半干旱区不同灌溉水源对芹菜生长特性和产量的影响
李拥军, 赵晓乐

Effects of different irtigation sources on growth characteristics and yields of celery in semi-arid region
LI Yongjun, ZHAO Xiaole
表1 耕层不同深度土壤化学性质
Tab.1 The chemical properties of soil at different depths of the topsoil
土层深度/cm 全氮/
(g·kg-1
全磷/
(g·kg-1
全钾/
(g·kg-1
有机质/
(g·kg-1
水解氮/
(mg·kg-1
速效磷/
(mg·kg-1
速效钾/
(mg·kg-1
pH值
0~20 0.59 0.68 25.93 10.12 72.12 8.34 125.12 7.78
>20~40 0.49 0.59 23.87 8.25 35.41 4.35 86.23 7.73