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- IGC Proceedings (1997-2023) (13)
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Articles 1 - 30 of 42
Full-Text Articles in Life Sciences
Use Of Biomass From Reed Canary Grass (Phalaris Arundinacea) As Raw Material For Production Of Paper Pulp And Fuel, B Andersson, E Lindvall
Use Of Biomass From Reed Canary Grass (Phalaris Arundinacea) As Raw Material For Production Of Paper Pulp And Fuel, B Andersson, E Lindvall
IGC Proceedings (1997-2023)
Reed canary grass (Phalaris arundinacea) has been investigated as a potential industrial crop in Sweden and other European countries. Reed canary grass (RCG) can be used as raw-material for paper pulp or as biofuel for combustion. A new harvest method, the delayed harvesting system, was developed which makes it possible to get dry, ready to store, material. The method reduces cost and improves quality of the product. The use of RCG as an industrial crop requires a completely different quality compared to forage. The important part is the cellulose while protein and mineral nutrients are disturbing the process …
Modeling The Biomass Production Of Grasslands Of Wallonia According To Their Functional Type, U. Kokah Essomandan, D. Knoden, B. Dumont, J. Bindelle
Modeling The Biomass Production Of Grasslands Of Wallonia According To Their Functional Type, U. Kokah Essomandan, D. Knoden, B. Dumont, J. Bindelle
IGC Proceedings (1997-2023)
Permanent grasslands are complex ecosystems which respond with a great variability - in terms of specific richness - to soil type and management strategies. Modelling is a valuable tool to explore these relationships. Our work consisted in adapting the Moorepark St Gilles grass growth model (MoSt GG) designed to model Lolium perenne plant functional type (PFT) pastures (PFT A) to a different PFT (Dactylis glomerata, PFT B) through literature-based parametrization. The model was evaluated under Walloon (Belgium) conditions using growth trials from 2014 to 2018 in two sites with contrasting pedo-climatic conditions. Three to five cuts were performed …
Estimating Forage Biomass Using Unmanned Ground And Aerial Vehicles, B. A. Koc, J. Singh, M. J. Aguerre,
Estimating Forage Biomass Using Unmanned Ground And Aerial Vehicles, B. A. Koc, J. Singh, M. J. Aguerre,
IGC Proceedings (1997-2023)
The assessment of the amount of biomass in the field is one of the critical factors that helps to manage and optimize numerous operations associated with forage management in the livestock industry. Pasture management decisions about stocking rate, grazing duration, and fertilizer application rate depend on accurate forage availability measurements. The objective of this study was to develop different nondestructive methods of forage biomass estimation using unmanned vehicles based on the relationship between crop height (CH) and the measured above-ground biomass. The unmanned vehicle-based methods were developed and tested on Alfalfa (Medicago Sativa) and Tall Fescue (Schedonorus …
Grass Diversity And Pasture Quality Baseline Assessement In Central Madagascar, O. P. Nanjarisoa, L. Randriamanalina, Wayne F. Truter, M. T. Rajaonah, C. E. R. Lehmann, C. Birkinshaw, L. Rakotonirina, D. Miarinjanahary, N. L. Raharinirina, M. S. Vorontsova
Grass Diversity And Pasture Quality Baseline Assessement In Central Madagascar, O. P. Nanjarisoa, L. Randriamanalina, Wayne F. Truter, M. T. Rajaonah, C. E. R. Lehmann, C. Birkinshaw, L. Rakotonirina, D. Miarinjanahary, N. L. Raharinirina, M. S. Vorontsova
IGC Proceedings (1997-2023)
Poaceae family contributes to Madagascar’s biodiversity hotspot with 217 of 541 grass species endemic to the island, although their forage value is unknown, at least in the scientific literature. Our research aims 1) to describe the diversity of native and endemic grasses thereby recognising the role of grass species diversity in forage and ecosystem management and 2) to provide new knowledge about pasture management based on the relationship between grazing capacity and productivity within experimental pastureland plots under different fire and grazing treatments. Our study seeks to provide information to inform improvements in livestock nutrition via grazing management of natural …
Weed Management Affects Pasture Productivity And Livestock Performance - Tropical Perspective, Joao B. Cason, B. Sleugh
Weed Management Affects Pasture Productivity And Livestock Performance - Tropical Perspective, Joao B. Cason, B. Sleugh
IGC Proceedings (1997-2023)
Weed competition in pastures has a great impact on livestock productivity, as, in addition to competing with forage, it interferes with animal grazing. Without question, weeds can compete with forage for water, space, light and nutrients. Weeds reduce the feed value of forage, decrease pasture carrying capacity, and can be toxic or unpalatable to livestock. For most weeds in pasture, the root system is robust, which contributes to the survival of these plants, affecting the development of the pasture. Due to the large number of seeds, they usually produce, they are very easily dispersed. In addition, when there are weeds …
Salt Tolerance Mechanisms In Perennial Fodder Grasses, Edna Antony, B. Aravind, A. Amulya, T. Anushree, P. V. Rakshata, F. H. Savitha, M. B. Doddamani, P. V. Kuligod, Akbar, Vinod Kumar, K. Sridhar, Vijay Kumar Yadav
Salt Tolerance Mechanisms In Perennial Fodder Grasses, Edna Antony, B. Aravind, A. Amulya, T. Anushree, P. V. Rakshata, F. H. Savitha, M. B. Doddamani, P. V. Kuligod, Akbar, Vinod Kumar, K. Sridhar, Vijay Kumar Yadav
IGC Proceedings (1997-2023)
Salinity stress is one of the most damaging stresses in crop plants. It reduces the productivity of the soil and makes it unsuitable for crop cultivation. Fodder crops are considered the best alternative in such uncultivable land. Using salinity-affected land for pasture development is the best alternative to utilize such lands. However, the extent of salinity tolerance varies among different grass species. In this study, Pearl millet Napier hybrids (PMN hybrid) and guinea grass varieties were studied for salinity tolerance in artificially created saline soils in the ratio of 13:7:1:2 (NaCl: Na2SO4: MgCl: CaSO4, …
Primary Productivity And Water Use Of The Perennial Grass, Cenchrus Ciliaris, In Arid Environments, L. Mnif, Mohamed Chaieb
Primary Productivity And Water Use Of The Perennial Grass, Cenchrus Ciliaris, In Arid Environments, L. Mnif, Mohamed Chaieb
IGC Proceedings (1997-2023)
Cenchrus ciliaris is a perennial grass that may be suitable for the restoration of Rhanterium steppes (Chaieb et al., 1991). In this study, four Cenchrus ciliaris accessions from Tunisia from a range of climate and soil conditions, likely to vary in their adaptation to drought, were evaluated for productivity, rainuse-efficiency and reproductive output at Sfax in southern Tunisia. The suitability of these accessions for the restoration of Rhanterium steppes is considered.
The Use Of Digital Imagery For The Assessment Of Green Biomass In Native Pastures, A. F. Southwell, G. Mckenzie, James M. Virgona, A. M. Ridley, P. Ederback
The Use Of Digital Imagery For The Assessment Of Green Biomass In Native Pastures, A. F. Southwell, G. Mckenzie, James M. Virgona, A. M. Ridley, P. Ederback
IGC Proceedings (1997-2023)
A practice common to pasture research is the assessment of green leaf. In Australia, where the water use of plants is becoming an increasingly important issue due largely to its implications for dryland salinity, it is imperative that accurate and repeatable methods for characterising the amount of green leaf in pastures be used. The assessment of green leaf has been approached in many ways in the past with varying degrees of success and accuracy. The most accurate way is to physically harvest an area of pasture and separate the green component to make the relevant measurements. For many situations, this …
Effects Of Livestock Grazing On The Shrub Vegetation Biomass In The ‘Sierra De Guara’ Natural Park (Spain), J. L. Riedel, I. Casasús, A. García, A. Sanz, M. Blanco, R. Revilla, A. Bernués
Effects Of Livestock Grazing On The Shrub Vegetation Biomass In The ‘Sierra De Guara’ Natural Park (Spain), J. L. Riedel, I. Casasús, A. García, A. Sanz, M. Blanco, R. Revilla, A. Bernués
IGC Proceedings (1997-2023)
The 'Sierra de Guara' Natural Park (80.7 Kha) is a Mediterranean mountain area in Huesca, south of the Spanish Pyrenees. Shrub and forest pastures dominate the Park. They are grazed mainly by sheep, but also by suckler cattle and goats. Average stocking rate is 0.15 LU/ha. As in other European mountain areas, agricultural activities have declined during the last few decades. This has caused a process of secondary vegetation succession towards shrub invasion, with consequent landscape changes. This study aimed to quantify the effect of grazing on shrub vegetation biomass.
Biomass Vertical Distribution In A Grazed Grassland Under Monoespecific And Mixed Grazing, C. Saroff, S. González, A. Ohanian, H. Pagliaricci, Y. R. Chiaramello
Biomass Vertical Distribution In A Grazed Grassland Under Monoespecific And Mixed Grazing, C. Saroff, S. González, A. Ohanian, H. Pagliaricci, Y. R. Chiaramello
IGC Proceedings (1997-2023)
Mixed grazing is defined as the use of the same forage resource for more than one herbivore species. It has been shown that different herbivore species have specific grazing modalities (Black and Kenney, 1984), which may differentially modify the structure of the pasture. The aim of this study was to evaluate the biomass vertical distribution in a sward with mixed grazing.
The Effect Of Topographic Factors On The Productivity Of Mountain Grasslands In Northwestern Benin, T. H. Avohou, Brice Sinsin
The Effect Of Topographic Factors On The Productivity Of Mountain Grasslands In Northwestern Benin, T. H. Avohou, Brice Sinsin
IGC Proceedings (1997-2023)
The Atacora mountains range in northern Benin (660 m altitude) is a special ecosystem in the sudanian zone because of the overriding importance of topographic factors and shallow soils. The vegetation over this mountain range consists of shrub and tree savannas, woodlands and fallows. More and more cattle herds graze on this range. But the functioning of this ecosystem is still unknown like many others in the tropical zone (Sene & Zingari, 2001). This study aims to determine the impact of topography and mountain side exposure on the productivity of the Atacora mountains grasslands in the Atacora mountains.
Plasticity Of Sorghum Biomass And Inflorescence Traits In Response To Nitrogen Application, Kyle M. Linders
Plasticity Of Sorghum Biomass And Inflorescence Traits In Response To Nitrogen Application, Kyle M. Linders
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Nitrogen is an essential nutrient required for growth and development in plants. Insufficient nitrogen availability can reduce vegetative growth and grain yield. However, nitrogen is a costly input for farmers, is energy intensive to manufacture, and runoff of excess nitrogen fertilizer impacts water quality. Compared to its close relative, maize, sorghum has much greater resilience to nitrogen and water deficit, and heat stress, allowing sorghum to be grown with fewer inputs and on marginal land. Variation in total biomass accumulation and grain yield between sorghum accessions, as well as between nitrogen conditions, can be largely explained by differences in vegetative …
Thoughts On Breeding For Increased Forage Yield, E. C. Brummer
Thoughts On Breeding For Increased Forage Yield, E. C. Brummer
IGC Proceedings (1997-2023)
Most forage crops have not experienced yield gains as impressive as those observed in annual grains crops such as maize (Zea mays L); in fact, yield improvement in lucerne appears to have stopped in the Midwestern USA (Riday and Brummer, 2002). I contend that much of this disparity can be explained by a failure of breeders to pursue long term recurrent selection programs within populations to capitalize on small, incremental improvements in yield over time. Many selection programs last only two or three cycles, resulting in a germplasm or cultivar release. Either no further selection is attempted or the …
Data Curation For Modeling Tall Fescue Biomass Dynamics With Dssat-Csm, M. B. Hanson, P. D. Alderman, T. J. Butler, A. Caldeira Rocateli
Data Curation For Modeling Tall Fescue Biomass Dynamics With Dssat-Csm, M. B. Hanson, P. D. Alderman, T. J. Butler, A. Caldeira Rocateli
IGC Proceedings (1997-2023)
While models for predicting forage production are available to aid management decisions for some forage crops, there is limited research for a yield model designed specifically for tall fescue (Schedonorus arundinaceus). Therefore, our objective was to adapt an existing perennial forage model, the Decision Support System for Agrotechnology Transfer Cropping Systems Model (DSSAT-CSM) for predicting forage biomass of tall fescue in the southern Great Plains. To evaluate model performance, there must first be a high level of data manipulation and cleaning. In this project, a cohesive dataset combining biomass, weather, soil, and management data were structured into DSSAT …
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
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 …
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
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.
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
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.
Early Soybean Planting In A Water-Limited Growing Season, Sylvia R.G. Moraes, Bruno C. Pedreira, Vaishalai Sharda, Rodrigo B. Onofre, Gretchen F. Sassenrath
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.
Impact Of Stubble Heights On Native Hay Meadows In Southeast Kansas, Junior I. Yasuoka, Wendie Powell, Walter H. Fick, Bruno C. Pedreira
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.
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
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.
2023 Southeast Research And Extension Center Agricultural Research Report, J. K. Farney
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
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
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 …
Phenotypic Evaluation Of Energycane (Saccharum Spp.) Genotypes In Northcentral Mississippi, Wyatt Armistead Eason
Phenotypic Evaluation Of Energycane (Saccharum Spp.) Genotypes In Northcentral Mississippi, Wyatt Armistead Eason
Theses and Dissertations
As fossil fuel supplies decrease and concerns of climate change increase, the search for alternative sources of fuel has pushed biomass crops to the forefront of discussion. Saccharum spontaneum readily hybridizes with commercial sugarcane and lends cold tolerance and greater yields to the hybrid progeny, called energycane. Twenty genotypes were tested against an energycane variety (Ho 02-113) as a control. Two locations were tested: the HH Leveck Animal Research Center (planted in 2019), and the Bearden Dairy Research Center (planted in 2020). The Bearden Dairy Research Center yielded significantly higher than the HH Leveck Animal Research Center regarding dry matter …
Using Thermal Units To Predict Biomass Accumulation And Total Nitrogen Uptake For Cover Crops In Arkansas, Mila Victório Pessotto
Using Thermal Units To Predict Biomass Accumulation And Total Nitrogen Uptake For Cover Crops In Arkansas, Mila Victório Pessotto
Graduate Theses and Dissertations
Including cover crops in agricultural production systems is an important management practice. Cover cropping can improve soil health, increase plant-available nitrogen (N), provide surface residue to prevent erosional soil loss, increase water infiltration, and increase weed suppression. Cover crops growth can be predicted using thermal days or growing degree days [GDD] similar to commodity crops such as corn (Zea mays L.) or rice (Oryza sativa). Growing degree day calculations are a well-known tool to predict crop growth stage or development stage and can be adapted for use in any plant species, including cover crops. Identifying and developing the relationship between …
Benefits Of Cover Cropping Systems In Walnut Orchards As Sustainable Agricultural Practice, Ana Medic, Consuelo B. Baez Vega
Benefits Of Cover Cropping Systems In Walnut Orchards As Sustainable Agricultural Practice, Ana Medic, Consuelo B. Baez Vega
CSU Journal of Sustainability and Climate Change
In recent years walnut orchards implemented cover crops in between rows to improve soil’s quality, lessen soil’s erosion, increase organic matter, manage nutrient movement and availability, enhance water retention, and expand microbe, insect, and flora diversity. Commonly selected cover crops in California are from families Poaceae, Brassicaceae, and Fabaceae. Considerations should be made when choosing a particular cover crop mixture to enhance multiple benefits and improve sustainable practices in orchard settings. An experiment was conducted in a walnut orchard to compare functionality and benefits of three systems multi-crop, monocrop, and no vegetation cover crop system. The following components were evaluated: …
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
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
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
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 …
Elucidating Sorghum Biomass, Nitrogen And Chlorophyll Contents With Spectral And Morphological Traits Derived From Unmanned Aircraft System, Jiating Li, Yeyin Shi, Arun-Narenthiran Veeranampalayam-Sivakumar, Daniel P. Schachtman
Elucidating Sorghum Biomass, Nitrogen And Chlorophyll Contents With Spectral And Morphological Traits Derived From Unmanned Aircraft System, Jiating Li, Yeyin Shi, Arun-Narenthiran Veeranampalayam-Sivakumar, Daniel P. Schachtman
Department of Agronomy and Horticulture: Faculty Publications
Unmanned aircraft systems (UAS) provide an efficient way to phenotype cropmorphology with spectral traits such as plant height, canopy cover and various vegetation indices (VIs) providing information to elucidate genotypic responses to the environment. In this study, we investigated the potential use of UAS-derived traits to elucidate biomass, nitrogen and chlorophyll content in sorghum under nitrogen stress treatments. A nitrogen stress trial located in Nebraska, USA, contained 24 different sorghum lines, 2 nitrogen treatments and 8 replications, for a total of 384 plots. Morphological and spectral traits including plant height, canopy cover and various VIs were derived from UAS flights …