Results 41 to 50 of about 961,050 (204)

Scarring of Florida’s seagrasses: assessment and management options [PDF]

open access: yes, 1995
Management programs that address scarring of seagrasses should be based on an approach that involves (1) education, (2) channel marking, (3) increased enforcement, and (4) limited-motoring zones. Aerial monitoring and photography of the managed area
Crewz, David W.   +3 more
core  

Development of Threshold Levels and a Climate-Sensitivity Model of the Hydrological Regime of the High-Altitude Catchment of the Western Himalayas, Pakistan [PDF]

open access: yes, 2019
Water shortages in Pakistan are among the most severe in the world, and its water resources are decreasing significantly due to the prevailing hydro-meteorological conditions.
Adnan, Muhammad   +8 more
core   +2 more sources

Topography impact on nutrition content in soil and yield

open access: yesPlant, Soil and Environment, 2008
The main aim of this study was to determine the dependence of yield and selected soil properties on topography of the experimental field by using topographical data (elevation, slope and flow accumulation).
J. Kumhálová   +4 more
doaj   +1 more source

The Variable-Rate Input Application Decision for Multiple Inputs with Interactions [PDF]

open access: yes
Research has evaluated the relative profitability of variable-rate (VRT) versus uniform-rate (URT) application of a single input in fields with multiple management zones.
English, Burton C.   +2 more
core   +1 more source

Water quality assessment, trophic classification and water resources management [PDF]

open access: yes, 2010
Quantification of water quality (WQ) is an integral part of scientifically based water resources management. The main objective of this study was comparative analysis of two approaches applied for quantitative assessment of WQ: the trophic level index ...
Gal, Gideon   +4 more
core   +2 more sources

Soil and Plant Nitrogen Management Indices Related to Within-Field Spatial Variability

open access: yesAgronomy
Field zones at risk of low nitrogen use efficiency (NUE) can be identified by analyzing in-field spatial variability. This hypothesis was validated by analyzing soil mineral nitrogen (Nmin) and several plant and soil N management indices.
Remigiusz Łukowiak   +2 more
doaj   +1 more source

A Combined Approach of Sensor Data Fusion and Multivariate Geostatistics for Delineation of Homogeneous Zones in an Agricultural Field

open access: yesSensors, 2017
To assess spatial variability at the very fine scale required by Precision Agriculture, different proximal and remote sensors have been used. They provide large amounts and different types of data which need to be combined.
Annamaria Castrignanò   +6 more
doaj   +1 more source

A MATHEMATICAL PROGRAMMING MODEL FOR OPTIMAL MANAGEMENT ZONE DELINEATION IN PRECISION AGRICULTURE [PDF]

open access: yes
The identification of optimal management zones, including optimal uniform grid size, is a complex issue central to the successful implementation of variable rate input application.
Dillon, Carl R.
core   +1 more source

Urban encounters: juxtapositions of difference and the communicative interface of global cities [PDF]

open access: yes, 2008
This article explores the communicative interface of global cities, especially as it is shaped in the juxtapositions of difference in culturally diverse urban neighbourhoods.
Amin, A.   +12 more
core   +1 more source

Accuracy of Various Sampling Techniques for Precision Agriculture: A Case Study in Brazil

open access: yesAgriculture
Precision agriculture techniques contribute to optimizing the use of agricultural inputs, as they consider the spatial and temporal variability in the production factors.
Domingos Sárvio Magalhães Valente   +8 more
doaj   +1 more source

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