LONG-TERM EFFECTS OF ORCHARD SOIL-MANAGEMENT ON TREE VIGOR AND EXTRACTABLE SOIL NUTRIENTS

被引:15
|
作者
NEILSEN, GH
HOGUE, EJ
机构
关键词
ORCHARD FLOOR VEGETATION MANAGEMENT; EXTRACTABLE SOIL P; K; CA AND MG;
D O I
10.4141/cjss92-052
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
Bisbee Delicious apple trees on M.26 (Malus domestica Borkh.) rootstock were planted in 1982 on a neutral pH, loamy-sand soil and were subjected to five soil management-fertilizer regimes until 1989. Orchard floor vegetation control with herbicides was required to maximize tree growth. Annual application of P at 50 kg ha-1 and K at 100 kg ha-1 from 1984 to 1989 increased extractable soil P and K to the 40-cm depth but did not appear to increase tree vigor. Orchard floor vegetation maintained extractable soil Ca and Mg levels compared to vegetation control treatments.
引用
收藏
页码:617 / 621
页数:5
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