施硫对土壤pH、越桔树体生长营养的影响

Influence of Soil─S Application on Plant Growth and Leaf Nutrition of Bluerry

选择草甸沼泽土和暗棕色森林土２种类型的酸性土壤，土壤施入Ｓ后栽培“美登”越桔。结果表明，土壤ｐＨ值随着施Ｓ量的增加而下降，土壤中速效Ｎ、Ｃｕ、Ｆｅ、Ｍｎ含量随着施Ｓ量的增加而增加；土壤施Ｓ促进了越桔树体的生长，随着施Ｓ量的增加，越桔的延长枝长、基生枝长、地上部干重、百叶干重和根干重明显增加，叶片中Ｎ、Ｋ、Ｃｕ、Ｆｅ、Ｍｎ含量随着施Ｓ量增加而增加，而叶片中Ｃａ的含量则下降。在生产中Ｓ的施用量为１３００ｋｇ／ｈｍ２。

Dark brown forest soil and meadow bog gleyed soil were selected and'Blomidon'blueberry was cultured in put with soil─s application. The results indicated that soil─s pH decreased successively with the increasing of soil─s application, and soil N, Cu, Fe and Mn content increased. The growth of blueberry plant was inereased by the application of soil─s. Leaf N, K, Cu, Fe and Mn increased with successively higher soil─s application, but leaf Ca decreased.