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Southeast Kansas Weather Summary - 2020, G. F. Sassenrath, M. Knapp, X. Lin Jan 2021

Southeast Kansas Weather Summary - 2020, G. F. Sassenrath, M. Knapp, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the weather conditions in southeast Kansas during the 2019/2020 growing season. The wet weather pattern that began in 2019 continued into the spring of 2020, creating adverse conditions for spring crop establishment. Dry conditions dur­ing the summer and fall limited crop and pasture production. Temperatures were very near the 10-year averages at each location.


Annual Summary Of Weather Data For Parsons - 2020, M. Knapp Jan 2021

Annual Summary Of Weather Data For Parsons - 2020, M. Knapp

Kansas Agricultural Experiment Station Research Reports

This report includes the annual summary of precipitation and temperatures from 2020 at the research locations represented in the 2020 Southeast Research and Extension Center Agricultural Research Report.


Weather Information For Tribune, H. D. Bond, J. Slattery Jan 2020

Weather Information For Tribune, H. D. Bond, J. Slattery

Kansas Agricultural Experiment Station Research Reports

Summary of 2019 weather for research conducted at the Tribune field location.


A Pilot Experiment To Replace Missing Rainfall Events Using Soil Moisture Information From The Kansas Mesonet, N. Parker, A. Patrignani Jan 2020

A Pilot Experiment To Replace Missing Rainfall Events Using Soil Moisture Information From The Kansas Mesonet, N. Parker, A. Patrignani

Kansas Agricultural Experiment Station Research Reports

The Kansas Mesonet is a state-of-the-art environmental monitoring network that provides accurate rainfall measurements across Kansas. However, missing rainfall records are common problems in weather stations that rely on tipping bucket rain gauges. In this study, we conducted a pilot experiment to estimate missing rainfall records from root-zone soil moisture information recorded at Kansas Mesonet stations. Soil moisture is recorded at depths of 5, 10, 20, and 50 cm using the Campbell Scien­tific CS655 soil water reflectometer. Hourly rainfall and soil moisture data from mid- August 2017 to mid-May 2018 were taken from three stations (Lakin, Manhattan, and Hays ...


Weather Information For Garden City, 2019, J. Elliott Jan 2020

Weather Information For Garden City, 2019, J. Elliott

Kansas Agricultural Experiment Station Research Reports

Summary of 2019 weather for research conducted at the Garden City field location.


2018–2019 Precipitation Data, Mary Knapp Jan 2020

2018–2019 Precipitation Data, Mary Knapp

Kansas Agricultural Experiment Station Research Reports

Precipitation data for Kansas Agricultural Experiment Stations and fields, 2018-2019.


Annual Summary Of Weather Data For Parsons - 2018, M. Knapp Jan 2019

Annual Summary Of Weather Data For Parsons - 2018, M. Knapp

Kansas Agricultural Experiment Station Research Reports

Annual summary of weather data for Parsons, Kansas, 2018.


Field Station Weather Reports, E. A. Adee, M. Knapp Jan 2019

Field Station Weather Reports, E. A. Adee, M. Knapp

Kansas Agricultural Experiment Station Research Reports

The research program at the Kansas State University East Central Kansas Experiment Field is designed to keep area crop producers abreast of technological advances in agro­nomic agriculture. Specific objectives are to (1) identify top performing varieties and hybrids of wheat, corn, soybean, and grain sorghum; (2) establish the amount of tillage and crop residue cover needed for optimum crop production; (3) evaluate weed and disease control practices using chemical, no chemical, and combination methods; and (4) test fertilizer rates, timing, and application methods for agronomic proficiency and environmental stewardship.

The Kansas River Valley Experiment Field was established to study ...


Correlation Between Mehlich-3 And Ammonium Acetate Extractable Potassium In Kansas Soils, B. Rutter, D. A. Ruiz Diaz Jan 2019

Correlation Between Mehlich-3 And Ammonium Acetate Extractable Potassium In Kansas Soils, B. Rutter, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

The K-State Research and Extension Soil Testing Laboratory has been using Mehlich-3 soil test procedures for phosphorus (P) extraction, and ammonium acetate extraction for potassium (K). Previous research in other states has shown a strong correlation between these two tests for K, but data correlating the two in Kansas soils have been limited. A study was performed on soils from across the state to investigate the relationship between these two methods. A strong positive correlation was observed (r = 0.99) across the wide range of soil types, pH, and fertility conditions represented in the sample set. Linear regression suggests a ...


