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- Wheat (15)
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- Forage (6)
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- No-till (6)
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- Seeding rate (5)
- Sequential applications (5)
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- Sorghum (4)
- Soybeans (4)
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- Giant ragweed (3)
- Henbit (3)
- Long-term fertility (3)
- Nitrogen fertilization (3)
- Nitrogen fertilizer (3)
- Nutrient removal (3)
- Phosphorus fertilization (3)
- Precipitation (3)
- Roundup Ready 2 Xtend soybeans (3)
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Articles 31 - 60 of 112
Full-Text Articles in Life Sciences
Irrigated Sunflowers In Northwest Kansas: Productivity And Canopy Formation, F. Lamm, R. M. Aiken, A. A. Aboukheira, G. J. Seiler
Irrigated Sunflowers In Northwest Kansas: Productivity And Canopy Formation, F. Lamm, R. M. Aiken, A. A. Aboukheira, G. J. Seiler
Kansas Agricultural Experiment Station Research Reports
Sunflower was grown in a three-year study (2009, 2010, and 2012) at the Kansas State University Northwest Research-Extension Center at Colby, KS, under a lateral move sprinkler irrigation system. Irrigation capacities were limited to no more than 1 inch every 4, 8, or 12 days but were scheduled only as needed as determined with a weather-based water budget. Achene (sunflower seed) yields and oil yield generally plateaued at the medium irrigation level. Dormant preseason irrigation increased achene yield and oil yield by 2% with most of this increase occurring in the extreme drought year, 2012. The optimum harvest plant population …
Two Pass Weed Control Programs In Conventional Tillage Xtend Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan
Two Pass Weed Control Programs In Conventional Tillage Xtend Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan
Kansas Agricultural Experiment Station Research Reports
The development of glyphosate-resistant weeds has greatly complicated weed control in soybeans. Roundup Ready 2 Xtend (dicamba tolerant) soybeans provide growers an alternative herbicide option for postemergence weed control in conventional tillage soybeans. Two pass programs consisting of preemergence residual herbicides followed by postemergence Roundup Power Max plus dicamba provided excellent weed control, superior to a single postemergence treatment with Roundup Power Max plus dicamba.
Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti
Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
Genotype by seeding rate interaction can play a critical role in understanding wheat (Triticum aestivumL.) yield potential. The objective of this study was to quantify wheat yield response to seeding rates by contrasting genotypes (high- vs. low-tillering). One study was planted at two locations: Ashland Bottoms (dryland and conventional tillage) and at Topeka (irrigated and no-tillage) field research stations (Kansas). The two winter wheat varieties were sown at four different seeding rates (40, 80, 120, and 160 lb/a). Measurements consisted of stand counts, canopy coverage (estimated via imagery collection), determination of early-season gaps in the final stand (missing …
Timing And Positioning Of Simulated Hail Damage Effects On Wheat Yield In Kansas, R. Lollato, B. R. Jaenisch, R. Maeoka, A. De Oliveira Silva, C. Sciarresi
Timing And Positioning Of Simulated Hail Damage Effects On Wheat Yield In Kansas, R. Lollato, B. R. Jaenisch, R. Maeoka, A. De Oliveira Silva, C. Sciarresi
Kansas Agricultural Experiment Station Research Reports
Hail events often decrease wheat yields in Kansas; however, estimates of yield loss due to hail event timing and position relative to the flag leaf are only available for old varieties. Our objectives were to quantify wheat yield losses as affected by timing of hail event relative to the crop development and positioning of the damage relative to the flag leaf. A total of 12 hail damage treatments including six different timings during the growing season (boot, anthesis, milk, soft dough, hard dough, and ripe) and two different positionings relative to the flag leaf (above or below) were evaluated in …
Productivity Of A Triticale And Crimson Clover Winter Cover Crop For Dairies, K. Olagaray, C. Takiya, M. Scheffel, T. Brown, J. S. Stevenson, D. H. Min, B. Bradford
Productivity Of A Triticale And Crimson Clover Winter Cover Crop For Dairies, K. Olagaray, C. Takiya, M. Scheffel, T. Brown, J. S. Stevenson, D. H. Min, B. Bradford
Kansas Agricultural Experiment Station Research Reports
