Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 11 of 11

Full-Text Articles in Physical Sciences and Mathematics

Prioritization Of Scientific Sources Of Water Information: The Effect Knowledge, Beliefs, And Political Identity, Sadie Hundemer Sep 2023

Prioritization Of Scientific Sources Of Water Information: The Effect Knowledge, Beliefs, And Political Identity, Sadie Hundemer

Journal of Applied Communications

Scientists are reported to be more trusted than other information sources; yet, on essential water facts, people sometimes reject what they perceive water scientists to believe in favor of other belief determinants. This study examines the factors that affect the difference in people's stated willingness to reconsider their water beliefs in response to information provided by scientists relative to information provided by other sources. Regression analysis of responses provided by 806 Florida and Georgia residents found water science knowledge to be a consistently strong influencer of the gap in reliance on scientific information providers relative to other sources. This result …


Scarce Water In Site: A Content Analysis Of News Coverage Of The Sites Reservoir Project, Cara Lawson, Richard Austin-Castillo, Lauren Chase Jun 2023

Scarce Water In Site: A Content Analysis Of News Coverage Of The Sites Reservoir Project, Cara Lawson, Richard Austin-Castillo, Lauren Chase

Journal of Applied Communications

Plagued by recent and historic drought, the need for water storage and management solutions in California is apparent. As a potential solution, the Sites Reservoir project offers an opportunity to a state eager to conserve and better manage water. The Sites Reservoir project involves complexities from a variety of standpoints and stakeholder perspectives. This study investigated the frames and sources used by The Sacramento Bee to communicate about the Sites Reservoir project over a 10-year period. The most frequently used frames throughout the dataset were “policy and government” and “water conscious,” and the sources most frequently utilized for information about …


A Scarcity Of Biospheric Values In Local And Regional Reporting Of Water Issues: Media Coverage In The Floridan Aquifer Region, Sadie Hundemer, Debbie Treise, Martha Monroe Jul 2022

A Scarcity Of Biospheric Values In Local And Regional Reporting Of Water Issues: Media Coverage In The Floridan Aquifer Region, Sadie Hundemer, Debbie Treise, Martha Monroe

Journal of Applied Communications

The values invoked by journalists in the reporting of water issues influence public support for water policy and the assessment of water tradeoffs. This qualitative framing analysis of water coverage from six newspapers in the Floridan aquifer region from 2010 to 2018 reveals the values used to stimulate reader engagement on a range of water challenges including weather, residential behavior, agriculture, algae, industry, springs, energy, municipalities, and fecal matter. Results reveal a hierarchy of value frames that prioritizes economics and human health, thereby attending primarily to the motivations of egoistic and social-altruistic individuals. The ecosystem implications of deteriorated water conditions, …


Understanding The Perceptions Of Producers Regarding The Ogallala Aquifer Use: A Survey Report (2022), Jonathan Aguilar, Amariah Fischer, Matthew R. Sanderson Jan 2022

Understanding The Perceptions Of Producers Regarding The Ogallala Aquifer Use: A Survey Report (2022), Jonathan Aguilar, Amariah Fischer, Matthew R. Sanderson

Kansas Agricultural Experiment Station Research Reports

This survey asked producers in the Ogallala aquifer how they view their role in groundwater use, what they see as the consequences of groundwater depletion, and why they believe groundwater should be conserved. Producers were also asked about their worldviews and values. Together, these questions help provide an understanding of the cultural state of the Ogallala aquifer, especially as it pertains to groundwater use.


Electronic Field Trips For Science Engagement: The Streaming Science Model, Jamie Loizzo, Mary J. Harner, Deborah J. Weitzenkamp, Kevin Kent Nov 2019

Electronic Field Trips For Science Engagement: The Streaming Science Model, Jamie Loizzo, Mary J. Harner, Deborah J. Weitzenkamp, Kevin Kent

Journal of Applied Communications

While institutions of higher education work to engage PK-12 youth in STEM (science, technology, engineering, and mathematics) concepts and careers via in-person programming, PK-12 teachers and students face many logistical and access constraints for physically traveling to sites off of school grounds during the school day. Throughout the years, electronic field trips (EFTs) have offered a digital way for schools to engage in meaningful ways with museums, parks, laboratories, and field research sites. In order for EFTs to be effective, they should be cost effective and created collaboratively with teachers, students, subject matter experts, and instructional design and communication professionals. …


Alternative Cropping Systems With Limited Irrigation, A. Schlegel Jan 2016

Alternative Cropping Systems With Limited Irrigation, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

A limited irrigation study involving six cropping systems was initiated at the Southwest Research-Extension Center near Tribune, KS, in 2012. The cropping systems were two annual systems (continuous corn [C-C] and continuous grain sorghum [GS-GS]) and four 2-year systems (corn-sorghum [C-GS]), corn-sunflower [C-SF], corn-winter wheat [C-W], and corn-wheat/double sunflower [C-W/SF]). In 2015, corn yields were lower following corn than other crops while wheat and grain sorghum yields were similar for all rotations. This tended to agree with the 3-year average yields except for average sorghum yields being higher following corn than sorghum. Sunflowers were destroyed by rodents and no yields …


