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Articles 1 - 30 of 102
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Methods For Improving Potassium Fertilizer Recommendations For Corn In South Dakota, Andrew J. Ahlersmeyer
Methods For Improving Potassium Fertilizer Recommendations For Corn In South Dakota, Andrew J. Ahlersmeyer
Electronic Theses and Dissertations
Corn (Zea mays L.) is a vital commodity in South Dakota’s agricultural sector. Optimal corn production occurs when there are sufficient mineral nutrients in the soil, especially potassium (K). Applications of K fertilizer are used when soil test K (STK) levels are deficient. Therefore, producers need reliable, thoroughly tested fertilizer recommendations to make profitable decisions and maintain environmental stewardship. South Dakota K fertilizer recommendations have not been updated in nearly 20 years. Simultaneously, changes in corn genetics, management practices, and climate patterns suggest that the critical soil test value (CSTV) for STK may have shifted in that same time frame. …
Determining The Impact Of Corn Source On Nutrient Availability And Pig Performance, And Improving Boar Performance During Heat Stress, Jordan Jansen
Determining The Impact Of Corn Source On Nutrient Availability And Pig Performance, And Improving Boar Performance During Heat Stress, Jordan Jansen
Electronic Theses and Dissertations
The quality and effectiveness of the feedstuffs included in diets of production livestock directly impact yield efficiency and performance characteristics desired by producers. This thesis focuses on the performance and digestibility of corn from different countries in pig diets and how different feed additives can be supplemented to improve boar reproductive performance during heat stress. Corn is the largest energy source in common pig diets. The physical characteristics of corn such as broken kernels, foreign material, and excessive dust are said to negatively impact the quality of the grain for pig diets by being less digestible and a worsened nutrient …
Characterization Of Bacterial Endophytes Isolated From Brassica Carinata And Their Potential Use To Decrease Nutrient Requirements In Crops, Alex Soupir
Electronic Theses and Dissertations
Bacterial endophytes have the capability to enhance plant growth by producing plant growth hormones, solubilizing phosphates, suppressing pathogenic fungi, and reducing plant stress hormones. These capabilities make them desirable limiting the amount of nutrients and pesticides that are applied to crops. Through these assays and isolations, it is possible to identify novel bacterial species. In-vitro testing had shown 9 of the 20 isolates possess the ability to produce indole-3-acetic acid (IAA) with Pantoea agglomerans BC09 producing a concentration of 30.2 ng/μl over 4 days. BC09, Bacillus subilis BC10, and Pantoea sp. BC12 were able to solubilize calcium phosphate, 7 endophytes …
Impacts Of Small Intestinal Enzyme Activity And Varying Corn Grain Processing Types On Feeding Behavior, And Growth Performance Of Finishing Beef Steers, Wyatt Smith
Electronic Theses and Dissertations
The objective of this study was to quantify the differences in activity of jejunal maltase and isomaltase between 2 groups of steers with average dry matter intake (DMI) and differing average daily gain (ADG). Dry matter intake and ADG were measured in crossbred steers (n = 69). Jejunal mucosal samples were collected from 8 steers with the greatest (high) or least (low) ADG and average DMI (± 0.55 standard deviation). Homogenates of jejunal mucosa were incubated with increasing amounts of maltose and isomaltose to determine the disaccharidase kinetics. Neither the Km of isomaltase (P = 0.15) or maltase (P = …
Performance Of The Producer Accumulator In Corn And Soybean Commodity Markets, Chad Te Slaa
Performance Of The Producer Accumulator In Corn And Soybean Commodity Markets, Chad Te Slaa
Electronic Theses and Dissertations
This research quantifies risk reduction and performance of the producer accumulator contract in corn and soybean markets. To quantify performance, we use three alternative theoretical pricing models to estimate historical producer accumulator contract specifications in corn and soybean markets. We then compare the performance of the producer accumulator to eight alternative agricultural marketing strategy portfolios that are also used in new generation grain contracts. The performance measures we compare are: average bushel price that would be received by the producer, daily portfolio risk, and the Sharpe ratio. The period we examine performance was between 2008 and 2017. We investigate performance …
Evaluation Of Flame Weeding In Southeastern South Dakota, Benjamin William Arlt
Evaluation Of Flame Weeding In Southeastern South Dakota, Benjamin William Arlt
