1. Al-Molla R M M 1985 Some phenological aspects of soybean development and yield as affected by boron fertilization. Ph. D. Dissertation, Univ. of Arkansas, Dissertation Abst.46–10B, 3268, Ann Arbor, MI.
2. Blevins D G, Reinhott T M and Boyce P J 1993 Foliar fertilization of soybeans with boron and magnesium. In Foliar Fertilization of Soybeans and Cotton. Ed L S Murphy. PPI/FAR Tech. Bull 1993–1. Norcross, GA.
3. Chandel A S, Tiwari S K and Saxena S C 1989 Effect of micro-nutrient application on soybean (Glycine max) grown in Uttar Pradesh foothills. Indian J. Agr. Sci. 59, 62.
4. Flannery R L 1986 Plant food uptake in a maximum yield soybean study. Better Crops with Plant Food. September, 6–7.
5. Gascho G J 1992 Late-season nitrogen and boron applications for soybeans. In Fluid Fertilizer Foundation 1992 Research Symp., Proc. pp 59–67. Fluid Fertilizer Foundation. St Louis, MO, USA.