neither increasing nor decreasing trend (MK-stat - 1.96) at a 95% confidence level. " --
Book Synopsis Modeling Corn Grain Yields in Relation to Soil Erosion Using a Water Budget Approach by : Dennis James Timlin
Download or read book Modeling Corn Grain Yields in Relation to Soil Erosion Using a Water Budget Approach written by Dennis James Timlin and published by . This book was released on 1986 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Method of Economic Analysis Applied to Nitrogen Fertilizer Rate Experiments on Irrigated Corn by : James Leo Paschal
Download or read book A Method of Economic Analysis Applied to Nitrogen Fertilizer Rate Experiments on Irrigated Corn written by James Leo Paschal and published by . This book was released on 1956 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Systems Analysis Approach to Nitrogen Management in the Northern U.S. Corn Belt by : Steven Lyle Oberle
Download or read book A Systems Analysis Approach to Nitrogen Management in the Northern U.S. Corn Belt written by Steven Lyle Oberle and published by . This book was released on 1988 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Supplied by Legume and Grass Residues on Miami Silt Loam in Relation to Grain Response to Commercial Nitrogen by : Lawrence Frederick Marriott
Download or read book Nitrogen Supplied by Legume and Grass Residues on Miami Silt Loam in Relation to Grain Response to Commercial Nitrogen written by Lawrence Frederick Marriott and published by . This book was released on 1955 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
