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Kansas Agricultural Experiment Station Research Reports

2017

Wheat

Articles 1 - 15 of 15

Full-Text Articles in Life Sciences

Cropping Sequence Influenced Crop Yield, Soil Water Content, Residue Return, And Co2 Efflux In Wheat-Camelina Cropping System, E. Obeng, A. Obour, N. O. Nelson, I. A. Ciampitti, Donghai Wang, E. A. Santos Jan 2017

Cropping Sequence Influenced Crop Yield, Soil Water Content, Residue Return, And Co2 Efflux In Wheat-Camelina Cropping System, E. Obeng, A. Obour, N. O. Nelson, I. A. Ciampitti, Donghai Wang, E. A. Santos

Kansas Agricultural Experiment Station Research Reports

Camelina (Camelina sativa L. Crantz) is a short-seasoned oilseed crop with potential as a fallow replacement crop in dryland wheat (Triticum aestivum) - based cropping systems. Crop rotation management can affect the quality and quantity of crop residue return to the system. In addition, residue has the ability to sequester carbon and can affect plant available water. This study was conducted to investigate the effect of replacing fallow with camelina on crop yield, soil water at wheat planting, soil carbon dioxide (CO2) efflux from treatments, and residue return. Treatments were four rotation schemes, and included wheat-fallow (W-F), wheat-sorghum-fallow (W-S-F), wheat-spring ...


Tillage Intensity In A Long-Term Wheat-Sorghum-Fallow Rotation, A. Schlegel Jan 2017

Tillage Intensity In A Long-Term Wheat-Sorghum-Fallow Rotation, A. Schlegel

Kansas Agricultural Experiment Station Research Reports

This study was initiated in 1991 at the Kansas State University Southwest Research- Extension Center near Tribune, KS. The purpose of the study was to identify the effects of tillage intensity on precipitation capture, soil water storage, and grain yield in a wheat-sorghum-fallow rotation. Grain yields of wheat and grain sorghum increased with decreased tillage intensity in a wheat-sorghum-fallow (WSF) rotation. In 2016, available soil water at wheat and sorghum planting was greater for reduced tillage (RT) than no-tillage (NT) and least for conventional tillage (CT). Averaged across the 16-yr study, available soil water at wheat and sorghum planting was ...


Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag Jan 2017

Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2008 to 2016 at the Kansas State University Southwest Research-Extension Center near Tribune, KS. The purpose of the study was to identify whether more intensive cropping systems can enhance and stabilize production in rainfed cropping systems to optimize economic crop production, more efficiently capture and utilize scarce precipitation, and maintain or enhance soil resources and environmental quality. The crop rotations evaluated were continuous grain sorghum (SS), wheat-fallow (WF), wheat-corn-fallow (WCF), wheat-sorghum-fallow (WSF), wheat-corn-sorghum-fallow (WCSF), and wheat-sorghum-corn-fallow (WSCF). All rotations were grown using no-tillage practices except for WF, which was grown using reduced-tillage. The efficiency of ...


Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel, L. Haag Jan 2017

Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel, L. Haag

Kansas Agricultural Experiment Station Research Reports

A field study initiated in 2006 at the Southwest Research-Extension Center near Tribune, KS, was designed to evaluate the effects of three wheat stubble heights on subsequent grain yields of corn and grain sorghum. Corn and sorghum yields in 2016 were greater than the long-term average. When averaged from 2007 through 2016, corn grain yields were 10 bu/a greater when planted into either high or strip-cut stubble than into low-cut stubble. Average grain sorghum yields were 6 bu/a (but not significantly) greater in high-cut stubble than low-cut stubble. Similarly, water use efficiency was greater for high or strip-cut ...


Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. D. Holman, C. Thompson Jan 2017

Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. D. Holman, C. Thompson

Kansas Agricultural Experiment Station Research Reports

In 1996, an effort began to quantify soil water storage, crop water use, and crop productivity on dryland systems in western Kansas. Research on 4-year crop rotations with wheat and grain sorghum was initiated at the Southwest Research-Extension Center near Tribune, KS. Rotations were wheat-wheat-sorghum-fallow (WWSF), wheatsorghum- sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9 in. following sorghum, which is about 3 in. more than the average for the second wheat crop in a WWSF rotation. Soil water at sorghum planting was only about 1 in. less for the second sorghum crop compared with ...


Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag Jan 2017

Seeding Rate For Dryland Wheat, A. Schlegel, J. D. Holman, L. Haag

Kansas Agricultural Experiment Station Research Reports

Four winter wheat varieties (PlainsGold Byrd, Limagrain T158, Syngenta TAM 111, and WestBred Winterhawk) were planted at five seeding rates (30, 45, 60, 75, and 90 lb/a) in the fall of 2014 and 2015 at Colby, Garden City, and Tribune, KS. The objective of the study was to identify appropriate seeding rates for dryland winter wheat in western Kansas. Averaged across varieties, a seeding rate of 60 lb/a seemed to be adequate at all locations in 2015. However, with higher yields in 2016, a higher seeding rate (75 lb/a) was beneficial. The wheat variety T158 was the ...


Intensive Management Strategies To Close Wheat Yield Gaps In Central Kansas, B. R. Jaenisch, R. Lollato Jan 2017

Intensive Management Strategies To Close Wheat Yield Gaps In Central Kansas, B. R. Jaenisch, R. Lollato

Kansas Agricultural Experiment Station Research Reports

Winter wheat is the most widely sown crop in Kansas, and yields had not surpassed 50 bushels per acre until 2015-16, when average state wheat yield was 57 bushels per acre. However, recent estimates of the long-term winter wheat yield potential in central Kansas indicate that it lies around 75 bushels per acre. A particular crop’s yield gap in a given region is determined by the difference between potential and actual yields. The long-term yield gap in Kansas is approximately 45 bushels per acre, which corresponds to more than 50% of the yield potential. Yield gaps have the potential ...


Optimum Seeding Rate For Different Wheat Varieties In Kansas, R. Lollato, G. Cramer, A. K. Fritz, G. Zhang Jan 2017

Optimum Seeding Rate For Different Wheat Varieties In Kansas, R. Lollato, G. Cramer, A. K. Fritz, G. Zhang

Kansas Agricultural Experiment Station Research Reports

Seeding rate is an important management practice affecting wheat yield. Wheat varieties differ in their tillering capacity and therefore in their yield response to seeding rate. Our objectives were to evaluate the tillering and yield response of different modern wheat varieties to seeding rate. The study was conducted in Hutchinson and Manhattan, KS, during the 2015-16 growing season. Seven wheat varieties (Everest, KanMark, 1863, Joe, Tatanka, Larry, and Zenda) were sown at five different seeding rates (0.6, 0.95, 1.3, 1.65, and 2 million seeds per acre). Tiller number and grain yield were measured in the spring ...


Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/ Double-Crop Soybean Rotation, D. W. Sweeney Jan 2017

Tillage And Nitrogen Placement Effects On Yields In A Short-Season Corn/Wheat/ Double-Crop Soybean Rotation, D. W. Sweeney

Kansas Agricultural Experiment Station Research Reports

In 2016, adding nitrogen (N) greatly improved average wheat yields, but the response to tillage and different N placement methods was minimal. Double-crop soybean yields were unaffected by tillage or the residual from N treatments that were applied to the previous wheat crop.


Crop Production Summary, Southeast Kansas – 2016, Gretchen Sassenrath, L. Mengarelli, Jane Lingenfelser, X. Lin, D. E. Shoup Jan 2017

Crop Production Summary, Southeast Kansas – 2016, Gretchen Sassenrath, L. Mengarelli, Jane Lingenfelser, X. Lin, D. E. Shoup

Kansas Agricultural Experiment Station Research Reports

Crop production in southeast Kansas is summarized from variety trials and research plot experiments conducted at the Southeast Research and Extension Center fields in 2016.


Wheat Production, Gretchen Sassenrath, D. E. Shoup, R. Lollato Jan 2017

Wheat Production, Gretchen Sassenrath, D. E. Shoup, R. Lollato

Kansas Agricultural Experiment Station Research Reports

Wheat production in southeast Kansas is often limited due to high rainfall during the harvest. In some years, this high rainfall can exacerbate disease pressure, especially fungal infections. This study presents results from a test of fungicide applications to control Fusarium head blight (FHB) or scab in poor quality wheat.


Value Of Fungicide Application In Wheat Production In Southwest Kansas, A. J. Foster, R. Lollato, M. Vandeveer, E. D. De Wolf Jan 2017

Value Of Fungicide Application In Wheat Production In Southwest Kansas, A. J. Foster, R. Lollato, M. Vandeveer, E. D. De Wolf

Kansas Agricultural Experiment Station Research Reports

During the past several years, applying fungicide to wheat has become a more common practice. The availability of cost-effective generic fungicides, as well as the positive yield responses often reported, seem to be the potential drivers for the adoption of such practices by producers. We conducted a wheat fungicide trial in Garden City, KS, to answer the following questions: 1) Do fungicide applications pay? And 2) Can remote sensing technology be used to quantify the efficacy of different fungicide products? The study consisted of two wheat varieties sown on September 29, 2015 (Oakley CL, highly resistant to stripe rust; and ...


Winter Annual Grass Control In Winter Wheat, D. E. Peterson, C. Thompson, C. L. Minihan Jan 2017

Winter Annual Grass Control In Winter Wheat, D. E. Peterson, C. Thompson, C. L. Minihan

Kansas Agricultural Experiment Station Research Reports

Winter annual grasses can be difficult to manage in winter wheat. A field experiment was established near Manhattan, KS, in 2016 to evaluate various preemergence and postemergence herbicide treatments for control of downy brome, cheat, and feral rye. Most treatments were less effective for control of downy brome than cheat. Preemergence and fall postemergence treatments provided better downy brome control than spring postemergence treatments. All herbicide treatments evaluated provided excellent control of cheat, but postemergence treatments were slightly better than preemergence treatments. The only herbicide to control rye was Beyond, which provided better control when applied fall postemergence than spring ...


Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti Jan 2017

Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Genotype by seeding rate interaction can play a critical role in understanding wheat (Triticum aestivum L.) yield potential. The objective of this study was to quantify wheat yield response to seeding rates by contrasting genotypes (high- vs. low-tillering). One study was planted at two locations: Ashland Bottoms (dryland and conventional tillage) and at Topeka (irrigated and no-tillage) field research stations (Kansas). The two winter wheat varieties were sown at four different seeding rates (40, 80, 120, and 160 lb/a). Measurements consisted of stand counts, canopy coverage (estimated via imagery collection), determination of early-season gaps in the final stand (missing ...


Wheat Variety Response To Seed Cleaning Method And Pesticide Seed Treatment Following A Growing Season With Severe Infestation Of Fusarium Head Blight, R. Lollato, R. Maeoka, B. R. Jaenisch, A. De Oliveira Silva Jan 2017

Wheat Variety Response To Seed Cleaning Method And Pesticide Seed Treatment Following A Growing Season With Severe Infestation Of Fusarium Head Blight, R. Lollato, R. Maeoka, B. R. Jaenisch, A. De Oliveira Silva

Kansas Agricultural Experiment Station Research Reports

Fusarium head blight (scab) is a common concern in eastern and central Kansas. Wheat seed quality might be compromised following a growing season with severe infestation of scab. Our objectives were to evaluate the effects of variety, seed cleaning method, and seed treatment, on wheat stand establishment and yield following a growing season where scab was severe. A trial was established during the 2015-16 growing season using seed harvested from the 2014-15 growing season, which was characterized by severe infestation of scab. Three commonly grown wheat varieties with differing levels of scab resistance (Everest, SY Wolf, and WB Grainfield) were ...