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Effects Of No-Tillage Fallow As Compared To Conventional Tillage In A Wheat-Fallow System, C. R. Fenster, G. A. Peterson
Effects Of No-Tillage Fallow As Compared To Conventional Tillage In A Wheat-Fallow System, C. R. Fenster, G. A. Peterson
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The benefits of reducing tillage by use of herbicides for weed control emphasizes why research was started to study a fallow system where all tillage was replaced by herbicides. Wheat planting was then the only soil disturbing operation. Objectives of the research were to compare the effects of no-tillage (chemical), stubble-mulch and plow (bare fallow) systems of fallow on: 1. Grain yield. 2. Grain protein. 3. Residue retention. 4. Soil nitrate-nitrogen accumulation. 5. Soil water accumulations during fallow. Data presented are in the form of a progress report. These experiments will continue.
Results Of The Ninth International Winter Wheat Performance Nursery Grown In 1977, S. L. Kuhr, K. D. Wilhelmi, V. A. Johnson, P. J. Mattern, J. W. Schmidt
Results Of The Ninth International Winter Wheat Performance Nursery Grown In 1977, S. L. Kuhr, K. D. Wilhelmi, V. A. Johnson, P. J. Mattern, J. W. Schmidt
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
This is the ninth report of results from an International Winter Wheat Performance Nursery (IWWPN) organized in 1968 by the Nebraska Agricultural Experiment Station and the Science and Education Administration (SEA), U.S. Department of Agriculture, under a contract with the Agency for International Development, U.S. Department of State. The Nursery was designed to (1) test the adaptation and stability of winter wheat cultivars in a range of latitudes, daylengths, fertility conditions, water management regimes, and disease complexes; (2) identify superior winter cultivars to serve as recipient genotypes for high protein and high lysine genes, (3) test the degree of expression …
Danos Causados À Soja Em Diferentes Níveis E Épocas De Infestação, Durante O Crescimento, Maria Helena M. Galileo, Elvis A. Heinrichs
Danos Causados À Soja Em Diferentes Níveis E Épocas De Infestação, Durante O Crescimento, Maria Helena M. Galileo, Elvis A. Heinrichs
Department of Entomology: Faculty Publications
Foram avaliados os danos causados à soja (Glycine max (L.) Merrill) por Edessa meditabunda (Fabricius, 1794), em diferentes níveis e épocas de infestação, usando-se gaiolas de campo, no ano agrícola 1973/74. Os níveis de dois, quatro, seis e dez insetos por gaiola, atuando do florescimento pleno até iniciar-se o enchimento da semente, bem como as infestações desde o florescimento pleno até o final da maturação fisiológica da semente, não reduziram o rendimento, o número de vagens e de sementes, o número de sementes por vagens e o peso médio da semente. Igualmente, a percentagem de sementes danificadas, em diferentes …
Effect Of Lime On No-Tillage Corn Yields, Robert L. Blevins, Lloyd W. Murdock
Effect Of Lime On No-Tillage Corn Yields, Robert L. Blevins, Lloyd W. Murdock
Agronomy Notes
The rapidly growing popularity and adoption of no-tillage systems of corn production have required us to re-evaluate some of our long established soil fertility practices and recommendations. Recent work by researchers at Kentucky and adjacent states show that the soil surface becomes very acid after a few years of continuous no-tillage corn production. This rapid decrease in soil pH is primarily associated with surface application of nitrogen fertilizers. Most lime recommendations and related research information for row crop production are based on plow-down application. Therefore, the effectiveness of surface-applied and unincorporated lime under no-tillage systems becomes a question of concern. …
Blueberry Progress Reports, Amr A. Ismail, John M. Smagula, Stewart Goltz, Paul Hepler, Alan Langille, G R. Benoit, W J. Grant, M G. Zuck, D C. Mcgee, Steven B. Johnson, Simon S. Leach, Howard Y. Forsythe Jr, Gordon E. Ramsdell, Cynthia L. Kahrmann
Blueberry Progress Reports, Amr A. Ismail, John M. Smagula, Stewart Goltz, Paul Hepler, Alan Langille, G R. Benoit, W J. Grant, M G. Zuck, D C. Mcgee, Steven B. Johnson, Simon S. Leach, Howard Y. Forsythe Jr, Gordon E. Ramsdell, Cynthia L. Kahrmann
Wild Blueberry Research Reports
The 1978 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Life Sciences and Agriculture Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:
1. Weed Control in Blueberry Fields
2. Pruning of Blueberries
3. Integrated Management of Blueberry Fields
4. Factors Regulating Rhizome Initiation and Development in the Lowbush Blueberry
5. Effect of Plant-Water Stress on "Lowbush" Blueberry Growth Yield and Quality
6. Blossom Blight of Blueberries
7. Botrytis Blossom Blight of Lowbush …
Relationship Of Weed Control And Soil Ph To No-Tillage Corn Yields, J. J. Kells, C. E. Rieck, Robert L. Blevins, Charles H. Slack
Relationship Of Weed Control And Soil Ph To No-Tillage Corn Yields, J. J. Kells, C. E. Rieck, Robert L. Blevins, Charles H. Slack
Agronomy Notes
Atrazine and simazine are used for selective control of a broad spectrum of weeds in corn. Over 80% of the U.S. corn production is treated with one or the other of these two s-triazine herbicides. In Kentucky they are used annually on over 800,000 acres of corn, including over 200,000 acres of no-tillage corn. When added to the soil these compounds are ultimately degraded to non-phytotoxic compounds. The rate of degradation is dependent upon the physical, chemical, and biological properties of the soil. Although atrazine and simazine are chemically similar, simazine is considered to degrade slightly slower than atrazine after …