1. Copper deficiency in world crops;Alloway;Outlook Agric.,1984
2. Problems in the use of chemical analyses for diagnosis of plant nutrient deficiencies;Andrew;J. Aust. Inst. Agric. Sci.,1968
3. Models of growth and development of wheat in relation to plant nitrogen;Angus;Aust. J. Agric. Res.,1985
4. Lychee in Guangdong,1978