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Articles 1 - 30 of 66
Full-Text Articles in Life Sciences
2022 Kansas State University Industrial Hemp Dual-Purpose Variety Trials, Kraig Roozeboom, Jason Griffin
2022 Kansas State University Industrial Hemp Dual-Purpose Variety Trials, Kraig Roozeboom, Jason Griffin
Kansas Agricultural Experiment Station Research Reports
Hemp is a broad term used to describe the many varieties ofCannabis sativaL. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant and has recently been approved in the United States. There are many uses for industrial hemp, and the market for industrial hemp is rapidly growing as more states are legalizing its production. Industrial hemp is marketed for oil, grain, and fiber. Varieties have been selected for improved fiber and grain production that can service these markets. However, little research-based information is available regarding adaptability or production of these varieties in Kansas. The objectives …
Grazing Cover Crops Improved Soil Health In Dryland Cropping Systems, Augustine K. Obour, John D. Holman, Logan M. Simon, Sandra K. Johnson
Grazing Cover Crops Improved Soil Health In Dryland Cropping Systems, Augustine K. Obour, John D. Holman, Logan M. Simon, Sandra K. Johnson
Kansas Agricultural Experiment Station Research Reports
Integrating cover crops (CCs) in dryland crop production in the semiarid central Great Plains (CGP) can provide several ecosystem benefits. However, CC adoption has been slow in the CGP because CCs utilize water that otherwise would be available for the subsequent cash crop. Grazing CCs can provide economic benefits to offset revenue loss associated with decreased crop yields when CCs are grown ahead of a cash crop. Field experiments were conducted from 2015 through 2022 to quantify effects of grazing CCs on soil bulk density, aggregate stability, and chemical properties across western Kansas. At the Kansas State University HB Ranch …
Weaning Method Evaluation For Beef Cattle, Jaymelynn K. Farney
Weaning Method Evaluation For Beef Cattle, Jaymelynn K. Farney
Kansas Agricultural Experiment Station Research Reports
Weaning is a stressful event for calves. Various management practices have been suggested to reduce weaning stress. The purpose of this study was to evaluate three different weaning management practices on calf gains at weaning. Eighty-eight bull and heifer calves were assigned to one of three weaning treatments at two research locations. The weaning management options were abrupt weaning, fence-line weaning, and use of a nose-flap weaning device. Calves were weighed at the start of the measurement period and then two weeks later after weaning was completed. Calves that were weaned using the nose-flap method had significantly lower gains than …
Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Manhattan, Ks, In 2021, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Andrew Euler, Ike Bahr, Brian Owuoche
Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Manhattan, Ks, In 2021, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Andrew Euler, Ike Bahr, Brian Owuoche
Kansas Agricultural Experiment Station Research Reports
Hemp has garnered interest as a potential crop that is not constrained by the typical food, feed, and fuel market channels. Although hemp varieties are available for the production of either grain, fiber, or both (dual-purpose: both grain and fiber) markets, little research-based information is available on hemp growth and water use in Kansas environments. In 2019, Kansas State University researchers began conducting experiments to characterize hemp growth, nutrient uptake, and soil water depletion at three locations representing the precipitation gradient across Kansas. In 2021, one fiber and one grain variety were evaluated with and without fertilizer nitrogen. Soil water …
Wheat Variety Test Results For South Central Kansas - 2022, Jeffrey Seiler, Randy Hein, Ryan Flaming, Jennifer Carr, Romulo Lollato, Bruno C. Pedreira
Wheat Variety Test Results For South Central Kansas - 2022, Jeffrey Seiler, Randy Hein, Ryan Flaming, Jennifer Carr, Romulo Lollato, Bruno C. Pedreira
Kansas Agricultural Experiment Station Research Reports
South central Kansas is the highest producing wheat region in Kansas. This report summarizes the results of winter wheat variety tests for 2021-2022 in six locations.
