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Wheat Variety-Specific Grain Yield Response To Plant Density Under Intensive Management Conditions In Western Kansas, R. P. Lollato, K. Mark, B. R. Jaenisch Jan 2020

Wheat Variety-Specific Grain Yield Response To Plant Density Under Intensive Management Conditions In Western Kansas, R. P. Lollato, K. Mark, B. R. Jaenisch

Kansas Agricultural Experiment Station Research Reports

Seeding rate determines the first yield component of field crops, which is the plant population. However, wheat is less responsive to plant populations than other crops due to the high plasticity in tillering potential, and this responsiveness depends on resource availability. The objective of this project was to evaluate winter wheat popu­lation, grain yield, and grain test weight responses to seeding rate and its interaction with variety in a highly managed production system where manageable stresses were limited. Experiments evaluating the response of the wheat varieties ‘Joe,’ ‘WB-Grain­field,’ ‘Langin,’ and ‘LCS Revere’ to seeding rates ranging from 200 ...


Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett Jan 2020

Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett

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 wheat-wheat-sorghum-fallow (WWSF), wheat-sorghum-sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9 in. following sorghum, which is about 3 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 ...


Kansas Fertilizer Research 2020, D. A. Ruiz Diaz Jan 2020

Kansas Fertilizer Research 2020, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2018-2020 on fertilizer use and management practices for crops in Kansas. Published in 2020 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service https://www.ag.k-state.edu/.


Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett Jan 2020

Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2008–2019 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 ...


Wheat Grain Yield And Protein Concentration Response To Nitrogen And Sulfur Rates, Brent R. Jaenisch, Tara Wilson, Nathan O. Nelson, Mary Guttieri, Romulo P. Lollato Jan 2020

Wheat Grain Yield And Protein Concentration Response To Nitrogen And Sulfur Rates, Brent R. Jaenisch, Tara Wilson, Nathan O. Nelson, Mary Guttieri, Romulo P. Lollato

Kansas Agricultural Experiment Station Research Reports

Winter wheat is often double-cropped after soybeans in no-tillage systems. The soybean crop removes large quantities of sulfur (S), which might cause S deficiency for the following wheat crop. Our objective was to evaluate the responses of three wheat varieties to three nitrogen (N) and four S fertilizer rates representing a range of N:S ratios. The experiment was conducted near Ashland Bottoms and Hutchinson, KS. Treatments were arranged as a complete factorial structure with a split-split-plot design. Variety was the whole-plot, N was the sub-plot, and S was the sub-sub plot. Nitrogen rates were 50, 100, and 150% of ...


Wheat Grain Yield And Grain Protein Concentration Response To Nitrogen Rate During The 2018–2019 Growing Season In Kansas, Romulo P. Lollato, Kavan E. Mark, Brent R. Jaenisch Jan 2020

Wheat Grain Yield And Grain Protein Concentration Response To Nitrogen Rate During The 2018–2019 Growing Season In Kansas, Romulo P. Lollato, Kavan E. Mark, Brent R. Jaenisch

Kansas Agricultural Experiment Station Research Reports

The objective of this project was to evaluate winter wheat grain yield and grain protein concentration responses to nitrogen (N) rate in the state of Kansas during the 2018–2019 growing season. Experiments evaluating the response of the wheat variety Zenda to four nitrogen rates (0, 50, 100, and 150 lb N/a) were established at four locations. In-season measurements included flag leaf N concentration, grain yield, yield components, and grain protein concentration. Flag leaf N concentration ranged from 2.4 to 4.1% across all environments and treatments, and increases in N rates increased flag leaf N concentration linearly ...


Response To Mixing Wheat Seed With Fertilizer In The Drill At Planting, C. Weber, D. A. Ruiz Diaz Jan 2020

Response To Mixing Wheat Seed With Fertilizer In The Drill At Planting, C. Weber, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Mixing dry phosphorus (P) fertilizer with winter wheat seed is common in Kansas to provide a starter fertilizer benefit to the crop. This study was designed to evaluate the effects of dry P sources, rates, and times fertilizer mixed with wheat seed, effects on early growth and overall productivity and yield of the crop. Two winter wheat studies were conducted in the 2018–2019 wheat growing season at Manhattan (site 1) and Topeka (site 2) Kansas. The previous crop for site 1 was soybean and corn at site 2. The winter wheat was no-till drilled at 70 lb/a and ...


Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer Jan 2020

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 400 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, 2016, 2017, 2018, and 2019. Daily gains of steers that grazed MaxQ fescue, wheat-bermudagrass, or wheat-crabgrass were similar (P > 0.05) in 2010, 2016, 2017, and 2018. Daily gains of steers that grazed wheat-bermudagrass or wheat-crabgrass were greater (P > 0.05) than those that grazed MaxQ fescue in 2011, 2012, and 2019. Daily gains of steers that grazed wheat-crabgrass were greater ...


