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Full-Text Articles in Life Sciences

Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Manhattan, Ks, In 2021, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Andrew Euler, Ike Bahr, Brian Owuoche Jan 2023

Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Manhattan, Ks, In 2021, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Andrew Euler, Ike Bahr, Brian Owuoche

Kansas Agricultural Experiment Station Research Reports

Hemp has garnered interest as a potential crop that is not constrained by the typical food, feed, and fuel market channels. Although hemp varieties are available for the production of either grain, fiber, or both (dual-purpose: both grain and fiber) markets, little research-based information is available on hemp growth and water use in Kansas environments. In 2019, Kansas State University researchers began conducting experi­ments to characterize hemp growth, nutrient uptake, and soil water depletion at three locations representing the precipitation gradient across Kansas. In 2021, one fiber and one grain variety were evaluated with and without fertilizer nitrogen. Soil water …


Nutrient Management Strategies To Control Broomsedge Infestation And Improve Yield And Quality Of Tall Fescue Hayfields, Junior I. Yasuoka, Dale Helwig, Wendie Powell, Jaymelynn K. Farney, Gretchen F. Sassenrath, Bruno C. Pedreira Jan 2023

Nutrient Management Strategies To Control Broomsedge Infestation And Improve Yield And Quality Of Tall Fescue Hayfields, Junior I. Yasuoka, Dale Helwig, Wendie Powell, Jaymelynn K. Farney, Gretchen F. Sassenrath, Bruno C. Pedreira

Kansas Agricultural Experiment Station Research Reports

A study in tall fescue hayfields infested with broomsedge and bluestem was conducted at four locations in southeast Kansas. The purpose of this study was to evaluate how phosphorus, nitrogen, and potassium fertilization affect yield, forage quality, and broomsedge/bluestem control in tall fescue hayfields. This trial will be repeated in 2023.


Impact Of Lime, Phosphorus, And Potassium On Yield And Forage Quality On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira Jan 2023

Impact Of Lime, Phosphorus, And Potassium On Yield And Forage Quality On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira

Kansas Agricultural Experiment Station Research Reports

Native meadows are frequently harvested for hay in southeast Kansas to produce forage for winter use. However, the low soil fertility associated with nutrient removal has resulted in limited yield potential and broomsedge infestation. This study evaluated the effect of phosphorus, potassium, and lime on the forage yield and quality in a native meadow. Our results indicated that P and K fertilization contributes to improving yield and quality on native meadows in southeast Kansas. This study will be repeated in 2023, including broomsedge measurements.


Impact Of Stubble Heights On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira Jan 2023

Impact Of Stubble Heights On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira

Kansas Agricultural Experiment Station Research Reports

Management practices affect hay production in native meadows. The objective of this study was to evaluate how stubble heights affect forage yield and quality in a native meadow. Prescribed spring burns contribute to improving forage quality. Setting the stubble height at 3 inches resulted in high forage quality and had a low yield impact.


Early Soybean Planting In A Water-Limited Growing Season, Sylvia R.G. Moraes, Bruno C. Pedreira, Vaishalai Sharda, Rodrigo B. Onofre, Gretchen F. Sassenrath Jan 2023

Early Soybean Planting In A Water-Limited Growing Season, Sylvia R.G. Moraes, Bruno C. Pedreira, Vaishalai Sharda, Rodrigo B. Onofre, Gretchen F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Appropriate management, with a longer growing season during reproductive growth stages, can increase biomass and yield in soybean. Our objective was to determine the impact of three planting dates, two seed populations, and three maturity groups on grain yield in southeast Kansas. However, due to the severe drought in 2022, with a total rainfall of 18.84 inches during the soybean growing season (55% lower than the 10-yr average), the growing conditions were very limited, resulting in an average yield of 1.7 bu/a.


Yield And Forage Quality On Native Meadows As Affected By Burn And Fertilization Management, Junior I. Yasuoka, Dale Helwig, Walter H. Fick, Bruno C. Pedreira Jan 2023

Yield And Forage Quality On Native Meadows As Affected By Burn And Fertilization Management, Junior I. Yasuoka, Dale Helwig, Walter H. Fick, Bruno C. Pedreira

Kansas Agricultural Experiment Station Research Reports

Native meadows are widely used by producers in southeast Kansas. However, there are few studies about management practices to improve agronomic performance in southeast Kansas. This study evaluated the spring burn effect combined with the application of lime, nitrogen, phosphorus, and potassium on yield and forage quality in native meadows. Yield and forage quality on native meadows were not affected by lime application, or P and K fertilization in the first year of the study. However, N fertilization increased yield, crude protein, and total digestible nutrients when associated with spring burn.


2023 Southeast Research And Extension Center Agricultural Research Report, J. K. Farney Jan 2023

2023 Southeast Research And Extension Center Agricultural Research Report, J. K. Farney

Kansas Agricultural Experiment Station Research Reports

The 2023 Southeast Research and Extension Center Agricultural Research report includes research conducted in the areas of beef cattle management, cropping systems, and forage crops. Topics include various grazing and nutrient input for steers and heifers; wheat, soybean, and corn production practices and results, as well as soil health practices; and burning and nutrient practices along with efforts for improvement of native and tall fescue range grasses.


Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Three Locations In Kansas In 2022, Kraig Roozeboom, Jason Griffin, Scott Dooley, Gerard Kluitenberg, Dorivar Ruiz Diaz Jan 2023

Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Three Locations In Kansas In 2022, Kraig Roozeboom, Jason Griffin, Scott Dooley, Gerard Kluitenberg, Dorivar Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Hemp has garnered interest as a potential crop that is not constrained by the typical food, feed, and fuel market channels. Although hemp varieties are available for either grain, fiber, or both (dual-purpose: both grain and fiber) markets, little information is available on hemp growth and water use in Kansas environments. Experiments were conducted at three locations representing the precipitation gradient across Kansas in 2022 to characterize hemp growth, nutrient uptake, and soil water depletion. One fiber and one grain variety were evaluated with and without fertilizer nitrogen at Manhattan, Haysville, and Scandia, KS. Both non-irrigated and fully irrigated plots …


Chloride Fertilization’S Impacts On Kansas Winter Wheat Grain Yield During 2021-2022, Luiz O. Pradella, Jorge R. Soler, Romulo P. Lollato Jan 2023

Chloride Fertilization’S Impacts On Kansas Winter Wheat Grain Yield During 2021-2022, Luiz O. Pradella, Jorge R. Soler, Romulo P. Lollato

Kansas Agricultural Experiment Station Research Reports

Previous work suggests that wheat can respond to chloride fertility in Kansas and other regions, but this response depends on Cl availability and the wheat variety. In this study, we aimed to identify and quantify the effects of chloride fertilizer application in different areas and winter wheat varieties across Kansas. Sixteen field experiments were conducted during the 2021–2022 growing season. All experiments were conducted in a split-plot design with Cl fertility levels as whole plot (0 or 20 lb Cl/a) and wheat variety as subplots, with either three or four replicates. One protocol evaluated 24 winter wheat varieties in three …


Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Two Locations In Kansas In 2020, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Jared Petz, Matthew Nielsen, Andrew Euler Jan 2021

Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Two Locations In Kansas In 2020, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Jared Petz, Matthew Nielsen, Andrew Euler

Kansas Agricultural Experiment Station Research Reports

Some crop producers are considering hemp as an alternative to the typical crops grown in the region. Hemp is viewed as a crop to potentially access new markets. Two of those potential markets are hemp grain and fiber. Little information is available for this region about production management for hemp intended for those markets. Experiments were planted in 2020 at Manhattan, Haysville, and Colby, KS, to characterize plant growth, nutrient uptake, and soil water depletion. Results illustrated typical biomass and nutrient uptake patterns. Half of the total biomass was accumulated by 2,200 growing degree days (GDD), but accumulation continued until …


Evaluation Of Warm Season Annual Forages For Livestock: Biomass And Cost Of Production, J. K. Farney, M. E. Reeb, Z. T. Buessing, K. Malone, G. F. Sassenrath Jan 2021

Evaluation Of Warm Season Annual Forages For Livestock: Biomass And Cost Of Production, J. K. Farney, M. E. Reeb, Z. T. Buessing, K. Malone, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Seventeen warm season annual forage options were evaluated as livestock feed to be grazed, hayed, ensiled, or left as a cover crop. Treatments were planted in mid-May and terminated in late September with one harvest for silage, two hay cuttings, and three grazing rotations. One additional treatment was unharvested to serve as a cover crop. Biomass production and cost to produce final outputs were determined. Even with restricted rainfall during the summer months in 2020, the growth for the chosen forage options was at least 1,500 lb of dry matter (DM) per acre, with the exception of sun­flowers that had …


Tiller Contributions To Low-Density Corn Biomass And Yield, R. Veenstra, C. Messina, L. Haag, P. V. Vara Prasad, I. A. Ciampitti Jan 2020

Tiller Contributions To Low-Density Corn Biomass And Yield, R. Veenstra, C. Messina, L. Haag, P. V. Vara Prasad, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Tillers (commonly termed “suckers”) have lower overall yield contributions in corn (Zea maysL.) than in other Poaceae species. Current research evaluating the value of tillers in corn is scarce, particularly under water-limited conditions. This study aims to quantify relationships between tiller, main plant, and full (considering both tiller and main plant fractions) plant aboveground biomass and yields of corn under low plant density scenarios. Experiments were conducted in the 2019 growing season at three sites across Kansas (Garden City, Goodland, and Manhattan) evaluating two tiller-prone corn hybrids common in this region (P0805AM and P0657AM) at two plant densities …


Determining The Effects Of Tryptophan Biomass On Growth Performance Of 25- To 50-Lb Nursery Pigs, M. R. Wensley, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband, K. D. Haydon Jan 2019

Determining The Effects Of Tryptophan Biomass On Growth Performance Of 25- To 50-Lb Nursery Pigs, M. R. Wensley, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband, K. D. Haydon

Kansas Agricultural Experiment Station Research Reports

A total of 315 barrows (DNA; 200 × 400; initially 24.9 lb) were used in a 21-d growth trial evaluating the effects of feeding TRP Pro (CJ America-Bio, Downers Grove, IL) as a source of Trp on nursery pig performance. Pigs were weaned at approximately 21 d of age, placed in pens based on initial body weight (BW), and fed common starter diets for 21 d. On d 21 after weaning, considered d 0 of the study, pigs were weighed and pens were allotted to 1 of 4 dietary treatments with 5 pigs per pen and 15 or 16 pens …