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Kansas Agricultural Experiment Station Research Reports

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2012 National Turfgrass Evaluation Program Tall Fescue Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle Jan 2018

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Megan M. Kennelly, Jason J. Griffin, Jared A. Hoyle

Kansas Agricultural Experiment Station Research Reports

Research efforts to improve cultivar quality include selecting for disease resistance and stress tolerance as well as finer leaf texture, a rich green color, and better sward density. Several cultivars included in the 2012 National Turfgrass Evaluation Program Tall Fescue Test performed well and showed good brown patch resistance in south central Kansas during the 2017 growing season.


Field Station Weather Reports, E. A. Adee, M. C. Knapp Jan 2018

Field Station Weather Reports, E. A. Adee, M. C. Knapp

Kansas Agricultural Experiment Station Research Reports

Summary of weather for research locations for the 2018 Field report.

The research program at the Kansas State University East Central Kansas Experiment Field is designed to keep area crop producers abreast of technological advances in agronomic agriculture. Specific objectives are to (1) identify top performing varieties and hybrids of wheat, corn, soybean, and grain sorghum; (2) establish the amount of tillage and crop residue cover needed for optimum crop production; (3) evaluate weed and disease control practices using chemical, no chemical, and combination methods; and (4) test fertilizer rates, timing, and application methods for agronomic proficiency and environmental stewardship ...


Effect Of Late Nitrogen Applications On Grain Filling In Corn, J. A. Fernandez, I. A. Ciampitti Jan 2018

Effect Of Late Nitrogen Applications On Grain Filling In Corn, J. A. Fernandez, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

In order to evaluate the effect of nitrogen (N) with late-season fertilizer applications in corn, grain yield and grain filling parameters were evaluated for three genotypes under three N levels. Hybrids with different release years (3394, 1990s; P1151, 2000s; and P1197, 2016) and contrasting N application scenarios (zero-N, N at flowering, and N two weeks after flowering) were evaluated in two studies (dryland and irrigated) at the Ashland Bottoms Research Farm, Manhattan, KS, 2017 season. Results showed that under N stress conditions, the absence of N fertilization in corn significantly reduced yields, by affecting both grain number (GN) and grain ...


Effect Of Fungicides On Southern Rust Of Corn, E. A. Adee, S. Duncan Jan 2018

Effect Of Fungicides On Southern Rust Of Corn, E. A. Adee, S. Duncan

Kansas Agricultural Experiment Station Research Reports

The decision to apply fungicides to corn is not an easy decision in Kansas, especially when grain prices are low. Numerous factors determine what diseases are present, and whether the plants will be defoliated enough to reduce yield. Correctly identifying the disease, knowing what environmental conditions favor the development of an epidemic, and knowing the hybrid’s resistance to the diseases can be known before making the decision. However, knowing if the conditions will be favorable for the spread of the disease up the plant is very unpredictable. A situation like a ‘perfect storm’ for foliar diseases defoliating corn occurred ...


High Yielding Soybean: Genetic Gain And Nitrogen Limitation, O. A. Ortez, F. Salvagiotti, J. M. Enrico, E. A. Adee, I. A. Ciampitti Jan 2018

High Yielding Soybean: Genetic Gain And Nitrogen Limitation, O. A. Ortez, F. Salvagiotti, J. M. Enrico, E. A. Adee, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

The United States and Argentina account for more than 50% of the global soybean production. Closing yield gaps (actual on-farm yield vs. genetic yield potential) would require an improvement in the use of the available resources. Overall, 50-60% of soybean nitrogen (N) demand is usually met by the biological nitrogen fixation (BNF) process. A scientific knowledge gap still exists related to the ability of the BNF process to satisfy soybean N demand at varying yield levels. The overall objective of this project is to study the contribution of N via utilization of varying N strategies under historical and modern soybean ...


