Tag: spectral diagnostics

Preliminary Lab Results Show Low Phosphorus Across Sentinel Sites

by | December 5, 2011
Category: Blog

Reference lab data from the AfSIS sentinel sites analyzed so far show an over-riding constraint of low available phosphorus ( The six kernel density plots below show the distribution of key soil fertility constraints at AfSIS sentinel sites. The vertical lines in each plot show critical limits from left to right of low and high […]

ICRAF Soil-Plant Lab Processed 8,000 AfSIS Soil Samples

by | December 5, 2011
Category: Blog

Here at the Soil-Plant Spectral Diagnostics Laboratory at the World Agroforestry Centre (ICRAF) in Nairobi, Kenya, we have received over 4,000 AfSIS soil samples from sentinel sites and diagnostic trials over the past six months, with a total of over 15,000 samples received since the start of the AfSIS project in 2008. These samples have […]