Southeast Kansas Crop Production Summary - 2019, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin, E. Adee Jan 2020

Southeast Kansas Crop Production Summary - 2019, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin, E. Adee

Kansas Agricultural Experiment Station Research Reports

This is a summary of the crop production conditions in southeast Kansas in 2019, and the results of the variety testing for corn, soybean, sorghum, sunflower, and wheat.


Wheat Grain Yield Response To Seed Cleaning And Seed Treatment As Affected By Seeding Rate During The 2018–2019 Growing Season In Kansas, R. P. Lollato, K. Mark, B. R. Jaenisch, L. Haag Jan 2020

Wheat Grain Yield Response To Seed Cleaning And Seed Treatment As Affected By Seeding Rate During The 2018–2019 Growing Season In Kansas, R. P. Lollato, K. Mark, B. R. Jaenisch, L. Haag

Kansas Agricultural Experiment Station Research Reports

The objective of this project was to evaluate winter wheat stand count and grain yield responses to the interactions among seeding rate, seed cleaning, and seed treatment in the state of Kansas during the 2018–2019 growing season. Experiments evaluating the response of the wheat variety “SY Monument” to three seeding rates (600,000, 900,000, and 1,200,000 seeds per acre), three seed cleaning intensities (none, air screen, and gravity table), and two seed treatments (none and insecticide + fungicide) were estab­lished in a split-split plot design conducted in a complete factorial experiment at seven Kansas locations. In-season ...


Winter Wheat Variety-Specific Response To The Combination Of Nitrogen And Foliar Fungicide In 2018–2019, R. P. Lollato, K. Mark, B. R. Jaenisch Jan 2020

Winter Wheat Variety-Specific Response To The Combination Of Nitrogen And Foliar Fungicide In 2018–2019, R. P. Lollato, K. Mark, B. R. Jaenisch

Kansas Agricultural Experiment Station Research Reports

Yield improvements to wheat can result both from variety selection and adoption of improved management practices. However, the yield response to improved manage­ment practices can be variety-specific and can result in decreases in protein concen­tration. Our objectives were to evaluate the yield and protein responses of different commercial winter wheat varieties to increased nitrogen (N) rates and application of foliar fungicides. We conducted a trial combining 20 winter wheat varieties and two management level intensities. The standard management consisted of N applied for a 75 bushel per acre yield goal and no fungicide; and intensive management consisted of ...


Modeling Wheat Susceptibility To Disease, H. Zhao, G. F. Sassenrath, X. Lin, R. Lollato, E. D. De Wolf Jan 2019

Modeling Wheat Susceptibility To Disease, H. Zhao, G. F. Sassenrath, X. Lin, R. Lollato, E. D. De Wolf

Kansas Agricultural Experiment Station Research Reports

Fusarium Head Blight (FHB) or head scab is a disease caused by the soil-borne Fusarium fungus. The disease occurs frequently in southeast Kansas and can result in reduc­tions in wheat yield and quality because of the mycotoxins developed by the fungus. Timely application of fungicides during the heading period of wheat is one option to reduce the fungus and control the infection rate. This study reports our research on use of fungicides to control head scab and improve wheat yield. We developed a model to predict wheat heading date. Accurate knowledge of wheat stage is the first step in ...


Wheat Grain Yield And Protein Response To Nitrogen And Sulfur Rates, B. R. Jaenisch, R. P. Lollato Jan 2019

Wheat Grain Yield And Protein Response To Nitrogen And Sulfur Rates, B. R. Jaenisch, R. P. Lollato

Kansas Agricultural Experiment Station Research Reports

Winter wheat is often double-cropped after soybeans in no-tillage systems. The soybean crop removes large quantities of sulfur (S), which might unbalance ratios of nitrogen (N) to S for the following wheat crop. Our objective was to evaluate the responses of two wheat varieties to three N and four S rates representing a range of N:S ratios. The experiment was arranged as a complete factorial with a split-split-plot design. Variety was the whole-plot, N the sub-plot, and S the sub-sub plot. Nitrogen rates were 50, 100, and 150% of the recommended rate for 60 bu/a, which corresponded to ...