Mobile Drip Irrigation Evaluation In Corn, I. Kisekka, T. Oker, G. Nguyen, J. Aguilar, D. Rogers Jan 2016

Mobile Drip Irrigation Evaluation In Corn, I. Kisekka, T. Oker, G. Nguyen, J. Aguilar, D. Rogers

Kansas Agricultural Experiment Station Research Reports

Mobile Drip Irrigation (MDI) involves attaching driplines to center pivot drops. MDI has potential to eliminate water losses due to spray droplet evaporation, water evapo­ration from the canopy, and wind drift. MDI also may reduce soil water evaporation due to limited surface wetting. A study was conducted with the following objectives: 1) compare soil water evaporation under MDI and in-canopy spray nozzles; 2) evalu­ate soil water redistribution under MDI at 60 inch dripline lateral spacing; 3) compare corn grain yield, water productivity, and irrigation water use efficiency; and 4) compare end-of-season profile soil water under MDI and in-canopy spray at …


Forage Sorghum And Corn Silage Response To Full And Deficit Irrigation, I. Kisekka, J. D. Holman, J. W. Waggoner, J. Aguilar, R. Currie Jan 2016

Forage Sorghum And Corn Silage Response To Full And Deficit Irrigation, I. Kisekka, J. D. Holman, J. W. Waggoner, J. Aguilar, R. Currie

Kansas Agricultural Experiment Station Research Reports

There is limited information on forage sorghum and corn silage yield response to full and deficit irrigation in Kansas. The objective of this study was to generate information on forage sorghum (brown mid-rib hybrids (BMR and non-BMR)) and corn silage yield response to different levels of irrigation as influenced by irrigation capacity in southwest Kansas. Preliminary results indicate the effect of irrigation capacity on forage yield was significant (P = 0.0009) in 2014 but not 2015, probably due to high growing season rainfall received in 2015. Corn silage produced significantly (p<0.05) higher biomass at all irrigation capacities compared to forage sorghum hybrids in 2015. BMR forage sorghum produced significantly lower biomass compared to non-BMR hybrid in both 2014 and 2015 (P<0.05). The highest amounts of forage produced for corn silage, BMR, and non-BMR forage sorghum were 24.6, 17.4, and 21.1 tons/a adjusted to 65%, moisture respectively. Water productivity ranged from 1.0 to 1.4 dry matter tons/a/in. More research is needed under normal and dry years to quantify forage sorghum and corn silage yield and forage quality response to full and deficit irrigation.


Sorghum Yield Response To Water Supply And Irrigation Management, I. Kisekka, F. Lamm, A. Schlegel Jan 2016

Sorghum Yield Response To Water Supply And Irrigation Management, I. Kisekka, F. Lamm, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

Grain sorghum yield, under full and limited irrigation, was evaluated at three locations in western Kansas (Colby, Tribune, and Garden City). The top-end yield under full ir­rigation was 190 bu/a. However, there were no significant differences among irrigation treatments at all the three locations due to the above normal rainfall received during the 2015 growing season. These preliminary results indicate that there is potential to improve grain sorghum yields under limited irrigation. Additionally, best management practices to maximize kernels per head could have the greatest effect on grain yields.


Response Of Drought Tolerant And Conventional Corn To Limited Irrigation, I. Kisekka, F. Lamm Jan 2016

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

Kansas Agricultural Experiment Station Research Reports

The purpose of this study was to evaluate the response of two commercial hybrids (DKC 62-27 DGVT2PRO [drought tolerant trait (DT)] and DKC 62-98 VT2PRO [conventional]) to limited irrigation. Preliminary results from the 2014 and 2015 growing seasons at Southwest Research-Extension Center near Garden City, Kansas, indicate the effect of irrigation capacity on corn yield was significant (P<0.001)for both hybrids. The effect of the drought tolerance trait on yield was not significant (P>0.05)in both years. The effect of the interaction between irrigation capacity and corn hybrid on yield was also not significant (P>0.05) …


Surface Runoff Characteristics From Claypan Soil In Southeastern Kansas Receiving Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski Jan 2015

Surface Runoff Characteristics From Claypan Soil In Southeastern Kansas Receiving Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski

Kansas Agricultural Experiment Station Research Reports

Preliminary results show that two-year average total nitrogen (N) runoff losses and ortho-phosphorus (P) and total P runoff losses in the second year were greater with N-based turkey litter/no-till applications than P-based turkey litter or fertilizer-only applications. Incorporation of turkey litter applied based on N requirements resulted in N and P losses that did not differ from losses from P-based or fertilizer-only treatments. Chemical and statistical analyses of third-year samples will allow for final results and interpretation.