Soybean Evaluation Of Inoculation: A Three-Year Summary, M. A. Secchi, T. M. Albuquerque, O. A. Ortez, G. I. Carmona, J. Kimball, E. A. Adee, I. A. Ciampitti Jan 2018

Soybean Evaluation Of Inoculation: A Three-Year Summary, M. A. Secchi, T. M. Albuquerque, O. A. Ortez, G. I. Carmona, J. Kimball, E. A. Adee, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

The relationships between soybean (Glycine max) seed yield and response to nitrogen (N) fertilization have received considerable coverage in scientific literature. This project aims to quantify the response to inoculation for soybean in a field without previous history of this crop (20 years). To address this objective, field studies were conducted during the 2015, 2016, and 2017 growing seasons at the East Central Experiment Field, Ottawa, KS. The treatments consisted of five different N-management approaches: non-inoculated (NI), inoculation at the recommended commercial rate (I1), a double rate of inoculation (I2), a triple rate of inoculation (I3), and non-inoculated but fertilized ...


Feet And Leg Traits Are Moderately To Lowly Heritable In Red Angus Cattle, L. K. Giess, B. R. Jensen, R. L. Weaber, J. M. Bormann, W. A. Fiske Jan 2018

Feet And Leg Traits Are Moderately To Lowly Heritable In Red Angus Cattle, L. K. Giess, B. R. Jensen, R. L. Weaber, J. M. Bormann, W. A. Fiske

Kansas Agricultural Experiment Station Research Reports

Objective: The goals of this study were to identify feet and leg indicator traits to be used in beef breed genetic evaluations and develop a scoring method that can be easily adopted by cattle producers.

Description: Data were analyzed on 1,885 Red Angus cattle, and after editing, 1,720 records were used for analysis. Feet and leg phenotypes were obtained from August 2015 through September 2017 for 14 traits shown in the following table. Trained livestock evaluators collected measurements using an electronic tablet with offline data storage capabilities. Heritability estimates for all 14 traits were calculated from two different ...


Consumer Juiciness Acceptability Supports The Beef Marbling Insurance Theory, L. N. Drey, K. R. Vierck, L. L. Prill, J. M. Gonzalez, T. A. Houser, E. A. Boyle, J. L. Vipham, T. G. O'Quinn Jan 2018

Consumer Juiciness Acceptability Supports The Beef Marbling Insurance Theory, L. N. Drey, K. R. Vierck, L. L. Prill, J. M. Gonzalez, T. A. Houser, E. A. Boyle, J. L. Vipham, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine whether increased marbling reduces the negative impact that increased degree of doneness has on consumer palatability scores.

Study Description: Beef strip loins were collected to represent five quality treatments [Prime, Top choice, Low choice, Select, and Select enhanced; n = 12 pairs/quality grade] and fabricated to 1-in steaks. Steaks were cooked to one of six degrees of doneness: very-rare (130°F), rare (140°F), medium-rare (145°F), medium (160°F), well-done (170°F), or very well-done (180°F). Consumers (n = 360) rated each steak for juiciness, tenderness, flavor, and overall liking ...


Relationship Of Myofibrillar Fragmentation Index To Warner-Bratzler Shear Force And Palatability Tenderness Of Longissimus Lumborum And Semitendinosus Steaks, L. L. Prill, K. J. Phelps, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn Jan 2018

Relationship Of Myofibrillar Fragmentation Index To Warner-Bratzler Shear Force And Palatability Tenderness Of Longissimus Lumborum And Semitendinosus Steaks, L. L. Prill, K. J. Phelps, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the relationship between the myofibrillar fragmentation index, Warner-Bratzler shear force and sensory traits of longissimus lumborum (strip loin), and the semitendinosus (eye of round) steaks.

Study Description: Forty beef strip loins and 40 eye of rounds were collected, divided into anatomical location, and cut into steaks. Steaks used for Warner-Bratzler shear force and sensory panel review were cooked to 160°F. For Warner-Bratzler, six 1-in cores were sheared with a Warner-Bratzler shear head. Sensory steaks were served to panelists trained according to American Meat Science Association guidelines for sensory evaluation. Procedures ...


