Life Sciences Commons^™

Kansas Field Research 2022

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2020-2022 on field production and management practices for crops in Kansas. Published in 2022 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service.
https://www.ag.k-state.edu/

2022 Western Kansas Agricultural Research Report

Kansas Agricultural Experiment Station Research Reports

Summary of research conducted at western Kansas research stations, including Hays, Garden City, Tribune, and Colby. Topics include corn, cropping and tillage systems, insect control, irrigation, management practices, weather, weed science, and wheat.

A Tribute To Freddie R. Lamm, D. Rogers, J. Aguilar, A. R. Tomlinson

Kansas Agricultural Experiment Station Research Reports

Freddie Lamm, who positively impacted many through his life and career, passed away on May 26, 2022. Kansas State University and the agricultural irrigation research community lost a great contributor to their field. Lamm was the research irrigation engineer at the Northwest Research-Extension Center in Colby, Kansas. He passed away sooner than his family, friends, and colleagues were ready for—before his planned retirement from his remarkable career. View the PDF linked to the right-hand column to learn more about his legacy.

Deficit Irrigation Strategies For Subsurface Drip-Irrigated Alfalfa, F. R. Lamm, R. Reyes-Esteves, K. R. Harmoney

Kansas Agricultural Experiment Station Research Reports

This subsurface drip-irrigated study was conducted from 2020 to 2021 at the Kansas State University Northwest Research-Extension Center near Colby, KS, to evaluate five deficit irrigation strategies for alfalfa. All strategies were irrigated similarly (100% of Evapotranspiration (ET) minus Rain) through the first seasonal cutting. Following the first cutting, treatments were 1) Irrigate to replace 85% ET minus Rain; 2) Irrigate to replace 50% ET minus Rain between Cutting 2 and 3, then 85% ET-Rain; 3) Irrigate to replace 50% ET minus Rain between Cutting 2 and 4, then 85% ET-Rain; 4) Irrigate to replace 70% ET minus Rain between …

Efficient Irrigation Technologies For Corn—A Comparison, F. R. Lamm, D. M. O'Brien

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2016–2021 at the Kansas State University Northwest Research-Extension Center near Colby, KS. Two irrigation systems, subsurface drip irrigation (SDI) and mobile drip irrigation (MDI) were compared for two irrigation capacities equivalent to 0.25 in./day and 0.167 in./day. Irrigation amounts were similar for the two systems when comparing the equivalent capacities, averaging 13.3 and 11.4 inches per acre. When averaged over the six-year period, SDI and MDI corn grain yields were 242.5 and 239.2 bu/a, respectively. Although irrigation amounts for the two systems at an equivalent irrigation capacity were similar, total crop water use was less …

Yield Response To Nitrogen Management In A Corn-Soybean Sequence In North Central Kansas – 2021 Season, A. A. Correndo, O. Lanza Lopez, L. F. A. Almeida, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

The aim of this study was to evaluate the response of corn (Zea maysL.) grain yield to nitrogen (N) fertilizer application and its residual effect on soybean [Glycine max(L.) Merr.] seed yield. During the 2021 growing season, a corn-soybean rotation study was continued at Scandia, KS (USA), evaluating the effect of five N fertilizer rates (0, 53, 107, 161, and 214 lb N/a) applied in corn under both dryland and irrigated conditions. Average corn grain yields ranged from 124 to 147 bu/a for dryland, and from 159 to 203 bu/a for irrigated conditions. However, no significant …

Kansas Fertilizer Research 2021

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 2021 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Servicehttps://www.ag.k-state.edu/

Kansas Field Research 2021

Kansas Agricultural Experiment Station Research Reports

A summary of research conducted in 2019-2020 on field production and management practices for crops in Kansas. Published in 2021 from the Kansas State University Agricultural Experiment Station and Cooperative Extension Service https://www.ag.k-state.edu/

Testing Irrigated Cotton Production, J. Aguilar, R. S. Currie, D. Tomsicek, L. Haag, S. Duncan

Kansas Agricultural Experiment Station Research Reports

Cotton research was initiated in Garden City, KS, which is the northern rim of the typical cotton production area. Initial results showed that with specific seed varieties and strategic irrigation management, cotton could be grown and provide decent yield in this region. There is still additional research that needs conducted, particularly with regards to germination and seeding rates.

