Digital Commons Network^™

Comparison Of Private And Public Lab Fertilizer Recommendation Impacts On Field Crop Production And Soil Test Results, Megan Baker

All Graduate Theses and Dissertations, Fall 2023 to Present

There are many sources that farmers utilize to determine fertilizer needs for crops such as private and public labs, crop advisors, and fertilizer dealers. In many cases, these sources provide recommendations for a specific crop that can vary greatly, which can lead to large differences in cost. An experiment was established in 2021 with 12 sites across the state of Utah in alfalfa, small grains, and corn to test and compare fertilizer recommendations from five labs. The recommendations tested were from two public labs (Utah State University and the University of Idaho) and three commercial labs located in the Western …

Green And Animal Manure Use In Organic Field Crop Systems, Patrick M. Carr, Michel A. Cavigelli, Heather Darby, Kathleen Delate, Jed O. Eberly, Heather K. Fryer, Greta G. Gramig, Joseph R. Heckman, Ellen B. Mallory, Jennifer R. Reeve, Erin M. Silva, David H. Suchoff, Alex L. Woodley

Plants, Soils, and Climate Faculty Publications

Dual‐use cover/green manure (CGM) crops and animal manure are used to supply nitrogen (N) and phosphorus (P) to organically grown field crops. A comprehensive review of previous research was conducted to identify how CGM crops and animal manure have been used to meet N and P needs of organic field crops, and to identify knowledge gaps to direct future research efforts. Results indicate that: (a) CGM crops are used to provide N to subsequent cash crops in rotations; (b) CGM‐supplied N generally can meet field crop needs in warm, humid regions but is insufficient for organic grain crops grown in …

Evaluating Fertilizer Rate, Crop Rotation And Trap Crops For Effects On Onion Growth And Yield, Soil Health, Thrips Densities And Iris Yellow Spot Virus Incidence, Kristine R. Buckland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Onion production in the United States is seriously affected by the tospovirus Iris Yellow Spot (IYSV), whose symptoms include lenticular-shaped lesions that reduce photosynthesis and bulb yield. Thrips tabacai Lindeman, onion thrips (OT), is the only known vector of the disease and a primary arthropod pest of onion. Frequent insecticide applications, increasing resistance in OT populations to insecticides, high nitrogen (N) fertilization rates and loss of yield to disease and insect pressure threaten sustainable onion production. The objectives of this study were to identify crop management strategies to enhance onion productivity while suppressing OT and IYSV. Three fertilizer rates and …

Utah Fertilizer Guide, D. W. James, K. F. Topper

All Current Publications

The Utah Fertilizer Guide is designed to provide practical answers to routine questions related to soil fertility management. The guide emphasizes laboratory analysis of soil and plant samples as the keystone to optimum fertilizer rates for maximum economic plant yield and quality. The focus of the guide is on soil fertility problems peculiar to the semi-arid and arid soils of Utah.

Optimizing The Physical And Nutritional Environment Of Unleached Root-Zones, Curtis B. Adams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Unleached root-zones represent an environmental ideal by eliminating wasteful leaching of nutrients and water. NASA grows plants in space in unleached root-zones, incorporating polymer-coated fertilizer (PCF) into a ceramic media (Turface or Profile). However, lack of growth productivity in space has led to the need for research to improve the nutritional and physical environment of the root-zone, which is the objective of this research. PCF types are diverse in release characteristics and the effects of temperature and substrate water content have not been well characterized. In spite of widespread use, studies on chemical properties and applied studies to verify soil …

Fertilizer Management For Grass And Grass-Legume Mixtures, Richard T. Koenig, Mark Nelson, James Barnhill, Dean Miner

All Archived Publications

No abstract provided.

Fertilizer No Cure All, Dennis Hinkamp

All Current Publications

No abstract provided.

Give Trees A Chance, Dennis Hinkamp

All Current Publications

No abstract provided.

Transplanting: Think Twice, Dig Once, Dennis Hinkamp

All Current Publications

No abstract provided.

Comprehensive Nutrient Management Planning, Rich Koenig, Kerry Goodrich

All Archived Publications

No abstract provided.

The Effect Of The Water Extracting Requirement Upon The Fertilizer, Yield And Growth Response Of Sweet Corn, Roberto Vazquez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are a number of factors that influence crop yield, two of which are soil moisture and fertility.

Bulletin No. 374 - Fertilizer Reuirements Of Alfalfa Hay In Utah, R. F. Nielson, J. P. Thorne, G. T. Baird

UAES Bulletins

This bulletin is a report of one phase of research in agronomy. What is agronomy? Agronomy is the science of crop production and soil management and includes a scientific study of all phases of soils and soil conservation, irrigation practices, fertilizer usage, crop rotations, plant breeding, selection and management of new crop varieties, weed control, and other practices that lead to increased production of better quality crops.