Effect Of Corn Type And Form Of Supplement On Grazing Steers – Year 2, Jaymelynn K. Farney, Harley Allen, Larissa Muniz
Effect Of Corn Type And Form Of Supplement On Grazing Steers – Year 2, Jaymelynn K. Farney, Harley Allen, Larissa Muniz
Kansas Agricultural Experiment Station Research Reports
Eighty stocker steers were grazed on bromegrass from the end of May to the middle of August and were provided five different feeds while on grass during the summer. Treatments evaluated included (1) mineral only; (2) free-choice supplementation in the form of liquid feed (MIX30) or (3) block format (Mintrate 40 Red); and hand-fed supplements of 60% corn:40% dried distillers grains at 0.5% of body weight on a dry matter basis offered daily where the corn was either an (4) isoline corn (ISO; parent genetic line) or (5) Enogen feed corn (ENO; includes alpha-amylase gene). Steers were weighed every 28 …
Hard Red And Soft Red Winter Wheat Variety Testing - 2023, Gretchen F. Sassenrath, Jane Lingenfelser, Xiaomao Lin
Hard Red And Soft Red Winter Wheat Variety Testing - 2023, Gretchen F. Sassenrath, Jane Lingenfelser, Xiaomao Lin
Kansas Agricultural Experiment Station Research Reports
This is a summary of the winter wheat production conditions in southeast Kansas in 2021-2022 and the results of the winter wheat variety testing. Wheat production in 2022 benefited from dry conditions at flowering and harvest. Overall yields of hard red wheat were above multi-year averages, while soft red wheat yields were below the 15-year average. As in previous years, soft red winter wheat out-yielded hard red winter wheat varieties, but the extent was not as dramatic as in previous years.
Improving Resilience Of Corn To Weather Through Improved Fertilizer Efficiency, Na Huang, Gretchen F. Sassenrath, Xiaomao Lin
Improving Resilience Of Corn To Weather Through Improved Fertilizer Efficiency, Na Huang, Gretchen F. Sassenrath, Xiaomao Lin
Kansas Agricultural Experiment Station Research Reports
Fertilization is a critical management tool to improve crop productivity. Corn requires more N fertilizer than some other crops, but the fertility needs of the crop vary based on the growing environment. In this study, we used a modeling approach to examine the historical record and delineate the interaction between fertilizer and weather on the sensitivity of corn yield to climate in southeastern Kansas. Providing optimal fertilizer can improve corn yield. However, too much fertilizer can be expensive and wasteful. This study demonstrated that the climate resilience of corn is moderated by how much fertilizer is applied. The model results …
Yield And Forage Quality On Native Meadows As Affected By Burn And Fertilization Management, Junior I. Yasuoka, Dale Helwig, Walter H. Fick, Bruno C. Pedreira
Yield And Forage Quality On Native Meadows As Affected By Burn And Fertilization Management, Junior I. Yasuoka, Dale Helwig, Walter H. Fick, Bruno C. Pedreira
Kansas Agricultural Experiment Station Research Reports
Native meadows are widely used by producers in southeast Kansas. However, there are few studies about management practices to improve agronomic performance in southeast Kansas. This study evaluated the spring burn effect combined with the application of lime, nitrogen, phosphorus, and potassium on yield and forage quality in native meadows. Yield and forage quality on native meadows were not affected by lime application, or P and K fertilization in the first year of the study. However, N fertilization increased yield, crude protein, and total digestible nutrients when associated with spring burn.
Nutrient Management Strategies To Control Broomsedge Infestation And Improve Yield And Quality Of Tall Fescue Hayfields, Junior I. Yasuoka, Dale Helwig, Wendie Powell, Jaymelynn K. Farney, Gretchen F. Sassenrath, Bruno C. Pedreira
Nutrient Management Strategies To Control Broomsedge Infestation And Improve Yield And Quality Of Tall Fescue Hayfields, Junior I. Yasuoka, Dale Helwig, Wendie Powell, Jaymelynn K. Farney, Gretchen F. Sassenrath, Bruno C. Pedreira
Kansas Agricultural Experiment Station Research Reports
A study in tall fescue hayfields infested with broomsedge and bluestem was conducted at four locations in southeast Kansas. The purpose of this study was to evaluate how phosphorus, nitrogen, and potassium fertilization affect yield, forage quality, and broomsedge/bluestem control in tall fescue hayfields. This trial will be repeated in 2023.
