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Articles 1 - 13 of 13

Full-Text Articles in Life Sciences

Resource Conservation Practices: Manure And Tillage Management, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht Dec 2004

Resource Conservation Practices: Manure And Tillage Management, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht

Agriculture and Environment Extension Publications

Adopting best management practices throughout an operation must take into consideration both manure application and tillage management.


Irrigated Alfalfa Vaariety Performance, 1999-2002; Kaysville, Utah, Michael Bouck, Ralph Whitesides, Thomas Griggs, R. F. Sessions, J. S. Murdock, D. A. Chandler Oct 2004

Irrigated Alfalfa Vaariety Performance, 1999-2002; Kaysville, Utah, Michael Bouck, Ralph Whitesides, Thomas Griggs, R. F. Sessions, J. S. Murdock, D. A. Chandler

All Current Publications

This report summarizes alfalfa yields from four harvest years of an irrigated trial at the Utah Agricultural Experiment station research farm at Kaysville, Cavis Co.


Alfalfa Variety Selection Guidelines, Thomas Griggs Sep 2004

Alfalfa Variety Selection Guidelines, Thomas Griggs

All Current Publications

This fact sheet provides guidelines for selecting the right alfalfa variety and includes preliminary site and end-use consideration, variety selection based on plant traits, and seed quality and treatment considerations.


Pb1096 Liming Acid Soils In Tennessee, The University Of Tennessee Agricultural Extension Service Jun 2004

Pb1096 Liming Acid Soils In Tennessee, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

Soil test results indicate that approximately 50 percent of the cropland in Tennessee is too acid for optimum crop production. Because of this, determining the need for lime should be the first step in developing a sound crop fertilization program. Lime neutralizes excess soil acids and increases pH. If not limed as needed, soils continue to become more acid, reducing the soil’s potential to produce healthy plants and profitable yields.


Soybean Aphids In Iowa—2004, Marlin E. Rice, Matthew E. O'Neal, Palle Pedersen Jun 2004

Soybean Aphids In Iowa—2004, Marlin E. Rice, Matthew E. O'Neal, Palle Pedersen

Agriculture and Environment Extension Publications

This publication reviews what is known about the insect and makes management suggestions for 2004. Included is a new economic threshold based on a review of data from field trials and university research. Entomologists from 11 universities used this information to develop a consensus recommendation for the 2004 growing season.


Manure Storage, Process Improvement For Animal Feeding Operations, John Harrison, Dallen Smith Apr 2004

Manure Storage, Process Improvement For Animal Feeding Operations, John Harrison, Dallen Smith

All Current Publications

The objective of this fact sheet is to help producers understand the need for manure storage facilities.


Types Of Manure Storage, John Harrison, Dallen Smith Apr 2004

Types Of Manure Storage, John Harrison, Dallen Smith

All Current Publications

The objective of this fact sheet is to help producers understand the characteristics of different types of manure storage facilities. Factors that might influence the selection of a particular type of manure storage facility are discussed. Manure storage facilities discussed include solid systems, slurry systems, and liquid (lagoon systems).


Manure Storage Selection, John Harrison, Dallen Smith Apr 2004

Manure Storage Selection, John Harrison, Dallen Smith

All Current Publications

The objective of this fact sheet is to help producers understand the factors that might influence the selection of a particular type of manure storage facility. Manure storage facilities covered include solid systems, slurry systems, and liquid (lagoon systems).


Nutrient Concentrations In Manure Storage Facilities, John Harrison, Dallen Smith Apr 2004

Nutrient Concentrations In Manure Storage Facilities, John Harrison, Dallen Smith

All Current Publications

The objective of this fact sheet is to help producers understand the nutrient loss and retention characteristics of different types of manure storage. The concentration of nutrients in manure storage facilities is important for planning land application activities. Nutrient concentration is usually the critical factor in determining the amount of manure to be spread per acre of land. Manure systems similar in type and management may have characteristically similar concentrations of manure nutrients.


Safety In Manure Storage Facilities, John Harrison, Dallen Smith Apr 2004

Safety In Manure Storage Facilities, John Harrison, Dallen Smith

All Current Publications

As livestock operations become larger and numbers of employees more numerous, safety becomes a critical issue in manure storage.


Animal Manure Removal Methods For Manure Storage Facilities, John Harrison, Dallen Smith Apr 2004

Animal Manure Removal Methods For Manure Storage Facilities, John Harrison, Dallen Smith

All Current Publications

A well-designed manure storage facility must also be well managed to prevent environmental concerns from developing. Probably the single most important requirement in operating and maintaining a manure storage facility is to ensure that the facility does not overflow or discharge.


G04-1537 Wind Erosion And Its Control, Drew J. Lyon, John A. Smith Jan 2004

G04-1537 Wind Erosion And Its Control, Drew J. Lyon, John A. Smith

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide discusses how wind erosion occurs and presents methods for reducing wind erosion on land devoted to crop production. Wind erosion is widespread on agricultural land in the Great Plains, particularly in the semi-arid regions. Wind erosion physically removes the most fertile part of the soil (organic matter, clay, and silt) and lowers soil productivity. This loss in productivity increases the costs of producing crops. Blowing soil can reduce seedling survival and growth, depress crop yields, and increase the susceptibility of plants to certain types of stress, including diseases.


The Effect Of An Altered Cytokinin Metabolism On Plant Development And C Ell Aging In Crop Plants, Ian Mcevoy Jan 2004

The Effect Of An Altered Cytokinin Metabolism On Plant Development And C Ell Aging In Crop Plants, Ian Mcevoy

Doctoral

Isopentenyl transferase (IPT) is an enzyme encoded by a bacterial gene that catalyzes the rate-limiting step in cytokinin biosynthesis. Under the control of senescence-associated promoter (pSAG12), isolated from Arabidopsis thaliana, it has been shown to delay senescence in several herbaceous species. Cytokinin synthesis begins at the onset of senescence and is then stopped when senescence ceases. This auto regulatory control of the transgene ensures normal development and morphology of the transformed plant, which may be affected in plants constitutively expressing ipt. In this study, it was investigated if an altered cytokinin metabolism, as a result of transformation by pSAG12: ipt ...