Reduction of cadmium uptake in spinach (Spinacia oleracea L.) by soil amendment with animal waste compost.
A field experiment was conducted to evaluate the efficacy of animal waste compost (AWC) in reducing Cd uptake by spinach (Spinacia oleracea L.). Spinach was grown in a field that had been treated by having cattle, swine, or poultry waste compost incorporated into the soil before each crop throughout 4 years of rotational vegetable production. Cadmium concentration was 34-38% lower in spinach harvested from the AWC-treated soils than in the chemical fertilizer-treated soil. Although the repeated application of swine and poultry compost caused significant P accumulation in the cropped soils, that of cattle compost did not. These results indicate that cattle compost with high affinity for Cd and low P content should be the preferred soil amendment when used to reduce Cd uptake by spinach.
Sato
Atsushi
A
Niigata Horticultural Research Center, Seiro, Niigata, Japan. asatou@ari.pref.niigata.jp
Takeda
Hiroyuki
H
Oyanagi
Wataru
W
Nishihara
Eiji
E
Murakami
Masaharu
M
D000383:Agriculture / Q000379:methods; D000818:Animals; D002104:Cadmium / Q000032:analysis / Q000493:pharmacokinetics*; D002417:Cattle; D002645:Chickens; D018556:Crops, Agricultural / Q000378:metabolism; D005308:Fertilizers; D008372:Manure; D012987:Soil; D018724:Spinacia oleracea / Q000378:metabolism*; D013552:Swine
D005308:Fertilizers; D008372:Manure; D012987:Soil; D002104:Cadmium