Agronomy and Crop Sciences Commons^™

Spatial Distribution, Biomass, And Soil Seed Bank Of A Naturalized Population Of Alfalfa In Native Mixed-Grass Prairie, Lan Xu, A. Boe, R. N. Gates, P. S. Johnson, Y. Zhang

IGC Proceedings (1977-2023)

No abstract provided.

Genetic Polymorphism By Rapd Of Leymus Chinensis, X. J. Kong, Z. W. Liang, M. Liu, H. Y. Ma

IGC Proceedings (1977-2023)

No abstract provided.

Changes In Plant Communities By Grazing In Northern Mongolian Grassland And Assessment Of Nomads, K. Kakinuma, S. Takatsuki

IGC Proceedings (1977-2023)

No abstract provided.

Perioperative And Oncological Outcomes Following Minimally Invasive Versus Open Pancreaticoduodenectomy For Pancreatic Duct Adenocarcinoma, Rui Sun, Jiawen Yu, Yifan Zhang

Department of Agronomy and Horticulture: Faculty Publications

Background The outcomes of minimally invasive pancreaticoduodenectomy have not been adequately compared with those of open pancreaticoduodenectomy in patients with pancreatic ductal adenocarcinoma. We performed a meta‐analysis to compare the perioperative and oncological outcomes of these two pancreaticoduodenectomy procedures specifically in patients with pancreatic ductal adenocarcinoma.

Methods Before this study was initiated, a specific protocol was designed and has been registered in PROSEPRO (ID: CRD42020149438). Using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, PubMed, EMBASE, Web of Science, Cochrane Central Register, and ClinicalTrials.gov databases were systematically searched for studies published between January 1994 and October 2019. …

Investigation On Environmental Factors Influencing Distribution Of Plant Species (Case Study: Damghan Region Of Semnan Province), H. Joneidi, Hossein Azarnivand, S. H. Nikoo, M. Zarechahuki

IGC Proceedings (1977-2023)

No abstract provided.

Effect On Artemisia Frigida Module Under Different Stocking Rates In The Desert Steppe, Inner Mongolia, S. Y. Jiao, G. D. Han, M. J. Wang, Z. W. Wang, C. L. Li, Z. H. Xue, X. H. Yang

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Intercropping Forages On Root Growth Of Fruit Tree And Orchard Ecology, Yibin Huang, Weibin Pan, Zhaoyang Ying, En Chen, Boqi Weng

IGC Proceedings (1977-2023)

No abstract provided.

Classification Of Herbaceous Communities In The Subalpine Meadow On Mt . Xiaowutai, Xiaoxia Huang, Kejian He

IGC Proceedings (1977-2023)

No abstract provided.

The Dynamic Changes Of Biodiversity In Hongsongwa Nature Reserve, Tiran Huang, Lianfang Li, Haifeng Liu, Jianguang Pang

IGC Proceedings (1977-2023)

No abstract provided.

The Photosynthetic Characteristics Of Hemarthria Compressa In Different Seasons, Huijun Huang, Chunhua Yang, Lingzhi Chen, Xiantao Fu, Zhisong Tang

IGC Proceedings (1977-2023)

No abstract provided.

Distribution Of Vegetation Types In Bayinbuluk Alpine Grassland, Y. K. Hu, K. H. Li, W. L. Li, G. G. Gao, Y. M. Gong

IGC Proceedings (1977-2023)

No abstract provided.

Cytologic Observations Of Sterility In Interspecific F1 Hybrid From Leymus Chinensis And Leymus Cinereus, Jianhua Hou, Jinfeng Yun

IGC Proceedings (1977-2023)

No abstract provided.

Ecological Characteristics Of 3 Salt Grasses Of Saline And Alkaline Habitats Of Northern Gorgan, Iran, S. A. Hosseini, G. A. Abarsaji, M. Mesdaghi

IGC Proceedings (1977-2023)

No abstract provided.

