A5019382211- Crop Yield and Soil Fertility
- Soil Carbon and Nitrogen Dynamics
- Bioenergy crop production and management
- Wheat and Barley Genetics and Pathology
- Turfgrass Adaptation and Management
- Genetics and Plant Breeding
- Agronomic Practices and Intercropping Systems
- Rice Cultivation and Yield Improvement
- Sunflower and Safflower Cultivation
- Research in Cotton Cultivation
- Plant Disease Management Techniques
- Cassava research and cyanide
- Soil Management and Crop Yield
- Soil and Water Nutrient Dynamics
- Plant Pathogens and Fungal Diseases
- Plant Pathogens and Resistance
- Soybean genetics and cultivation
- Growth and nutrition in plants
- Weed Control and Herbicide Applications
- Irrigation Practices and Water Management
- Phosphorus and nutrient management
- Agriculture, Plant Science, Crop Management
- Soil Moisture and Remote Sensing
- Climate change impacts on agriculture
- Cannabis and Cannabinoid Research
Kansas State University
2016-2025
Arkansas Agricultural Experiment Station
2016-2023
Emporia State University
2010
National Student Clearinghouse Research Center
2010
Oregon State University
2010
Colorado State University
2008-2010
Purdue University West Lafayette
2010
Iowa State University
2010
University of Wisconsin–Platteville
2010
Oklahoma State University Oklahoma City
2010
Core Ideas Average sorghum yield advantage was 120% for no tillage over conventional and 55% reduced tillage. wheat 31% 12% Available soil water at planting in profile less than both crops. There a decline time due to increased seasonal temperature. Tillage is among crop management factors that affect yield, profitability, environmental quality. The objective of our study evaluate the effect three long‐term intensities; (CT), (RT), no‐till (NT), on winter ( Triticum aestivum L.) grain...
Core Ideas Grain yield of the second wheat crop was 80% first in WWSF. sorghum 63% WSSF. Four‐year rotations were similar productivity to 3‐yr WSF. Water greater with 4‐yr than continuous wheat. Continuous no‐till did not increase year and yields. Diverse sustain by increasing water improving soil structure. The objective this study compare two winter ( Triticum aestivum L.) grain Sorghum bicolor terms yield, available water, along A field conducted from 1996 through 2015 on a deep silt loam...
Dryland crop rotation systems are sustainable only if there is sufficient water available for profitable production. The objective of our study was to identify potential the central Great Plains and similar semiarid areas that increase soil water, fallow accumulation, efficiency, productivity major crops. conducted from 2000 through 2017 near Tribune, KS. Four summer crops [corn ( Zea mays L.) (CR), grain sorghum Sorghum bicolor (GS), soybean Glycine max (SB), sunflower Helianthus annuus...
Abstract Long‐term selection in maize ( Zea mays L.) favored single‐stalked phenotypes limiting vegetative growth. However, reduced plant densities create conducive environments to the expression of branches called tillers. Tiller has motivated discussions about its yield effect variable environments, but tiller research is lacking for modern corn genotypes. The objectives this study were (a) quantify relative importance management, environment, and interactions on two genotypes; (b)...
Corn ( Zea mays L.) and soybean [ Glycine max (L.) Merr.] constitute a large share of the annual total irrigated planted area in central Great Plains. This study aimed to determine effect limited irrigation on grain yield, water use, profitability corn comparison with two crops commonly grown water‐limited environments (grain sorghum Sorghum bicolor Moench.] sunflower Helianthus annuus L.]). The was conducted at Tribune, KS, from 2001 2008, mean April October rainfall 390 mm. Treatments were...
Measuring soil pH is an important step in assessing the chemical status of a and remediating high low situations. Soil measurements on spatial scale are limited by labor lab analysis costs. A sensor mounted mobile sensing platform may be able to reduce these costs while providing high‐resolution map. The objective this research was evaluate two fields Kansas, one with uniform six different complexes. Real‐time were taken at density 17 points ha −1 compared samples collected depths 0 7.5 15...
Crop plasticity is fundamental to sustainability discussions in production agriculture. Modern corn (Zea mays L.) genetics can compensate yield determinants a small degree, but mechanisms have been masked by breeder selection and plant density management preferences. While tillers are well-known source of cereal crops, the functional trade-offs tiller expression hierarchical formation process unknown. This investigation aimed further dissect consequences on component determination range...