Electronic Theses and Dissertations
Weed management is the main yield-limiting factor in production of organic crops. Currently, organic producers have limited resources available for in-row weed management. Flame weeding has been recognized for its potential as one part of an integrated approach at weed management in organic systems. Flame weeding uses propane fueled torches to heat plant tissue and denature proteins, thus injuring or destroying the affected tissue. When properly timed, flame weeding can effectively be used for weed control in corn and soybean fields. Corn and soybean have both shown tolerances to flame weeding and minimal yield loss with well-managed and timed flame …
Study Of The Effect Of Feeding Highly Digestible Corn Based Calf Starter On The Growth Performance Of Calves, Shruti Srivastava
Study Of The Effect Of Feeding Highly Digestible Corn Based Calf Starter On The Growth Performance Of Calves, Shruti Srivastava
Electronic Theses and Dissertations
New corn hybrids have been developed by Masters Choice (MC) that vary in energy density and starch digestibility. These MC hybrids have lower starch densities due to an altered starch structure, which allows for greater ruminal and intestinal starch digestion. The altered starch structure of these new hybrids results in reduced feed manufacturing costs (i.e., grinding). Thirty (30) 1 to 3 d old (40.6 ± 1.72 kg) Holstein heifer calves were randomly assigned to 1 of 2 calf starters to measure growth performance of Holstein heifer calves through 8 weeks of age. Treatments were: 1) Hard starch (HS) corn calf …
Evaluation Of Tillage, Crop Rotation, And Cover Crop Impacts On Corn Nitrogen Requirements In Southeastern South Dakota, Sara Louise Berg
Evaluation Of Tillage, Crop Rotation, And Cover Crop Impacts On Corn Nitrogen Requirements In Southeastern South Dakota, Sara Louise Berg
Electronic Theses and Dissertations
Nitrogen (N) is a vital factor of corn (Zea mays) production. Previous work in South Dakota has shown that there is uncertainty as to whether nitrogen requirements are the same for corn raised under no-till (NT) versus conventional till (CT) production systems. The objective of this study was to evaluate whether N requirements continue to be greater under long-term NT versus CT production systems in southeastern South Dakota, while also considering effects from cover crops and crop rotation. This was a two year study conducted at the SDSU Southeast Research Farm near Beresford, SD; it was superimposed on a long-term …
Techno-Economic Feasibility Of Distributed Torrefaction Systems Using Corn Stover Feedstock, Evan Almberg
Techno-Economic Feasibility Of Distributed Torrefaction Systems Using Corn Stover Feedstock, Evan Almberg
Electronic Theses and Dissertations
This study investigated the economic feasibility of distributed torrefaction biorefining systems using corn stover feedstock to generate value-‐added products. Distributed torrefaction systems have the potential to operate on private agricultural enterprises as well as community-‐scale processing facilities, similar in scale to local grain elevators. Distributed systems will thus, reduce the need for large capital investments for dedicated commercial biorefining facilities and decrease logistical concerns for harvesting and marketing the torrefied corn stover products. In this study, a techno-‐economic model was developed to analyze the economics of harvesting techniques, logistics, processing requirements, and end product utilization. Results were determined using baseline …
Ruminal Degradabilities And Intestinal Digestibilities Of Canola Meals And The Production Response Of Cows Fed Canola Meal With Varying Concentration Of Starch Sources, Nadeesha Kumari Jayasinghe
Ruminal Degradabilities And Intestinal Digestibilities Of Canola Meals And The Production Response Of Cows Fed Canola Meal With Varying Concentration Of Starch Sources, Nadeesha Kumari Jayasinghe
Electronic Theses and Dissertations
Canola meal (CM) is a by-product in the manufacturing process of canola oil which can be performed with or without using solvent extraction. It is a protein supplement which has grown its importance in dairy cattle feeding competing with soybean meal (SBM). However, final quality of the feed depends on the oil extraction process and the production conditions used by the individual processing plant. Two studies were conducted to investigate: 1) the variability among the CM produced in different processing plants and 2) the best starch source or the most suitable proportion of corn and barley to be fed with …
Preference Of White-Tailed Deer For Corn Hybrids And Agricultural Husbandry Practices During The Growing Season, Joshua A. Delger, Kevin L. Monteith, Lowell E. Schmitz, Jonathan A. Jenks