The potential for a winter cover crop to align with agronomic objectives and to support milk production was evaluated at the Kansas State University Dairy Teaching and Research Center, Manhattan, KS. August planting of a triticale and crimson clover blend following corn silage harvest resulted in production of more than 3.5 tons of dry matter prior to subsequent corn planting. After ensiling, the impact of triticale/crimson clover silage (TCS) on milk production was evaluated in 48 mid- to late-lactation Holstein cows. Cows were blocked by parity (1 and 2+) and milk production, then randomly assigned within block to treatment sequence …
Alternatives To Glyphosate For Palmer Amaranth Control In Wheat Stubble, D. E. Peterson, C. Thompson, C. L. Minihan
Alternatives To Glyphosate For Palmer Amaranth Control In Wheat Stubble, D. E. Peterson, C. Thompson, C. L. Minihan
Kansas Agricultural Experiment Station Research Reports
Glyphosate-resistant Palmer amaranth has become a serious weed problem in fields following wheat harvest. A field experiment was established in 2016 near Manhattan, KS, to evaluate herbicide alternatives to glyphosate for Palmer amaranth control in wheat stubble. The two most effective postharvest herbicides for control of Palmer amaranth were Gramoxone (paraquat) or Sharpen (saflufenacil). Clarity (dicamba) and 2,4-D treatments provided suppression of Palmer amaranth, but were inconsistent, and often some plants survived and produced viable seed. The tank-mix of Clarity plus 2,4-D was more effective than either herbicide alone, but not as good as Gramoxone or Sharpen.
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 18 2017, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 18 2017, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
An Assessment Of Economic Considerations For Industrial Hemp Production, Luke Lane, Jennie S. Popp, Michael P. Popp, Harrison M. Pittman
An Assessment Of Economic Considerations For Industrial Hemp Production, Luke Lane, Jennie S. Popp, Michael P. Popp, Harrison M. Pittman
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
United States farm policy and programs are governed by the Farm Bill. The 2014 Farm Bill allows for the legal production and research of industrial hemp as long as it meets the standards outlined in the Farm Bill. Although it has a wide range of uses (upwards of 25,000 products use hemp), there is a lack of recent information regarding the economic feasibility of hemp production for the private agricultural sector. Through an extensive search of existing literature, information was gathered to construct an enterprise budget for industrial hemp. Data from the enterprise budget were used in a constrained linear …
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Development Of A Berry Processing Score For Sorghum Silage And Assessment Of Processing Effects On Sorghum Silage Starch Digestibility, J. R. Johnson, J. P. Goeser, Michael Brouk
Development Of A Berry Processing Score For Sorghum Silage And Assessment Of Processing Effects On Sorghum Silage Starch Digestibility, J. R. Johnson, J. P. Goeser, Michael Brouk
Kansas Agricultural Experiment Station Research Reports
The objectives of this study were to develop a berry processing score (BPS) for sorghum silage, similar to the kernel processing score currently used for corn silage, and to evaluate the effects of processing on starch digestibility. Sorghum silage samples were collected from commercial farms in Kansas and randomly assigned to 1 of 4 processing levels differing in roll gap spacing: unprocessed (UNP), 1.5 (1.5P), 1.0 (1.0P), or 0.5 (0.5P) mm. Differences in BPS and starch digestibility were found–as the roll gap decreased, both BPS and starch digestibility increased. Thus, by processing sorghum silage during harvest and measuring the extent …
Effects Of Interseeding Ladino Clover Into Tall Fescue Pastures Of Varying Endophyte Status On Grazing Performance Of Stocker Steers, L. W. Lomas, J. L. Moyer
Effects Of Interseeding Ladino Clover Into Tall Fescue Pastures Of Varying Endophyte Status On Grazing Performance Of Stocker Steers, L. W. Lomas, J. L. Moyer
Kansas Agricultural Experiment Station Research Reports
Sixty-four yearling steers grazing tall fescue pastures were used to evaluate the effects of fescue cultivar and interseeding ladino clover on grazing gains and available forage. Fescue cultivars evaluated were high-endophyte ‘Kentucky 31,’ low-endophyte ‘Kentucky 31,’ ‘HM4,’ and ‘MaxQ.’ Steers that grazed pastures of low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ gained significantly more (P<0.05) and produced more (P<0.05) gain/a than those that grazed high-endophyte ‘Kentucky 31’ pastures. Gains of cattle that grazed low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ were similar (P>0.05). High-endophyte ‘Kentucky 31’ pastures had more (P<0.05) available forage than lowendophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ pastures.