2021 Kansas State University Industrial Hemp Dual-Purpose Variety And Planting Date Trials, Kraig Roozeboom, Jason Griffin, Andrew Euler, Ike Bahr, Brian Owuoche
2021 Kansas State University Industrial Hemp Dual-Purpose Variety And Planting Date Trials, Kraig Roozeboom, Jason Griffin, Andrew Euler, Ike Bahr, Brian Owuoche
Kansas Agricultural Experiment Station Research Reports
Hemp is a broad term used to describe the many varieties ofCannabis sativaL. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently was allowed to be grown again in the United States. There are many uses for industrial hemp, and the market for industrial hemp is rapidly growing as more states are legalizing its production. The market for industrial hemp exceeded $205 million in 2020 and could surpass $310 million by 2028 (Global Market Insights Inc., 2020). The main components of the industrial hemp market are oil, seeds, and fiber. Varieties have …
Assessing The Influence Of Strategic Tillage On Crop Yields And Soil Properties In Dryland No-Tillage Systems, Mikaela A. Lawrence, Augustine K. Obour, John D. Holman, Logan M. Simon, Lucas A. Haag, Kraig L. Roozeboom
Assessing The Influence Of Strategic Tillage On Crop Yields And Soil Properties In Dryland No-Tillage Systems, Mikaela A. Lawrence, Augustine K. Obour, John D. Holman, Logan M. Simon, Lucas A. Haag, Kraig L. Roozeboom
Kansas Agricultural Experiment Station Research Reports
Implementing strategic tillage (ST) in otherwise long-term no-till (NT) systems could control herbicide resistant weeds and increase profitability of crop production in semi-arid dryland cropping systems. For the purpose of this study, ST is defined as a single tillage event (once every 6-10 years) in an otherwise NT system to reduce density of herbicide tolerant grass weeds. However, there is little information on the long-term (>5 years) effects of ST on soil health parameters and crop yields. This study used long-term tillage and crop rotation plots established in 1976 at the Kansas State University Agriculture Research Center in Hays, …
Depth Of Moist Soil At Planting Affected Grain Sorghum Response To Nitrogen Fertilizer, Augustine K. Obour, John D. Holman, Yared Assefa Mulisa
Depth Of Moist Soil At Planting Affected Grain Sorghum Response To Nitrogen Fertilizer, Augustine K. Obour, John D. Holman, Yared Assefa Mulisa
Kansas Agricultural Experiment Station Research Reports
The depth of moist soil before planting is a critical factor for grain crop production in dryland cropping systems. We investigated depth of moist soil at planting and nitrogen (N) fertilizer application effects on continuous grain sorghum yields on a Crete silt loam soil over 32 years in western Kansas. Treatments were four N rates (0, 20, 40, and 60 lb/a) in a randomized complete block design with four replications and depth of moist soil at planting determined with a Paul Brown moisture probe. Grain sorghum yield response to N fertilizer application was -0.10, 14.4, 29.3, and 36.5 lb of …
Early Soybean Planting In A Water-Limited Growing Season, Sylvia R.G. Moraes, Bruno C. Pedreira, Vaishalai Sharda, Rodrigo B. Onofre, Gretchen F. Sassenrath
Early Soybean Planting In A Water-Limited Growing Season, Sylvia R.G. Moraes, Bruno C. Pedreira, Vaishalai Sharda, Rodrigo B. Onofre, Gretchen F. Sassenrath
Kansas Agricultural Experiment Station Research Reports
Appropriate management, with a longer growing season during reproductive growth stages, can increase biomass and yield in soybean. Our objective was to determine the impact of three planting dates, two seed populations, and three maturity groups on grain yield in southeast Kansas. However, due to the severe drought in 2022, with a total rainfall of 18.84 inches during the soybean growing season (55% lower than the 10-yr average), the growing conditions were very limited, resulting in an average yield of 1.7 bu/a.
Climate Long-Term Trends Impacting Wheat Production Systems In Kansas, Octavia M.M. Tavares, Fábio Marin, Romulo Lollato, Bruno C. Pedreira
Climate Long-Term Trends Impacting Wheat Production Systems In Kansas, Octavia M.M. Tavares, Fábio Marin, Romulo Lollato, Bruno C. Pedreira
Kansas Agricultural Experiment Station Research Reports
Winter wheat production is of major importance in Kansas. The purpose of the study was to verify the evidence of climate change in a long-term weather data series from Wellington and Parsons, KS, to understand whether climate change has been affecting yield production.