Citric Acid Accumulation Of Puccinellia Tenuiflorais A Specific Adaptive Response To Alkaline Stress, Hong Yan, Shangjun Yin, Wei Zhao, Decheng Shi

IGC Proceedings (1977-2023)

No abstract provided.

Responses Of Photosynthetic Rate Of Lucerne And The Mechanisms Under Cutting At Different Water Availabilities, Shubin He, Huimin Yang, Guoli Liu, Zhilong Zhang

IGC Proceedings (1977-2023)

No abstract provided.

Ecological Characteristics Of Halophytes In The Arid Areas, Wenjun Han, Kunio Hamamura

IGC Proceedings (1977-2023)

No abstract provided.

Response Of Activated Oxygen Metabolism To Water Stress In Different Drought‐Tolerant Alfalfa (Medicago Sativa) At Seedling Stage, Ruihong Han

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Patch Size Of Metacommunity On Species Diversity In Leymus Chinensis Meadow In The Songnen Plains Of China, Dayong Han, Yunfei Yang, Jiandong Li

IGC Proceedings (1977-2023)

No abstract provided.

The Successional Dynamic Changing Process Of Vegetation Steppe From Central Asia And Mongolian Pasture, Erdenejav Guriin Proffessor

IGC Proceedings (1977-2023)

No abstract provided.

Biological Soil Crust Under Shrubs And Its Topsoil Properties In The Process Of Dune Vegetation Restoration In The Horqin Sandy Grassland, Inner Mongolia, Yirui Guo, Halin Zhao, Xiaoan Zuo

IGC Proceedings (1977-2023)

No abstract provided.

The Comparison Of Photosynthetic Physiological Characteristics Between Leymus Chinensis And Leymus Secalinus In The Songnen Plains, R. Guo, Yunfei Yang

IGC Proceedings (1977-2023)

No abstract provided.

Water Relations In Native Trees, Northeastern Mexico, Humberto González, I. A. Molina, I. C. Silva, M. V. Gómez, R. G. Ramírez

IGC Proceedings (1977-2023)

No abstract provided.

Effects Of Different Utilization Levels On Species Richness Changes In Saral Grassland, Kurdistan Province, S. Gholinejad, M. Vafakhah, S. A. R. Mousavi

IGC Proceedings (1977-2023)

No abstract provided.

Behavior Of Medicinal Species Of Cichorium Intybus Against Salinity On Different Developmental Stages, M. Ghavam Arabani, Hossein Azarnivand, A. Tavili

IGC Proceedings (1977-2023)

No abstract provided.

Impact Of Covid-19 On Arkansas Field Crop Farms, A. Durand-Murat, S. Stiles, B. Watkins, C. R. Stark Jr.

AAES Research Reports and Research Bulletins

The coronavirus (COVID-19) pandemic is disrupting the global economy in unprecedented ways, and the agricultural sector is no exception. Prices of most commodities decreased since the pandemic began, which are affecting farm revenues and production costs. We assess the impact of COVID-19 on Arkansas field crop farms using the Representative Farm models, calibrated to the latest baseline published by the Food and Agricultural Policy Research Institute. The results show that COVID-19 decreases the net cash farm incomes of all five farms, increases the probability of having a negative net cash farm income, and increases the cost of commodity programs. Payments …

Digital Mapping Of Togo’S Soil Fertility: Savannah Region, Aminou Saibou

International Programs

A soil assessment was carried out in the savannah region of Togo in 2018, aiming at drawing the digital map of Togo’s soil fertility and making fertilizer recommendations. Soil samples were taken from geo-referenced GPS points and were analyzed for parameters such as water pH, Organic matter, available phosphorus and exchangeable potassium. Thematic maps have been drawn using an ArcGIS package. The results showed that the soils of the Savannah region in Togo are mainly (84%) not very acidic (pH = 5.5 to 6.5), overall poor to very poor (84%) in organic matter (<2% OM), essentially poor to very poor (86%) in available phosphorus (<15 mg/kg of soil) and mostly very poor (87%) in exchangeable potassium (<90 mg / kg of soil). These results allowed the agricultural research institute of Togo to make fertilizer use recommendations and to develop, in partnership with Morocco, a digital platform (fertitogo.tg ) for decision making in crop fertilization.

