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Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan Dec 2020

Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The ability to recycle phosphorus (P) from wastewaters could provide a sustainable, continuous source of P that might also help protect surface water quality from P enrichment. The mineral struvite (MgNH4PO4·6H2O) is an understudied material that can be created from Pcontaining wastewater and has been shown to have agricultural fertilizer value. The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (Crystal Green; CG), diammonium phosphate (DAP), monoammonium phosphate (MAP), rock phosphate (RP), and triple super phosphate (TSP) on corn (Zea mays) and soybean (Glycine max) response in a 79-day greenhouse ...


Effects Of Wi-Fi-Enabled Smart Irrigation Controllers On Water Use And Plant Health Of Residential Landscapes In The Intermountain West, Shane R. Evans Dec 2020

Effects Of Wi-Fi-Enabled Smart Irrigation Controllers On Water Use And Plant Health Of Residential Landscapes In The Intermountain West, Shane R. Evans

All Graduate Theses and Dissertations

Residential and commercial landscapes provide home and business owners with several benefits. These benefits range from improved air quality and flood control to the reduction of noise and breakdown of organic chemicals. However, these landscapes are routinely overwatered which can lead to plant disease, nutrient pollution, and large amounts of water being wasted. Utah State University, in conjunction with the Center for Water Efficient Landscaping (CWEL), the Utah Division of Natural Resources and Weber Basin Water Conservancy District, conducted an experiment to determine if Wi-Fi-enabled smart irrigation controllers conserve water as compared to average residential irrigation amounts and manually programmed ...


Examination And Empirical Forecast Of Wheat Yield In Northwest India Based On Climate And Socio-Economic Factors, Avik Mukherjee Dec 2020

Examination And Empirical Forecast Of Wheat Yield In Northwest India Based On Climate And Socio-Economic Factors, Avik Mukherjee

All Graduate Theses and Dissertations

This study summarizes the findings of research organized in two parts. The first part includes the impact of climate and socio-economic factors that affected wheat yield in northwest India during the 2000s. The second part focused on the forecast of average wheat yield for the two highest wheat producing states Punjab and Haryana.

Initial study focused on the impact of climate factors on wheat yield in northwest India. It has been found that above normal temperature coupled with water shortage i.e. irregular irrigation and low soil moisture contributed to the prolonged yield reduction during 2002-2010.

Next, we reviewed the ...


Selection And Propagation Of Pinyon Pine, Kylie M. Lawson Dec 2020

Selection And Propagation Of Pinyon Pine, Kylie M. Lawson

All Graduate Theses and Dissertations

Single-leaf pinyon pines are drought tolerant trees native to the Great Basin. This species is a source of wild-collected, edible pine nuts that are in great demand. With no previous research apparent, this thesis aimed to identify wild trees with high cone production as sources for evaluating grafting onto immature and mature trees. Wild sources of scions were identified from four wild stands and six trees per stand. Counting and analyzing the number of scars left by mature cones along the leader branch provided an estimate for each tree’s productivity and identified trees with greater productivity within a stand ...


Water Use In Jujube (Ziziphus Jujuba) With Applications In Irrigation Timing And Quantity, Preston S. Colver Dec 2020

Water Use In Jujube (Ziziphus Jujuba) With Applications In Irrigation Timing And Quantity, Preston S. Colver

All Graduate Theses and Dissertations

Jujube (Ziziphus jujuba) is a major fruit crop in China where it has been a favored cash crop and successfully used to address erosion problems in the Loess Plateau region of western China. Further use of jujube in forestry projects and improved agricultural efficiency are very promising. This study sought to repeat a water-use study in two climates: a hot, semi-arid climate in Yangling, Shaanxi, China and a dry-summer, continental climate in Logan, Utah, USA. The study took physiological measurements on the trees with the aim of characterizing the way that jujube uses water. This would help to create an ...


