Soil Phosphorus Fractions After Long-Term Fertilizer Placement In Different Kansas Soils,
2020
Kansas State University
Soil Phosphorus Fractions After Long-Term Fertilizer Placement In Different Kansas Soils, M. J. Coelho, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Phosphorus (P) fertilizer placement can affect the long-term dynamics and forms of P, and the overall soil P pools. These changes can vary by soil type, and affect P uptake and use efficiency by crops. The objective of this study was to evaluate the changes in the labile P fractions in three Kansas soil types under P fertilizer placements (broadcast versus deep band) after ten years of crop rotation. Three field studies were conducted at Scandia, Ottawa, and Manhattan. Three treatments were evaluated: 1) a control with no P fertilizer application and two fertilizer treatments (80 lb P2O …
Fertilizer Source And Rate Affect Sulfur Uptake And Yield Response In Corn,
2020
Kansas State University
Fertilizer Source And Rate Affect Sulfur Uptake And Yield Response In Corn, T. E. Husa, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
With sulfur deficiencies being found throughout Kansas, the evaluation of sulfur fertilization and plant uptake are vital to optimize corn production. The objective of this study was to evaluate the effect of application rates of sulfur on yield and uptake in corn. Nutrient concentrations in corn biomass and grain were evaluated at the Kansas River Valley Experiment Field at Rossville, KS, in 2019. Five treatments were evaluated, including a control with no sulfur and no nitrogen (N), and four fertilizer treatments with 180 lb of nitrogen and four rates of sulfur fertilizer (0, 30, 50, and 200 lb S/a). The …
Relationships Between The Haney H3a And Conventional Soil Tests For Phosphorus And Potassium In Kansas Soils,
2020
Kansas State University
Relationships Between The Haney H3a And Conventional Soil Tests For Phosphorus And Potassium In Kansas Soils, E. B. Rutter, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
The Haney H3A soil test procedure has gained popularity in recent years for soil health evaluation and has been used in some circles to adjust fertilizer management practices. However, data relating this test to current soil tests, relative crop yield, or total nutrient uptake are nonexistent in Kansas soils. The objective of this study is to evaluate the correlation between H3A soil test phosphorus (P) and potassium (K) with soil tests currently used in Kansas (e.g. Mehlich-3). Soils from a nitrogen response study were extracted using both Mehlich-3 and H3A (version 4) soil test procedures. Mehlich-3 and Haney extractable P …
Cation Exchange Resins As Indicator Of In-Season Potassium Supply For Soybean In Kansas,
2020
Kansas State University
Cation Exchange Resins As Indicator Of In-Season Potassium Supply For Soybean In Kansas, D. A. Charbonnier, M. J. Coelho, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
The use of ion-exchange resins to measure soil nutrient availability has potential applications for fertilizer recommendations. The objective of this study was to evaluate the relationship between potassium (K) adsorption by cation exchange resins (CER) and K uptake by soybean in field conditions. The study was conducted at two locations in Kansas during 2019. Two treatments were selected to evaluate the CER. Treatments included a check (0 lb K2O/a) and a high K rate with 150 lb K2O/a applied pre-plant and incorporated. The Plant Root Simulator (PRS, Western Ag Innovations, Saskatchewan, Canada) was used as an …
Response To Mixing Wheat Seed With Fertilizer In The Drill At Planting,
2020
Kansas State University
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 mixed with …
Kansas Fertilizer Research 2020,
2020
Kansas State University
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/.
An Efficient Stocking Strategy For Grazing Replacement Heifers,
2020
Kansas State University
An Efficient Stocking Strategy For Grazing Replacement Heifers, Keith R. Harmoney, John R. Jaeger
Kansas Agricultural Experiment Station Research Reports
Even though Kansas native rangelands often have steep slopes or shallow soils not conducive to many other uses other than livestock grazing, native rangeland and perennial grassland acres in Kansas have been declining. Cropland acreage over this same time frame has increased, and rangelands have also become more fragmented by small ranchettes and urbanization. Producers may be looking to increase production efficiency on a shrinking forage land base. The use of intensive early stocking (IES) is one of the most efficient stocking strategies to produce beef on rangeland acres. The IES strategy has been widely used in eastern Kansas and …
Using Modified Intensive Early Stocking For Cow/Calf Production,
2020
Kansas State University
Using Modified Intensive Early Stocking For Cow/Calf Production, Keith R. Harmoney, John R. Jaeger
Kansas Agricultural Experiment Station Research Reports
Intensive early stocking (IES) was introduced nearly a half century ago in eastern Kansas and has since been adopted as a major management tool to increase animal production, efficiency of production, and economic return on tallgrass rangelands. These increases have come almost exclusively by using IES with young stocker animals. Intensive early stocking and its gains have been proven effective repeatedly in published research. A similar modified IES (MIES) system has increased production efficiency of stocker animals on western Kansas rangelands. Perennial grassland acres for cattle production, as well as cattle numbers, are declining. Using management practices that mimic the …
Saline Experimental Range Dormant Season Wildfire: Short-Term Effect On Forage Production And Plant Composition,
2020
Kansas State University
Saline Experimental Range Dormant Season Wildfire: Short-Term Effect On Forage Production And Plant Composition, Keith R. Harmoney
Kansas Agricultural Experiment Station Research Reports
Rangeland wildfires in the southern plains may occur any time of year, but the low humidity, increasing temperatures, and dry and abundant fuel load of late winter and early spring can result in greater wildfire occurrence and severity. Fires that occur before the growing season remove standing residual vegetation and greatly reduce litter cover, so the soil surface may be left bare for several weeks or months before the onset of new pasture growth. Exposure of plant buds to cold temperatures during dormancy, soil water evaporation, and soil crusting from the force of falling precipitation and puddling may lead to …
Roundup 2020: Agricultural Research Center - Hays,
2020
Kansas State University Libraries
Roundup 2020: Agricultural Research Center - Hays
Kansas Agricultural Experiment Station Research Reports
Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center - Hays. The 2020 program is the 106th staging of Roundup. The purpose is to communicate timely, applicable research information to producers and extension personnel.