Sensitivity Of Enlisttm And Roundup Ready Xtend® Technologies To Auxin Herbicides And Comparison Of Resistance To Susceptible Cotton And Soybean Cultivars, James Rose

Graduate Theses and Dissertations

Increases in weed resistance have led to the development of new herbicide-resistant crop technologies, namely the Roundup Ready Xtend® and EnlistTM weed control systems. These new technologies provide resistance to applications of the synthetic auxins dicamba or 2,4-D, respectively, in traited cotton or soybean. It is unknown if there is any resistance to other herbicides within the synthetic auxin group (WSSA Group 4) in these traited crops. Experiments were conducted with auxin herbicides representing all five families within WSSA Group 4. Herbicides were applied either preemergence (PRE) or postemergence (POST) relative to the crop in a single application. Applications were …

Evaluating Opportunities For Integrated Crop Livestock Systems In Eastern Nebraska, Elizabeth Kay Christenson

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Current agricultural systems focused on production of few commodities are facing production, economic, and environmental challenges. To address these challenges, Integrated Crop Livestock Systems (ICLS) have emerged through three primary methods 1) perennial grasslands for grazing and/or hay production, 2) crop residue grazing, and 3) cover crop grazing. To evaluate potential of ICLS mitigating current challenges, a field scale model ICLS was developed in 2015. The ICLS includes 4-ha each of ‘Newell’ smooth bromegrass (Bromus inermis L.), ‘Liberty’ switchgrass (Panicum virgatum L.), and ‘Shawnee’ switchgrass. The ICLS also included 8-ha of continuous corn (Zea mays L.). In …

Soil-Nitrogen, Potentially Mineralizable-Nitrogen, And Field Condition Information Marginally Improves Corn Nitrogen Management, Jason Clark, Fabián G. Fernández, Kristen S. Veum, James J. Camberato, Paul R. Carter, Richard Ferguson, David W. Franzen, Daniel E. Kaiser, Newell R. Kitchen, Carrie A.M. Laboski, Emerson Nafziger, Carl J. Rosen, John E. Sawyer, John F. Shanahan

Department of Agronomy and Horticulture: Faculty Publications

Anaerobic potentially mineralizable nitrogen (PMN) combined with preplant nitrate test (PPNT) or pre-sidedress nitrate test (PSNT) may improve corn (Zea mays L.) N management. Forty-nine corn N response studies were conducted across the U.S. Midwest to evaluate the capacity of PPNT and PSNT to predict grain yield, N uptake, and economic optimal N rate (EONR) when adjusted by soil sampling depth, soil texture, temperature, PMN, and initial NH₄–N from PMN analysis. Pre-plant soil samples were obtained for PPNT (0- to 30-, 30- to 60-, 60- to 90-cm depths) and PMN (0- to 30-cm depth) before corn planting …

Developing A High-Throughput Method To Screen Soybean Germplasm For Hypoxia Tolerance In Hydroponic Systems, Derrick Harrison

Graduate Theses and Dissertations

Soybean [Glycine max (Merr.)], the second most planted crop in the United States, is sensitive to field flooding due to depletion of oxygen and accumulation of CO2 in the rhizosphere. There is a need to breed cultivars that are adapted to areas prone to flooding, but field evaluations in the U.S. are limited because of time (one generation per year) and availability of resources (impermeable soils, irrigation, equipment to build levees). The purpose of this study was to develop and execute a protocol of germplasm screening for hypoxia tolerance using hydroponics in a controlled greenhouse environment. Germination rates and vigor …