1. Alley MM, Rich CI, Hawkins GW and Martens DC 1978 Correction of Mn deficiency in soybeans. Agron. J. 70, 35–38
2. Anderson OE and Boswell FC 1968 Boron and manganese effects on cotton yield, lint quality and earliness of harvest. Agron. J. 60, 488–493
3. Anderson WC and Carstens JB 1973 Effect of manganese soil and seed treatments on growth and yield of peas. J. Am. Soc. Hortic. Sci. 98, 581–582
4. Anderson WC and Carstens JB 1974 Manganese chelate sprays increase growth and yields of peas. Hortscience 9, 459–460
5. Asghar M and Kanehiro Y 1980 Effects of sugar-cane trash and pineapple residue on soil pH, redox potential, extractable Al, Fe and Mn. Trop. Agric. 57, 245–258