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Dynamics Of Measured And Simulated Dissolved Phosphorus In Runoff From Winter-Applied Dairy Manure, Peter A. Vadas, Melanie N. Stock, Francisco J. Arriaga, Laura Ward Good, Krishnapuram G. Karthikeyan, Zachariah P. Zopp

Plants, Soils, and Climate Faculty Publications

Agricultural P loss from fields is an issue due to water quality degradation. Better information is needed on the P loss in runoff from dairy manure applied in winter and the ability to reliably simulate P loss by computer models. We monitored P in runoff during two winters from chisel-tilled and no-till field plots that had liquid dairy manure applied in December or January. Runoff total P was dominated by nondissolved forms when soils were bare and unfrozen. Runoff from snow-covered, frozen soils had much less sediment and sediment-related P, and much more dissolved P. Transport of manure solids was …

Detecting Soil Macrofauna Using Ground-Penetrating Radar, Melanie N. Stock, David J. Hart, Nicholas J. Balster

Plants, Soils, and Climate Faculty Publications

Fossorial amphibians spend up to ten months belowground, but research into this critical habitat has been impeded by a lack of noninvasive detection methods. Ground-penetrating radar (GPR), however, offers a promising tool because amphibians have theoretically strong electromagnetic (EM) contrasts relative to the soil matrix, and thus potentially high detectability. The objectives of this study were to (1) evaluate GPR by (2) experimentally-inducing three soil thermal regimes that promote stratification in the burrowing depths of 15 Eastern American Toads (Anaxyrus americanus americanus) during the winter of 2011–2012 in Madison, WI, USA. We calculated reflectability and established the unique …

Linking Nutrient Transport To Soil Physical Processes During Freeze/Thaw Events To Promote Wintertime Manure Management, Nutrient Use Efficiency, And Surface Water Quality., Melanie N. Stock, Francisco J. Arriaga, Peter A. Vadas, Laura Ward Good, K. G. Karthikeyan

Plants, Soils, and Climate Faculty Publications

The application of dairy manure to the landscape during winter is a longstanding practice for farms in the Midwestern United States and other temperate regions. Practical motivations behind winter spreading include affordability, availability of time, and the reduced risk of compaction from farm equipment on frozen soils. Wintertime manure applications, however, coincide with environmental conditions that are prone to runoff and accelerate nutrient losses from agricultural fields. Understanding the nutrient dynamics in response to winter-applied manure is especially important to Wisconsin, a leading state in dairy production, where up to 75% of annual runoff volumes occur on frozen and thawing …

Experimental Evidence For Drought Induced Alternative Stable States Of Soil Moisture, David A. Robinson, Scott B. Jones, Inma Lebron, Sabine Reinsch, Maria T. Dominguez, Andrew R. Smith, Davey L. Jones, Miles R. Marshall, Bridget A. Emmett

Plants, Soils, and Climate Faculty Publications

Ecosystems may exhibit alternative stable states (ASS) in response to environmental change. Modelling and observational data broadly support the theory of ASS, however evidence from manipulation experiments supporting this theory is limited. Here, we provide long-term manipulation and observation data supporting the existence of drought induced alternative stable soil moisture states (irreversible soil wetting) in upland Atlantic heath, dominated by Calluna vulgaris (L.) Hull. Manipulated repeated moderate summer drought, and intense natural summer drought both lowered resilience resulting in shifts in soil moisture dynamics. The repeated moderate summer drought decreased winter soil moisture retention by ∼10%. However, intense summer drought, …

Now That Cold Weather Is Approaching, Do You Have Tips For Keeping Bird Feeders Safe?, Terry Messmer

All Archived Publications

No abstract provided.

Whack Your Weeds Before Winter, Dennis Hinkamp

All Archived Publications

No abstract provided.

Can I Prune My Shrubs Or Flowers This Time Of Year?, Jerry Goodspeed

All Archived Publications

No abstract provided.

Get Squashed Next Year, Dennis Hinkamp

All Archived Publications

No abstract provided.

Primrose And Pansies Laugh At Winter, Dennis Hinkamp

All Archived Publications

No abstract provided.

Winter Weed Whacking, Dennis Hinkamp

All Archived Publications

No abstract provided.

It Has Been A Restful Winter For Northern Utah Trees, Dennis Hinkamp

All Archived Publications

No abstract provided.

Prepare Your Yard For Sleep, Dennis Hinkamp

All Archived Publications

No abstract provided.