Marbling Texture Has No Effect On Collagen Characteristics, B. A. Olson, K. R. Vierck, J. M. Gonzalez, J. A. Noel, T. A. Houser, E. A. Boyle, T. G. O'Quinn Jan 2018

Marbling Texture Has No Effect On Collagen Characteristics, B. A. Olson, K. R. Vierck, J. M. Gonzalez, J. A. Noel, T. A. Houser, E. A. Boyle, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the effects of marbling texture on collagen traits and adipocyte cross-sectional area.

Study Description: Beef strip loins (n = 117) from three U.S. Department of Agriculture quality grades (Top Choice, Low Choice, and Select) with three marbling textures (fine, medium, and coarse) were selected using visual appraisal. Strip loins were taken to the Kansas State University meat laboratory, Manhattan, KS, fabricated into 1-in steaks, vacuum packaged, and aged for 21 days at 40°F. Following aging, steaks were analyzed for collagen and adipocyte staining, imaging, and peak thermal transition temperature.

The ...


The Livestock And Meat Industry Council, Inc. Jan 2018

The Livestock And Meat Industry Council, Inc.

Kansas Agricultural Experiment Station Research Reports

The Livestock and Meat Industry Council, Inc. (LMIC) is a non-profit charitable organization supporting animal agriculture research, teaching, and education. This is accomplished through the support of individuals and businesses that make LMIC a part of their charitable giving.


Gonadotropin-Releasing Hormone Increased Pregnancy In Suckled Beef Cows Not Detected In Estrus And Subjected To A Split-Time Artificial Insemination Program, S. L. Hill, D. M. Grieger, K C. Olson, J. R. Jaeger, K. R. Harmoney, C. R. Dahlen, M. R. Crosswhite, N. Negrin Pereira, S. R. Underdahl, B. W. Neville, J. Ahola, M. C. Fischer, G E. Seidel, J. Stevenson Jan 2018

Gonadotropin-Releasing Hormone Increased Pregnancy In Suckled Beef Cows Not Detected In Estrus And Subjected To A Split-Time Artificial Insemination Program, S. L. Hill, D. M. Grieger, K C. Olson, J. R. Jaeger, K. R. Harmoney, C. R. Dahlen, M. R. Crosswhite, N. Negrin Pereira, S. R. Underdahl, B. W. Neville, J. Ahola, M. C. Fischer, G E. Seidel, J. Stevenson

Kansas Agricultural Experiment Station Research Reports

Estrus-synchronization programs allow insemination of all females in a herd at one fixed time on the first day of the breeding season. Inseminating cows after they have expressed estrus increases pregnancy rate (PR) compared with cows that do not display estrus in a timed AI (TAI) program. Identification of estrus status can be facilitated by using estrus-detection patches. Varying AI timing according to estrus status has increased PR in some previous studies. Reducing the number of injections in a TAI program decreases labor requirements, stress on cows, and overall cost of the program. Previous studies have demonstrated that PR is ...


Using Modified Intensive Early Stocking For Grazing Replacement Heifers, K. R. Harmoney, J. R. Jaeger Jan 2018

Using Modified Intensive Early Stocking For Grazing Replacement Heifers, K. R. Harmoney, J. R. Jaeger

Kansas Agricultural Experiment Station Research Reports

Even though Kansas native rangelands often have steep slopes or shallow soils not conducive to many other uses other than livestock grazing, native rangeland and peren­nial grassland acres in Kansas have been declining. Cropland acreage over this same time frame has increased, and so has rangeland fragmentation into small ranchettes and urbanization. Producers may be looking to increase production efficiency on a shrink­ing forage land base. The use of intensive early stocking (IES) is one the most efficient stocking strategies to produce beef on rangeland acres. The IES strategy has been widely used in eastern Kansas and is ...