Correlation Of Sikora And Smith-Mclean- Pratt Soil Buffer Ph Measurements, B. Rutter, D. A. Ruiz Diaz, J. Thomas Jan 2019

Correlation Of Sikora And Smith-Mclean- Pratt Soil Buffer Ph Measurements, B. Rutter, D. A. Ruiz Diaz, J. Thomas

Kansas Agricultural Experiment Station Research Reports

Historically, the K-State Research and Extension Soil Testing Laboratory has used the Smith-McLean-Pratt (SMP) buffer solution to estimate total soil acidity and estimate lime recommendations. The SMP solution contains hazardous chemicals and poses a health risk to lab workers. The Sikora buffer solution was designed as a replacement for SMP and contains no hazardous chemicals. A study was conducted to investigate the relationship between these two buffers in Kansas soils. A strong positive correlation was observed between SMP and Sikora buffer pH measurements. However, linear regression suggests that the relationship is not 1:1 (slope = 0.88). Therefore recommendation equations ...


Changes In Soil Microbiology Under Conventional And No-Till Production During Crop Rotation, C. J. Hsiao, G. F. Sassenrath, L. Zeglin, G. Hettiarachchi, C. Rice Jan 2019

Changes In Soil Microbiology Under Conventional And No-Till Production During Crop Rotation, C. J. Hsiao, G. F. Sassenrath, L. Zeglin, G. Hettiarachchi, C. Rice

Kansas Agricultural Experiment Station Research Reports

Soil microbial activity is important for crop production. Soil microbes are involved in nutrient and water cycling within the soil, and interact with crop plants to provide the basic nutrient and water resources needed for crop production. Claypan soils have unique physical characteristics that impact soil biology. This study explored the tempo­ral changes in soil microbiology in a claypan soil under conventional and no-till produc­tion during a crop rotation of corn/winter wheat/soybean/fallow commonly planted in southeast Kansas. We found soil microbial activity changed more in the top two inches of soil than in the lower ...


Weather Information For Tribune, D. Bond, J. Slattery Jan 2019

Weather Information For Tribune, D. Bond, J. Slattery

Kansas Agricultural Experiment Station Research Reports

Summary of 2018 weather for research conducted at the Tribune field location.


Weather Information For Garden City, 2018, J. Elliott Jan 2019

Weather Information For Garden City, 2018, J. Elliott

Kansas Agricultural Experiment Station Research Reports

Summary of 2018 weather for research conducted at the Garden City field location.


Characterization Of Claypan Soils In Southeastern Kansas, M. A. Mathis Ii, S. E. Tucker-Kulesza, G. F. Sassenrath Jan 2019

Characterization Of Claypan Soils In Southeastern Kansas, M. A. Mathis Ii, S. E. Tucker-Kulesza, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Soil erosion reduces topsoil depth. In areas with a claypan, removal of productive topsoil reduces crop yield where the claypan layer is near the surface. The topsoil and claypan layer each have unique characteristics that impact crop production and within-field variability. To better understand these differences, the soil from an area of low crop yield and high crop yield were collected and laboratory tests were performed to determine the soil classification and undrained shear strength. Understanding the soil properties and the interaction between the topsoil and claypan layers may aid in under­standing the process by which topsoil is being ...


Weather Information For Tribune, H. D. Bond, J. Slattery Jan 2018

Weather Information For Tribune, H. D. Bond, J. Slattery

Kansas Agricultural Experiment Station Research Reports

Summary of weather for research conducted at the Tribune field location.


Electrical Resistivity Tomography Of Claypan Soils In Southeastern Kansas, M. A. Mathis Ii, S. E. Tucker-Kulesza, G. F. Sassenrath Jan 2018

Electrical Resistivity Tomography Of Claypan Soils In Southeastern Kansas, M. A. Mathis Ii, S. E. Tucker-Kulesza, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Claypan soils cover approximately 10 million acres across several states in the central United States. The soils are characterized by a highly impermeable clay layer within the profile that impedes water flow and root growth. While some claypan soils can be productive, they must be carefully managed to avoid reductions to crop productivity due to root restrictions, water, and nutrient limitations. Clay soils are usually resistant to erosion but may exacerbate erosion of the silt-loam topsoil.