Weed Management And Soybean Yields As Influenced By Row Width And Post-Emergent Herbicide Application Timing, S. R. Duncan, E. A. Adee

Kansas Agricultural Experiment Station Research Reports

Irrigated soybeans were grown in 2018 and 2019 at the Kansas River Valley Experi­ment Field near Rossville, KS. Soybeans were planted in 30-inch or 15-inch rows and a standard pre-emergent herbicide was applied. Planting dates were May 11 and June 4 in 2018 and 2019, respectively. The post-emergent herbicide was applied at approxi­mately 21 or 35 days following soybean planting (DAP). Weed control and crop injury were visually evaluated approximately every seven days following herbicide application. Yields, moisture, and test weights were calculated from the center two rows in 30-inch plots and four rows in 15-inch plots after combine harvest. …

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 Servicehttps://www.ag.k-state.edu/.

Use Of A Fungicide To Reduce Stomatal Conductance For Production Of Sweet Corn Planted At Different Populations With Limited Irrigation, D. W. Sweeney, M. B. Kirkham

Kansas Agricultural Experiment Station Research Reports

Sweet corn in 2018 was affected by irrigation, plant population, and a fungicide applied for stomatal control. Even though measured stomatal conductance was unaffected and no disease pressure was noted, applying fungicide at V6 more than doubled the number of harvested ears per acre and per plant, but an additional application at R1 did not increase harvested ears. Applying 1 inch of irrigation at the VT growth stage resulted in approximately 20% greater number of harvested ears per acre and ears per plant, but did not increase fresh weight. Under these dry conditions, increasing plant population tended to decrease harvested …

Mobile Drip Irrigation For Water Limited Crop Production: Initial Results, J. Aguilar, T. Oker, I. Kisekka

Kansas Agricultural Experiment Station Research Reports

The farmers within the Ogallala aquifer desire to extend the usable life of this aquifer despite experiencing diminishing well capacities, thus the quest for more efficient irrigation application technologies. Mobile drip irrigation (MDI), which integrates drip lines onto a mechanical irrigation system such as a center pivot, has attracted their attention lately. The concept is that by applying water along crop rows, it was hypothesized that MDI could eliminate water losses due to spray droplet evaporation, wind drift, and reduce soil evaporation due to limited surface wetting especially before canopy closure. A study was conducted with the following objectives: 1) …

Use Of A Fungicide To Reduce Stomatal Conductance For Production Of Sweet Corn Planted At Different Populations With Limited Irrigation, D. W. Sweeney, M. B. Kirkham

Kansas Agricultural Experiment Station Research Reports

Sweet corn is a potential value-added, alternative crop for producers in southeastern Kansas. Corn responds to irrigation, and timing of water deficits can affect yield components. Even though large irrigation sources, such as aquifers, are lacking in southeastern Kansas, supplemental irrigation could be supplied from the substantial number of small lakes and ponds in the area. However, this may not be enough to improve the water use of the plant. Reducing stomatal conductance and adjusting seeding rate may also help reduce water stress and/or improve water use efficiency. The objective of this study was to determine the effect of limited …

Irrigation And Tillage Management Effects On Canopy Formation In Corn, R. M. Aiken, F. Lamm, A. A. Aboukheira

Kansas Agricultural Experiment Station Research Reports

Effects of canopy formation and function are frequently represented in irrigation management models by crop coefficients, which can be used to calculate expected crop water requirements. Soil tillage alters the micro-environment of a developing corn canopy. The objective of this study was to evaluate irrigation capacity and tillage effects on seasonal changes in maize canopy and above-ground biomass productivity. Leaf area index (LAI) and above-ground biomass (AGB) were quantified by non-destructive methods during four growing seasons for corn under two irrigation capacities (1 in./4 days or 1 in./8 days) and three tillage regimes (no-tillage (NT), strip tillage (ST), or conventional …

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 …

Grain Sorghum Yield Response To Water Availability, J. P. Broeckelman, G. J. Kluitenberg, K. Roozeboom, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Yield effects of irrigation on sorghum and corn were compared, focusing only on the grain sorghum phase. Average water use for irrigation was 22 in., and dryland sorghum used 17 in. Average yields based on 12.5% grain moisture for dryland and irrigated sorghum were similar, with 138 bu/a for the irrigated and 142 bu/a for the dryland environment. Irrigated sorghum yields were similar, but in dryland, the Pioneer 84G62 hybrid yielded 149 bu/a, a 10 bu/a increase over Pioneer 84Y50 and DKS 53-67 hybrids, which yielded 139 bu/a and 138 bu/a, respectively. Although there was a difference in the yield …

Grain Sorghum Yield Response To Water Availability, J. P. Broeckelman, E. A. Adee, G. J. Kluitenberg, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Yield effects of irrigation on sorghum and corn were compared, but this report is merely focused on the sorghum phase of the crop rotation. Mean yield for irrigated sorghum was 168 bu/a, whereas dryland yield was 145 bu/a. The latter represents a yield improvement of 24 bu/a, an increase of approximately 2 bu/a per unit (in.) of water applied (considering a total of 11 in. of water applied in the irrigation block).

