关键词: 菜田土壤, 菜田土壤, 养分, 施肥

Abstract:

Scarcity of water is a environmental constraint to maize growth in semiarid region and cause loss in maize yield greatly. In order to screening spring maize varieties, which were well suited to semiarid region of west Liaoning. We conducted maize varieties test during 2007-2008. Results showed that seed yield and water use efficiency (WUE) were strongly influenced by spring maize varieties. There was statistically significant difference (P<0.05) among varieties in yields and WUE. Compared with CK (danyu39), zhengdan958, dongdan90 and liaodan565 reached 5% significant level. As for WUE, compared with CK (danyu39), Liaodan565 and zhengdan958 reached 5% significant level. Accordingly, it was recommended that zhengdan958, liaodan565 were more suitable to semiarid region of northeast China for their better yield performance and high WUE.