01044nam a2200181 a 450000100080000000500110000800800410001910000170006024501430007726001740022052003620039465000130075665000140076965000180078365000210080165000170082270000230083921150292019-11-27 2019 bl uuuu u00u1 u #d1 aPEREZ, D. V. aAnalytical quality program of soil fertility laboratories that adopt Embrapa methods in Brazil - 2016/2017 results.h[electronic resource] aIn: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings... Viçosa, MG: SBCS, 2019. v. 2, p. 401. WCSS 2018.c2018 aAccuracy and precision of soil fertility results is constantly questioned by customers. To promote its credibility, laboratories generally participated of external performance testing programs. The analytical quality program of soil fertility laboratories that adopt the Embrapa methods (PAQLF) is a voluntary sample-exchange program established since 1992. aAccuracy aPrecision aSoil analysis aAnálise do Solo aLaboratório1 aSALDANHA, M. F. C.