The irrigated sorghum used a mean of 7.8 in. more water than the dryland, which suggests that the dryland sorghum consumed 3.4 in. more water from the soil …

Large-Scale Dryland Cropping Systems, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

A large-scale dryland cropping systems research and demonstration project at the Southwest Research-Extension Center near Tribune, Kansas, evaluated two summer crops (corn and grain sorghum) along with winter wheat in crop rotations varying in length from 1 to 4 years. The rotations were continuous grain sorghum, wheat-fallow, wheat-corn-fallow, wheat-sorghum-fallow, wheat-corn-sorghum-fallow, and wheatsorghum- corn-fallow. The objective of the study is to identify cropping systems that enhance and stabilize production in rain-fed locations to optimize economic crop production. Averaged across the past 7 years, wheat yields ranged from 22 to 25 bu/a and were not affected by length of rotation. Corn and …

Response Of Drought Tolerant And Conventional Corn To Limited Irrigation, I. Kisekka, F. Lamm, J. D. Holman

Kansas Agricultural Experiment Station Research Reports

With declining water levels in the Ogallala aquifer, many wells cannot supply peak irrigation water needs for corn. Emerging drought-tolerant (DT) corn hybrids could help farmers maintain yield with limited capacity wells. A knowledge gap exists comparing transgenic DT and conventional corn hybrids in yield response to water level. The purpose of this study was to compare yield, yield components, water productivity, and irrigation water use efficiency response of DT corn with cspB (DKC 6267 DGVT- 2PRO) transgene trait and conventional corn hybrid (DKC 62-98 VT2PRO) with similar maturity to full and limited irrigation. Preliminary results from the 2014 growing …

Nitrogen And Phosphorus Fertilization Of Irrigated Corn, A. Schlegel, H. D. Bond

Kansas Agricultural Experiment Station Research Reports

(Abstract only. Link to: http://newprairiepress.org/kaesrr/vol1/iss3/7/)
Article is nearly identical to Long-Term Nitrogen and Phosphorus Fertilization of Irrigated Corn, previously published in Kansas Fertilizer Research 2015, included in this PDF.

Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated corn in western Kansas. In 2014, N applied alone increased yields 58 bu/a, whereas P applied alone increased yields only 12 bu/a. Nitrogen and P applied together increased yields up to 152 bu/a. This is slightly above the 10-year average, when N and P fertilization increased corn yields up to 146 bu/a. Application …

Nitrogen And Phosphorus Fertilization Of Irrigated Grain Sorghum, A. Schlegel, H. D. Bond

Kansas Agricultural Experiment Station Research Reports

(Abstract only. Link to:http://newprairiepress.org/kaesrr/vol1/iss3/6/) Article is nearly identical to
Long-Term Nitrogen and Phosphorus Fertilization of Irrigated Grain Sorghum, previously published in Kansas Fertilizer Research 2015, included in this PDF.

Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated grain sorghum in western Kansas. In 2014, N applied alone increased yields 49 bu/a, whereas N and P applied together increased yields up to 81 bu/a. Averaged across the past 10 years, N and P fertilization increased sorghum yields up to 73 bu/a. Application of 40 lb/a N (with P) was …

Southwest Research-Extension Center Field Day 2014

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research-Extension Center, Field Day 2011

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research-Extension Center, Field Day 2010

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research-Extension Center, Field Day 2009

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research-Extension Center, Field Day 2008

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research-Extension Center: Another 50 Years Of Progress (1957-2007)

Kansas Agricultural Experiment Station Research Reports

The Garden City Branch Experiment Station was established in 1907. The mission was to serve the people of western Kansas by developing new knowledge and technology for agriculture. The current review will focus mainly on the second 50 years of the station’s history.

Southwest Research-Extension Center, Field Day 2007

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Southwest Research–Extension Center, Field Day 2006

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.