Microelement composition of plants grown with low to high levels of sulfur applied to calcareous soil in a glasshouse

✍ Scribed by John Procopiou; Arthur Wallace; G. V. Alexander

• Publisher: Springer
• Year: 1976
• Tongue: English
• Weight: 292 KB
• Volume: 44
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00015887

✦ Synopsis

PI54619-5-1 soybeans (Glycine max L.), which are v e r y susceptible to Fe deficiency, were grown for 24 days in calcareous (10%) Hacienda loam soil with different levels of S each with and without 2 p p m Fe added as F e E D D H A (ferric ethylenediamine di (o-hydroxyphenylacetic acid). The S application rates ranged from sufficient to neutralize about 15% to more than all of the CaCO3 present if the S were all oxidized. The soil p H values at harvest time ranged from 7.4 to 6.0. The highest S rate was 10% b y weight of soil and it overcame Fe deficiency w i t h o u t F e E D D H A . The S t r e a t m e n t s resulted in increased concentrations of Fe and other metals in leaves, but the F e E D D H A t r e a t m e n t s increased yields more t h a n did S. A t the lower levels of S, the effects of S and F e E D D H A on Fe concentrations in leaves were additive, but not at the highest level of S. The F e E D D H A overcame much of the effect t h a t S had on increasing Mn concentrations in leaves. I t had a similar effect, particularly at the low S levels, on Zn, Cu, A1, B, and Ni concentrations in leaves. A level of S sufficient to neutralize only 15% of the CaCO8 of the soil increased leaf concentrations of Fe, Mn, Zn, Cu, A1, B, Ni, St, and P. The effect for Zn, Cu, and A1 appeared m a x i m u m at this level. A combination of the½% S and the F e E D D H A resulted in the most favorable micronutrient balance. Bush beans (Phaseolus vulgaris L. var. I m p r o v e d Tendergreen) grown in calcareous soil with S insufficient to neutralize all the CaCO3 had increased Mn, Ni, and Mo and decreased Ba levels in leaves. CaSO4 as a source of S did not have the same effects as elemental S.