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Articles 10081 - 10110 of 10980

Full-Text Articles in Earth Sciences

Options For Summer Grazing, David C. Ditsch Oct 2007

Options For Summer Grazing, David C. Ditsch

Kentucky Grazing Conference

Summer is the time during the growing season when shortages of forage most often occur in Kentucky. The summer of 2007 will long be remembered as one the warmest and driest in recent years and cause many livestock producers to evaluate their current forage systems. Most Kentucky pastures are predominately cool-season grasses such as tall fescue, orchardgrass and bluegrass. During the historically hot, dry periods in July and August, these species produce very little growth and can quickly become overgrazed. At this point, some producers have no alternative except to buy feed or begin feeding stored forage intended for winter …

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Does Grazing Method Matter?, Garry D. Lacefield Oct 2007

Does Grazing Method Matter?, Garry D. Lacefield

Kentucky Grazing Conference

Interest in and opportunities for grazing continues to increase not only in Kentucky, but throughout the U.S. In Wisconsin, 12% or approximately 5000 dairymen are now using grazing. In Michigan, over 40% of the dairymen are using grazing for a significant part of their feed requirements. Over 15% of these dairymen are using intensive grazing. Similar numbers exist for Pennsylvania.

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Surviving The 2007 Drought, Roy Burris Oct 2007

Surviving The 2007 Drought, Roy Burris

Kentucky Grazing Conference

Kentucky beef producers could feel the effects of the ’07 drought for a long time. Decisions made now will impact the ’08 and ’09 calf crops. The current hay/feed shortage has stimulated a lot of “panic buying”. Feedstuffs with very low nutritive values are being purchased at an alarming rate. These “feeds” are being purchased at much higher costs than we normally pay for good quality hay. If properly supplemented, they can be used successfully. However, their use to replace the normal hay supply could have disastrous results.

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Recovering From The "Freeze" And "Drought" Of 2007, S. Ray Smith Oct 2007

Recovering From The "Freeze" And "Drought" Of 2007, S. Ray Smith

Kentucky Grazing Conference

As all of you know, 2007 has been a devastating year for forage agriculture in Kentucky. The season started with an abnormally warm 7 weeks during late winter and early spring, which promoted lush vegetative growth. Normally this would have been a “good thing”, but it actually made forage plants more vulnerable to below freezing temperatures. Then the severe freeze occurred, with April 7, 8, and 9 the coldest 3 day period in April in KY history. Pastures were stunted for weeks and first cut hay yields were reduced by 35 to 100%. At this point we were still hopeful …

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Foreword And Kfgc Award Winners [2007], Garry D. Lacefield, Christi L. Forsythe Oct 2007

Foreword And Kfgc Award Winners [2007], Garry D. Lacefield, Christi L. Forsythe

Kentucky Grazing Conference

No abstract provided.

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A Simple Array Platform For Microrna Analysis And Its Application In Mouse Tissues, Xiaoqing Tang, Jozsef Gal, Xun Zhuang, Wang-Xia Wang, Haining Zhu, Guiliang Tang Oct 2007

A Simple Array Platform For Microrna Analysis And Its Application In Mouse Tissues, Xiaoqing Tang, Jozsef Gal, Xun Zhuang, Wang-Xia Wang, Haining Zhu, Guiliang Tang

Plant and Soil Sciences Faculty Publications

MicroRNAs (miRNAs) are a novel class of small noncoding RNAs that regulate gene expression at the post-transcriptional level and play a critical role in many important biological processes. Most miRNAs are conserved between humans and mice, which makes it possible to analyze their expressions with a set of selected array probes. Here, we report a simple array platform that can detect 553 nonredundant miRNAs encompassing the entire set of miRNAs for humans and mice. The platform features carefully selected and designed probes with optimized hybridization parameters. Potential cross-reaction between mature miRNAs and their precursors was investigated. The array platform was …

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How I Produced Nationally Award Winning Alfalfa Hay, Rick Alexander Feb 2007

How I Produced Nationally Award Winning Alfalfa Hay, Rick Alexander

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

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Roundup Ready Alfalfa: Results After One Year On The Market, S. Ray Smith Feb 2007