Development Of Resilience‐Based State‐And‐Transition Models, D. D. Briske, Brandon T. Bestelmeyer, T. K. Stringham, P. L. Shaver Sep 2020

Development Of Resilience‐Based State‐And‐Transition Models, D. D. Briske, Brandon T. Bestelmeyer, T. K. Stringham, P. L. Shaver

International Grassland Congress Proceedings

No abstract provided.


Natural And Cultural Resources, Qualities Of The Products And Local Development In Rangeland And Grassland Areas In France: Animal Products In The "Pdo System", C. Béranger, J. Bonnemaire Sep 2020

Natural And Cultural Resources, Qualities Of The Products And Local Development In Rangeland And Grassland Areas In France: Animal Products In The "Pdo System", C. Béranger, J. Bonnemaire

International Grassland Congress Proceedings

No abstract provided.


Forage Production Estimate Of Incienso (Flourensiathurifera (Mol.) Dc.), Repanda (Atriplex Repanda Phil.) And Numularia (Atriplex Nummularia Lindl.) According To Shrub Size And Annual Rainfall, P. Azócar, A. Mansilla, D. Troncoso, D. Patón Sep 2020

Forage Production Estimate Of Incienso (Flourensiathurifera (Mol.) Dc.), Repanda (Atriplex Repanda Phil.) And Numularia (Atriplex Nummularia Lindl.) According To Shrub Size And Annual Rainfall, P. Azócar, A. Mansilla, D. Troncoso, D. Patón

International Grassland Congress Proceedings

No abstract provided.


Case Studies In Developing Rangeland Sustainability Indicators: Scale Matters, B. H. Allen‐Diaz, L. Huntsinger, J. W. Bartolome, L. D. Ford Sep 2020

Case Studies In Developing Rangeland Sustainability Indicators: Scale Matters, B. H. Allen‐Diaz, L. Huntsinger, J. W. Bartolome, L. D. Ford

International Grassland Congress Proceedings

No abstract provided.


Classifying Reflectance Targets Under Ambient Light Conditions Using Passive Spectral Measurements, Ali Hamidisepehr, Michael P. Sama, Joseph S. Dvorak, Ole O. Wendroth, Michael D. Montross Sep 2020

Classifying Reflectance Targets Under Ambient Light Conditions Using Passive Spectral Measurements, Ali Hamidisepehr, Michael P. Sama, Joseph S. Dvorak, Ole O. Wendroth, Michael D. Montross

Biosystems and Agricultural Engineering Faculty Publications

Collecting remotely sensed spectral data under varying ambient light conditions is challenging. The objective of this study was to test the ability to classify grayscale targets observed by portable spectrometers under varying ambient light conditions. Two sets of spectrometers covering ultraviolet (UV), visible (VIS), and near−infrared (NIR) wavelengths were instrumented using an embedded computer. One set was uncalibrated and used to measure the raw intensity of light reflected from a target. The other set was calibrated and used to measure downwelling irradiance. Three ambient−light compensation methods that successively built upon each other were investigated. The default method used ...


Trigger Points--Decision Tools To Mitigate Seasonal Climate Risk In Western New South Wales, Australia, Yohannes Alemseged, Ronald B. Hacker, W. J. Smith Sep 2020

Trigger Points--Decision Tools To Mitigate Seasonal Climate Risk In Western New South Wales, Australia, Yohannes Alemseged, Ronald B. Hacker, W. J. Smith

International Grassland Congress Proceedings

No abstract provided.


A Monitoring System To Aid Decision Making In Grassland Management In Arid Areas Of China, Zhongling Liu, Adrian Williams, Dunyuan Hao Sep 2020

A Monitoring System To Aid Decision Making In Grassland Management In Arid Areas Of China, Zhongling Liu, Adrian Williams, Dunyuan Hao

International Grassland Congress Proceedings

No abstract provided.


Assessing The Affect Of Distance From Settlements On Landscape Function Analysis Indices In Central Mongolia, J. Addison, M. Nyamtseren Sep 2020

Assessing The Affect Of Distance From Settlements On Landscape Function Analysis Indices In Central Mongolia, J. Addison, M. Nyamtseren

International Grassland Congress Proceedings

No abstract provided.


