Download or read book The Effect of Nitrogen Fertilizer Form and Placement with Inhibitor Inclusion on No till Corn Yields and Plant Nutrient Composition written by John M. Jemison and published by . This book was released on 1986 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of N Fertilizer Placement and Form on No till Corn Yields and Plant Nutrient Composition written by Kyle Edward Keller and published by . This book was released on 1985 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Nitrogen Fertilizer Sources and Placement Methods on the Yield and Leaf Nutrient Concentrations of No till Corn written by Mark W. Osborn and published by . This book was released on 1987 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Tillage Method and Fertilization on the Yield and Elemental Composition of Corn and Soybeans written by William H. Darlington and published by . This book was released on 1983 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Placement Effects of Nitrogen Fertilizer for No till Corn written by Mark John Glady and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Placement of fertilizer nitrogen (N) is a critical issue during the production of corn in no-till systems, but the effects of placement vary with many site-specific factors. On-farm trials offer a new method for evaluating the effectiveness of alternative placements. The objective of this study was to explore the potential of using yield monitors in on-farm trials to compare the effectiveness of dribbled and injected N fertilizer solutions for production of corn in no-till systems. Strip-plot trials were conducted in 16-ha to 24-ha fields to compare dribbled and injected urea-ammonium-nitrate (UAN) solutions applied after crops had emerged in 2002 and 2003. The fertilizer was applied at three rates and two times to help evaluate the effects of placement, and end of season cornstalk nitrate concentrations were measured to help interpret yield response data. The solutions were applied at 56, 112, and 168 kg N ha−1 in six-row strips that were harvested as single swaths with a yield monitoring combine. Placement had statistically significant effects on yields at only one of the six site years studied. No placement effects were observed on cornstalk nitrate concentrations at any of the site years. The effect at this site was probably caused by an unusual lack of rainfall that delayed movement of the dribbled N into the soil. Based on means over the six site years, the benefits of injecting fertilizer were small in comparison to the added time and equipment costs associated with an injected treatment. On-farm trials using treated strips and yield monitors offer an effective way for corn producers within a region to evaluate alternative methods of applying fertilizer under conditions relevant to them.

Download or read book Residual Effects of Fall and Spring applied Nitrogen Fertilizers on Crop Yields in the Southeastern United States written by Robert W. Pearson and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fertilizer broadcast in November or December on widely different soils at seven locations in Alabama, Georgia, and Mississippi during 1955-59 was only 49 percent as effective as nitrogen fertilizer applied the following spring when measured by corn yields. In terms of nitrogen recovered, the relative effectiveness was 62 percent. There were no consistent differences among the five nitrogen sources applied in the fall as measured by corn yields, but nitrogen recovery tended to be lower from urea than from the other sources. Considerable residual effects of spring-applied nitrogen were found over a period of 16 months based on both yield and nitrogen uptake by the crops. Average uptakes of 25 and 34 pounds per acre of additional nitrogen were made by the second and third crops, respectively, from the 200-pound original application. This residual nitrogen produced average yield increases of 1,600 pounds of dry forage and 19 bushels of corn per acre. These results emphasize the economic importance of residual nitrogen and the need for soil test procedures for its estimation.

Download or read book Effect of Urease Inhibitors Added with Nitrogen Fertilizer in No Till Corn Production written by Noora Jan and published by . This book was released on 1993 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Split Applications of Nitrogen on Corn Yield Under Ridge and No till Conditions written by Soil and Water Environmental Enhancement Program (Canada) and published by . This book was released on 1991 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Fertilizer Applications on Yield and Nutrient Composition of the Leaf and Grain of Corn Grown on a Wisner Loam Soil written by Tatsuo Fujimoto and published by . This book was released on 1958 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Residue Density Urease Inhibitors and Nitrogen Fertilizers and Placements on No till Corn Responses and Selected Soil Physical Properties written by Stephen W. Hnetkovsky and published by . This book was released on 1992 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Tillage and Nitrogen Fertilization on Nitrogen Losses from Soils Used for Corn Production written by and published by . This book was released on 1990 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertilizer Management for Corn Planted in Ridge till Or No till Systems written by George William Rehm and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Nitrogen Fertilizers and Urease Inhibitors on No till Corn written by Anton K. Leis and published by . This book was released on 1989 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1996 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Stay N Nitrification Inhibitor Upon Corn Yield and N uptake on Iowa Soils written by Kyle Gustav Jensen and published by . This book was released on 2003 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fertilization is necessary to obtain respectable corn yields. Loss of nitrogen applied to the soil can significantly decrease yields. Suppressing the rate of nitrogen oxidation into a form that can be leached from the root zone may increase N use efficiency. The use of a nitrification inhibitor (nitrapyrin) has been shown to protect crop yield and groundwater quality when leaching conditions exist. Two year studies were conducted to determine the efficacy of reformulated nitrapyrin (Stay-N) when used with urea-ammonium nitrate solutions (liquid N fertilizer) and liquid swine manure upon corn yields. The liquid N studies were conducted in 2000 and 2001 at the Northwest Iowa Research Farm on a Galva soil (Typic Hapludoll) and in Central Iowa at the Burkey Farm on a Nicollet soil (Aquic Hapludoll). Treatments were arranged in split-plot, randomized, complete block design replicated four times. Main plots were Stay-N treatments, with (0.56 kg ai ha−1) or without Stay-N. Sub-plots were seven different rates of nitrogen: 0, 45, 90, 135, 180, 225, and 270 kg ha−1. Stay-N was mixed with the urea-ammonium nitrate solutions and sprayed on the appropriate plots using a small plot fertilizer applicator. The liquid swine manure study was conducted in 2001 and 2002 at the Armstrong Research Farm near Lewis, Iowa on a Colo soil (Cumulic Endoaquoll). The study was arranged in a randomized complete block design replicated four times. Liquid swine manure was applied to the plots to supply 0, 90, and 179 kg ha−1 of nitrogen. Stay-N rates were 0, 0.56, 1.12, and 2.24 kg ai ha−1. Stay-N was mixed with the swine manure before treatments were injected into the soil. Environmental conditions did not favor N losses during the time the studies were conducted.

Download or read book Agronomy Abstracts written by and published by . This book was released on 1991 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).

Download or read book Effects of Nitrification Inhibitors and N Fertilizer Placement on Corn Yield and Soil Nitrogen written by Edward H. Earles and published by . This book was released on 1985 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: