The use of airborne gamma-ray imagery for mapping soils and understanding landscape processes

J Wilford, B Minty - Developments in soil science, 2006 - Elsevier
Airborne gamma-ray spectrometry is a passive remote sensing technique that measures the
natural emission of gamma-ray radiation from the upper 30 cm of the earth's surface. The …

A global analysis of groundwater recharge for vegetation, climate, and soils

JH Kim, RB Jackson - Vadose Zone Journal, 2012 - Wiley Online Library
Because groundwater is an essential resource for people and ecosystems, a better
understanding is needed of the fundamental controls on recharge and its interactions with …

Determining the causes of spatial and temporal variability of wheat yields at sub-field scale using a new method of upscaling a crop model

MTF Wong, S Asseng - Plant and Soil, 2006 - Springer
Wheat yields in the Mediterranean climate of Western and Southern Australia are often
limited by water. Our measurements on a 70 ha growers field showed linear relationships …

[PDF][PDF] Precision farming: challenges and future directions

A Dobermann, S Blackmore, SE Cook… - Proceedings of the 4th …, 2004 - researchgate.net
Precision farming is a systems approach to managing soils and crops to reduce decision
uncertainty through better understanding and management of spatial and temporal …

[PDF][PDF] Agricultural Water Productivity: Estimation at plot, farm and basin scale

S Cook, F Gichuki, H Turral - 2006 - ageconsearch.umn.edu
The concept of water productivity (WP) is offered by Kijne et al.(2003) as a robust measure of
the ability of agricultural systems to convert water into food. While it was used primarily to …

[PDF][PDF] Report on the meta-analysis of crop modelling for climate change and food security survey

M Rivington, J Koo - 2010 - cgspace.cgiar.org
This survey of crop modelling was commissioned by the Consultative Group on International
Agricultural Research (CGIAR) and Earth Systems Science Partnership (ESSP) sponsored …

Yield and environmental benefits of ameliorating subsoil constraints under variable rainfall in a Mediterranean environment

MTF Wong, S Asseng - Plant and Soil, 2007 - Springer
Subsoil constraints to root growth exacerbate frequent water and nutrient limitations to crop
yields in Mediterranean-type environments. Amelioration of subsoil constraints can relieve …

Determining the within-field yield variability from seasonally changing soil conditions

E Boenecke, E Lueck, J Ruehlmann, R Gruendling… - Precision …, 2018 - Springer
Crop yield variations are strongly influenced by the spatial and temporal availabilities of
water and nitrogen in the soil during the crop growth season. To estimate the quantities and …

Phosphorus forms in soil solution and leachate of contrasting soil profiles and their implications for P mobility

R Sharma, RW Bell, MTF Wong - Journal of Soils and Sediments, 2015 - Springer
Purpose Policy changes to reduce the transport of phosphorus (P) from agricultural land
have triggered research in many parts of the world to improve understanding of processes …

Using soil and climatic data to estimate the performance of trees, carbon sequestration and recharge potential at the catchment scale

RJ Harper, KRJ Smettem… - Australian Journal of …, 2005 - CSIRO Publishing
There is considerable interest in integrating deep-rooted perennial plants into the dryland
farming systems of southern Australia as soil, water supplies and biodiversity are continually …