Preference Of White-Tailed Deer For Corn Hybrids And Agricultural Husbandry Practices During The Growing Season, Joshua A. Delger, Kevin L. Monteith, Lowell E. Schmitz, Jonathan A. Jenks
Natural Resource Management Faculty Publications
Damage to field corn (Zea mays) by white-tailed deer (Odocoileus virginianus) can be substantial, resulting in millions of dollars lost annually. Numerous methods exist to minimize deer depredation, but all have met with varying degrees of success. Currently, little information is available on preference of white-tailed deer for corn hybrids during the growing season and how that preference might affect depredation patterns. We used adult female white-tailed deer in captivity to study the effect of herbicide treatments on deer-use (treatment versus no treatment) of corn in 2005 and to document preference among specific corn hybrids in …
2010 Precision Planted Corn Performance Trials, R. G. Hall, K. K. Kirby, S. M. Hawks
2010 Precision Planted Corn Performance Trials, R. G. Hall, K. K. Kirby, S. M. Hawks
Agricultural Experiment Station Circulars
This publication reports the results of the 2010 South Dakota corn hybrid performance trials for glyphosate-resistant hybrids. Information includes both the most recent two-year and one-year grain yields in bushels per acre and one-year bushel weight in pounds, along with grain moisture at harvest, lodging, and final stand in percentages. These performance trials are conducted by the South Dakota Crop Performance Testing program at South Dakota State University. Corn performance trial tables are listed on the inside front cover. Environmental data is listed in tables A and B, indices of brand/hybrid entries to performance table number are listed in table …
2009 Precision Planted Corn Performance Trials, R. G. Hall, K. K. Kirby, J. A. Hall
2009 Precision Planted Corn Performance Trials, R. G. Hall, K. K. Kirby, J. A. Hall
Agricultural Experiment Station Circulars
This publication reports the results of the 2009 South Dakota corn hybrid performance trials for glyphosate-resistant hybrids. Information includes both the most recent 2-year and 1-year grain yields in bushels per acre and 1-year bushel weight, grain moisture at harvest, lodging percentage, and final stand percentages. These performance trials are conducted by the South Dakota Crop Performance Testing program at South Dakota State University. Corn performance trial tables are listed on the inside front cover. Environmental data is listed in tables A and B, indices of brand/hybrid entries to performance table number are listed in table C, table D has …
Moldy Corn For Beef Cattle, Cody Wright, Ben Holland, Russ Daly, Larry Osborne
Moldy Corn For Beef Cattle, Cody Wright, Ben Holland, Russ Daly, Larry Osborne
SDSU Extension Extra Archives
Certain weather conditions and/or physical injury to the plant may result in the development of mold in various parts of the plant. Accumula¬tion of mold and production of mycotoxins may present a risk for livestock producers. However, after examination and analysis, moldy feeds may be able to be used in beef cattle diets—with little or no risk to the health of the animal.
2008 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, J. A. Hall
2008 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, J. A. Hall
Agricultural Experiment Station Circulars
This publication reports the results of the 2008 South Dakota corn hybrid performance trials for both glyphosate-resistant hybrids and non-glyphosate-resistant hybrids. Information includes both the most recent two-year and one-year grain yields in bushels per acre; and one-year bushel weight, grain moisture at harvest, lodging percentage, and final stand percentages. These performance trials are conducted by the South Dakota Crop Performance Testing program at South Dakota State University. Corn performance trial tables are listed on the inside front cover. Environmental data is listed in tables A and B, indices of brand/ hybrid entries to performance table number are listed in …
Sulfur In Distillers Grains For Dairy Cattle, D. Schingoethe, A. Garcia, K. Kalscheur, A. Hippen
Sulfur In Distillers Grains For Dairy Cattle, D. Schingoethe, A. Garcia, K. Kalscheur, A. Hippen
SDSU Extension Extra Archives
Sulfur is an essential element needed by animals for many functions. About 0.15% of body weight is sulfur. It is found in the amino acids methionine, cysteine, cystine, homocysteine, and taurine; in chondroitin sulfate of cartilage; and in the B-vitamins thiamin and biotin. Methionine, thiamin, and biotin cannot be synthesized in cattle tissues, so they must be supplied in the diet or synthesized by ruminal microbes. The sulfur content of most feed sources reflects the sulfur amino acid content of the proteins in the feed. See table 1 for example sulfur concentrations for various feed ingredients.