Soil production potential is the capacity of soil to produce at a given level (yield per acre). The productive capacity is tied to soil ...


Soil Health Profile In Claypan Soils, C. J. Hsiao, G. F. Sassenrath, C. Rice, G. Hettiarachchi, L. Zeglin Jan 2018

Soil Health Profile In Claypan Soils, C. J. Hsiao, G. F. Sassenrath, C. Rice, G. Hettiarachchi, L. Zeglin

Kansas Agricultural Experiment Station Research Reports

Healthy soil is the foundation of a sustainable agronomic production system. Microorganisms include bacteria (such as actinomycetes), fungi, and protozoa. Soil microorganisms, or microbes, exist in large numbers in soils and are critical for decomposition of organic residues and nutrient recycling. Soils with ample and diverse microbial populations can provide more essential nutrients for crop growth and development. Soil microbial properties are considered one of the major indicators of soil health.

Soil microbial properties can be measured by the activity and the composition of micro-organism populations. Phospholipid fatty acids (PLFA) are the primary components of cell membranes, they can be ...


Exploring The Physical, Chemical And Biological Components Of Soil: Improving Soil Health For Better Productive Capacity, G. F. Sassenrath, K. Davis, A. Sassenrath-Cole, N. Riding Jan 2018

Exploring The Physical, Chemical And Biological Components Of Soil: Improving Soil Health For Better Productive Capacity, G. F. Sassenrath, K. Davis, A. Sassenrath-Cole, N. Riding

Kansas Agricultural Experiment Station Research Reports

“Soil health” is a term that is used to describe soil quality. The U.S. Department of Agriculture’s Natural Resources Conservation Service has defined soil health as “The continued capacity of soil to function as a vital living ecosystem that sustains plants, animals and humans (NRCS 2018).” For a farmer, soil health is the productive capacity of the soil, or the capacity of the soil to produce a crop or pasture. Healthy soils produce more and with better quality.

Soil health is critical for water and nutrient cycling. Soil captures rainwater and stores it for use by plants. Soil ...


Annual Summary Of Weather Data For Parsons – 2017, M. Knapp, L. W. Lomas Jan 2018

Annual Summary Of Weather Data For Parsons – 2017, M. Knapp, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Weather Data for Parsons – 2017


Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry Jan 2018

Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry

Kansas Agricultural Experiment Station Research Reports

Grass reference evapotranspiration (ETo) obtained from weather stations in open locations is often used to estimate irrigation requirements of turfgrass in local or regional urban lawns. However, the environments of urban lawns are often altered by surrounding buildings, trees, etc., to form various microclimates that may alter evapotranspiration (ET). Our research, which placed weather stations in urban lawns and nearby open swards of turfgrass, revealed ETo was 41% lower in residential lawn microclimates than in nearby open turfgrass swards. Less ET within urban lawns than in nearby open swards suggests using standard historical weather data to estimate irrigation ...


Field Station Weather Reports, E. A. Adee, M. C. Knapp Jan 2018

Field Station Weather Reports, E. A. Adee, M. C. Knapp

Kansas Agricultural Experiment Station Research Reports

Summary of weather for research locations for the 2018 Field report.

The research program at the Kansas State University East Central Kansas Experiment Field is designed to keep area crop producers abreast of technological advances in agronomic agriculture. Specific objectives are to (1) identify top performing varieties and hybrids of wheat, corn, soybean, and grain sorghum; (2) establish the amount of tillage and crop residue cover needed for optimum crop production; (3) evaluate weed and disease control practices using chemical, no chemical, and combination methods; and (4) test fertilizer rates, timing, and application methods for agronomic proficiency and environmental stewardship ...


Precipitation Data, M. Knapp Jan 2018

Precipitation Data, M. Knapp

Kansas Agricultural Experiment Station Research Reports

Precipitation for the 2016-2017 growing seasons for experiment stations in Kansas.


Weather Information For Garden City, 2017, J. Elliott Jan 2018

Weather Information For Garden City, 2017, J. Elliott

Kansas Agricultural Experiment Station Research Reports

Summary of weather for research conducted at the Garden City field location.


