Agronomy and Crop Sciences Commons^™

Soil Factors Affecting The Distribution Of Four Salt Tolerant Range Plants In Eastern Azarbaijane Province (Gharakhlar), A. Mokhtari Asal, Sh. Rastegar, S. Kh. Mahdavi, M. R. Sadeghimanesh

IGC Proceedings (1977-2023)

No abstract provided.

Initial Development Of Dwarf Elephant Grass (Pennisetum Purpureum Schum.) Clones In The Coastal Region Of Pernambuco State, Brazil, Alexandre C. L. De Mello, M. V. Cunha, M. A. Lira, M. V. F. Santos, José C. B. Dubeux Jr., E. V. Freitas

IGC Proceedings (1977-2023)

No abstract provided.

Biodiversity And Structure Of Subtropical Boliviano‐Tucumano Mountain Forests, Depending On Disturbance Intensity Due To Forest Grazing And Selective Timber Logging, Andrea C. Mayer, F. S. Zenteno, S. Beck, Svenja Marquardt, Michael Kreuzer, H. Alzérreca

IGC Proceedings (1977-2023)

No abstract provided.

Tiller Weight Versus Tiller Number In A Perennial Ryegrass Population: A Productivity Index, Cory Matthew, A. M. Sartie, H. S. Easton

IGC Proceedings (1977-2023)

No abstract provided.

Grazing Summer‐Active Tall Fescue In South‐Eastern Australia, Margaret Raeside, Michael A. Friend, Alister Lawson

IGC Proceedings (1977-2023)

No abstract provided.

Seasonal Dynamics Of The Rangeland's Vegetations Of Arid Zone Of Uzbekistan, Bakhtiyor K. Mardonov, Wolfgang Pittroff, Toshpulot F. Rajabov, F. N. Bobodjanov

IGC Proceedings (1977-2023)

No abstract provided.

Preliminary Investigations On Columbus Grass (Sorghum Almum Parodi) For Fodder In Semi‐Arid Nigeria: Effects Of Sowing Methods On Growth Components And Herbage Yield, B. S. Malami, H. M. Tukur, H. Dahiru

IGC Proceedings (1977-2023)

No abstract provided.

Forage Potential Of Alfalfa (Medicago Sativa L.) For Wildlife, D. Maćešić, S. Sikora, Z. Svečnjak, D. Uher

IGC Proceedings (1977-2023)

No abstract provided.

Cover Cropping In Soybean-Corn Rotation System: Economic, Agronomic, And Soil Fertility Impact, Jose Rodolfo Mite

LSU Doctoral Dissertations

Planting winter-annual cover crops prevent soil erosion, reduces water runoff, and improves soil structure and soil quality. This research was conducted from 2017 to 2019 to evaluate the nutrient turnover of different species of cover crops in soils under different row crop production systems in Northeast and Central Louisiana. In Northeast Louisiana (Site 1, 2, and 3), treatments (cover crops and no cover crop) were arranged in a strip trial with three replications. At the Ben Hur Research Station, the treatments included three planting dates (September, October, and November) with [7 kg ha^-1 of phosphorus (P) and potassium (K)] …

Grazing Crops For Extra Winter Feed In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Grazing crops can dramatically increase feed availability in early winter and help avoid the effects of frost and disease. Early sown crops can provide winter feed with little or no penalty to crop yield.

The Department of Primary Industries and Regional Development provides this information to help managers of mixed farming enterprises.

Public Relations Of Cal Poly Avocado Rootstock Trial, Angel Daniel Carrillo

Agricultural Education and Communication

Avocados have been one of California’s specialty crops for quite some time now. The industry has been motivating growers to implement the best management practices to ensure stable and increased production as much as they possibly can. California is the leading state in the country for avocado production. In 2019, California alone produced 109 tons of avocados (US Department of Agriculture, 2020). Unfortunately, root rot has made it a challenge to do so.

Root rot is a disease derived from the Phytophthora cinnamomi pathogen. This is an issue for avocado production worldwide. In efforts to find a method of decreasing …

Production And Selection Of Quality Protein Popcorn Hybrids Using A Novel Ranking System And Combining Ability Estimates, Leandra Parsons, Ying Ren, Abou Yobi, Preston Hurst, Ruthie Angelovici, Oscar Rodriguez, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Popcorn varieties are agronomically sub-optimal and genetically limited compared to other maize subspecies. To increase genetic diversity and improve popcorn agronomics, dent germplasm has been introduced to popcorn with limited success and generally, major loss of popping. Between 2013 and 2018, 12 Quality Protein Popcorn (QPP) inbreds containing Quality Protein Maize (QPM) and popcorn germplasm were produced that maintained popping while carrying the opaque-2 allele conferring elevated kernel lysine. This is an opportune trait in the growing market for healthier snacks and a model for mining QPM traits into popcorn. We crossed QPP inbreds to explore the effects of heterosis …

Genomic Prediction Enhanced Sparse Testing For Multi-Environment Trials, Diego Jarquin, Reka Howard, José Crossa, Yoseph Beyene, Manje Gowda, Johannes W.R. Martini, Giovanny Covarrubias Pazaran, Juan Burgueño, Angela Pacheco, Martin Grondona, Valentin Wimmer, Boddupalli M. Prasanna

Department of Agronomy and Horticulture: Faculty Publications

“Sparse testing” refers to reduced multi-environment breeding trials in which not all genotypes of interest are grown in each environment. Using genomic-enabled prediction and a model embracing genotype · environment interaction (GE), the non-observed genotype-in-environment combinations can be predicted. Consequently, the overall costs can be reduced and the testing capacities can be increased. The accuracy of predicting the unobserved data depends on different factors including (1) how many genotypes overlap between environments, (2) in how many environments each genotype is grown, and (3) which prediction method is used. In this research, we studied the predictive ability obtained when using a …

Effects Of Tank Contamination And Impact Of Drift-Reducing Agents On Weed Control In Response To Dicamba Applications, Milos Zaric

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

Availability of dicamba-tolerant (DT) crops from 2017 provided farmers with additional herbicides for weed control management in row crops. However, the technology alike this one has concerns regarding dicamba off-target movement (OTM) causing undesirable effects on sensitive vegetation. Even though dicamba has high water solubility OTM that has often been overlooked when it comes to unintended crop exposure is dicamba tank contamination. Considering the complexity of spraying equipment soybean response may be expected even when small amounts of residues are left in the spray equipment. Typically, the same field spray equipment is used to perform herbicide application through growing season …

Irrigation, Carbon Amelioration, Nitrogen, And Stover Removal Effects On Continuous Corn, Marty Schmer, Virginia L. Jin, Richard B. Ferguson, Brian J. Wienhold

Department of Agronomy and Horticulture: Faculty Publications

Corn (Zea mays L.) residue or stover is harvested as supplemental feed for livestock and is a potential feedstock for cellulosic biofuels. Limited information is available on corn stover removal effects on grain yield under different irrigation rates, nitrogen (N) fertilizer rates, and practices to maintain soil carbon (C) and minimize soil erosion. We evaluated potential interactions between irrigation rate (full or limited), C amelioration practices (cover crop, surface-applied manure, or no amelioration practice), fertilizer N management (125 or 200 kg N ha⁻¹), and stover removal (residue removal or no residue removal), on no-till continuous corn …

Investigation Of Imidazolinone Herbicide Towards Weedy Rice (Oryza Sativa L.) And Effects Of Its Residual Concentration In Soil, Yousef Bzour Mahyoub Izzat

Student Works (2020-2029)

Clearfield® Production System (CPS) for rice was introduced in Malaysia in 2010 as the current best solution to combat weedy rice (Oryza sativa) especially in direct-seeding system using imidazolinone-based herbicide (commercial name: OnDuty®). Although CPS has widely implemented in many rice fields in Malaysia, some of the major concerns of CPS are the probability of weedy rice to become resistant to OnDuty® and herbicide residual effects to rice agro-ecosystems and other environments. Therefore, this study was aimed to (i) evaluate the resistant status of selected weedy rice biotypes to imidazolinone herbicide; (ii) determine association between weedy rice morphological characteristics with …

Weed Control Efficacy Of Bio-Based Sprayable Mulch Films In Specialty Crop Systems, Eliott Gloeb

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

A sprayable bio-based mulch film (biofilm) could present a more sustainable weed management tool for specialty crop producers than conventional plastic mulch films while also offering flexibility in application patterns and timing. From 2017 to 2019, six greenhouse trials and four field trials were conducted at the University of Nebraska-Lincoln to study the effects of biofilm application on weed suppression and crop yields. Multiple application rates (0.81 L/m² - 9.78 L/m²) and application times (prior to weed emergence and post weed emergence) were tested. Corn starch, glycerol, keratin hydrolysate, corn gluten meal, corn zein, and isolated soy …

Soybean Response To Dicamba Exposure In Furrow Irrigation, Erin Grantz, Jung Ae Lee, Cammy Willett, Jason K. Norsworthy