Timing Of Side-Dress Applications Of Nitrogen For Corn In Conventional And No-Till Systems, D. W. Sweeney, D. E. Shoup
Timing Of Side-Dress Applications Of Nitrogen For Corn In Conventional And No-Till Systems, D. W. Sweeney, D. E. Shoup
Kansas Agricultural Experiment Station Research Reports
Corn yields were affected by tillage and nitrogen (N) side-dress options in 2016. Corn yields were 12% greater with conventional tillage than with no-till. Side-dress applications of N at V10 resulted in greater corn yield than side-dress N applications at V6.
Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer
Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer
Kansas Agricultural Experiment Station Research Reports
A total of 280 mixed black yearling steers were used to compare grazing and subsequent finishing performance from pastures with ‘MaxQ’ tall fescue, a wheat-bermudagrass double-crop system, or a wheat-crabgrass double-crop system in 2010, 2011, 2012, 2013, 2014, 2015, and 2016. Daily gains of steers that grazed MaxQ fescue, wheatbermudagrass, or wheat-crabgrass were similar (P>0.05) in 2010 and 2016. Daily gains of steers that grazed wheat-bermudagrass or wheat-crabgrass were greater (P>0.05) than those that grazed MaxQ fescue in 2011 and 2012. Daily gains of steers that grazed wheat-crabgrass were greater (P>0.05) than those that grazed wheat-bermudagrass and …
Crop Production Summary, Southeast Kansas – 2016, Gretchen Sassenrath, L. Mengarelli, Jane Lingenfelser, X. Lin, D. E. Shoup
Crop Production Summary, Southeast Kansas – 2016, Gretchen Sassenrath, L. Mengarelli, Jane Lingenfelser, X. Lin, D. E. Shoup
Kansas Agricultural Experiment Station Research Reports
Crop production in southeast Kansas is summarized from variety trials and research plot experiments conducted at the Southeast Research and Extension Center fields in 2016.
Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas
Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas
Kansas Agricultural Experiment Station Research Reports
Use of legumes in bermudagrass pastures did not affect summer cow gains in 2016. Forage availability was also similar where ladino clover was used in the Legume system compared with where Nitrogen (N) alone was used. Estimated forage crude protein (CP) was greater for the Legume than the Nitrogen system in early summer, but was similar by mid-summer.
Research Center Personnel, Acknowledgments, L. W. Lomas
Research Center Personnel, Acknowledgments, L. W. Lomas
Kansas Agricultural Experiment Station Research Reports
Research Center Personnel, Southeast Agricultural Research Center, Kansas
We thank the following individuals, organizations, and firms that contributed to this year’s research programs through financial support, product donations, or services.
Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag
Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag
Kansas Agricultural Experiment Station Research Reports
This study was conducted from 2008 to 2016 at the Kansas State University Southwest Research-Extension Center near Tribune, KS. The purpose of the study was to identify whether more intensive cropping systems can enhance and stabilize production in rainfed cropping systems to optimize economic crop production, more efficiently capture and utilize scarce precipitation, and maintain or enhance soil resources and environmental quality. The crop rotations evaluated were continuous grain sorghum (SS), wheat-fallow (WF), wheat-corn-fallow (WCF), wheat-sorghum-fallow (WSF), wheat-corn-sorghum-fallow (WCSF), and wheat-sorghum-corn-fallow (WSCF). All rotations were grown using no-tillage practices except for WF, which was grown using reduced-tillage. The efficiency of …
Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag
Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag
Kansas Agricultural Experiment Station Research Reports
Four winter wheat varieties (PlainsGold Byrd, Limagrain T158, Syngenta TAM 111, and WestBred Winterhawk) were planted at five seeding rates (30, 45, 60, 75, and 90 lb/a) in the fall of 2014 and 2015 at Colby, Garden City, and Tribune, KS. The objective of the study was to identify appropriate seeding rates for dryland winter wheat in western Kansas. Averaged across varieties, a seeding rate of 60 lb/a seemed to be adequate at all locations in 2015. However, with higher yields in 2016, a higher seeding rate (75 lb/a) was beneficial. The wheat variety T158 was the highest yielding (or …
Irrigated Corn Response To Long-Term Nitrogen And Phosphorus Fertilization, A. Schlegel, H. D. Bond