Including Legumes In Bermudagrass Pastures,
2020
Kansas State University
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 a 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). Use of legumes in wheat-bermudagrass pastures did …
Timing Of Side-Dress Applications Of Nitrogen For Corn In Conventional And No-Till Systems,
2020
Kansas State University
Timing Of Side-Dress Applications Of Nitrogen For Corn In Conventional And No-Till Systems, D. W. Sweeney, D. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Corn yield and yield components were affected by tillage and nitrogen (N) side-dress application options in 2019. Average corn yields were 15% greater with conventional tillage than with no-till. Yields were improved by either splitting N rate between pre-plant and side-dress at the V10 growth stage or adding additional side-dress N as compared with applying 150 lb/a pre-plant.
Pre-Plant Nitrogen Rate And Application Method And Side-Dress Nitrogen Rate Effects On No-Till Corn Grown On A Claypan Soil,
2020
Kansas State University
Pre-Plant Nitrogen Rate And Application Method And Side-Dress Nitrogen Rate Effects On No-Till Corn Grown On A Claypan Soil, D. W. Sweeney, D. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Average corn yield in 2019 was increased by 14 bu/a with knife application of pre-plant nitrogen (N) fertilizer compared with broadcast application. Applying N more than doubled yield of corn grown without N. In general, applying side-dress N increased yields compared to yields obtained with only pre-plant applications.
Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue,
2020
Kansas State University
Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer
Kansas Agricultural Experiment Station Research Reports
Tall fescue production was measured during the second year of a study with locations started in fall of 2016 and fall of 2017. In the second year at both sites, phosphorus (P) fertilization rate did not affect harvest yields. Applying nitrogen (N) in late fall or late winter resulted in greater spring yields than applying N in spring or not applying N. However, fall harvest yields at Site 1 in 2018 were greater without N, but were greater with spring N application at Site 2 in 2019. In both site-years, the second-year tall fescue total yield rank as affected by …
Response Of Soybean Grown On A Claypan Soil In Southeastern Kansas To The Residual Of Different Plant Nutrient Sources And Tillage,
2020
Kansas State University
Response Of Soybean Grown On A Claypan Soil In Southeastern Kansas To The Residual Of Different Plant Nutrient Sources And Tillage, D. W. Sweeney, P. Barnes, G. Pierzynski
Kansas Agricultural Experiment Station Research Reports
The residual from previous high-rate turkey litter applications, which were based on nitrogen (N) requirements of the previous grain sorghum crop, increased 2019 soybean yield more than that obtained from the residual of phosphorus (P)-based turkey litter applications (low rate) or the control. Even though early soybean growth was unaffected by residual treatments, the dry matter production at the R6 growth stage was greater with N-based litter application than with P-based applications or the control.
Effect Of Burning And Tillage Options On Yields In A Continuous Wheat-Double-Crop Soybean Rotation,
2020
Kansas State University
Effect Of Burning And Tillage Options On Yields In A Continuous Wheat-Double-Crop Soybean Rotation, D. W. Sweeney
Kansas Agricultural Experiment Station Research Reports
Double-crop soybean yields during the first two years of this study have not been affected by management of previous wheat straw practices by burning or tillage done before planting. However, by the second year of the study, subsequent wheat yields were 41% greater where the wheat residue had been burned the previous year.
Southeast Kansas Crop Production Summary - 2019,
2020
Kansas State University
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.
Corn Date Of Planting And Depth,
2020
Kansas State University
Corn Date Of Planting And Depth, G. F. Sassenrath, L. Mengarelli, X. Lin
Kansas Agricultural Experiment Station Research Reports
The exceptionally wet weather in 2019 impacted corn yield. Excessive rainfall reduced corn emergence and plant stand. Many production fields were replanted due to poor stand from flooding. In this study, corn that was planted too shallow (1 inch) or too deep (3 inches) had less yield than that planted at 2-inch depth. The best yield was observed in the corn planted on April 16, 2019. The results from this record wet year were different from previous years, when early planted corn had higher yields.
Southeast Research And Extension Center Agricultural Research 2020,
2020
Kansas State University Libraries
Southeast Research And Extension Center Agricultural Research 2020
Kansas Agricultural Experiment Station Research Reports
Research report for the Southeast Research and Extension Center, Kansas State University, 2020
A Pilot Experiment To Replace Missing Rainfall Events Using Soil Moisture Information From The Kansas Mesonet,
2020
Kansas State University
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) of …
