Agronomy and Crop Sciences Commons^™

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2011, Leah English, Jennie Popp, Wayne Miller

AAES Research Reports and Research Bulletins

This report is the eighth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2011. The total economic contribution of agriculture (direct, indirect, and induced effects) to value added, employment, and labor income was estimated using the Impact Analysis for Planning System (IMPLAN). The economic contributions of agricultural production and processing …

Observation-Based Algorithm Development For Subsurface Hydrology In Northern Temperate Wetlands, Chun-Mei Chiu

Open Access Dissertations

This study investigates wetland subsurface hydrology, as well as biogeochemistry - which is strongly influenced by water and temperature dynamics - as these interactions are expected to be highly significant, yet remain poorly represented in current ecosystem and climate models.

Northern wetlands have received widespread public attention due to steadily increasing summer mean global temperatures, extreme precipitation events and higher rates of natural greenhouse gas emissions, as well as the significant impacts on them due to human activities. The goal of my graduate research has been to improve quantification of the role of subsurface hydrology in northern wetlands by using …

Systems Evaluation Of Shallow Anhydrous Ammonia Placements, Rates, And Timing On Maize Plant Uniformity, Yield And N Use Efficiency, Péter Kovács

Open Access Dissertations

Farmers face increasing expectations from society to be more environmentally conscious and energy efficient with their fertilizer management practices during maize (Zea mays L.) production. With the advent of precision guidance systems, maize farmers in various tillage systems have more options in pre-plant nutrient banding relative to the intended crop rows or throughout the entire growing season. Field studies were conducted between 2010 and 2012 near West Lafayette, IN to identify best management practices to enhance maize plant uniformity, yield and nitrogen (N) efficiencies.

Anhydrous ammonia (NH₃) placement during pre-plant application is of interest because of concerns …

A Study Of The Historical Development And Horticultural Practices Of A Public Garden, Steven J. Nosal

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

This project examined the historical development and the horticultural practices in the public gardens of the Parks Department in Lincoln, Neb. It concentrates on one particular place to illustrate development and practice issues: the Sunken Gardens. This garden was built during the Depression in the 1930s as a place of beauty for all of the citizens of Lincoln. Although the Sunken Garden covers only 1.5 acres, it has remained a very important part of Nebraska's capital city for more than 64 years.

The Effects Of Planting Techniques On Maize Grain Yield And Silage Production, Tyler D. Kaufman

Theses and Dissertations

This thesis is a comprehensive analysis of the effects of seed orientation, row direction and planting population on grain yield, kernel composition, and silage yield and composition. Producers are striving to increase profit by efficiently using their available land area to maximize crop production. However, little research is available testing the effect of seed orientation on grain or silage production. Quantifying the impacts of seed orientation and row direction on grain and silage is essential for maximum crop production. Dissemination of the results should benefit grain and silage producer.

Two experiments were conducted to evaluate the effects of manipulating seed …

Economic Impact Assessment Of Sorghum, Millet And Other Grains Crsp: Sorghum And Millet Germplasm Development Research, Timothy J. Dalton, Yacob A. Zereyesus

INTSORMIL Scientific Publications

As a result of the offsetting effect of a rise in productivity and decline in harvested area, the world sorghum production (tonnes) has been on a horizontal trend. The combined effect of a decline in area harvested and a rise in yield productivity have resulted in an overall increase in world millet production (tonnes) trend.

During the last three decades, significant numbers of breeding lines, parental stocks, germplasm and cultivars have been released through INTSORMIL/host countries collaboration around the world. Some of the remarkable breeding success stories include the release of the first hybrid sorghum Hageen Dura (HD-1) and Striga …

Biology And Control Of Common Purslane (Portulaca Oleracea L.), Christopher A. Proctor

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

Common purslane (Portulaca oleracea L.) is a summer annual with wide geographic and environmental distribution. Purslane is typically regarded as a weed in North America, but it is consumed as a vegetable in many parts of the world. One of the characteristics that make purslane difficult to control as a weed is its ability to vegetatively reproduce. Severed sections of purslane stem containing a node will produce adventitious roots from the cut end of the stem. Isoxaben and simazine were the only two effective preemergence herbicides for controlling purslane in our studies when applied at maximum or one-half maximum …

Report Card On Sustainable Natural Resource Use In Agriculture, Robert Summers, David Weaver

All other publications

Condition and trend Nutrients, such as phosphorus (P), are essential for profitable agriculture in the south-west of WA; however, excess P – more than is required for optimal production – is stored in many agricultural soils. On average, pasture soils and arable soils contain 1.3 times and 1.6 times respectively, as much P as is required for optimal production. Production in P-enriched soils is more likely to be constrained by soil acidity (50–60% of pasture and arable soils), potassium (K) (50% of pasture soils and less than 10% of arable soils), and sulphur (S) (30% of pasture soils). Management implications …

Summaries Of Arkansas Cotton Research 2012, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

The Benefits Of Tannin-Containing Forages, Jennifer W. Macadam, Joe Brummer, Anowarul Islam, Glenn Shewmaker

All Current Publications

This fact sheet describes tannins, a group of chemical compounds produced by a number of broadleaf forage plants, that can bind proteins.

Pertumbuhan Dan Hasil Gandum (Triticum Aestivum L.) Yang Diberi Perlakuan Kalsium Klorida Dan Asam Salisilat Yang Diadaptasikan Di Dataran Medium Jatinangor, Fiky Yulianto Wicaksono, Tati Nurmala, Sumadi

Jurnal Kultivasi

The objective of the research was to determine maximum yield of wheat that wereplanted on medium land which were treated calcium chloride and salicylic acid with an optimum concentration. The experiment was conducted from March untilJuly 2011 at The Experimental Station of Faculty of Agriculture, University of Padjadjaran, Jatinangor with an altitude of about 750 metres above sea level. The experimental design used was Randomized Block Design with factorial treatment design which consisted of two factors and replicated three times. The first factor was concentrations of calcium chloride which consisted of three levels: 0 M, 10-2 M, and 2 x …

Respon Tanaman Kelapa Sawit Terhadap Bakteri Pelarut Fosfat Dan Bakteri Penambat Nitrogen Di Pembibitan Awal (Pre Nursery), Intan Ratna Dewi Anjarsari, Mochamad Arief Soleh, Erni Suminar

Jurnal Kultivasi

The objective of this experiment was to study response of oil palm seedlings in prenursery to Phosfat solubilizing bacteria and nitogen fixaxing bacteria. This experiment was conducted at experimental field, Jatinangor, KabupatenSumedang from April until October 2012. Experimental field located at altitude 753 m above sea level with rainfall C type according to the classification of Schmidt and Fergusson. Experimental design was the simple pattern of Randomized Design Group (RDG), consisting of twelve treatment and repeated three times. The treatment were Without inoculation; Azotobacter 20 mL/plant; BPF 20 mL/plant; 10 mL/plant BPF + 10 ml/plant Azotobacter; 10mL/plant BPF + 15 …

Pengaruh Zat Pengatur Tumbuhan Terhadap Pertumbuhan Dan Hasil Tanaman Jagung Manis (Zea Mays L. Saccharatasturt ) Serta Efek Sampingannya Terhadap Pertumbuhan Gulma, Yayan Sumekar

Jurnal Kultivasi

The research aims to know the effect of growth regulators to sweet corn production and to know the side effect in decreasing the weed growth. This research was done in March 2003 to October 2003 at green house of Agriculutura Faculty, Padjadjaran University, Subdistrict Jatinangor, Regency Sumedang. The research design used is Completely Randomized Block consisting of seven (7) treatmen and three (3) repetition. Those are Atonik 0,5 ml/3 lt water; Atonik 1,0 ml/3 lt water; Atonik 1,5 ml/3 lt water; Hydrasil 0,1 ml/1 lt water; Hydrasil 0,2 ml/1 lt water; Hydrasil 0,3 waterl/1 lt air; and control (without growth …

Pertumbuhan Bibit Batang Bawah Karet (Hevea Brasiliensis (Willd.) Mull.-Arg.) Klon Pr 261 Yang Diberi Fungi Mikoriza Arbuskula (Fma) Dan Pupuk Fosfat, Cucu Suherman, Ari Wahyudi

Jurnal Kultivasi

This Research aims to determine the effect of interaction between the dosage AMF and dosage of P fertilizer on growth of rootstock seedling of rubber Clone PR 261. The experiments started in April until August 2009 at Cikumpay Plantation, PT. Perkebunan Nusantara VIII, Purwakarta, West Java, with altitude ± 70 m above sea level. Randomize Block Design (RBD) with factorial pattern used in this experiment, consisted of two treatment factors and repeated three times. The first factor was the dosage of AMF, consisted of four dosages level, without AMF, 10 g/seedling, 15 g/seedling and 20 g/seedling. The second factor was …

Glufosinate Tolerance Of Widestrike And Liberty-Link Cotton Varieties And The Recoverability Of Upland Cotton Following Terminal Removal, Jason Sweeney

All Theses

Sweeney, Jason Allen. Glufosinate Tolerance of WideStrike¨ and LibertyLink¨ Cotton Varieties and the Recoverability of Cotton Following Terminal Removal. (Under the direction of Dr. Michael A. Jones).
To evaluate the effects of topical application of glufosinate (Liberty 280SL, 24.5% glufosinate-ammonium salt) on cotton varieties with WideStrike¨ and LibertyLink¨ technologies, two field experiments were conducted in 2011 and 2012 at the Pee Dee Research and Education Center (PDREC) in Florence, SC. In the first experiment, five WideStrike¨ cotton varieties (Phytogen [PHY] 367WRF, PHY 375WRF, PHY 440W, PHY 499WRF, and PHY 565WRF) and three LibertyLink¨ cotton varieties (FiberMax [FM] 1773LLB2, FM 1845LLB2, …

High Yield Soybean Management: Planting Practices, Nutrient Supply, And Growth Modification, Evan Sonderegger

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

Growers are constantly seeking ways to improve yield in soybean [Glycine max (L.) Merr.]. There has been much interest in the use of selected alternative practices to maximize soybean yield. These practices include planting soybean at higher than recommended seeding rates, planting soybean in narrow rows, breaking apical dominance to induce branching, application of strobilurin fungicides prophylactically to minimize disease and extend the seed filling period, the use of N fertilizer both in furrow and foliar applied, and the use of seed treatments to promote early stand establishment and health. Field studies were conducted at the University of Nebraska …

B.R. Wells Rice Research Studies 2012, R. J. Norman, K.A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Arkansas Wheat Cultivar Performance Tests 2012-2013, R. E. Mason, R. G. Miller, J. P. Kelley, E. A. Milus

Arkansas Agricultural Experiment Station Research Series

Wheat cultivar performance tests are conducted each year in Arkansas by the Arkansas Agricultural Experiment Station, Department of Crop, Soil and Environmental Sciences. The tests provide information to companies developing cultivars and/or marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for small-grain producers.

Establishment Guide For Sub-Tropical Grasses : Key Steps To Success, Geoff Allan Moore, Ronald J. Yates, Phil Barrett-Lennard, Phil Nichols, Brad Wintle, John Titterington, Chris Loo

Bulletins 4000 -

Sub-tropical perennial grasses are now widely sown in the Northern Agricultural region (NAR) and on the south coast of Western Australia (WA). Since 2000, more than 50 000 ha have been sown to perennial grasses in the NAR and about 150 000 ha on the south coast, mainly kikuyu.

Effects Of Varying Spring Hollow Tine Aerification Size And Timing On Bentgrass Greens, Lewis Hubbard Jr

All Dissertations

The desire to maintain optimal turfgrass and surface properties often leads turfgrass managers to minimize impact from cultural practices like hollow tine aerification (HTA). Comprehensive research is essential to developing aerification programs which allow optimal use of turfgrass surfaces without sacrificing overall turf health.
A two-year field experiment was conducted on a 14-year-old U.S. Golf Association (USGA)-specified Crenshaw creeping bentgrass [Agrostis stolonifera L. var palustris (Huds.)] research putting green in Clemson, SC, to evaluate the effects of varying spring HTA size and timing on turfgrass, surface, organic matter (OM), and soil properties.
Spring HTA treatments included 1.2-cm i.d. tines spaced …