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Winter Wheat Cover Crop Increased Subsoil Organic Carbon In A Long-Term Cotton Cropping System In Tennessee, Rounak Patra, Debasish Saha, Sindhu Jagdamma

Biosystems Engineering and Soil Science Publications and Other Works

Long-term cover-cropping and no-tillage practices can facilitate soil organic carbon (SOC) accumulation in agroecosystems for soil health and climate mitigation benefits. However, the contribution of these conservation management practices to SOC gain from the subsoil layers is not been extensively studied. To understand this knowledge gap, it is essential to determine the distribution of total SOC and SOC fractions in response to management practices across the soil profile. Therefore, this study was conducted by leveraging a 40-year replicated field experiment in a continuous cotton (Gossypium hirsutum) system. The management treatments examined included three cover crop treatments: 1) hairy vetch, HV …

Labor Use And Labor Challenges Faced By Small Fruit And Vegetable Farms: The Case Of Tennessee, Justin L. Cross

Haslam Scholars Projects

United States (U.S.) fruit and vegetable farms depend heavily on labor for the production of the crops they grow and sell. In recent years, it has become increasingly difficult for farms to obtain the labor they need to produce their crops. Therefore, labor management strategies have become critical in determining the profitability and long-term sustainability of farms specializing in the production of fruits and vegetables. These strategies are even more significant for smaller farms that face resource constraints that inhibit their use of alternative labor sources (e.g., migrant workers) or their ability to reduce their reliance on labor through mechanization. …

Cassava (Manihot Esculenta Crantz) Tuber Quality As Measured By Starch And Cyanide (Hcn) Affected By Nitrogen, Phosphorus, And Potassium Fertilizer Rates, Ivan Bernardo Cuvaca, Neal Eash, Svetlana Zivanovic, Dayton Mcgregor Lambert, Forbes R. Walker, B. Rustrick

Biosystems Engineering and Soil Science Publications and Other Works

Cassava (Manihot esculenta Crantz) is an important subsistence crop for many poor rural families in Africa. Cassava contains cyanogenic glucosides (linamarin and lotaustralin) which liberate hydrogen cyanide (HCN) during tuber processing. Once liberated, HCN attaches to the processed tuber. Continuous consumption of processed tuber containing high HCN concentration coupled with low protein intake causes Konzo – a paralyzing disorder that impacts children and women of childbearing age. There are ways to reduce HCN concentration during tuber processing; however, this can also reduce the overall starch content in the cassava tuber. A study comprising twenty treatments consisting of different combinations of …

A Short-Term Assessment Of Carbon Dioxide Fluxes Under Contrasting Agricultural And Soil Management Practices In Zimbabwe, Deb O'Dell, Thomas J. Sauer, Bruce B. Hicks, Christian Thierfelder, Dayton M. Lambert, Joanne Logan, Neal S. Eash

Biosystems Engineering and Soil Science Publications and Other Works

Two of the biggest problems facing humankind are feeding an exponentially growing human population and preventing the accumulation of atmospheric greenhouse gases and its climate change consequences. Refined agricultural practices could address both of these problems. The research addressed here is an exploration of the efficacy of alternative agricultural practices in sequestering carbon (C). The study was conducted in Zimbabwe with the intent to (a) demonstrate the utility of micrometeorological methods for measuring carbon dioxide (CO2) exchange between the surface and the atmosphere in the short-term, and (b) to quantify differences in such exchange rates for a variety of agricultural …

Conservation Agriculture And Household Wellbeing: A Non-Causal Comparison Among Smallholder Farmers In Mozambique, W. E. Mcnair, Dayton Mcgregor Lambert, Neal S. Eash

Biosystems Engineering and Soil Science Publications and Other Works

This research examines the relationship between household wellbeing and the use of conservation agriculture (CA) by smallholder farmers in Mozambique. Wellbeing indicators are regressed on household demographic attributes, farm management practices, and a variable indicating farmer adoption of CA. Findings suggest that households using CA have higher wellbeing index scores related to farm tool and implement ownership and housing material quality, but lower index scores related to livestock ownership. The findings present an encouraging, baseline picture of the association between the use of CA technologies by farmers in Mozambique and household wellbeing.

Synchronization Of Developmental Processes And Defense Signaling By Growth Regulating Transcription Factors, Jinyi Liu, John Hollis Rice, Nana Chen, Thomas J. Baum, Tarek Hewezi

Plant Sciences Publications and Other Works

Growth regulating factors (GRFs) are a conserved class of transcription factor in seed plants. GRFs are involved in various aspects of tissue differentiation and organ development. The implication of GRFs in biotic stress response has also been recently reported, suggesting a role of these transcription factors in coordinating the interaction between developmental processes and defense dynamics. However, the molecular mechanisms by which GRFs mediate the overlaps between defense signaling and developmental pathways are elusive. Here, we report large scale identification of putative target candidates of Arabidopsis GRF1 and GRF3 by comparing mRNA profiles of the grf1/grf2/grf3 triple mutant and those …

W285 Cotton Variety Guide 2011, Chris L. Main, Fred Allen

Field & Commercial Crops

Version 2.0

Pb1742 Tennessee Cotton Variety Test Results 2011, Chris L. Main, Fred L. Allen

Field & Commercial Crops

Version 5.0

Sp503-I Insects: Identifying The Flatheaded Appletree Borer And Other Buprestid Beetle Species In Tennessee, Jason A. Hansen, Frank A. Hale, William E. Klingeman

Commercial Horticulture

Version 2.0

W283 Should Tennessee Tobacco Growers Invest In Irrigation, Fertigation Or Plastic Mulch?, Brian G. Leib, Eric F. Caldwell, Hubert J. Savoy, John R. Buchanan

Field & Commercial Crops

Version 2.0

W205 Controlling Winter Annual Broadleaf Weeds, James T. Brosnan, Greg Breeden

Commercial Horticulture

Version 3.0

W269 Weed Control In Centipedegrass, Gregory K. Breeden, James T. Brosnan, Thomas J. Samples

Commercial Horticulture

Turfgrass Science factsheet

W267 White Clover, Gregory K. Breeden, James T. Brosnan

Commercial Horticulture

Turfgrass Science factsheet

Version 2.0

W218 Trade Names Of Herbicides Labeled For Use In Turf, James T. Brosnan, Greg Breeden

Commercial Horticulture

Version 3.0

W266 Ground Ivy, Gregory K. Breeden, James T. Brosnan

Commercial Horticulture

Turfgrass Science factsheet

Version 3.0

Res Rep 12-01 Wheat And Oat Variety Performance Tests In Tennessee 2011, Fred L. Allen, Richard D. Johnson, Robert C. Williams Jr., Virginia Sykes, Chris Main

Field & Commercial Crops

Version 2.0

W277 Japanese Maple Scale: An Important New Insect Pest In The Nursery And Landscape, Amy Fulcher, Frank Hale, Mark Halcomb

Commercial Horticulture

Version 5.0

W276 Rain Barrels Make Good Sense, Brian Leib

Home Garden, Lawn, and Landscape

Version 2.0

W273 Black Rot Of Crucifers, Steve Bost

Insects, Pests, Plant Diseases and Weeds

Plant Diseases series

Version 1.0

W274 Black Root Rot Of Tobacco, Steve Bost, Darrell Hensley

Insects, Pests, Plant Diseases and Weeds

Version 2.0

W275 Sooty Blotch And Flyspeck Of Apple, Steve Bost

Insects, Pests, Plant Diseases and Weeds

Plant Diseases series

Version 1.0

W272 Irish Potato Scab, Steve Bost

Insects, Pests, Plant Diseases and Weeds

Plant Diseases series

Version 2.0

W270 Safety Of Herbicides Compared To Other Commonly Used Chemicals Pub Number W270, Greg Breeden, James T. Brosnan, Greg Armel, Joseph Thomas

Commercial Horticulture

Turfgrass Science factsheet

Version 2.0

Sp290-O Insects: Pine Bark Adelgid, Frank A. Hale

Insects, Pests, Plant Diseases and Weeds

Version 4.0

Pb378 Forage & Field Crop Seeding Guide For Tennessee, Gary Bates, Craig Harper, Fred Allen

Field & Commercial Crops

Version 2.0

Sp704-A Potential Impacts On Wildlife Of Switchgrass Grown For Biofuels, Craig A. Harper, Patrick D. Keyser

Biofuels

Version 3.0

Sp701-B Using Switchgrass For Forage, Gary Bates, Pat Keyser, Craig Harper, John Waller

Biofuels

Version 2.0

Pb1751 A Southern Pine Management Guide For Tennessee Landowners, Wayne K. Clatterbuck

Forestry, Trees, and Timber

Version 2.0

Sp701-B Using Switchgrass For Forage, Gary Bates, Pat Keyser, Craig Harper, John Waller

Forages

Version 2.0

W265 Pasture Herbicide Stewardship, G. Neil Rhodes, Jr., William P. Phillips, Jr.

Field & Commercial Crops

Pasture Weed factsheet

Version 2.0