Irrigated Corn Response To Long-Term Nitrogen And Phosphorus Fertilization, A. Schlegel, H. D. Bond
Kansas Agricultural Experiment Station Research Reports
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize the production of irrigated corn in western Kansas. In 2016, N applied alone increased yields by 85 bu/a, whereas P applied alone increased yields by only 12 bu/a. Nitrogen and P applied together increased yields up to 164 bu/a. This is 20 bu/a greater than the 10-year average, where N and P fertilization increased corn yields up to 144 bu/a. Application of 120 lb/a N (with the highest P rate) produced about 94% of maximum yield in 2016, which is similar to the 10-year average. …
Exploring The Value Of Plant Analysis To Enhance Water Use Efficiency In Southwest Kansas, A. J. Foster, I. Kisekka, B. Golden
Exploring The Value Of Plant Analysis To Enhance Water Use Efficiency In Southwest Kansas, A. J. Foster, I. Kisekka, B. Golden
Kansas Agricultural Experiment Station Research Reports
Nutrient deficiency is identified by use of visual symptoms. However, the application of the proposed deficient nutrient often does not result in the correction of the observed visual symptoms. This is because essential nutrients do not operate independently of each other or independently of the overall plant health and growing conditions. A study was initiated in 2016 at the Kansas State University Southwest Research-Extension Center Finnup Farm near Garden City, KS, to use both soil and plant analyses to identify toxicities or hidden deficiencies that could be limiting corn yield at various irrigation capacities. Soil samples prior to planting and …
Winter And Early Spring Herbicides For Kochia Control In Fallow, R. Currie, P. Geier
Winter And Early Spring Herbicides For Kochia Control In Fallow, R. Currie, P. Geier
Kansas Agricultural Experiment Station Research Reports
A study was initiated near Garden City, KS, in fall of 2015 and spring of 2016 comparing the weed control of several herbicide treatments and their time of application for kochia control in fallow. All herbicide treatments applied in December 2015 provided 99 or 100% kochia control in early spring. However, control declined to less than 60% with these treatments by June 8, 2016. Spring-applied herbicides were generally more efficacious than winter-applied herbicides on June 8, with the best control from treatments of Clarity (dicamba) plus atrazine with or without Zidua (pyroxasulfone) (88 to 89%).
Armezon Pro, Status, Verdict, Glyphosate, Zidua, And Atrazine For Sequential Weed Control In Glyphosate-Resistant Corn, R. Currie, P. Geier
Armezon Pro, Status, Verdict, Glyphosate, Zidua, And Atrazine For Sequential Weed Control In Glyphosate-Resistant Corn, R. Currie, P. Geier
Kansas Agricultural Experiment Station Research Reports
A study was initiated near Garden City, KS, in 2016, comparing the weed control of several herbicide treatments applied sequentially in irrigated corn. Kochia control was 95% or more with all treatments at 1 day after late postemergence application (1 DALP) and 100% regardless of treatment at 63 days after late postemergence application (63 DALP). Palmer amaranth and green foxtail control was 98 to 100% and 83 to 93%, respectively, with all preemergence treatments at 1 DALP. A second late postemergence application was needed to achieve 100% control of Palmer amaranth and green foxtail 63 DALP. The single early postemergence …
Effect Of Residue Management, Row Spacing, And Seeding Rate On Winter Canola Establishment, Winter Survival, And Yield, B. M. Showalter, K. Roozeboom, M. J. Stamm, R. Figger
Effect Of Residue Management, Row Spacing, And Seeding Rate On Winter Canola Establishment, Winter Survival, And Yield, B. M. Showalter, K. Roozeboom, M. J. Stamm, R. Figger
Kansas Agricultural Experiment Station Research Reports
Winter survival of canola (Brassica napusL.) is a challenge for producers using high-residue, no-tillage, or reduced-tillage systems. An innovative residue management system being developed by AGCO Corporation was compared to cooperating canola producers’ residue management and planting methods in wheat stubble. This series of on-farm experiments was conducted in 2014-2015 and 2015-2016 at ten locations in central and south-central Kansas. The AGCO treatments were 20- or 30-in. row spacing and three seeding rates (100,000, 150,000, and 200,000 seeds/a) for a total of six treatments. The producer treatment at each location included row spacing, seeding rate, and residue management …