Bulletin No. 360 - The Effects Of Fertilizer And Moisture On The Growth And Yield Of Sweet Corn, H. B. Peterson, J. C. Ballard

UAES Bulletins

Sweet corn is becoming an important cash crop in many of the irrigated valleys of the Intermountain West. There are a number of factors that influence the yield of this crop, two of which are soil fertility and moisture. A number of investigations have been conducted where the effects of fertilizer have been measured, and the results of these investigations have been highly variable. In general, however, lack of nitrogen has been a major factor limiting yield.

The Yield, Quality, And Nutrient Relationships Of Celery As Affected By Commercial Fertilizer, Rex L. Hurst

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Celery production has become an important factor in the economy of certain areas in Utah. In 1949 over 400 acres were harvested with an average yield of 800 crates per acre, the average return per crate being $1.80. this amounts to over half a million dollars. The crop serves as a valuable cash crop, creates a demand for hand labor, and serves as an important commercial fertilizer.

Bulletin No. 337 - The Vitamin Content Of Peas As Influenced By Maturity, Fertilizers, And Variety, Ethelwyn B. Wilcox, Katharine E. Morrell

UAES Bulletins

No abstract provided.

The Effects Of Fertilizer And Moisture On The Yield Of Sweet Corn, Rex F. Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sweet corn is rapidly becoming an important cash crop in many of the irrigated regions of the intermountain West. The lacome from this crop is relatively small in comparison to that from other major agricultural products; however, sweet corn production has a definite place in the economy of the region.

One of the factors limiting increasing acreage of sweet corn in many areas is low yields. Yields have been increased naterially in recent years with the development of hybrid varieties, superior to the standard varieties previously used. Better cultural practices are improving yields, but much remains to be done in …

The Comparative Value Of Commercial Phosphoric Acid As A Fertilizer, Bruce L. Baird

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The practice of applying fertilizers to the soil by adding the liquid form to the irrigation water is increasing in popularity. There are several advantages maintained for such a method of application. Some of the advantages are:

(A) Ease of application.

(B) No special equipment is required for application.

(C) The fertilizer can be applied at any stage of plant growth without physical disturbance of the plant.

(D) Penetration into the root zone may be greater than the dry fertilizers.

Considerable phosphate fertilizer is used on soils of irrigated regions. If the behavior of liquid phosphoric acid after its incorporation …

Bulletin No. 247 - Effect Of Manure And Of Phosphorus Fertilizer On The Yield And Composition Of Alfalfa Hay, D. W. Pittman

UAES Bulletins

It has frequently been observed by practical stockmen that alfalfa hay produced on poor unproductive land has a much lower feeding value than hay produced on good productive land. Some have also observed that by the use of a supplemental feed rich in phosphorus (such as steamed bone-meal), the feeding value of this poor quality alfalfa hay may be improved, indicating that phosphorus deficiency is at least one cause of its low feeding value.

Fertilizer Studies As Conducted On Muck Soil In Sanpete County, Utah, Lemoyne Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reclamation of muck soil is a new development in the state of Utah. Knowledge concerning the various properties and requirements of the newly-drained area in Sanpete County, Utah, is extremely limited. A need for fundamental information concerning this type of soil was the basis for the establishment of an experimental farm in this region. The fact that most organic soils respond to mineral fertilizers soon after they have been reclaimed was an important reason for starting fertilizer work on this soil as soon as it was possible to do so. This thesis reports some of the fertilizer work being …

Fertilizer Studies As Conducted On The Carbon County Experimental Farm With Special Reference To Treble-Superphosphate, Delos Zobell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1927 an experimental farm was established in Carbon County, Utah. The farm is on a new irrigation tract south of the Price River and about four miles south of Price. The agricultural problems of the Carbon County Experimental Farm and the locality which it serves are distinctly different from those of most of the farming sections in Utah. The soil of this region is of a sandy, silty nature apparently with deflocculated colloids which make it somewhat difficult to manage. There is a low percentage of organic matter in this soil, and because of this and its impervious condition …

A Study Of Different Methods Of Applying Ammonium Sulfate Alone And In A Complete Fertilizer, Clarence Burnham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The beneficial effects obtained from the application of farmyard manure to the soil have long been known in Utah, but now the point has apparently been reached where it becomes evident that the supply of manure is hardly adequate in some sections where intensive cropping is practiced. The use of commercial fertilizers to increase crop yields is a new practice in Utah agriculture as is shown in Table 1 from an estimate made from data kindly furnished by the Columbia Steel Company, Anaconda Copper Mining Company, Ford Motor Company, Armour Packing Company, and Porter Walton Company.

The early sales in …