Nutrient status of potato grown on fine sandy loams in Prince Edward Island
1995
Gupta, U.C. | MacLeod, J.A. | Sanderson, J.B. | White, R.P.
Potato (Solanum tuberosum L.) leaf tissue and corresponding soil samples were taken from 64 fields in 1988 on Prince Edward Island (P.E.I.) to characterize their nutrient status. The pH of the soil samples ranged from 4.4-6.3 with a mean of 5.2. The phosphorus (P), potassium (K), magnesium (Mg), copper (Cu), zinc (Zn), boron (B), and iron (Fe) in leaves and soils were present in adequate quantities for normal potato production. Plant sulfur (S) was considerably lower in this survey than levels obtained in 1979. Leaf tissue manganese (Mn) concentrations ranged to toxic levels and were negatively correlated with soil pH. A number of leaf tissue samples tested deficient in S and low in Ca. Potato and possibly other crops may benefit from S fertilization on P.E.I.
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