Roundup Ready Alfalfa: Results After One Year On The Market, S. Ray Smith

Kentucky Alfalfa and Stored Forage Conference

Roundup Ready alfalfa has now been on the market for over a year with close to 30 varieties available or soon to be available across the U.S. This technology provides many new options for alfalfa producers in Kentucky. Several people have asked us which variety is highest yielding and unfortunately we have not been able to provide a good answer. The technology is so new (just approved fall 2005) that few of these varieties have been entered into University yield trials. Companies do have some private data, but they often don’t compare to the varieties you are familiar with. So …

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Cowpea Aphids: Where Did They Come From, Will They Be Back?, Lee H. Townsend Feb 2007

Cowpea Aphids: Where Did They Come From, Will They Be Back?, Lee H. Townsend

Kentucky Alfalfa and Stored Forage Conference

Clearly, something was unusual back in March when large numbers of very dark aphids were found covering stems and tips in Logan, Marion, and Barren counties. They were the cowpea aphid or black legume aphid (Aphis craccivora), a sap-feeding insect known to occur in at least 28 states scattered over the US and into Canada. The cowpea aphid is the only black aphid found infesting alfalfa. Winged or wingless adults are usually shiny black, while the smaller nymphs are dull gray to black. Usually. they are lined along stems or clustered in the expanding leaf tips.

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Hay Heating, Hay Sweat And Spontaneous Combustion, Tom Keene, Doug Overhults Feb 2007

Hay Heating, Hay Sweat And Spontaneous Combustion, Tom Keene, Doug Overhults

Kentucky Alfalfa and Stored Forage Conference

Making hay in central Kentucky can be one of the most trying on farm endeavors a producer can undertake. Our plentiful moisture, rolling topography, and climate make Kentucky ideal for producing high quality forage for either grazing or hay making. However, that same moisture either in the form of rain or high humidity can sometimes make it devilishly hard to make quality hay here in Kentucky.

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Alfalfa For Summer Grazing, John Johns Feb 2007

Alfalfa For Summer Grazing, John Johns

Kentucky Alfalfa and Stored Forage Conference

Alfalfa can make an excellent grazing forage for cattle in the summer as well as at other times of year provided that good grazing management is utilized. Alfalfa can be grazed very close to the ground but should not be grazed continuously. Initial regrowth after grazing comes from nutrient reserves in the root; therefore, a sufficient rest period or regrowth period without grazing must be allowed for these nutrients to be replenished. In summer, this rest period is 30 to 35 days. In adequate rest for root nutrient replenishment is not allowed, the plant will be weakened and stand life …

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Alfalfa Hay For Horses, Robert Coleman Feb 2007

Alfalfa Hay For Horses, Robert Coleman

Kentucky Alfalfa and Stored Forage Conference

Horses are designed to eat forage and quality forage is the basis for the feeding programs of all classes of horse. However, when one considers hay as that basic forage, what criteria are used to describe quality horse hay? In general terms, quality horse hay should supply needed nutrients, be palatable and should be free of anything harmful to the horse.

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Requirements For Successful Alfalfa Establishment, Garry D. Lacefield Feb 2007

Requirements For Successful Alfalfa Establishment, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

Establishing a good stand of alfalfa is expensive and time consuming, but the success rate is high if you give attention to the important factors. The following steps won’t insure success, but will increase greater likelihood.

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How The Alfalfa Plant Grows: Impact On Management, S. Ray Smith Feb 2007

How The Alfalfa Plant Grows: Impact On Management, S. Ray Smith

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is the premier forage crop with high yield, high forage quality, season long productivity, drought tolerance, and extended stand life. Alfalfa requires intensive management to insure that yield, quality, and stand life are maximized. It should be planted on deep, well drained soils and maintained with optimal fertilizer inputs. It also requires adequate rest periods between cutting for hay or grazing. Alfalfa can be prone to significant insect damage and stands may require insecticide treatments. There are many details to successfully managing an alfalfa stand, but if you understand how the plant grows then you will better understand the …

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Alfalfa Information On The Web, Scott Flynn Feb 2007

Alfalfa Information On The Web, Scott Flynn

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

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Foreword And Recipients Of Kentucky Alfalfa Awards [2007], Garry D. Lacefield, Christi L. Forsythe Feb 2007

