The effectiveness of iron-coated fertilizers on iron-deficient economical crops in Sichuan province

IPNI-1994-CHN-SC10

The effect of Fe(ll) coated fertilizers on correction of iron deficiency in high value crops in Sichuan province, 1997 Three different iron (Fe) coated fertilizers were tested on peanut, citrus and peach. In a pot study, peanut yield increased up to 50 percent with additions of Fe fertilizer. Fertilizer coated with the ferrous (Fe+2) form gave the best yield while fertilizer coated with chelated FeEDDHA caused abnormal growth and lower yield on the calcareous soil. Read more


Year of initiation:1994
Year of completion:1997

Interpretive Summary

The effect of Fe(ll) coated fertilizers on correction of iron deficiency in high value crops in Sichuan province, 1997 Three different iron (Fe) coated fertilizers were tested on peanut, citrus and peach. In a pot study, peanut yield increased up to 50 percent with additions of Fe fertilizer. Fertilizer coated with the ferrous (Fe+2) form gave the best yield while fertilizer coated with chelated FeEDDHA caused abnormal growth and lower yield on the calcareous soil.

The effectiveness of iron-coated fertilizers on iron-deficient economical crops in Sichuan province, 1996 A greenhouse evaluation of calcareous, sandy loam soils of Jianyang county indicated significant deficiencies in Fe, B, molybdenum (Mo), Mn, and Cu. Three different Fe-coated fertilizers were tested on peanut, citrus and peach. Initial results showed 12 to 33 percent yield increases in peanut due to Fe addition. Chelated fertilizer (FeEDDHA) was superior to all other forms applied.

The effectiveness of iron-coated fertilizers on iron-deficient economical crops in Sichuan province, 1995 Iron (Fe) deficiencies reduce yields of peanut and peach. Evaluating the efficiency of Fe-amended fertilizers produced variable results but showed: peanuts fertilized at a rate of 150-45-150-31 kg/ha N-P2O5-K2O-magnesium (Mg) and supplied Fe-coated fertilizer produced only a slight yield increase while foliar applications depressed yield.

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Project Leader

Shihua Tu, Soil and Fertilizer Institute


Project Cooperators

None


IPNI Staff

Shihua Tu


Location

Asia \ Eastern Asia \ CHN \ Sichuan


Topics

4r rate, balanced nutrition

peach, peanut

Nitrogen (N), Phosphorus (P), Potassium (K)