Wheat And Grain Sorghum Sequencing For Three Crops In Four-Year Rotations, Lucas A. Haag, Dewayne Bond, Amanda Burnett, Jeffrey Slattery, Alan Schlegel
Wheat And Grain Sorghum Sequencing For Three Crops In Four-Year Rotations, Lucas A. Haag, Dewayne Bond, Amanda Burnett, Jeffrey Slattery, Alan Schlegel
Kansas Agricultural Experiment Station Research Reports
In 1996, an effort began to quantify soil water storage, crop water use, and crop productivity on dryland systems in western Kansas. Research on 4-year crop rotations with wheat and grain sorghum was initiated at the Southwest Research-Extension Center near Tribune, KS. Rotations were wheatwheat- sorghum-fallow (WWSF), wheat-sorghum-sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9.1 in. following sorghum, which is about 3.8 in. more than the average for the second wheat crop in a WWSF rotation. Soil water at sorghum planting was only about 1.5 in. less for the second sorghum crop compared with …
Evaluation Of Novel Deficit Irrigation Techniques In Western Kansas, Jonathan Aguilar, Farzam Moghbel, Forough Fazel
Evaluation Of Novel Deficit Irrigation Techniques In Western Kansas, Jonathan Aguilar, Farzam Moghbel, Forough Fazel
Kansas Agricultural Experiment Station Research Reports
In search of techniques to reduce irrigation water use in the Ogallala Aquifer region, several deficit irrigation techniques were evaluated in corn and cotton production. Several iterations of deficit irrigation (based on ET), including partial root-zone deficit (PRD) and regulated deficit irrigation (RDI) treatments, were implemented in the 2021 and 2022 summer season. Corn and cotton did respond to the different deficit irrigation treatments. Significant yield advantages were observed in fixed PRD on both crops while RDI also showed some yield advantage for corn.
Could The Use Of Nitrification Inhibitor Optimize The Nitrogen Use Efficiency Of Corn Production?, Pedro Morinigo, Dorivar A. Ruiz Diaz
Could The Use Of Nitrification Inhibitor Optimize The Nitrogen Use Efficiency Of Corn Production?, Pedro Morinigo, Dorivar A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Nitrogen (N) is an essential nutrient for corn production, higher grain yields are dependent on N fertilizer application. Substances like the nitrification inhibitors (NI) were created to increase yields, promote nitrogen use efficiency (NUE), and reduce N losses. The study was carried out in ten site-years in Kansas from 2017 to 2021, with the objective of evaluating the nitrogen agronomic efficiency (NAE) in corn with and without the use of NI and comparing corn grain yield, grain N uptake, and soil mineral nitrogen content with the use of the NI. Nitrogen fertilizer at the rates of 100, 150, and 200 …
Corn And Soybean Yield As Affected By Cover Crop And Phosphorus Fertilizer Management, Megan A. Bourns, Elaheh Khosh Manzar, Nathan O. Nelson, Kraig L. Roozeboom, Gerard J. Kluitenberg, Ganga M. Hettiarachchi, Elizabeth A. Yeager, Peter J. Tomlinson, Deann R. Presley
Corn And Soybean Yield As Affected By Cover Crop And Phosphorus Fertilizer Management, Megan A. Bourns, Elaheh Khosh Manzar, Nathan O. Nelson, Kraig L. Roozeboom, Gerard J. Kluitenberg, Ganga M. Hettiarachchi, Elizabeth A. Yeager, Peter J. Tomlinson, Deann R. Presley
Kansas Agricultural Experiment Station Research Reports
Phosphorus (P) fertilizer additions are often required to meet crop nutrient demands, but over-fertilization can have economic consequences, as well as environmental consequences from agricultural P loss. Therefore, we require management strategies that balance crop P demand and the need to minimize environmental P loss. The objective of this study was to investigate the effect of cover crop addition and P fertilizer management strategy [build and maintain (BM), sufficiency (SF), and a zero-P control (CN)] on crop yield of a no-till, corn-soybean system for 2020, 2021, and 2022 crop years for a site near Manhattan, KS. The addition of a …
Fungicide Efficacy On Fusarium Head Blight Of Hard Red Winter Wheat In Parsons, Ks, Sylvia R.G. Moraes, Bruno C. Pedreira, Gretchen F. Sassenrath, Erick De Wolf, Rodrigo B. Onofre, Kelsey Andersen Onofre
Fungicide Efficacy On Fusarium Head Blight Of Hard Red Winter Wheat In Parsons, Ks, Sylvia R.G. Moraes, Bruno C. Pedreira, Gretchen F. Sassenrath, Erick De Wolf, Rodrigo B. Onofre, Kelsey Andersen Onofre
