Results 61 to 70 of about 961,050 (204)

A Guide to Target Zones [PDF]

open access: yes
This paper identifies key issues surrounding the advisability and practicality of adopting "target zones" for the exchange rates of major currencies. Pour fundamental questions concerning the definition of and the rationale for target zones are addressed:
Jacob A. Frenkel, Morris Goldstein
core  

The Variable-Rate Decision for Multiple Inputs with Multiple Management Zones [PDF]

open access: yes
Research has evaluated the relative profitability of variable-rate versus uniform-rate application of a single input in fields with multiple management zones. This paper addresses the variable-rate decision for multiple inputs.
English, Burton C.   +2 more
core   +1 more source

Life Monza: project description and actions’ updating [PDF]

open access: yes, 2018
The introduction of Low Emission Zones, urban areas subject to road traffic restrictions in order to ensure compliance with the air pollutants limit values set by the European Directive on ambient air quality (2008/50/EC), is a common and well ...
Antonio, Fasanella   +14 more
core   +1 more source

Differential adaptation strategies by agro-ecological zones in African livestock management [PDF]

open access: yes
This paper examines how farmers have adapted their livestock operation to the current climate in each agro-ecological zone in Africa. The authors examine how climate has affected the farmer's choice to raise livestock or not and the choice of animal ...
Dinar, Ariel   +3 more
core  

Regional analysis of crop and natural vegetation in West Africa based on NDVI metrics [PDF]

open access: yes, 2014
In West Africa, rainfall variability dynamics are often considered as the major driver of vegetation production. Land use shifts have also to be taken into account when analyzing changes in vegetation production.
Bégué, Agnès   +2 more
core  

Spatial and multivariate analysis of soybean productivity and soil physical-chemical attributes

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
The objective of this study was to evaluate the spatial variability of soybean yield, carbon stock, and soil physical attributes using multivariate and geostatistical techniques.
Ricardo N. Buss   +5 more
doaj   +1 more source

Computational aspects of zonal algorithms for solving the compressible Navier-Stokes equations in three dimensions [PDF]

open access: yes
Transonic flow fields about wing geometries are computed using an Euler/Navier-Stokes approach in which the flow field is divided into several zones.
Chaderjian, N. M.   +5 more
core   +1 more source

Temporal Stability of Management Zone Patterns: Case Study with Contact and Non-Contact Soil Electrical Conductivity Sensors in Dryland Pastures

open access: yesSensors
Precision agriculture (PA) intends to validate technological tools that capture soil and crop spatial variability, which constitute the basis for the establishment of differentiated management zones (MZs).
João Serrano   +5 more
doaj   +1 more source

Clustering Tools for Integration of Satellite Remote Sensing Imagery and Proximal Soil Sensing Data

open access: yesRemote Sensing, 2019
Remote sensing (RS) and proximal soil sensing (PSS) technologies offer an advanced array of methods for obtaining soil property information and determining soil variability for precision agriculture.
Md Saifuzzaman   +7 more
doaj   +1 more source

Shade and leaf retention: an aspect of effective Coffee Leaf Rust management [PDF]

open access: yes, 2019
Coffee Leaf Rust (CLR) has been reported in over 50 coffee growing countries causing significant economic losses in Arabica coffee. The aim of this study was to determine the effect of shade on leaf life span in relation to severity of coffee leaf rust ...
Alwora, G.   +4 more
core  

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