Search Results - "Bullock, Donald"

Multidisciplinary Teams: A Necessity for Research in Precision Agriculture Systems by Bullock, D.S, Kitchen, N, Bullock, D.G

“…Precision agriculture may offer great promise for the future, but extensive research is required if that promise is to be realized. The research will not be…”
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Soybean yield as affected by biomass and nitrogen uptake of cereal rye in winter cover crop rotations by Ruffo, M.L, Bullock, D.G, Bollero, G.A

“…The inclusion of cereal rye (Secale cereale L.) as winter cover crop (WCC) following corn (Zea mays L.) has been suggested as a valuable nutrient management…”
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Value of Variable Rate Technology: An Information-Theoretic Approach by Bullock, David S, Ruffo, Matías L, Bullock, Donald G, Bollero, Germán A

“…We present a theoretical treatment of the economics of variable rate technology and its interplay with information. The framework facilitates description of…”
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Spatial variability of the Illinois soil nitrogen test: implications for soil sampling by Ruffo, M.L, Bollero, G.A, Hoeft, R.G, Bullock, D.G

“…The Illinois Soil Nitrogen Test (ISNT) is a recently developed test that has shown promise for corn (Zea mays L.) N fertilization. However, among-field and…”
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Associations between field characteristics and soybean plant performance using canonical correlation analysis by Martín, Nicolás F., Bollero, Germán, Bullock, Donald G.

“…The main objective of this study is to find associations between site characteristics (topographic, and soil physical and chemical properties) and soybean…”
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A Comparative Study of Interpolation Methods for Mapping Soil Properties by Kravchenko, Alexandra, Bullock, Donald G.

“…The choice of an optimal interpolation technique for estimating soil properties at unsampled locations is an important issue in site‐specific management. The…”
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Impacts of Handling and Transport on the Growth and Survival of Balled-and-burlapped Trees by Koeser, Andrew K, Stewart, J. Ryan, Bollero, German A, Bullock, Donald G, Struve, Daniel K

“…Transplanted trees are exposed to numerous stresses from the time of harvest until establishment in the landscape. Although an individual stress factor may be…”
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Joint Multifractal Analysis of Crop Yield and Terrain Slope by Kravchenko, Alexandra N., Bullock, Donald G., Boast, Charles W.

“…Quantifying the spatial variability of crop yields and yield‐affecting factors are important issues in precision agriculture. Topography is frequently one of…”
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Site-specific production functions for variable rate corn nitrogen fertilization by Ruffo, Matías L, Bollero, Germán A, Bullock, David S, Bullock, Donald G

“…Specific recommendations for variable rate nitrogen (VRN) fertilization in corn (Zea mays L.) are required to realize the potential environmental and economic…”
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From Agronomic Research to Farm Management Guidelines: A Primer on the Economics of Information and Precision Technology by Bullock, David S, Bullock, Donald G

“…An ultimate purpose of much agronomic and agricultural economic research is to provide management guidelines (e.g., on application rates of fertilizer, seed,…”
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Improving Map Accuracy of Soil Variables Using Soil Electrical Conductivity as a Covariate by Tarr, Alison B., Moore, Kenneth J., Bullock, Donald G., Dixon, Philip M., Burras, C. Lee

“…Accurate characterization of soil properties across a field can be difficult, especially when compounded with the diverse landscapes used for pastureland…”
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Assessment of genetic variation in hairy vetch using canonical discriminant analysis by YEATER, Kathleen M, BOLLERO, German A, BULLOCK, Donald G, LANE RAYBURN, A, RODRIGUEZ-ZAS, Sandra

“…For improvement of hairy vetch (Vicia villosa Roth) as a winter cover crop, it is necessary to gain insight into the magnitude of variability present in the…”
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Delineation of management zones to improve nitrogen management of wheat by Peralta, Nahuel Raúl, Costa, José Luis, Balzarini, Mónica, Castro Franco, Mauricio, Córdoba, Mariano, Bullock, Donald

“…•The management zone were delineated by using ECa, terrain elevation and soil depth.•The response to N fertilization of wheat is different among management…”
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Flow cytometric analysis for ploidy level differentiation of 45 hairy vetch accessions by Yeater, K.M, Bollero, G.A, Bullock, D.G, Rayburn, A.L

“…Summary Determining the ploidy of plant germplasm is a necessary step in breeding or genetic studies in species. The purpose of this research was to determine…”
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The Changing Roles of the Imagined Primitive in Jimmy Nelson's Photographs by Bullock, Donald

“…The photographer Jimmy Nelson traveled to five different continents taking photographs of thirty-five indigenous cultures from 2010 to 2011. He later compiled…”
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Correlation of Corn and Soybean Grain Yield with Topography and Soil Properties by Kravchenko, Alexandra N., Bullock, Donald G.

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Correlation of Corn and Soybean Grain Yield with Topography and Soil Properties by Kravchenko, Alexandra N., Bullock, Donald G.

“…Analysis of yield variability is an important issue in agricultural research, and topographical land features are among the most important yield‐affecting…”
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Influence of Photoperiod, Photosynthetic Photon Flux, and Temperature on Growth of Canary Island Ivy by Al-Juboory, Karim H, Williams, David J, Skirvin, Robert M, Bullock, Donald G

“…The effects of selected environmental factors [temperature, photosynthetic photon flux ( PPF ), and photoperiod] that contribute to optimal vegetative growth…”
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Multifractal analysis of soil spatial variability by Kravchenko, A.N, Boast, C.W, Bullock, D.G

“…Multifractal formalism was utilized to study variability of different soil properties, including soil-test P and K, organic matter content, pH, Ca and Mg…”
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Assessment of Genetic Variation in Hairy Vetch Using Canonical Discriminant Analysis by Yeater, Kathleen M., Bollero, German A., Bullock, Donald G., Rayburn, A. Lane, Rodriguez-Zas, Sandra

“…For improvement of hairy vetch (Vicia villosa Roth) as a winter cover crop, it is necessary to gain insight into the magnitude of variability present in the…”
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