Can Modified Intensive Early Stocking Be Used In Cow/Calf Production?, K. R. Harmoney, J. R. Jaeger Jan 2018

Can Modified Intensive Early Stocking Be Used In Cow/Calf Production?, K. R. Harmoney, J. R. Jaeger

Kansas Agricultural Experiment Station Research Reports

Intensive early stocking (IES) was introduced nearly a half century ago in eastern Kansas and has since been adopted as a major management tool to increase animal production, efficiency of production, and economic return on tallgrass rangelands. These increases have come almost exclusively by using IES with young stocker animals. Intensive early stocking and its gains have been proven effective repeatedly in published research. A similar modified IES (MIES) system has increased production efficiency of stocker animals on western Kansas rangelands. Perennial grassland acres for cattle production, as well as cattle numbers, are declining. Using management practices that mimic a ...


Effects Of Supplementation With Corn Or Dried Distillers Grains On Gains Of Heifer Calves Grazing Smooth Bromegrass Pastures, L. W. Lomas, J. L. Moyer Jan 2018

Effects Of Supplementation With Corn Or Dried Distillers Grains On Gains Of Heifer Calves Grazing Smooth Bromegrass Pastures, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

Distillers grains, a by-product of the ethanol industry, have tremendous potential as an economical and nutritious supplement for grazing cattle. Distillers grains contain a high concentration of protein (25 to 30%), with more than two-thirds escaping degradation in the rumen, which makes it an excellent supplement for younger cattle. Recent advancements in the ethanol manufacturing process have resulted in extraction of a greater amount of fat; therefore, creating distillers grains that may contain less energy than corn. This research was conducted to compare performance of stocker cattle supplemented with corn or DDG at 0.5% body weight per head daily ...


Nitrogen, Phosphorus, And Potassium Fertilization For Newly Established Tall Fescue, D. W. Sweeney, J. L. Moyer, J. K. Farney Jan 2018

Nitrogen, Phosphorus, And Potassium Fertilization For Newly Established Tall Fescue, D. W. Sweeney, J. L. Moyer, J. K. Farney

Kansas Agricultural Experiment Station Research Reports

Tall fescue is the major cool-season grass in southeastern Kansas. Perennial grass crops, as with annual row crops, rely on proper fertilization for optimum production; however, meadows and pastures are often under-fertilized and produce low quantities of low-quality forage. Even when new stands are established, this is often true. The objective of this study was to determine whether N, P, and K fertilization improves yields during the early years of a stand.


Soil Health Profile In Claypan Soils, C. J. Hsiao, G. F. Sassenrath, C. Rice, G. Hettiarachchi, L. Zeglin Jan 2018

Soil Health Profile In Claypan Soils, C. J. Hsiao, G. F. Sassenrath, C. Rice, G. Hettiarachchi, L. Zeglin

Kansas Agricultural Experiment Station Research Reports

Healthy soil is the foundation of a sustainable agronomic production system. Microorganisms include bacteria (such as actinomycetes), fungi, and protozoa. Soil microorganisms, or microbes, exist in large numbers in soils and are critical for decomposition of organic residues and nutrient recycling. Soils with ample and diverse microbial populations can provide more essential nutrients for crop growth and development. Soil microbial properties are considered one of the major indicators of soil health.

Soil microbial properties can be measured by the activity and the composition of micro-organism populations. Phospholipid fatty acids (PLFA) are the primary components of cell membranes, they can be ...


Annual Summary Of Weather Data For Parsons – 2017, M. Knapp, L. W. Lomas Jan 2018

Annual Summary Of Weather Data For Parsons – 2017, M. Knapp, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Weather Data for Parsons – 2017


Searc Agricultural Research 2018, L. W. Lomas Jan 2018

Searc Agricultural Research 2018, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Agricultural Research 2018, Southeast Agricultural Research Center, Kansas State University, April 2018


Nitrogen Application Effects On Forage Sorghum Biomass Production And Nitrates, A. Obour, J. D. Holman, D. B. Mengel Jan 2018

Nitrogen Application Effects On Forage Sorghum Biomass Production And Nitrates, A. Obour, J. D. Holman, D. B. Mengel

Kansas Agricultural Experiment Station Research Reports

Forage sorghum (Sorghum bicolor (L.) Moench) is a highly productive annual summer forage that can be grazed, hayed or ensiled for winter feed, confined feeding, or grazed to supplement native pasture. Recently, there has been interest in growing forage sorghum for hay or grazing in place of fallow to increase residue cover as part of an integrated forage or cover crop system. The high water use efficiency and heat and drought tolerance of sorghum makes it an ideal forage crop choice for growers in the water-limited Great Plains environment. Furthermore, due to the declining saturated thickness of the Ogallala and ...