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Sensitive crop exposure to residual dicamba in irrigation is a potential hazard in regions with overlapping use of transgenic dicamba-resistant crops and on-farm water storage-tailwater recovery (OFWS-TWR) systems. This field study examined non-dicamba-resistant soybean [Glycine max (L.) Merr.] for response to a dicamba dose gradient (7.6-630 g ae ha(-1)) in a furrow irrigation system. In a second study, growth stage and application timing effects were explored, with dicamba applied at 160 g ae ha(-1) in entirety to V3 or R1 soybean or split across exposure events. Plant injury 14 and 28 d after treatment (DAT) increased with dose, with significant …

Effects Of Endophyte Infection On The Response Of Achnatherum Inebrians To Water Stress And Nitrogen Fertilizer Under Controlled Growth Conditions, X. S. Li, X. Z. Zhang, X. Gu

IGC Proceedings (1977-2023)

No abstract provided.

Contribution Of Vegetative Reproducton Of Leymus Chinensis And Carex Duriuscula To Population Persistence During Restoration Succession After Flood Disturbance In The Songnen Plains, China, Haiyan Li, Yunfei Yang

IGC Proceedings (1977-2023)

No abstract provided.

Root System Ecology Of Shrubs In Qilian Mountains Alpine Rhododendron Shrubland, Wenxia Cao, Degang Zhang, Fuzeng Hong

IGC Proceedings (1977-2023)

No abstract provided.

Sustainable Recultivation And Land Use On Karst Regions--Shrub System, Z. Q. Lai, S, M. Qin, Y. R. Chen, S. Z. Qin, M. Pogacnik, X. F. Yi, N. Yao, Y. L. Liang, D. Kompan, X. Su

IGC Proceedings (1977-2023)

No abstract provided.

Sustainable Recultivation And Land Use On Karst Regions--Pasture System, Z. Q. Lai, Y. R. Chen, M. Pogacnik, S. Z. Qin, X. F. Yi, N. Yao, Y. L. Liang, J. H. Deng, X. F. Zhang, B. Zhang, H. J. Zhong, D. Kompan, X. J. Lu, X. Su, D. Y. Shen

IGC Proceedings (1977-2023)

No abstract provided.

A Model For Managing An Endangered Species In Sandhills Rangeland, Kay L. Kottas, James Stubbendieck

IGC Proceedings (1977-2023)

No abstract provided.

Characterizing Variation In Nitrogen Use Efficiency In Wheat Genotypes Using Proximal Canopy Sensing For Sustainable Wheat Production, Mohammed A. Naser, Raj Khosla, Louis Longchamps, Subash Dahal

Department of Agronomy and Horticulture: Faculty Publications

Global nitrogen use efficiency (NUE) for cereal production is marginal and is estimated to be about 33%. Remote sensing tools have tremendous potential for improving NUE in crops through efficient nitrogen management as well as the identification of high-NUE genotypes. The objectives of this study were (i) to identify and quantify the variation in NUE across 24 winter wheat genotypes (Triticum aestivum L.) and (ii) to determine if the normalized difference vegetation index (NDVI) could characterize the variability in NUE across wheat genotypes. This study was conducted in 2010 and 2011 in the semi-arid climate of Northeastern Colorado across dryland …

Experimental Increases In Diversity And Evenness Improve Productivity And Reduce Weed Invasion In Grassland Swards Over Three Years Across 12 European Sites, Laura Kirwan, Caroline Brophy, R. P. Collins, J. Connolly, J. A. Finn, A. Helgadottir, Andreas Lüscher, C. Porqueddu, M. T. Sebastià

IGC Proceedings (1977-2023)

No abstract provided.

Fire And Vegetation Change In Coastal Grasslands, South Africa, Kevin P. Kirkman, B. P. A. Dalton

IGC Proceedings (1977-2023)

No abstract provided.

Studies On The Autecology Of Astragalus Caragana F. Et M In The Esfahan Province In Ira, M. Khodagholi, M. Esmaili Sharif, A. Ghaedi, M. Borhand, M. T. Feyze

IGC Proceedings (1977-2023)

No abstract provided.

The Acacia Operation Project: A Pilot Activity For Combating Desertification And Improving The Livelihood Of Pastoralist In The Arid Rangelands Of Kenya, George A. Keya, M. Muga, B. Chikamai

IGC Proceedings (1977-2023)

No abstract provided.

Impacts Of Grazing, Wildfire And Drought On Rodent Populations In A Semi-Arid Grassland Of Southwestern North America, L. J. Kennedy, Z. F. Jones, C. E. Bock, J. H. Bock

IGC Proceedings (1977-2023)

No abstract provided.