Kansas Agricultural Experiment Station Research Reports
In 2022, a field experiment was conducted to investigate the efficacy of fungicide programs on Fusarium head blight (FHB) and deoxynivalenol (DON) levels. Fungicide treatments were evaluated in plots of the hard red winter wheat cultivar ‘KanMark’ inoculated withFusarium graminearumin Parsons, KS. Treatments consisted of a single application of Prosaro, Caramba, Miravis Ace, Prosaro Pro, or Sphaerex at early anthesis (Feekes 10.5.1), or dual application of Miravis Ace at early anthesis followed by (fb) Prosaro Pro, Sphaerex, or Folicur at 4 days after early anthesis. All fungicide programs numerically reduced FHB visual symptoms and resulted in …
Evaluation Of Grazing Options During Summer For Growing Heifers – Year 3, Jaymelynn K. Farney, Larissa Muniz, Harley Allen
Evaluation Of Grazing Options During Summer For Growing Heifers – Year 3, Jaymelynn K. Farney, Larissa Muniz, Harley Allen
Kansas Agricultural Experiment Station Research Reports
Developing methods to provide high quality forage through most of the year is important for cattle operations. The purpose of this study was to determine forage management options to offset the summer “slump” with fescue. Four grass pasture treatments (10 pastures total; 4 acres each) were used in a completely randomized design and stocked with growing heifers (n = 49; initial wt 461 ± 65 lb). Pasture treatments consisted of novel fescue (FES), crabgrass (CRAB), bermudagrass (BERM), and sorghum-sudan interseeded into novel fescue (SS-FES). Heifers were weighed and they grazed pastures from May to September. Heifers on FES were continuously …
Impact Of Lime, Phosphorus, And Potassium On Yield And Forage Quality On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira
Impact Of Lime, Phosphorus, And Potassium On Yield And Forage Quality On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira
Kansas Agricultural Experiment Station Research Reports
Native meadows are frequently harvested for hay in southeast Kansas to produce forage for winter use. However, the low soil fertility associated with nutrient removal has resulted in limited yield potential and broomsedge infestation. This study evaluated the effect of phosphorus, potassium, and lime on the forage yield and quality in a native meadow. Our results indicated that P and K fertilization contributes to improving yield and quality on native meadows in southeast Kansas. This study will be repeated in 2023, including broomsedge measurements.
Control Of Soil-Borne Disease Of Soybean, Gretchen F. Sassenrath, Christopher R. Little, Xiaomao Lin, Sylvia R.G. Moraes
Control Of Soil-Borne Disease Of Soybean, Gretchen F. Sassenrath, Christopher R. Little, Xiaomao Lin, Sylvia R.G. Moraes
Kansas Agricultural Experiment Station Research Reports
Soil-borne diseases are a significant cause of reduction in crop yield. Alternative management of soils can enhance the natural disease-controlling organisms in the soil. This study explores the impact of alternative production methods on a primary soybean disease, charcoal rot, caused by the fungusMacrophomina phaseolina. Treatments that could potentially enhance or control the disease were implemented, and soil tests were conducted for nutrient and disease presence. Manure increased the nutrient levels in the soil, as expected, but did not impact the disease control. Solarization increased the temperature within the plots, and increased the number of colony forming units …
Critical Soil Health Parameters To Improve Crop Production, Gretchen F. Sassenrath, Bruno C. Pedreira, Carlos B. Pires
Critical Soil Health Parameters To Improve Crop Production, Gretchen F. Sassenrath, Bruno C. Pedreira, Carlos B. Pires
Kansas Agricultural Experiment Station Research Reports
Soil health is a critical determinant of plant performance. This manuscript describes how the physical, chemical, and biological components within the soil interact to create good soil health. Soil structure is important to provide support for plants, nutrient and water cycling, decreased compaction, and more efficient carbon storage. Measurements of soil properties are presented that can be done in the field on any soil.