2007 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, J. A. Hall
2007 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, J. A. Hall
Agricultural Experiment Station Circulars
This publication reports the performance of entries in the 2007 South Dakota corn hybrid performance trials for both non-Roundup-Ready™ and Roundup-ReadyTM hybrids. Information includes the most recent two-year and one-year grain yield averages, in bushels per acre, and one-year averages for bushel weight, grain moisture at harvest, percent stand at harvest, and stalk lodging percentages. These performance trials are conducted by the South Dakota Crop Performance Testing program at South Dakota State University. Corn performance trial tables are listed on the inside front cover. Environmental data is listed in tables A and B, indices of brand/hybrid entries to performance table …
Coping With High-Priced Corn, Cody Wright, Ken Olson, Julie Walker, Erik Loe, Alvaro Garcia
Coping With High-Priced Corn, Cody Wright, Ken Olson, Julie Walker, Erik Loe, Alvaro Garcia
SDSU Extension Extra Archives
Feed costs represent 50 to 70% of livestock production expenses and are a critical component of livestock profitability. In the Upper Midwest and Upper Great Plains, corn grain is a primary source of energy in livestock diets. Consequently, as the price of corn escalates, so does the cost of feeding livestock. But cost isn’t all: you also must address dietary and management considerations when coping with increased corn prices.
2006 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
2006 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
Agricultural Experiment Station Circulars
Performance of entries in the 2006 South Dakota corn hybrid performance trials for both non-Roundup-Ready and RoundupReady ™ hybrids is reported. Information includes both the most recent 2-year and 1-year grain yields in bushels per acre and 1-year bushel weight, grain moisture at harvest, percent stand at harvest, and stalk lodge percentages. These performance trials are conducted by the South Dakota Crop Performance Testing ( CPT ) program at South Dakota State University.
Feeding Soy Hulls And Dried Distillers Grain With Solubles To Sheep, Jeff Held
Feeding Soy Hulls And Dried Distillers Grain With Solubles To Sheep, Jeff Held
SDSU Extension Extra Archives
Co-products from corn and soybean processing industries can be excellent sources of nutrients for livestock. With the growth of ethanol production from corn and increasing number of soybeans processed in the Upper Midwest, livestock producers have many nutrient-dense coproduct feed resources readily available. In the Upper Midwest distillers dried grain with solubles (DDGS) derived from ethanol production and soybean hulls (SH) from soybean processing have created the greatest interest to sheep producers.
Conducting An On-Farm Research Trial In Corn A Paired-Treatment Experiment With Results Analyzed By Ms Excel Using The Anova: Two-Factor Without Replication Option, Robert G. Hall
SDSU Extension Extra Archives
This guide will discuss and illustrate a possible scenario for conducting an effective on-farm research trial using paired-treatments in corn. Possible treatments comparisons might include: current vs. new hybrid, no starter vs. starter fertilizer, soil-incorporated vs. post-emergence applications, and before vs. after treatments. Treatments do not have to be applied at the same time or stage; one treatment might be applied early while the second is applied late.
Effect Of Supplementing Distillers Grain Or Corn On Performance Of Cows Grazing Spring Pasture During The Breeding Season, Tyler A. Melroe, Richard J. Pruitt, George A. Perry, Jeffrey A. Clapper, Heather A. Werner
Effect Of Supplementing Distillers Grain Or Corn On Performance Of Cows Grazing Spring Pasture During The Breeding Season, Tyler A. Melroe, Richard J. Pruitt, George A. Perry, Jeffrey A. Clapper, Heather A. Werner
South Dakota Beef Report, 2006
In a 2 yr study 180 lactating cows (2 to 10 yr old) grazing pastures dominated by smooth bromegrass and Kentucky bluegrass near Brookings, SD received 3 supplemental treatments for 48 d beginning in mid May. Cows received 4.6 lb DM of dried distillers grains with solubles (DDGS), 4.3 lb corn DM, or no supplement daily, starting approximately 14 d prior to the start of the breeding season. Cows were bled weekly for 5 wk beginning 1 wk prior to the beginning of the treatment period. Serum was analyzed for progesterone concentration to determine the onset of cyclicity. While supplemented …
2005 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, G. Piechowski
2005 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby, G. Piechowski
Agricultural Experiment Station Circulars
T his publication reports the performance of entries in the 2005 South Dakota corn hybrid performance trials for both nonRoundup- Ready™ and Roundup-Ready™ hybrids. Information includes both the most recent 2-year and 1-year grain yields in bushels per acre (bu/a); and 1-year bushel weight, grain moisture at harvest, percent stand at harvest, and stalk lodge percentages. These performance trials are conducted by the South Dakota Crop Performance Testing ( CPT ) program at South Dakota State University.
