Author: Brian Stewart AldrichPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 206
Book Description
Modeling the Response of Corn Grain Yield to Applied Nitrogen and Water in a Fine Textured Soil in Wisconsin
Author: Brian Stewart AldrichPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 206
Book Description
University of Wisconsin Agronomy Department, the First 100 Years
Author: University of Wisconsin--Madison. Department of AgronomyPublisher:
ISBN:
Category : Agronomy
Languages : en
Pages : 448
Book Description
Selected Water Resources Abstracts
Author: Response of Corn Yield in Two Crop Rotations to Different Nitrogen Rates and Nitrapyrin
Author: Jose P. QuesadaPublisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
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.
Evaluation of Soil Nitrate Tests for Predicting Corn Nitrogen Response in the North Central Region
Author: Larry Gene BundyPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 38
Book Description
A Survey of Corn Yield Responses to Various Levels of Fertilization on Several Wisconsin Soils
Author: Ron DoerschPublisher:
ISBN:
Category : Fertilizers and manures
Languages : en
Pages : 146
Book Description
Evaluation of the Illinois Soil Nitrogen Test in Wisconsin Cropping Systems
Author: Jeffrey T. OsterhausPublisher:
ISBN:
Category :
Languages : en
Pages : 236
Book Description
Nitrogen Fertilization of Corn and Oats with Solid, Liquid, and Gaseous Fertilizer Forms Applied to Sands and Medium Textured Soils in the Field
Author: Leo Everett OrthAgronomy News
Author: Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 712
Book Description
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.
Author: