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Articles 1 - 30 of 110
Full-Text Articles in Life Sciences
Bale Grazing To Improve Soil Fertility In Kentucky Pastures, N. Roy, J. W. Lehmkuhler
Bale Grazing To Improve Soil Fertility In Kentucky Pastures, N. Roy, J. W. Lehmkuhler
IGC Proceedings (1997-2023)
A long-term project on a small Kentucky beef farm has demonstrated that bale grazing is an effective means of improving soil fertility. With the cooperation of a beef cattle producer, Extension personnel have been able to measure improvements in soil fertility using both high density and moderate density bale grazing practices. Initial efforts demonstrate that high density bale grazing improved soil fertility quickly by increasing soil test phosphorus from 15 to 45 ppm and potassium from 52 to 175 ppm on Melich III soil test extraction method. High density bale grazing was also shown to serve as a strategy to …
Assessing The Nutrient Status Of Alfalfa Stands In Kentucky, William R. Fleming, Christopher D. Teutsch, Edwin L. Ritchey, John H. Grove
Assessing The Nutrient Status Of Alfalfa Stands In Kentucky, William R. Fleming, Christopher D. Teutsch, Edwin L. Ritchey, John H. Grove
IGC Proceedings (1997-2023)
Alfalfa (Medicago sativa L.) is a perennial forage legume and is sometimes referred to as the “Queen of Forages” due to its high nutritional value. Alfalfa is commonly produced as hay for use in the dairy and equine industries. Alfalfa yield increased exponentially from the 1950s to the1980s due to new breeding and management innovations. However, during the 1980s yields plateaued at around 7.5 Mg/ha and remain there today. The overarching goal of this study was to determine the role of soil fertility in the observed yield plateau. Fifty alfalfa stands in Kentucky were sampled to gather information about …
The Effects Of Potassium Fertilization Regime On High Tunnel Tomato Production, Sapana Pandey
The Effects Of Potassium Fertilization Regime On High Tunnel Tomato Production, Sapana Pandey
Theses and Dissertations--Plant and Soil Sciences
A two-year field experiment (2022-2023) was conducted at the University of Kentucky Horticulture Research Farm in Lexington, KY to study the effects of potassium (K2O) fertilization rates on tomato yield and ripening disorders in determinate and indeterminate varieties (‘BHN-589’ and ‘Big Beef’, respectively). In the first year, K2O rates representing the soil test result-based commercial recommendation (0 lbs/acre) and sequentially greater rates (150, 300, and 450 lbs K2O/acre) were applied. In the second year, K2O rates were increased based on lack of fruit quality response and were 0, 300, 600, and 900 lbs K2O/acre. Leaf tissue nutrients, tomato yield, and …
Conservation Agriculture And Cover Crop Adoption By Smallholder Farmers In Cambodia: Understanding Perceptions, Challenges, And Opportunities For Soil Improvement, Presley Nickens, David R. Ader, Max C. Miller, Ii, Pao Srean, Tom Gill, Sovanneary Huot
Conservation Agriculture And Cover Crop Adoption By Smallholder Farmers In Cambodia: Understanding Perceptions, Challenges, And Opportunities For Soil Improvement, Presley Nickens, David R. Ader, Max C. Miller, Ii, Pao Srean, Tom Gill, Sovanneary Huot
Agricultural and Environmental Sciences Faculty Research
Practical solutions for soil conservation are needed to ensure sustainable food production. Conservation agriculture and the use of cover crops are promising strategies for soil improvement in agricultural systems. These strategies are being promoted in Cambodia to address rapidly declining soil fertility; however, there is a lack of insight into the perceptions of Cambodian smallholders towards cover cropping within a conservation agriculture approach. A greater understanding of the utilization and perceptions of cover crops is needed to increase adoption and prevent further soil degradation. This study utilized a mixed methods approach with quantitative data from a farmer survey and qualitative …
Arkansas Soybean Research Studies 2022, Jeremy Ross
Arkansas Soybean Research Studies 2022, Jeremy Ross
Arkansas Agricultural Experiment Station Research Series
Arkansas is the leading soybean-producing state in the mid-southern United States. Arkansas ranked 11th in soybean production in 2022 when compared to the other soybean-producing states in the U.S. The state represented 3.04% of the total U.S. soybean production and 3.64% of the total acres planted in soybean in 2022. The 2022 state soybean average yield was 52.0 bushels per acre, tying the previous state yield record of 52 bushels per acre set in 2021. The top five soybean-producing counties in 2022 were Mississippi, Crittenden, Phillips, Poinsett, and Arkansas (Table 1). These five counties accounted for over 35.7% of the …
Contribution Of Grasses To Soil Fertility And Improved Livelihoods, G. P. Ojha, B. K. Dhital
Contribution Of Grasses To Soil Fertility And Improved Livelihoods, G. P. Ojha, B. K. Dhital
IGC Proceedings (1997-2023)
Vegetable farming is increasing in Nepal as it provides better economic returns than growing other crops, especially in areas that have easy access to markets. Vegetable farming demands intensive care and balanced supplies of nutrients. Therefore, farmers cultivate vegetables near their residence and because vegetable growing is more profitable, farmers allocate more resources, including organic manure, for its cultivation. In general, using more organic manure on vegetables means that less organic manure is available for non-vegetable crops and farms, unless alternative arrangements are made for producing more organic manure or manure of higher quality.
Long-Term (9-Year) Response Of Two Semiarid Grasslands To Prescribed Fire In The Southwestern Usa, R. L. Pendleton, B. K. Pendleton, C. S. White
Long-Term (9-Year) Response Of Two Semiarid Grasslands To Prescribed Fire In The Southwestern Usa, R. L. Pendleton, B. K. Pendleton, C. S. White
IGC Proceedings (1997-2023)
Historically, arid grasslands of SW USA experienced fire return intervals of 5-10 years. During the last 100 years, however, fire has been a rare event. Recent expansion of woody plants in arid grasslands has prompted managers to re-introduce fire as a tool to reduce abundance of woody plants and maintain perennial grass cover. The use of fire in desert grasslands poses unique challenges, however, due to extreme variability in rainfall patterns. Our research examines vegetation response to repeat fire in 2 desert grassland ecotones near Albuquerque, New Mexico (35.05o N 106.60o W).
Arkansas Soybean Performance Tests 2022, J. F. Carlin, R. B. Mulloy, R. D. Bond
Arkansas Soybean Performance Tests 2022, J. F. Carlin, R. B. Mulloy, R. D. Bond
Arkansas Agricultural Experiment Station Research Series
Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/ or marketing seed within the state, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.
Wayne E. Sabbe Arkansas Soil Fertility Studies 2022, Nathan A. Slaton, Mike Daniels
Wayne E. Sabbe Arkansas Soil Fertility Studies 2022, Nathan A. Slaton, Mike Daniels
Arkansas Agricultural Experiment Station Research Series
Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.
Plant Nutrient Contents And Spatial Distribution Patterns Of Toxic Element Concentrations In Mine Site Soils, Gülşen Tozsi̇n, Taşkin Öztaş
Plant Nutrient Contents And Spatial Distribution Patterns Of Toxic Element Concentrations In Mine Site Soils, Gülşen Tozsi̇n, Taşkin Öztaş
Turkish Journal of Agriculture and Forestry
Open-pit coal mining causes land and soil degradation and negatively affects soil properties. It is of great importance to determine variabilities in soil properties of the abandoned area after the mine is closed and to bring it back to nature by implementing appropriate rehabilitation programs. The aim of this study was to evaluate plant nutrient availability and toxic element pollution in an abandoned coal mine site. The results indicated that the amounts of plant-available P and K are quite low (<90 kg P2O5 ha-1) and low to moderate (<170 kg K2O ha-1), respectively. The concentrations …
Assessing The Impact Of The 4r Nutrient Management On Nitrogen Use Efficiency In Corn, Pedro Morinigo, Dorivar A. Ruiz Diaz
Assessing The Impact Of The 4r Nutrient Management On Nitrogen Use Efficiency In Corn, Pedro Morinigo, Dorivar A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Determining the best management practices for nitrogen (N) fertilizer application to corn is crucial to achieving the objectives of the 4R of nutrient stewardship. Although producers have a wide range of options regarding N fertilization, identifying the right rate, source, placement, and timing (4R) can significantly impact productivity and nitrogen use efficiency. Our objectives were to evaluate the nitrogen agronomic efficiency (NAE), and the corn grain yields as affected by different rates, sources, placements, and timing methods of N fertilizer application under rainfed and irrigated conditions in Kansas. Two rainfed locations in Riley and Republic counties and two irrigated locations …
Arkansas Soybean Research Studies 2021, Jeremy Ross
Arkansas Soybean Research Studies 2021, Jeremy Ross
Arkansas Agricultural Experiment Station Research Series
Arkansas is the leading soybean-producing state in the mid-southern United States. Arkansas ranked 11th in soybean production in 2021 compared to the other soybean-producing states in the U.S. The state represented 3.49% of the total U.S. soybean production and 3.49% of the total acres planted in soybean in 2021. The 2021 state soybean average yield was 52.0 bushels per acre, setting a new state record and surpassing the previous yield record of 51.5 bushels per acre set in 2020. The top five soybean-producing counties in 2021 were Mississippi, Phillips, Crittenden, Poinsett, and Arkansas (Table 1). These five counties accounted for …
Vermicompost Versus Traditional Compost Amendments Leads To Different Soil Health Outcomes In A Mediterranean Vineyard, Elizabeth L. Luck
Vermicompost Versus Traditional Compost Amendments Leads To Different Soil Health Outcomes In A Mediterranean Vineyard, Elizabeth L. Luck
Master of Science in Environmental Sciences and Management Projects
Compost application has become a common practice in vineyard management to increase soil and crop health, however, the environmental externalities such as greenhouse gas emissions (GHG) from cropping systems that utilize organic fertilizers, such as compost, is uncertain. Vermicompost, which is compost created through the digestion of organic matter by earthworms, and its related ‘extract’ are commonly thought to provide more benefits for soil and crop health compared to standard compost. However, organic fertilizers such as vermicompost, vermicompost extract, and compost have not been compared in their effects on soil health in Mediterranean vineyards. In this two-year study, I assessed …
Influence Of Information Sources On Farmers’ Indigenous Knowledge Of Soil Fertility Management In Nigeria, Friday O. Idiku, Emmanuel Ohara Eremi, Oliver Effiong Ntui, Mary Chinwe Nwogu, Precious Jabe Besong
Influence Of Information Sources On Farmers’ Indigenous Knowledge Of Soil Fertility Management In Nigeria, Friday O. Idiku, Emmanuel Ohara Eremi, Oliver Effiong Ntui, Mary Chinwe Nwogu, Precious Jabe Besong
Library Philosophy and Practice (e-journal)
This study assessed the influence of information sources on farmers’ indigenous knowledge on soil fertility management in Nigeria. Multi-stage sampling technique was employed to select one hundred and eighty respondents and the instrument for data collection was the questionnaire. Data collected were analyzed using descriptive statistics of simple frequency and percentage. The findings show that majority of the farmers sampled were female 57.2%, single 50.5%; and tertiary education 39.5%. The result on the sources of farmers’ information about soil fertility management indicated that television was 31.7%, and social media accounted for 31.1% of the total respondents while extension agents accounted …
Wayne E. Sabbe Arkansas Soil Fertility Studies 2021, Nathan A. Slaton
Wayne E. Sabbe Arkansas Soil Fertility Studies 2021, Nathan A. Slaton
Arkansas Agricultural Experiment Station Research Series
Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.
Soil Nitrous Oxide (N2O) Emission From Integrated Soil Fertility Management In Maize (Zea Mays L.) Cropping Systems, R. Rogito, N. Karanja, L. Merbold, M. Necpalova, J. Six
Soil Nitrous Oxide (N2O) Emission From Integrated Soil Fertility Management In Maize (Zea Mays L.) Cropping Systems, R. Rogito, N. Karanja, L. Merbold, M. Necpalova, J. Six
IGC Proceedings (1997-2023)
Integrated Soil Fertility Management (ISFM) has been recommended to address challenges of low soil fertility by incorporating locally available organic resources (ORs) together with inorganic nitrogen (N) fertilizers. Despite ISFM success in field trials, there is limited information on ORs contribution to atmospheric greenhouse gas concentrations through N2O emission. A short-term field study was conducted at two sites with different soil types; silt loam (Aludeka) and silty-clay soil (Sidada) to assess the influence of selected ORs on soil N2O emissions. The ORs treatments included; Calliandra carothyrsus (CL), farmyard manure (FYM) and maize stover (MS) with (+N) …
Green Canopy Cover Percentage As A Method For Quantifying Andropogon Virginicus (Broomsedge) Reduction Through Fertilizer Applications In A Cool Season Hay Production System, Jordyn A. Bush, Jimmy C. Henning, Christopher D. Teutsch
Green Canopy Cover Percentage As A Method For Quantifying Andropogon Virginicus (Broomsedge) Reduction Through Fertilizer Applications In A Cool Season Hay Production System, Jordyn A. Bush, Jimmy C. Henning, Christopher D. Teutsch
IGC Proceedings (1997-2023)
Remote sensing has been used to measure green canopy cover for a variety of agronomic purposes. This study explores the use of digital imagery as a method to quantify warm and cool season grasses in a hay production system. Due to alternate growth periods, cool and warm season grasses show greener color in different seasons. These seasonal color shifts provide an opportunity to measure their respective percentages when growing together in a system. This study was conducted in a hay field that was originally dominated by cool season grasses including tall fescue (Festuca arundinacea) and Kentucky bluegrass ( …
Agropastoral Systems An Alternative To Revert Pasture Degradation In The Cerrados Of Brazil: Preliminary Results, Manuel C. M. Macedo, J. A. M. Bono, A. H. Zimmer, F. P. Costa, Tsutomu Kanno, Cesar Heraclides Behling Miranda, A. N. Kichel
Agropastoral Systems An Alternative To Revert Pasture Degradation In The Cerrados Of Brazil: Preliminary Results, Manuel C. M. Macedo, J. A. M. Bono, A. H. Zimmer, F. P. Costa, Tsutomu Kanno, Cesar Heraclides Behling Miranda, A. N. Kichel
IGC Proceedings (1997-2023)
A long term experiment was set to test the hypothesis that agropastoral systems could improve crop and animal production, being more profitable and sustainable relative to economical, biological and environmental aspects, than continuous and traditional crop and grazing pasture systems. Five farming systems are being tested: two traditional (continuous soybean annual cropping and continuous pasture cropping) and three agropastoral systems (two combinations of four by four years of rotational crop-pasture systems and one by three years of crop-pasture rotation). Animal production in continuous pasture cropping measured as liveweight gain/ha (LWG) are declining along the years in the sub-treatment without fertilizer …
Potential Of Crop Rotation Using Forages In The Tropics, P. L. Mafongoya
Potential Of Crop Rotation Using Forages In The Tropics, P. L. Mafongoya
IGC Proceedings (1997-2023)
Soil fertility is a fundamental biophysical root cause of food insecurity sub-Saharan Africa. Low quality crop residues and grasses during the dry season also limit animal productivity. Forage legumes (herbaceous and tree legumes) have great potential to increase crop animal productivity. Technologies have been developed over the past 3 decades to fully integrate forage legumes into farming. Most of these technologies are still on shelves with low adoption by farmers. Rhe role of forage legumes in nutrient cycling is reviewed in this paper. The factor limiting adoption will also be discussed. Innovative dissemination pathways to increase adoption will be suggested.
Arkansas Soybean Research Studies 2020, Jeremy Ross
Arkansas Soybean Research Studies 2020, Jeremy Ross
Arkansas Agricultural Experiment Station Research Series
The 2020 Arkansas Soybean Research Studies includes research reports on topics pertaining to soybean across several disciplines from breeding to post-harvest processing. Research reports contained in this publication may represent preliminary or only data from a single year or limited results; therefore, these results should not be used as a basis for long-term recommendations. Several research reports in this publication will appear in other University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station publications. This duplication is the result of the overlap in research coverage between disciplines and our effort to inform Arkansas soybean producers of the research …
Forage Quality And The Environment, C. E. Lascano, A. Schmidt, R. Barahona
Forage Quality And The Environment, C. E. Lascano, A. Schmidt, R. Barahona
IGC Proceedings (1997-2023)
The influence of environmental factors on forage quality of temperate and tropical grasses has been reviewed by several authors, who summarized how light, temperature, drought and soil nutrients influence chemical composition, and digestibility of forages grown in contrasting areas of the world. The effects of season of the year on forage growth, grazing behavior and animal performance have also been the subject of numerous papers and reviews. However, there are few recent reviews that summarize how changes in climatic and edaphic factors influence forage quality of legumes with variable levels of condensed tannins (CT), which are important secondary compounds in …
Effects Of Agroforestry Practices On Soil Properties In The Drylands Of Eastern Kenya, Nicholas Syano Mutuku, Moses M. Nyangito, Geoffrey Kironchi, Oliver Vivian Wasonga
Effects Of Agroforestry Practices On Soil Properties In The Drylands Of Eastern Kenya, Nicholas Syano Mutuku, Moses M. Nyangito, Geoffrey Kironchi, Oliver Vivian Wasonga
IGC Proceedings (1997-2023)
Drylands, which are home to about 2 billion people face a myriad of problems among them low land productivity. Agroforestry is one of the land use practices that is perceived to be sustainable with beneficial effects on soil properties. However, the effects of agroforestry practices on soils especially in the drylands have rarely been quantified and studied in details. The study determined the effects of selected agroforestry practices on soil properties in Makueni County of Kenya where agroforestry has been promoted by various organizations. Four soil samples were collected at 0-15cm, 15-30cm, 30-45cm and 45-60cm depths in a zigzag pattern …
The Effect Of Fermented Saw-Dust Pig Manure On Forage Mineral Contents And Soil Fertility In Cheju Volcanic Ash Soil, M. C. Kim, T. G. Kim
The Effect Of Fermented Saw-Dust Pig Manure On Forage Mineral Contents And Soil Fertility In Cheju Volcanic Ash Soil, M. C. Kim, T. G. Kim
IGC Proceedings (1997-2023)
Studies were carried out to investigate the change of soil characteristics and pasture minerals as affected by fermented saw-dust pig manure(FSM) applied to mixed pasture of a brown volcanic ash soil during the period from October 1996 to October 1998. Pasture mixed with orchardgrass (Dactylis glomerata L.) and white clover (Trifolium repens L.) was treated with N 200kg/ha + P 300kg/ha +K 200kg/ha(T1), N 100kg/ha + 10 ton/ha FSM(T2), FSM 10 ton/ha(T3), 20ton/ha FSM(T4), 40ton/ha FSM(T5) or 80ton/ha FSM(T6). K and P contents of mixed pasture in the 3rd year after sowing increased significantly with increasing levels of …
Forage News [2021-03], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2021-03], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
No abstract provided.
Characterization Of Soil Properties Under Legume And Non‐Legume Tree Canopies Occurring In Signal Grass (Brachiaria Decumbens Stapf.) Pastures, José C. B. Dubeux Jr., M. A. Lira, M. V. F. Santos, D. M. Barros, M. A. Silva, Alexandre C. L. De Mello
Characterization Of Soil Properties Under Legume And Non‐Legume Tree Canopies Occurring In Signal Grass (Brachiaria Decumbens Stapf.) Pastures, José C. B. Dubeux Jr., M. A. Lira, M. V. F. Santos, D. M. Barros, M. A. Silva, Alexandre C. L. De Mello
IGC Proceedings (1997-2023)
No abstract provided.
Exploitation Enhancement Of Buffaloes Manure Application Vs Conventional Cultivation In Intensive Two Forage Cropping Models Per Year--Results On Agronomic Purposes, Pasquale Martiniello, E. Sabia, E. Rossi, S. Concetti
Exploitation Enhancement Of Buffaloes Manure Application Vs Conventional Cultivation In Intensive Two Forage Cropping Models Per Year--Results On Agronomic Purposes, Pasquale Martiniello, E. Sabia, E. Rossi, S. Concetti
IGC Proceedings (1997-2023)
No abstract provided.
Evaluating The Effects Of Residual Broiler Litter And Copper In Soil On Hemp (Cannabis Sativa L.) Fertility And Cannabinoid Production, Sarah E. Forden
Evaluating The Effects Of Residual Broiler Litter And Copper In Soil On Hemp (Cannabis Sativa L.) Fertility And Cannabinoid Production, Sarah E. Forden
Murray State Theses and Dissertations
This study encases two separate experiments observing hemp (Cannabis sativa L.) and soil fertility with the use of broiler litter and copper. The long-term broiler litter research plots were established in 1997 and the copper fertility research plots were not established until 2009. Both experiments use a randomized complete lock design with the broiler litter experiment composed of four replications and eight treatments at the following rates: 0, 1, 2, 3, 4, 5, 6, and 7 tons BL * ac-1. The copper experiment was designed with four replications and three treatments at the following rates: 0, 10, …
The Effect Of Different Interval Between Pasture Belts On Water And Soil Conservation, Ruiqing Ye, Bizhi Huang, Xiping Yuan, Shaowu Long, Qingmin Chen, Xinkui Fan
The Effect Of Different Interval Between Pasture Belts On Water And Soil Conservation, Ruiqing Ye, Bizhi Huang, Xiping Yuan, Shaowu Long, Qingmin Chen, Xinkui Fan
IGC Proceedings (1997-2023)
No abstract provided.
The Soil Improvement Effect Of Afforestation In Grassland--Take Gegentala Grassland As Example, Zhongju Meng, Yong Gao, Deren Yan
The Soil Improvement Effect Of Afforestation In Grassland--Take Gegentala Grassland As Example, Zhongju Meng, Yong Gao, Deren Yan
IGC Proceedings (1997-2023)
No abstract provided.
Residue Effects Of Animal Manures On Forage Production And Soil Fertility After Receiving Longterm Of Manure Application, Fu‐Hsing Hsu, Kuoyuan Hong, Chihsin Lu
Residue Effects Of Animal Manures On Forage Production And Soil Fertility After Receiving Longterm Of Manure Application, Fu‐Hsing Hsu, Kuoyuan Hong, Chihsin Lu
IGC Proceedings (1997-2023)
No abstract provided.