Results 161 to 170 of about 335,415 (353)

Control System for the Navigation of the Agricultural Robots: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía   +3 more
wiley   +1 more source

Production Profitability of Ethanol from Alternative Feedstocks in the Texas Panhandle [PDF]

open access: yes
The potential of three feedstocks: grain sorghum, sweet sorghum, and switchgrass for ethanol production in the top 26 counties of the Texas Panhandle Region is analyzed using yield and production costs of feedstock, processing cost of feedstock, final ...
Almas, Lal K.   +3 more
core   +1 more source

Summer Annual Variety Trial [PDF]

open access: yes, 2016
Warm season grasses, such as sorghum x sudangrass crosses, sudangrass, and millet are high-yielding annuals that can provide quality forage in the hot summer months, when the cool season grasses that make up most pastures and hay meadows in the Northeast
Brigham, Nate   +3 more
core   +1 more source

Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites

open access: yesWildlife Biology, EarlyView.
Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer   +10 more
wiley   +1 more source

Summer Annual Variety Trial [PDF]

open access: yes, 2017
Warm season grasses, such as sudangrass, and millet can provide quality forage in the hot summer months, when the cool season grasses enter dormancy and decline in productivity. The addition of summer annuals into a rotation can provide a harvest of high-
Cummings, Erica   +3 more
core   +1 more source

US Farm Bill in 2025: Ad Hoc Assistance becomes an Expanded Multi‐Year Safety Net Loi agricole américaine de 2025 : l'aide ponctuelle devient un filet de sécurité pluriannuel élargi US Farm Bill in 2025: Ad‐hoc‐Beihilfen werden zu einem erweiterten mehrjährigen Sicherheitsnetz

open access: yesEuroChoices, EarlyView.
Summary The 2025 US farm bill converts ad hoc farm assistance since 2018 into a projected US$ 62 billion farm safety net expansion within multi‐year legislation. Usually stand‐alone with strong bipartisan support, the 2025 edition is largely provisions in a far‐reaching, partisan budget law. The farm safety net is expanded by cutting food assistance to
Carl Zulauf, David Orden
wiley   +1 more source

Putative involvement of lncRNA, miRNA, and mRNA‐mediated ceRNA network regulation in drought priming to enhance drought tolerance in Nicotiana tabacum

open access: yesAnnals of Applied Biology, EarlyView.
Drought priming increased the tolerance of Nicotiana tabacum to severe, recurring drought stress by modulating the expression of stress‐related genes via long non‐coding RNAs (lncRNAs), which acted as competing endogenous RNAs (ceRNAs) for microRNAs (miRNAs) and messenger RNAs (mRNAs).
Fatma Aydinoglu, Elif Yalvac
wiley   +1 more source

EVALUATING USE OF OUTLOOK INFORMATION IN GRAIN SORGHUM STORAGE DECISIONS [PDF]

open access: yes
This study examines grain sorghum storage decisions in the Texas Coastal Bend region. Decisions involving use and non-use of outlook information are compared using stochastic dominance criteria.
Black, J. Roy   +2 more
core   +1 more source

Field‐level crop choice responses to weather‐induced yield shocks in the US Corn Belt

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract As climate change increases the frequency and severity of extreme heat events, farmers are expected to face greater variability in crop yields. Using 10 million field‐level observations, this study examines how farmers in the US Corn Belt adjust corn–soybean rotation decisions in response to yield shocks largely driven by weather fluctuations.
Seunghyun Lee
wiley   +1 more source

The economic foundations of powersharing: Evidence from Africa

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract How—and with whom—do rulers share power? Existing research focuses on the strategic logic of powersharing. In this paper, we analyze its economic foundations. Powersharing is modeled as a subnational fiscal contract, in which rulers allocate political representation based on constituencies’ revenue potential. Empirically, we combine historical
Yannick I. Pengl, Philip Roessler
wiley   +1 more source

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