Results 51 to 60 of about 7,210 (295)

Assessing Crop Coefficients for Natural Vegetated Areas Using Satellite Data and Eddy Covariance Stations

Sensors, 2017
The Food and Agricultural Organization (FAO) method for potential evapotranspiration assessment is based on the crop coefficient, which allows one to relate the reference evapotranspiration of well irrigated grass to the potential evapotranspiration of ...
Chiara Corbari, Giovanni Ravazzani, Marta Galvagno, Edoardo Cremonese, Marco Mancini   +4 more
doaj   +1 more source

Differences in Spatiotemporal Variability of Potential and Reference Crop Evapotranspirations

Water, 2022
Potential evapotranspiration (ETp) and reference crop evapotranspiration (ETo) are two key parameters in hydrology, meteorology, and agronomy. ETp and ETo are related to each other but have different meanings and applications. In this study, the ETp and ETo were distinguished and calculated with the Penman and FAO56 PM equations using the weather data ...
Keyu Xiang, Xuan Zhang, Xiaofeng Peng, Ning Yao, Asim Biswas, Deli Liu, Yufeng Zou, Bakhtiyor Pulatov, Yi Li, Fenggui Liu   +9 more
openaire   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

The impact of climatic variability over the period 1961- 1990 on the soil water balance of upland soils in the North East Arid Zone of Nigeria [PDF]

, 1991
Over the period 1961 – 90 the North East Arid Zone of Nigeria experienced a decline in annual rainfall totals and increased aridity which placed increasing pressure on rain fed, millet-based farming systems.
Hess, Tim M.
core  

The water relations and irrigation requirements of sugar cane (Saccharum officinarum): a review. [PDF]

, 2011
The results of research on the water relations and irrigation needs of sugar cane are collated and summarized in an attempt to link fundamental studies on crop physiology to irrigation practices.
M. K. V. CARR, Carr, M. K. V., J. W. KNOX, Knox, Jerry W.   +3 more
core   +1 more source

The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa

Agribusiness, EarlyView.
ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor, Bright Owusu Asante, David Boansi, Victor Owusu   +3 more
wiley   +1 more source

Crop water use and crop coefficients of sunflower in the U.S. Central Great Plains

Agricultural Water Management
Sunflower is a drought-tolerant crop commonly grown as a rainfed crop in semi-arid areas, but irrigation is required to produce maximum yield. The purpose of this study was to determine sunflower water requirements and crop coefficients to facilitate ...
Thomas J. Trout, Kendall C. DeJonge, Huihui Zhang   +2 more
doaj   +1 more source

Comparison of the Efficiency of Linear and Non-linear Time Series Models in Simulation and Prediction of Reference Evapotranspiration [PDF]

نشریه جغرافیا و برنامه‌ریزی, 2018
Reference evapotranspiration (ET0) is one of the important factors to determine crop water requirement. Accurate estimation of reference evapotranspiration (ET0) value has a very important role in water resources management and optimizing agricultural ...
Kamran Zeinalzadeh, Neda Khanmohammadi
doaj   +1 more source

Evaporation in fen wetlands [PDF]

, 2011
Wicken Fen represents a remnant of the once extensive peat fenlands of East Anglia, which survived large-scale drainage efforts intended to bring land into agricultural production due to its importance within the local economy and subsequently as a site ...
Kelvin, J.
core  

A mosaic of microclimates: biodiversity outcomes and wildlife habitat potential in large‐scale solar facilities

Biological Reviews, EarlyView.
ABSTRACT The rapid global expansion of photovoltaic (PV) solar facilities, now comprising nearly 80% of the recent and projected growth of renewable electricity, represents one of the most significant land‐use changes of the 21st century. While PV facilities are critical for decarbonising energy systems, their large spatial footprint and infrastructure
Tom Armstrong, Caleb L. Loughran, Joshua R. Ennen, Kristoffer H. Wild, Eric J. Nordberg   +4 more
wiley   +1 more source