2004 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
2004 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
Agricultural Experiment Station Circulars
This publication reports the performance of entries in the 2004 South Dakota corn hybrid performance trials for both non-Roundup-Ready™ and Roundup-Ready™ hybrids. Information includes both the most recent 2-year and 1-year grain yields in bushels per acre (bu/ac); and 1-year bushel weight, moisture percentages of shelled corn at harvest, acre harvest population, and stalk lodge percentages. These performance trials are conducted by the South Dakota Crop Performance Testing ( CPT ) program at South Dakota State University.
2003 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
2003 Precision Planted Performance Trials: Corn, R. G. Hall, K. K. Kirby
Agricultural Experiment Station Circulars
This publication reports the performance of entries in the 2003 South Dakota corn hybrid performance trials for both non-Roundup-Ready and Roundup-Ready hybrids. Information includes both the most recent 2-year and 1-year grain yields in bushels per acre; and 1-year bushel weight, moisture percentages of shelled corn at harvest, acre harvest population, and stalk lodging percentages. These performance trials are conducted by the South Dakota Crop Performance Testing ( CPT) program at South Dakota State University.
2002 Crop Performance Trials: Corn, R. G. Hall, K. K. Kirby
2002 Crop Performance Trials: Corn, R. G. Hall, K. K. Kirby
Agricultural Experiment Station Circulars
No abstract provided.
2001 Crop Performance Trials: Corn, R. G. Hall, K. K. Kirby
2001 Crop Performance Trials: Corn, R. G. Hall, K. K. Kirby
Agricultural Experiment Station Circulars
This publication reports the performance of entries in the2001 South Dakota corn hybrid performance trials and includes both conventional (non-Roundup-Ready) and Roundup-Ready hybrids. Bushels per acre (bu/a) are given for both 2000-01 and 2001 grain yields; and test weight, moisture percentages of shelled corn at harvest, and stalk lodge percentages are presented for 2001. These performance trials are conducted by the South Dakota Crop Performance Testing (CPT) program at South Dakota State University.
Central South Dakota Corn And Soybean Basis Comparison: 1990-2000, Alan May
Central South Dakota Corn And Soybean Basis Comparison: 1990-2000, Alan May
SDSU Extension Extra Archives
Basis levels for corn and soybeans in central South Dakota have changed during the decade of the 1990’s. The central region includes the counties of Aurora, Beadle, Brule, Buffalo, Hand, Hughes, Hyde, Jerauld, and Sully. The following charts contain the average weekly basis for corn and soybeans for 1990-94 and for 1995-2000. A third chart contains the production history of corn, soybeans, and wheat in central South Dakota for the same time period.
East Central South Dakota Corn And Soybean Basis Comparison: 1990-2001, Alan May
East Central South Dakota Corn And Soybean Basis Comparison: 1990-2001, Alan May
SDSU Extension Extra Archives
Basis levels for corn and soybeans in east central South Dakota have changed during the decade of the 1990’s. The east central region includes the counties of Brookings, Davison, Hanson, Kingsbury, Lake, McCook, Miner, Minnehaha, and Sanborn. The following charts contain the average weekly basis for corn and soybeans for 1990-94 and for 1995-2000. A third chart contains the production history of corn, soybeans, and wheat in east central South Dakota for the same time period.
Southeast South Dakota Corn And Soybean Basis Comparison: 1990-2004, Alan May
Southeast South Dakota Corn And Soybean Basis Comparison: 1990-2004, Alan May
SDSU Extension Extra Archives
Basis levels for corn and soybeans in southeast South Dakota have changed during the decade of the 1990’s. The southeast region includes the counties of Bon Homme, Charles Mix, Clay, Douglas, Hutchinson, Lincoln, Turner, Union, and Yankton. The following charts contain the average weekly basis for corn and soybeans for 1990-94 and for 1995-2000. A third chart contains the production history of corn, soybeans, and wheat in southeast South Dakota for the same time period.