Weed Control With Imiflex In Igrowth Forage Sorghum, R. S. Currie, P. W. Geier, S. H. Lancaster, C. M. Weber
Weed Control With Imiflex In Igrowth Forage Sorghum, R. S. Currie, P. W. Geier, S. H. Lancaster, C. M. Weber
Kansas Agricultural Experiment Station Research Reports
Igrowth (imidazolinone-resistant) forage sorghum hybrids were recently commercialized in Kansas. Even though the active ingredient of the herbicide associated with these systems, imazamox, is used in other crops, data are needed to define best practices for use in forage sorghum. The objective of experiments in Manhattan and Garden City, KS, was to investigate the use of ImiFlex (imazamox) herbicide in Igrowth (imidazolinone-tolerant) forage sorghum. At Garden City, volunteer corn and johnsongrass control 29 days after treatment was 90% or greater in all treatments that included ImiFlex. Similarly, Palmer amaranth control 28 days after treatment was 91% or greater at Manhattan. …
2022 Fertilizer Station Weather Report, Matthew Sittel
2022 Fertilizer Station Weather Report, Matthew Sittel
Kansas Agricultural Experiment Station Research Reports
This report includes the annual summary of precipitation and temperatures from 2022 at the research locations represented in the 2023 fertilizer report.
Performance Of Corn Hybrids With Contrasting Maturity In Northeastern Kansas, L. N. Lingua, I. Massigoge, A. J. P. Carcedo, I. A. Ciampitti
Performance Of Corn Hybrids With Contrasting Maturity In Northeastern Kansas, L. N. Lingua, I. Massigoge, A. J. P. Carcedo, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
Corn (Zea maysL.) hybrid selection is one of the most important agricultural management decisions made by farmers. Both genetic yield potential and adaptation to the local environment vary widely across corn hybrids, and have a direct impact on yield and input costs. This study compared the performance of corn hybrids with contrasting comparative relative maturity (CRM, referring to their growth cycle), to evaluate their differences in crop phenology, grain yield and its components—grain number and grain weight. The field experiment was conducted during the 2022 growing season in Manhattan, KS (U.S.), testing five commercial corn hybrids with contrasting …
Dynamics Of Oil And Fatty Acid In Historical Sorghum Varieties, N. S. Volpato, A. J. P. Carcedo, T. Durrett, L. Marziotte, L. Mayor, I. A. Ciampitti
Dynamics Of Oil And Fatty Acid In Historical Sorghum Varieties, N. S. Volpato, A. J. P. Carcedo, T. Durrett, L. Marziotte, L. Mayor, I. A. Ciampitti
Kansas Agricultural Experiment Station Research Reports
One of the important characteristics of cereal crops is their diverse pool of fatty acids. This study aims to determine the changes in sorghum oil content and fatty acid profile across many years of the market’s variety releases. Six sorghum varieties, all released between 1960 and 2019, were evaluated and grain traits were analyzed using linear models. Ten different fatty acids were characterized, but only three out of the total represented more than 90% of the total oil concentration: linoleic, oleic, and palmitic acid. Total oil and linoleic acid concentration (g of oil/kg) slightly decreased across years of release. In …
Tillage Study For Corn And Soybeans: Comparing Vertical, Deep, And No-Tillage / Year 10, E. Adee
Tillage Study For Corn And Soybeans: Comparing Vertical, Deep, And No-Tillage / Year 10, E. Adee
Kansas Agricultural Experiment Station Research Reports
Trends from a tillage study conducted since 2011 have shown no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation. One year out of eight years has shown a yield advantage for either corn or soybeans for any tillage system, which appears to be related to environmental conditions experienced during the season. Averaged across all years of the study, the treatments with deep tillage either every or every-other year had about 4.5% higher corn yields, and soybeans had up to a 3.2% yield increase with some form of tillage.
Imiflex Evaluation At Two Kansas Locations In Igrowth Grain Sorghum, P. W. Geier, R. S. Currie, S. H. Lancaster, C. M. Weber
Imiflex Evaluation At Two Kansas Locations In Igrowth Grain Sorghum, P. W. Geier, R. S. Currie, S. H. Lancaster, C. M. Weber
Kansas Agricultural Experiment Station Research Reports
Herbicide-tolerant grain sorghums, such as Igrowth (imidazolinone-resistant) hybrids were recently commercialized in Kansas. Even though the active ingredient of the herbicide associated with these systems, imazamox, is used in other crops, data are needed to define best practices for use in grain sorghum. The objective of these studies was to evaluate ImiFlex (imazamox) herbicide in Igrowth grain sorghum at two Kansas locations in 2022. ImiFlex applied postemergence provided 93% volunteer corn control, and 90 to 95% johnsongrass control regardless of application timing at Garden City. At Manhattan, ImiFlex controlled Palmer amaranth 90 to 99%. Early season grain sorghum injury was …