Foreword And Recipients Of Kentucky Alfalfa Awards [2007], Garry D. Lacefield, Christi L. Forsythe

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

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Effect Of Avail® Polymer Applied To Phosphorus Fertilizers On Dry Matter Production And P Uptake Of Fescue At Princeton, Ky, Lloyd W. Murdock, John James Olson, Gene Olson Jan 2007

Effect Of Avail® Polymer Applied To Phosphorus Fertilizers On Dry Matter Production And P Uptake Of Fescue At Princeton, Ky, Lloyd W. Murdock, John James Olson, Gene Olson

Soil Science News and Views

A study was conducted near Princeton, KY to determine if a polymer (AVAIL®) applied to diammonium phosphate (DAP, 18- 46-0) and mono ammonium phosphate (MAP, 11-52-0) would increase (P) phosphorus use efficiency in fescue production on a low P testing soil, when compared to an untreated phosphate fertilizer. AVAIL® (Specialty Fertilizer Products, Belton, MO) is presently being sold in Kentucky as a product to improve phosphorus fertilizer efficiency.

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Groundwater Quality In Kentucky: Atrazine, Bart Davidson, R. Stephen Fisher Jan 2007

Groundwater Quality In Kentucky: Atrazine, Bart Davidson, R. Stephen Fisher

Information Circular--KGS

Atrazine is an organic herbicide used for selective control of broadleaf and grassy weeds in crops such as corn, soybeans, sorghum, sugarcane, macadamia nuts, pineapples, pine trees, grasslands, and roses. Atrazine does not harm the crops, which can absorb and metabolize the herbicide, thereby removing the toxins. It controls targeted plants by inhibiting photosynthesis (Wilkes University Center for Environmental Quality, 2003). Atrazine is a white, odorless, crystalline powder that dissolves readily in water and does not occur naturally. It is widely used because of its low cost and ability to reduce crop losses from weed interference.

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Kentucky Structural Contours From Digitally Vectorized Geologic Quadrangles, Kentucky Geological Survey Jan 2007

Kentucky Structural Contours From Digitally Vectorized Geologic Quadrangles, Kentucky Geological Survey

Research Data--KGS

This dataset includes geologic stuctural contours of varying datums across Kentucky in shapefile format. These structural contours are compiled from structural contour layers published as a part of the individual Digitally Vectorized Geologic Quadrangles (DVGQ) datasets (by the Kentucky Geologic Survey: https://kgs.uky.edu/kygeode/services/pubs/?pubtype=DVGQ&searchtype=pubcategory). The original structural contours were mapped on the 7.5-minute (1:24,000 scale) series geologic maps published during the Kentucky geologic mapping program (Kentucky Geological Survey - U.S. Geological Survey from 1960 to 1989: https://kgs.uky.edu/kygeode/services/pubs/?pubtype=GQ&searchtype=pubcategory). The digital contours were subsequently digitized as a part of the DVGQ datasets during the geologic digital mapping program at KGS (1996 – 2007). Contoured …

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Generalized Geologic Map For Land-Use Planning: Montgomery County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Montgomery County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Adair County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Adair County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Perry County, Kentucky, Bart Davidson, Steven E. Webb, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Perry County, Kentucky, Bart Davidson, Steven E. Webb, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Lawrence County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Lawrence County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Lee County, Kentucky, Daniel I. Carey, Peter Eclov Jan 2007

Generalized Geologic Map For Land-Use Planning: Lee County, Kentucky, Daniel I. Carey, Peter Eclov

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Monroe County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Monroe County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Morgan County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Morgan County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Magoffin County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Magoffin County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Floyd County, Kentucky, Daniel I. Carey Jan 2007

Generalized Geologic Map For Land-Use Planning: Floyd County, Kentucky, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Harlan County, Kentucky, Daniel I. Carey, Steven E. Webb, Bart Davidson Jan 2007

Generalized Geologic Map For Land-Use Planning: Harlan County, Kentucky, Daniel I. Carey, Steven E. Webb, Bart Davidson

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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Generalized Geologic Map For Land-Use Planning: Breathitt County, Kentucky, Daniel I. Carey, Sally Sloan Jan 2007

Generalized Geologic Map For Land-Use Planning: Breathitt County, Kentucky, Daniel I. Carey, Sally Sloan

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

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