An Apple Rest Model For Mild Winter Conditions, Jose Ignacio Del Real Laborde

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two areas of research are reported: an experiment on the effects of warm temperature prestratification treatments on seed dormancy and a new chill unit model.

Crabapple seeds (Malus sargentii Rehd.) were allowed to imbibe water and were given warm pretreatments at temperatures of 16, 20, 24 and 28C for periods of 3, 10, 20 or 30 days before cold stratification at 4C for 20, 40, 60, 80 or 100 days. Pretreatments resulted in increased chilling requirements for seedling emergence. A short chilling period (20 days) also altered the leaf area, shoot length, internodal length and root/shoot ratio of the …

Bulletin No. 342 - The Nutritive Content Of The Grazing Sheep's Diet On Summer And Winter Ranges Of Utah, C. Wayne Cook, Lorin E. Harris

UAES Bulletins

Approximately two million sheep graze the native ranges of Utah each year. These animals are on the range most of the year and their food supply must come from range plants as they are normally selected. The nutritive value of range forage is often borderline or deficient in essential nutrients, yet, sufficiently adequate to prevent obvious physiological disorders. These mild deficiencies may affect the productive efficiency of the animal even though no symptoms are apparent.

Bulletin No. 292 - Effects Of Feeding Ewe Lambs During Their First Winter, Alma C. Esplin, Milton A. Madsen, Ralph W. Phillips

UAES Bulletins

It has been observed that many ewes in Utah are somewhat under size when eighteen months old, the usual age for first breeding. It is a common experience for these ewes to produce much smaller lamb and wool crops than the older ewes.

Bulletin No. 277 - A Study Of Utah's Winter Range: Composition Of Forage Plants And Use Of Supplements, A. C. Esplin, J. E. Greaves, L. A. Stoddart

UAES Bulletins

Range forage provides the foundation for the maintenance ration available for most sheep wintered in Utah. The nature and amount of supplemental concentrate or roughage needed with this forage to provide an adequate and efficient ration for sheep naturally depends on the nature and amount of range forage available. Present uncertainty as to the relative merits of the various available supplements originates largely through a lack of definite knowledge as to the composition and feeding value of the various range plants that go to make up the range-forage supply on the particular range in question.

E. J. Maynard

Bulletin No. 254 - Summer And Winter Rations For Fattening Hogs, H. H. Smith, E. J. Maynard

UAES Bulletins

Practically all of the 85,000 hogs on the farms of Utah (as of August 1, 1934) are in the irrigated sections of the state where they fit in well with dairying. Utah, however, is a hog-deficient area and produces about 109,000 hogs less than are slaughtered in the state for its own use. Large amounts of milk by-products such as skim milk, buttermilk, and whey are produced in Utah. Large amounts of alfalfa are also grown in the irrigated sections, thus providing excellent pasture for the growing out and feeding of market hogs. Barley is the principal feeding grain grown …

Bulletin No. 202 - Some Observations On Winter Injury In Utah Peach Orchards, T. H. Abell

UAES Bulletins

During the winter following the freeze, fruit growers in Utah were deeply concerned over the effects of the cold on their orchards, since it was observed that not only were fruit buds killed, but the tissues of the trunks, limbs, and twigs were turning brown. The question at once arose as to whether or not this browning indicated the approaching death of the trees. It was, therefore, considered important to determine, if possible, the nature and extent of the damage, to discover any factor which might have favored or lessened the injury, and finally to offer suggestions to the orchardist …

Circular No. 26 - Storing Vegetables For Winter, M. C. Merrill

UAES Circulars

The storing of vegetables for winter use has come to be important. The joys of having a large variety of choice garden produce available for the table at any time are no longer confined to growing season. Because we are thrifty today and plan for the morrow, we gather our crops in the fall and store them for winter use.

In spite of its importance, comparatively little research work has been done on the problems of storage. AS a result we are still employing many of the same methods that were devised by our forefathers, except in the case of …

Bulletin No. 149 - Breeding For Egg Production, Part Ii: Seasonal Distribution Of Egg Production With Especial Reference To "Winter" Egg Production, E. D. Ball, Byron Alder

UAES Bulletins

In this bulletin will be found a discussion of the seasonal distribution of egg production during first, second, and third, and later years of egg-laying of the same flocks of hens and a comparison of the distribution of production of high-laying and low-laying flocks in the same season, and different seasons as well as high-laying and low-laying individuals of the same flocks. These studies are based on six flocks of White Leghorn hens ranging from nine years to three years old and all descendants of a common flock. The methods of handling, feeding, and other details are discussed in previous …