Seeding Rate And Nitrogen Application Effects On Spring Oat And Triticale Forage, A. Obour, J. D. Holman, A. Schlegel Jan 2018

Seeding Rate And Nitrogen Application Effects On Spring Oat And Triticale Forage, A. Obour, J. D. Holman, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

Spring oat and triticale are important forage crops in dryland and limited irrigated crop production systems in western Kansas. Previous research in western Kansas showed that growing spring forages in place of fallow reduced soil erosion and increased fallow precipitation use efficiency compared to summer fallow, and increased profitability compared to fallow in years with average to above average rainfall. Despite the great potential of spring forages, information on seeding rate and nitrogen fertilizer recommendations are limited. These management practices can affect forage productivity and nutritive value.

Current N fertilizer recommendations for oat and triticale are based on a very ...


Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd Jan 2018

Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd

Kansas Agricultural Experiment Station Research Reports

Many insect pests have a larval or grub stage that resides belowground and feeds on turfgrass roots (Potter, 1998; Vittum et al., 1999; Held and Potter, 2012). The major belowground insect pests (white grubs) associated with turfgrass throughout Midwestern states that are present in Kansas include: May/June beetles (Phyllophaga spp), masked chafers (Cyclocephala spp), and bluegrass billbug (Sphenophorus parvulus) (Miller et al., 2013). However, there is limited information on the annual occurrence of these insect pests affiliated with the common turfgrass species planted in Kansas, including zoysiagrass (Zoysia japonica) and Kentucky bluegrass (Poa pratensis). Therefore, the objective of this ...


Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle Jan 2018

Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Windmillgrass (Chloris verticillata Nutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Research trials were initiated in 2017 in Onaga and Junction City, KS, to determine windmillgrass control with various single herbicide applications at multiple application timings (spring, summer, and fall). Data collection for research trials consisted of visual percent windmillgrass cover (0–100%), line intersect analysis on four-inch spacing, normalized difference vegetation index (NDVI) (0 to 1 scale), and windmillgrass seedhead counts. Initial observations resulted in greater windmillgrass control with summer applications compared to fall applications. Pylex (topramezome) resulted in 80% windmillgrass ...


Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, Jack D. Fry, Megan M. Kennelly Jan 2018

Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, Jack D. Fry, Megan M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Water conservation is increasingly important when selecting turfgrasses. Zoysiagrass (Zoysia japonica), a C4 grass, is more drought resistant than C3 grasses. However, there is some resistance to the use of zoysiagrass in lawns and golf courses due to its extended dormant period when turf is brown. The objective of this study was to evaluate mowing height, and tall fescue seeding rate and time for establishment of a mixed stand with seeded zoysiagrass. Seeding zoysiagrass and tall fescue together in June generally resulted in a less uniform mixture than seeding zoysiagrass in June and then seeding tall fescue in September. Tall ...


Tillage Study For Corn And Soybeans: Comparing Vertical, Deep, And No-Tillage, E. A. Adee Jan 2018

Tillage Study For Corn And Soybeans: Comparing Vertical, Deep, And No-Tillage, E. A. Adee

Kansas Agricultural Experiment Station Research Reports

Trends from a tillage study conducted since 2011 are beginning to show that corn yields are greater when there is an occasional deep tillage. The yield of soybeans have not been affected significantly by tillage systems ranging from no-till to conventional tillage every year.


Kansas Field Research 2018 Jan 2018

Kansas Field Research 2018

Kansas Agricultural Experiment Station Research Reports

The research program at the Kansas State University East Central Kansas Experiment Field is designed to keep area crop producers abreast of technological advances in agronomic agriculture.

