Application of automation and computerisation to a soil testing laboratory

Abstract

The soil testing laboratory operated by the Ministry of Agriculture and Fisheries at Ruakura Soil and Plant Research Station analyses about 45 000 soil samples annually. Tests include soil pH and determination of plant available P, K, Mg, Ca and Na. This paper outlines a development programme in which laboratory automation and computers have been combined to increase the analytical capacity of the laboratory and to prepare it to operate a fully computerised fertiliser recommendation scheme. Sample and data handling systems are described for the various procedures.

In addition to increased efficiency, benefits from the developments include greater accuracy and precision, flexibility in laboratory operation and improved staff morale.