Integrated Wheat Management For Improved Wheat Yield And Protein In Kansas, B. R. Jaenisch, R. P. Lollato Jan 2019

Integrated Wheat Management For Improved Wheat Yield And Protein In Kansas, B. R. Jaenisch, R. P. Lollato

Kansas Agricultural Experiment Station Research Reports

In Kansas, seven to nine million acres of winter wheat are sown annually with grain yields averaging about 40 bu/a. Variety selection and management strategies are critical decisions to maximize wheat yield. Thus, the main objective of this experiment was to evaluate four wheat varieties and their response to six management strategies at three locations in Kansas. These strategies included a farmer practice, enhanced fertility, economical intensification, increased foliar protection, water-limited yield, and increased plant productivity. Locations were pooled based on tillage practice and envi­ronment within Kansas; conventional till in central (Hutchinson and Belleville), and no-till in western ...


Wheat Variety Response To Seeding Rate In Kansas During The 2018–19 Growing Season, R. P. Lollato, L. Molssato, C. Rapolla, G. Zhang, A. Fritz Jan 2019

Wheat Variety Response To Seeding Rate In Kansas During The 2018–19 Growing Season, R. P. Lollato, L. Molssato, C. Rapolla, G. Zhang, A. Fritz

Kansas Agricultural Experiment Station Research Reports

Different wheat varieties might require different seeding densities to maximize yield. Thus, the main objective of this project was to better understand the response of different wheat varieties to different seeding rates. Three field experiments were conducted during the 2017-18 growing season evaluating six wheat varieties subjected to five different seeding rates (0.6, 0.95, 1.3, 1.65, and 2.0 million seeds per acre). Crop was managed from a 70 bu/a yield goal and pests were controlled using commercially available pesticides. We measured final stand and grain yield, and all statistical analyses were performed for relating ...


Intensive Wheat Management For Yield And Quality: The Role Of Variety, Environment, And Management Practices, R. P. Lollato, B. R. Jaenisch, D. Marburger Jan 2019

Intensive Wheat Management For Yield And Quality: The Role Of Variety, Environment, And Management Practices, R. P. Lollato, B. R. Jaenisch, D. Marburger

Kansas Agricultural Experiment Station Research Reports

Management (M), variety (V), and environment (E) greatly influence wheat yield and quality. With the objective of determining the partial influence of V, E, and M, we conducted a field experiment where we imposed four management intensities to five wheat varieties during six site-years in Kansas and Oklahoma. Management intensities were 1) low-input (N fertility for a yield goal of 60 bu/a); 2) high-input (foliar fungi­cide, sulfur and chloride fertilizers, growth regulator, and nitrogen (N) fertility for a yield goal of 100 bu/a); 3) high-input minus fungicide; and 4) high-input minus addi­tional N. We selected commonly ...


Plant Growth Regulators To Decrease Wheat Height In High Fertility Scenarios, F. D. Spolidorio, R. P. Lollato Jan 2019

Plant Growth Regulators To Decrease Wheat Height In High Fertility Scenarios, F. D. Spolidorio, R. P. Lollato

Kansas Agricultural Experiment Station Research Reports

Lodging is a common concern in wheat production, and its intensity depends on many factors including the straw strength of the variety, nitrogen (N) levels, and plant growth regulator (PGR). However, there are limited data exploring how current Kansas wheat varieties respond to PGR applications at different fertility levels. Thus, our objective was to assess the effects of PGR on wheat varieties exposed to different levels of N fertilization. A field trial was established in a split-split-plot design and four replica­tions in two Kansas locations (Great Bend and Ashland Bottoms) during the 2017–18 growing season. Factors evaluated were ...


Wheat Development And Yield As Affected By Era Of Variety Release And In-Furrow Fertilizer, R. E. Maeoka, R. P. Lollato Jan 2019

Wheat Development And Yield As Affected By Era Of Variety Release And In-Furrow Fertilizer, R. E. Maeoka, R. P. Lollato

Kansas Agricultural Experiment Station Research Reports

Limited information exists on the interaction between historical and modern wheat varieties and in-furrow fertilizer. Our objectives were to estimate grain yield and differences in dynamics of biomass accumulation of historical and modern winter wheat varieties as affected by different fertilization practices. Two field trials were established during the 2017–2018 growing season in Kansas. Eight winter wheat varieties released between 1920 and 2016—Kharkof (1920), Scout 66 (1966), Karl 92 (1988), Jagger (1994), Jagalene (2001), Fuller (2006), KanMark (2014) and Larry (2016)—were sown using one of two different fertilizer treatments: either the university recommendation (control with no in-furrow ...


Kansas Field Research 2019 Jan 2019

Kansas Field Research 2019

Kansas Agricultural Experiment Station Research Reports

Research from Kansas State University experiment fields on crop varieties, tillage, irrigation, weed management, and fertilizers.


Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett Jan 2019

Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2008–2018 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 precipitation ...


Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett Jan 2019

Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett

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 wheat-wheat-sorghum-fallow (WWSF), wheat-sorghum-sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9 in. following sorghum, which is about 3 in. more than the average for the second wheat crop in a WWSF rotation. Soil water at sorghum planting was only about 1 in. less for the second sorghum crop compared with sorghum ...


Including Legumes In Wheat-Bermudagrass Pastures, L. W. Lomas, J. L. Moyer Jan 2019

Including Legumes In Wheat-Bermudagrass Pastures, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

Use of legumes in wheat-bermudagrass pastures did not affect summer cow gains in 2018. Forage availability was greater (P < 0.05) where nitrogen (N) alone was used than where crimson clover and ladino clover were used in the Legume system. Estimated for­age crude protein (CP) was similar (P > 0.05) for the Legume and Nitrogen systems.


Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer Jan 2019

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 360 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, 2016, 2017, and 2018. Daily gains of steers that grazed MaxQ fescue, wheat-bermudagrass, or wheat-crabgrass were similar (P > 0.05) in 2010, 2016, 2017, and 2018. 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 ...


Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/Double-Crop Soybean Rotation, D. W. Sweeney, D. Ruiz-Diaz Jan 2019

Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/Double-Crop Soybean Rotation, D. W. Sweeney, D. Ruiz-Diaz

Kansas Agricultural Experiment Station Research Reports

In 2018, adding nitrogen (N) greatly improved average wheat yields with about a 10% increase with knife compared to broadcast application methods. Even though tillage did not affect wheat yields, soybean yield was about 10% greater with no-till.


Southeast Kansas Crop Production Summary – 2018, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin Jan 2019

Southeast Kansas Crop Production Summary – 2018, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the crop production conditions in southeast Kansas in 2018, and the results of the variety testing for corn, soybean, sorghum, sunflower, and wheat.


Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer Jan 2018

Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

MaxQ tall fescue, a wheat-bermudagrass double-crop system, and a wheat-crabgrass double-crop system have been three of the most promising grazing systems evaluated at the Kansas State University Southeast Agricultural Research Center in the past 20 years, but these systems have never been compared directly in the same study. The objective of this study was to compare grazing and subsequent finishing performance of stocker steers that grazed these three systems.


Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas Jan 2018

Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Bermudagrass is a productive forage species when intensively managed. However, it has periods of dormancy and requires proper management to maintain forage quality. Legumes in the bermudagrass sward could improve forage quality and reduce fertilizer usage; however, legumes are difficult to establish and maintain with the competitive grass. Clovers can maintain survival once established in bermudagrass sod and may be productive enough to substitute for some N fertilization. This study was designed to compare dry cow performance on a bermudagrass pasture system that included ladino and crimson clovers (Legume) vs. bermudagrass alone (Nitrogen).


Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/Double-Crop Soybean Rotation, D. W. Sweeney, Dorivar Ruiz Diaz Jan 2018

Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/Double-Crop Soybean Rotation, D. W. Sweeney, Dorivar Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Many crop rotation systems are used in southeastern Kansas. This experiment was designed to determine the long-term effect of selected tillage and N fertilizer placement options on yields of short-season corn, wheat, and double-crop soybean in a rotation.


Crop Production Summary, Southeast Kansas – 2017, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin, D. E. Shoup Jan 2018

Crop Production Summary, Southeast Kansas – 2017, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin, D. E. Shoup

Kansas Agricultural Experiment Station Research Reports

Crop production is dependent on many factors, most notably, environmental conditions during the growing season. Here, we summarize the environmental conditions during the 2017 growing season in comparison to previous years and the historical averages. Information on crop yields is taken from reported values and yields from variety trials in southeast and east central Kansas.


Wheat Development And Yield As Affected By Era Of Variety Release And In-Furrow Fertilizer, R. E. Maeoka, R. P. Lollato Jan 2018

Wheat Development And Yield As Affected By Era Of Variety Release And In-Furrow Fertilizer, R. E. Maeoka, R. P. Lollato

Kansas Agricultural Experiment Station Research Reports

Nutrients play a major role in wheat yield determination; however, limited informa­tion exists on the differential responses of historical and modern varieties to in-furrow fertilizer. Our objectives were to estimate grain yield and differences in agronomic traits of historical and modern winter wheat varieties as affected by different fertilization programs. Two field trials were established during the growing season 2016–2017 (i.e., Ashland Bottoms and Belleville, KS). Seven winter wheat varieties released between 1920 and 2016–Kharkof (1920), Scout 66 (1966), Karl 92 (1988), Jagalene (2001), Fuller (2006), KanMark (2014), and Larry (2016)–were sown using one of ...