Beef Cattle Performance On Panicum Maximum Pastures Under Two Levels Of Fertilization In Brazil, Valéria P. B. Euclides, Manuel C. M. Macedo, Jean Amorim Costa, Wellington Fernandez Sep 2020

Beef Cattle Performance On Panicum Maximum Pastures Under Two Levels Of Fertilization In Brazil, Valéria P. B. Euclides, Manuel C. M. Macedo, Jean Amorim Costa, Wellington Fernandez

International Grassland Congress Proceedings

No abstract provided.


Short‐Term Response Of Preferred And Unpreferred Species To Sheep Grazing In A Patagonian Steppe, M. D. Valenta, R. A. Golluscio Sep 2020

Short‐Term Response Of Preferred And Unpreferred Species To Sheep Grazing In A Patagonian Steppe, M. D. Valenta, R. A. Golluscio

International Grassland Congress Proceedings

No abstract provided.


Vegetation Response To Grazing Management In A Mediterranean Grassland: A Long‐Term Synthesis, Marcelo Sternberg, Zalmen Henkin, Avi Perevolotsky, Eugene D. Ungar Sep 2020

Vegetation Response To Grazing Management In A Mediterranean Grassland: A Long‐Term Synthesis, Marcelo Sternberg, Zalmen Henkin, Avi Perevolotsky, Eugene D. Ungar

International Grassland Congress Proceedings

No abstract provided.


The Influence Of Tree Thinning On Grass Dry Matter Yield, With And Without Grazing By Herbivore Game Species In The Marakele Park, South Africa, G. N. Smit, F. C. Pienaar Sep 2020

The Influence Of Tree Thinning On Grass Dry Matter Yield, With And Without Grazing By Herbivore Game Species In The Marakele Park, South Africa, G. N. Smit, F. C. Pienaar

International Grassland Congress Proceedings

No abstract provided.


Grazing Disturbance A Benefit To Species Diversity In Re‐Established Native Grass Stands, Michael P. Schellenberg, Alan D. Iwaasa Sep 2020

Grazing Disturbance A Benefit To Species Diversity In Re‐Established Native Grass Stands, Michael P. Schellenberg, Alan D. Iwaasa

International Grassland Congress Proceedings

No abstract provided.


The Use Of Criteria And Indicator Monitoring Of Ecosystem Sustainability To Assess Ecosystem Services On Grasslands/Rangelands, R. Dennis Child, Janette Kaiser, Ralph Crawford Sep 2020

The Use Of Criteria And Indicator Monitoring Of Ecosystem Sustainability To Assess Ecosystem Services On Grasslands/Rangelands, R. Dennis Child, Janette Kaiser, Ralph Crawford

International Grassland Congress Proceedings

No abstract provided.


Applicability Of Criteria And Indicators For Sustainable Grassland Management To Rangelands Of Patagonia (Argentina), Gabriel E. Oliva, Andrés F. Cibils Sep 2020

Applicability Of Criteria And Indicators For Sustainable Grassland Management To Rangelands Of Patagonia (Argentina), Gabriel E. Oliva, Andrés F. Cibils

International Grassland Congress Proceedings

No abstract provided.


Indicators Of Sustainability In African Ranglands, Walter J. Lusigi, Leornad Berry Sep 2020

Indicators Of Sustainability In African Ranglands, Walter J. Lusigi, Leornad Berry

International Grassland Congress Proceedings

No abstract provided.


Experiences With Grazing The New Annual Pasture Legume Biserrula Pelecinus L. In Southern Australia Production Benefits And Risk Of Photosensitisation, Clinton K. Revell, N. Robertson, I. Williams Sep 2020

Experiences With Grazing The New Annual Pasture Legume Biserrula Pelecinus L. In Southern Australia Production Benefits And Risk Of Photosensitisation, Clinton K. Revell, N. Robertson, I. Williams

International Grassland Congress Proceedings

No abstract provided.