Identifying the most profitable crop rotation for an area is a continuous research challenge. The objective of this study was to evaluate 2‐, 3‐, and 4‐yr limited irrigation corn ( Zea mays L.)‐based rotations grain yield, available soil water, water productivity, profitability in comparison with 1 yr (CC). A field conducted from 2001 through 2010 on deep silt loam near Tribune, KS. consisted four rotations, that is, CC, corn–winter wheat Triticum aestivum L.) (C–W), wheat–grain sorghum...
Core Ideas Summer crop yields were greater when the summer crops follow wheat rather than following a Wheat yield was relatively lower in rotations where two are involved (four‐year rotations) compared with one (three‐year sunflower other Sorghum has potential this environment followed by and corn, that included sorghum (W–GS–F W–GS–C–F) most productive. Crop rotation is proven sustainable cropping system dryland production. However, finding compatible crops, terms of maximizing yield,...
While globally appreciated for reliable, intensification-friendly phenotypes, modern corn (Zea mays L.) genotypes retain crop plasticity potential. For example, weather and heterogeneous field conditions can overcome phenotype uniformity facilitate tiller expression. Such may be of interest in restrictive or otherwise variable environments around the world, where production is steadily expanding. No substantial effort has been made available literature to predict development scenarios, which...
Core Ideas Plasticity of remaining yield components can reduce the impact late season stand losses. Stand reductions as V14 did not result in 1:1 The relative importance component compensation varied by timing and location/hybrid. Hail insurance adjustment procedures for corn ( Zea mays L.) United States prior to 2014 assumed that from V9 through milk stage were linear with reduction on a percentage basis. Other research suggests plants retain some level plasticity past growth stage. Some...
Abstract For sustainable productivity, a winter wheat ( Triticum aestivum L.)–summer crop (corn [ Zea mays L.] or grain sorghum Sorghum bicolor L.])–fallow (W‐SC‐F) cropping system could benefit from optimal stubble cutting height management, but only limited information is available. The objective of this study was to evaluate the effect on subsequent corn and yields, available soil water, water use, precipitation storage efficiency in W‐C‐F W‐S‐F system. This conducted 2006 through 2020 at...
Highlights Later planting and greater site elevation or latitude decreased seasonal growing degree days cotton yield in Kansas. Higher irrigation capacity (rate) usually increased lint yield, which was probably due to early boll load. Strategies for splitting land allocations between high rates dryland did not increase production. Cotton may reduce withdrawals from the Ogallala aquifer, but Kansas season limits Abstract . Precipitation western Great Plains averages about 450 mm, varying...
Abstract Seeding at the optimum rate is among many decisions considered crucial for crop production. The main objective of this research was to evaluate seeding responses popular dryland winter wheat ( Triticum aestivum L.) varieties and determine if variety specific rates were warranted. study conducted from 2015 through 2018 Colby, Garden City, Tribune, KS. response four Byrd, T158, TAM 111 or 114, Winterhawk five (34, 50, 67, 84, 101 kg ha −1 ) studied. effects affected grain yield in all...
Farmer test plots have become a staple for production agriculture. These can range from simple side-by-side demonstration to replicated research study. The rush of harvest often creates challenge harvesting these plots. Yield monitor data were collected field scale in multiple states assess ability measure on-farm research. Grain mass was also measured each plot with weigh wagon or certified scale. variability yield error (standard deviation) not correlated the magnitude (mean). Thus...
Highlights. Seed meter rpm error decreased with increasing planter speed during steady states. Point-row operations could result in up to 10-13 seeds being over- or under-planted. varied from -7.2% 7.9% curve planting transient Abstract. Electric drive seed metering systems have become a common method for singulating row crop seed. These singulation substantially fewer moving parts and can potentially respond more quickly than other mechanisms. However, the accuracy response time of these...
Hemp is a broad term used to describe the many varieties of Cannabis sativa L. that produce less than 0.3% tetrahydrocannabinol (THC). The crop globally significant, but only recently allowed be grown again in United States. Varieties have numerous industrial uses been selected for improved fiber and grain production. However, there no information available regarding adaptability or production these Kansas.
Tillers (commonly termed “suckers”) have lower overall yield contributions in corn (Zea mays L.) than other Poaceae species. Current research evaluating the value of tillers is scarce, particularly under water-limited conditions. This study aims to quantify relationships between tiller, main plant, and full (considering both tiller plant fractions) aboveground biomass yields low density scenarios. Experiments were conducted 2019 growing season at three sites across Kansas (Garden City,...