Do Winter Canola Hybrids And Open-Pollinated Varieties Respond Differently To Seeding Rate?, B. M. Showalter, K. Roozeboom, M. J. Stamm, G. Cramer
Do Winter Canola Hybrids And Open-Pollinated Varieties Respond Differently To Seeding Rate?, B. M. Showalter, K. Roozeboom, M. J. Stamm, G. Cramer
Kansas Agricultural Experiment Station Research Reports
Several producers have turned to planting canola in 30-in. rows as a strategy to take advantage of residue management options (e.g. planter-mounted residue managers and strip tillage) to facilitate planting canola in high-residue cropping systems. Canola hybrids are gaining acres in the southern Great Plains and may require different management than the traditional open-pollinated cultivars. The objective of this study was to determine the effect of seeding rate on winter survival and yield of hybrid and open-pollinated winter canola cultivars in 30-in. and 9-in. rows. Experiments were conducted in 2013-2014, 2014-2015, and 2015-2016 at two K-State Research and Extension facilities. …
Timing Of Strobilurin Fungicide For Control Of Top Dieback In Corn, Eric Adee, Stu Duncan
Timing Of Strobilurin Fungicide For Control Of Top Dieback In Corn, Eric Adee, Stu Duncan
Kansas Agricultural Experiment Station Research Reports
Significant yield losses can result from top dieback (TDB) in dent corn, which is caused by infection by the fungus,Colletotrichum graminicola, causing anthracnose. Research is limited on the effectiveness of fungicide application because of the unpredictable nature of the disease. Three field studies were established to assess the timing of fungicide application on foliar diseases that developed TDB, one in Illinois (2010) and the other two in Kansas (2015 and 2016). Fungicide applications at tasseling and later were effective in reducing the incidence of TDB by greater than 20% and increasing yield greater than 14 bu/a, or greater …
On-Farm Research: Use Of Satellite Imagery Data On Soybean Production, M. N. Gutierrez, S. Varela, N. Peralta, I. A. Ciampitti
On-Farm Research: Use Of Satellite Imagery Data On Soybean Production, M. N. Gutierrez, S. Varela, N. Peralta, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
Nowadays, good agronomical practices demand the adoption of new technologies that deliver better resource efficiency. The objective of this study was to identify and work closely with high-yielding soybean farmers in order to implement precision agriculture tools, in this case, satellite imagery. A field of 150 acres located in Perry, KS, was evaluated in the 2016 season. The study is based on working with the field variation and the selection of three productivity zones outlined according to normalized difference vegetation index (NDVI) values.In situmethods of data collection were performed across the entire field and data from vegetation indices …
Kansas Field Research 2017
Kansas Agricultural Experiment Station Research Reports
Kansas Agricultural Experiment Station Research Reports from research field locations.
Rates Of Armezon Pro For Postemergence Weed Control In Fallow, R. Currie, P. Geier
Rates Of Armezon Pro For Postemergence Weed Control In Fallow, R. Currie, P. Geier
Kansas Agricultural Experiment Station Research Reports
A study was initiated near Garden City, KS, in 2016, comparing the weed control of several tank mixes of Armezon in fallow. Control of kochia and Russian thistle generally increased as Armezon Pro (topramezone + dimethenamid) rates increased from 14 to 20 oz/a. Although these herbicides injured the weeds present, smaller weeds will need to be targeted for effective control. The population of kochia was too thick and the size of the weeds was too large to allow enough coverage for this product to work under the conditions of this trial. The level of tissue damage suggests that further testing …
Response Of Soybean Grown On A Claypan Soil In Southeastern Kansas To The Residual Of Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski
Response Of Soybean Grown On A Claypan Soil In Southeastern Kansas To The Residual Of Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski
Kansas Agricultural Experiment Station Research Reports
Soybean yields measured from 2014 through 2016 were more than 50% greater from the residual from N-based turkey litter applications during 2011 through 2013 than in the control where no nitrogen (N) or phosphorus (P) was applied. However, residual from P-based turkey litter applications or fertilizer-only did not result in soybean yield different from the no N-P control. This residual effect on yield was largely due to increased pods per plant.