Long-Term Tillage And Nitrogen Fertilization Effects On Soil Surface Chemistry, A. Obour, J. D. Holman Jun 2017

Long-Term Tillage And Nitrogen Fertilization Effects On Soil Surface Chemistry, A. Obour, J. D. Holman

Kansas Agricultural Experiment Station Research Reports

Long-term crop management practices can affect nutrient cycling and availability to crops. This study examined the long-term effects of nitrogen (N) fertilizer application (N rates of 0, 20, 40, and 60 lb N/a) and tillage intensity (conventional tillage (CT), reduced tillage (RT), and no-tillage (NT)) on soil phosphorus (P), micronutrients, and soil acidity in a dryland winter wheat (Triticum aestivum L.)–sorghum (Sorghum bicolor L.)–fallow cropping system. Results showed soil organic matter (SOM), iron (Fe), and zinc (Zn) concentrations were greater under NT compared to CT or RT. Similarly, NT ( 32 ppm) increased P accumulation in the upper ...


Key Components Of Healthy Soils And Their Role In Crop Production, C. J. Hsiao, Gretchen Sassenrath, Charles Rice, L. Zeglin, G. Hettiarachchi Jan 2017

Key Components Of Healthy Soils And Their Role In Crop Production, C. J. Hsiao, Gretchen Sassenrath, Charles Rice, L. Zeglin, G. Hettiarachchi

Kansas Agricultural Experiment Station Research Reports

Soil health is a confusing term that means different things to different people. To a crop producer, healthy soils are critical for good crop growth and yield. Some soil properties include soil texture, such as the relative percentage of sand, silt and clay; the water content; nutrient levels; organic carbon content; the microbial community; and microbial activity. These properties are determinants of soil health. Our research confirmed that changes in soil management affect the composition and activity of soil microorganisms in surface soils. Greater concentrations of microbial biomass and arbuscular mycorrhizal fungus (AMF) in the no-till agricultural system indicated healthier ...


Measuring Soil Electrical Conductivity To Delineate Zones Of Variability In Production Fields, Gretchen Sassenrath, S. Kulesza Jan 2017

Measuring Soil Electrical Conductivity To Delineate Zones Of Variability In Production Fields, Gretchen Sassenrath, S. Kulesza

Kansas Agricultural Experiment Station Research Reports

Production fields in southeast Kansas are highly variable. Differences in elevation and changes in soil texture contribute to unevenness in plant-available moisture and nutrients, resulting in significant inconsistencies in crop production and yield within a field. These variabilities complicate management and impact the return on investments from different areas of the field. Identification of the regions of variability is possible through several methods, including visual inspection, remote imagery, and yield maps. An additional method of assessing soil variability is by measuring the electrical conductivity of the soil. Measuring apparent electrical conductivity gives a map of the spatial distribution of soil ...


Annual Summary Of Weather Data For Parsons, M. Knapp Jan 2017

Annual Summary Of Weather Data For Parsons, M. Knapp

Kansas Agricultural Experiment Station Research Reports

Annual Summary of Weather Data for Parsons, Kansas, 2016.


Weather Information For Tribune, H. D. Bond, J. Slattery Jan 2017

Weather Information For Tribune, H. D. Bond, J. Slattery

Kansas Agricultural Experiment Station Research Reports

In 2016, annual precipitation of 19.97 in. was recorded, which is 2.07 in. above normal. Six months had above-normal precipitation. April (5.16 in.) was the wettest month. The largest single amount of precipitation was 1.91 in. on August 7. January, the driest month, only recorded a trace of precipitation.


Weather Information For Garden City, 2016, J. Elliott Jan 2017

Weather Information For Garden City, 2016, J. Elliott

Kansas Agricultural Experiment Station Research Reports

Precipitation for 2016 totaled 17.73 in. This was 1.51 in. below the 30-year average of 19.24 in. and followed two years of above normal moisture. April and July 2016 had considerably above average precipitation, causing good summer crop growing conditions. Rainfall diminished after July to 37% of the 30-year-average, resulting in dry conditions for fall wheat planting. Hail was not observed in 2016. Blowing dust was noted on two days in March. The largest daily rainfall events were 1.72 in. on April 16, and 1.68 in. on July 2.


Weather Reports For Research Field Locations, M. Knapp Jan 2017

Weather Reports For Research Field Locations, M. Knapp

Kansas Agricultural Experiment Station Research Reports

Weather Reports for Research Field Locations in Kansas 2016: Ashland Bottoms, Belleville, Colby, Conway Springs, Ellsworth, Hays, Hutchinson, Manhattan, McPherson, Perry and Scandia.