Developing a better system for assessing the nutritional status of peach and nectarine trees. R.S. Johnson. (2005) CPSC.
Excess nitrogen raises nectarine susceptibility to disease and insects. K.M. Daane, R.S. Johnson, T.J. Michailides, C.H. Crisosto, J.W. Dlott, H.T. Ramirez, G.Y. Yokota, D.P. Morgan. (1995) California Agriculture 49(4):13-18.
Improving the procedure for nutrient sampling in stone fruit trees. R.S. Johnson. (2007) FREP.
Refining stone fruit deficiency and sufficiency nutrient levels. R.S. Johnson, C.H. Crisosto. (2005) CPSC.
CPSC = California Plant and Soil Conference
FFTC ASPAC = Food & Fertilizer Technology Center for the Asian and Pacific Region
FREP = Fertilizer Research and Education Program completed project
UC ANR = University of California Agriculture and Natural Resources
UF IFAS = University of Florida Institute of Food and Agricultural Sciences
WNMC = Western Nutrient Management Conference
WTFRC = Washington Tree Fruit Research Commission