The Kansas State University Kansas River Valley Experiment Field was established to study management and effective use of irrigation resources for crop production in the Kansas River Valley (KRV).


Trends In Beef Calf Lots By Single Breed Sire Groups Marketed Via Video Auction From 2010 Through July 14, 2017, E. D. Mccabe, M. E. King, K. E. Fike, K. L. Hill, G. M. Rogers, K. G. Odde Jan 2018

Trends In Beef Calf Lots By Single Breed Sire Groups Marketed Via Video Auction From 2010 Through July 14, 2017, E. D. Mccabe, M. E. King, K. E. Fike, K. L. Hill, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to characterize the potential change in the percentage of lots of beef calves sired by a single breed marketed via video auction from 2010 through July 14, 2017.

Study Description: Information describing factors about lots sold through a livestock video auction service (Superior Livestock Auction, Fort Worth, TX) was obtained in electronic format. Sire breed of a lot was determined based on the description provided by sellers. All calves in a lot were sired by a single breed and a minimum of 50 lots were required for the analysis. The Cochran-Armitage trend test was used to ...


Naive Yearling Steers Consume Little Sericea Lespedeza In The Kansas Flint Hills, C. A. Sowers, J. D. Wolf, W. H. Fick, K C. Olson Jan 2018

Naive Yearling Steers Consume Little Sericea Lespedeza In The Kansas Flint Hills, C. A. Sowers, J. D. Wolf, W. H. Fick, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to characterize diets selected by steers grazing sericea lespedeza (Lespedeza cuneata)-infested native tallgrass pastures.

Study Description: The experiment was conducted on eight native tallgrass pastures located in Woodson County, KS, at the Kansas State University Bessner Range Research Unit during the 2015 and 2016 growing season. Pastures were burned annually in April and stocked with yearling steers (n = 281/year; initial body weight = 582 ± 75 lb) at a relatively high stocking rate (2.7 acres/steer) from April 15 to July 15. Basal frequency of sericea lespedeza was 2.9 ± 2.43 ...


Sericea Lespedeza Control From Growing-Season Prescribed Burning Causes No Collateral Damage To Non-Target Species, J. A. Alexander, W. H. Fick, J. Lemmon, G. A. Gatson, K C. Olson Jan 2018

Sericea Lespedeza Control From Growing-Season Prescribed Burning Causes No Collateral Damage To Non-Target Species, J. A. Alexander, W. H. Fick, J. Lemmon, G. A. Gatson, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the effects of 4 consecutive years of prescribed fire applied to native tallgrass range in either April, August, or September on forage biomass production, soil cover, and basal plant cover.

Study Description: Nine fire-management units (14 ± 6 acres) were burned at 1 of 3 prescribed times: early spring (April 1), mid-summer (August 1), or late summer (September 1). Plant species composition and soil cover were assessed annually each July using a modified step-point technique.

The Bottom Line: Burning during the summer for 4 consecutive years resulted in excellent control of sericea ...


Sericea Lespedeza Control Strategies Differ In Their Impacts On Overall Range Health And Native Plant Species Composition, G. A. Gatson, W. H. Fick, W. W. Hsu, K C. Olson Jan 2018

Sericea Lespedeza Control Strategies Differ In Their Impacts On Overall Range Health And Native Plant Species Composition, G. A. Gatson, W. H. Fick, W. W. Hsu, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the effects of sericea lespedeza (Lespedeza cuneata) control strategies of late summer prescribed burning and fall her­bicide application on soil cover, native plant populations, and biological diversity.

Study Description: We established 16 individual units within an 80-acre native tallgrass pasture. Each unit was assigned to 1 of 4 treatments: control, spray only, burn only, or burn-plus-spray. Burn only and burn-plus-spray units were burned in early September. Spray only and burn-plus-spray units were sprayed with metsulfuron methyl (Escort XP, DuPont, Wilmington, DE) in late September. The change in soil cover and ...