Grazing Impacts On The Dynamics Of Two Long Lived Perennial Grasses In Tropical Australia, David M. Orr, P. J. O'Reagain Sep 2020

Grazing Impacts On The Dynamics Of Two Long Lived Perennial Grasses In Tropical Australia, David M. Orr, P. J. O'Reagain

International Grassland Congress Proceedings

No abstract provided.


Testing Non‐Equilibrium Theory: Effects Of Grazing On Plant Community Composition And Soil Nutrient Availability In Dry Southern Mongolian Steppes, Karsten Wesche, Katrin Ronnenberg Sep 2020

Testing Non‐Equilibrium Theory: Effects Of Grazing On Plant Community Composition And Soil Nutrient Availability In Dry Southern Mongolian Steppes, Karsten Wesche, Katrin Ronnenberg

International Grassland Congress Proceedings

No abstract provided.


The Use Of Faecal Nirs To Monitor Diet Quality Different Grazing Systems In Tropical Savannas, Andrew I. White, L. P. Hunt, S. R. Petty, Dennis P. Poppi Sep 2020

The Use Of Faecal Nirs To Monitor Diet Quality Different Grazing Systems In Tropical Savannas, Andrew I. White, L. P. Hunt, S. R. Petty, Dennis P. Poppi

International Grassland Congress Proceedings

No abstract provided.


Linear Analysis Method To Calculate The Specific Forage Ingestion By Livestock, Andrea Pardini, V. Pratesi, N. Staglianò Sep 2020

Linear Analysis Method To Calculate The Specific Forage Ingestion By Livestock, Andrea Pardini, V. Pratesi, N. Staglianò

International Grassland Congress Proceedings

No abstract provided.


Monitoring Of Inner Mongolian Grassland Using Sustainable Roundtable Indictors, Mengli Zhao, Guodong Han, Mingjun Wang, Xiaoyu Wang, Chunli Li, Zhongwu Wang, Dennis Chlld, Lakhdar Benkobi, Walter D. Willms Sep 2020

Monitoring Of Inner Mongolian Grassland Using Sustainable Roundtable Indictors, Mengli Zhao, Guodong Han, Mingjun Wang, Xiaoyu Wang, Chunli Li, Zhongwu Wang, Dennis Chlld, Lakhdar Benkobi, Walter D. Willms

International Grassland Congress Proceedings

No abstract provided.


Indicators Of Sustainability For Production And Biodiversity Conservation In Australian Rangelands, Margaret H. Friedel, G. N. Bastin, A. K. Smyth Sep 2020

Indicators Of Sustainability For Production And Biodiversity Conservation In Australian Rangelands, Margaret H. Friedel, G. N. Bastin, A. K. Smyth

International Grassland Congress Proceedings

No abstract provided.


Role Of Grazing Cattle On Seed Dispersal Of Plants In A Hill Pasture 4. Effects Of Dung Patch On Environmental Condition In Dung And Seedling Establishment, Shin-Ichiro Ogura, S. Tanaka, S. Sato Sep 2020

Role Of Grazing Cattle On Seed Dispersal Of Plants In A Hill Pasture 4. Effects Of Dung Patch On Environmental Condition In Dung And Seedling Establishment, Shin-Ichiro Ogura, S. Tanaka, S. Sato

International Grassland Congress Proceedings

No abstract provided.


Role Of Grazing Cattle On Seed Dispersal Of Plants In A Hill Pasture 3. Seasonal Variation Of Locations Of Defecation By Cattle And Its Effects On Germination Of Seeds In Dung Pats, Shin-Ichiro Ogura, M. Obara, T. Shishido, K. Sugawara Sep 2020

Role Of Grazing Cattle On Seed Dispersal Of Plants In A Hill Pasture 3. Seasonal Variation Of Locations Of Defecation By Cattle And Its Effects On Germination Of Seeds In Dung Pats, Shin-Ichiro Ogura, M. Obara, T. Shishido, K. Sugawara

International Grassland Congress Proceedings

No abstract provided.