平衡施肥对莴笋产量和品质的效应研究  

Effect of balanced fertilization on yield and quality of lettuce

作　　者：李会合[1] 王正银[1] 罗云云[1] 李宝珍[1] 向华辉[1] 刘星 

机构地区：[1]西南农业大学资源环境学院,重庆400716 [2]重庆市九龙坡区农业局,重庆400051

出　　处：《磷肥与复肥》2004年第6期72-73,共2页Phosphate & Compound Fertilizer

基　　金：中加合作项目(PPI/PPICChongqing02)资助。

摘　　要：采用田间试验研究了不同氮磷钾配比及其与硝酸盐复合控制剂配施对莴笋产量和品质的影响。结果表明,不同施肥处理莴笋产量有显著差异,BNPK处理莴笋产量最高,HNP处理最低,HNK+C2和HNK+C3处理使莴笋增产6.2%和4.1%。HNK配施硝酸盐复合控制剂对莴笋茎硝酸盐的降低幅度较大。综合产量和品质,以HNK+C2处理效果最好。The field experiment was adopted to study the effects of balanced fertilization (N, P, K) with complex nitrification inhibitor on yield and nutrient quality of lettuce. Results indicate that there is significant difference among the yield of lettuce. The yield of lettuce is the highest in B_(NPK) treatment, the lowest in H_(NP) treatment and is increased by 6.2% and 4.1% in H_(NK)+C_2 and H_(NK)+C_3 treatments. H_(NK) combination complex nitrification inhibitor could significantly reduce the nitrate in lettuce stem. H_(NK)+C_2 treatment is the best for high yield and good quality.

关 键 词：平衡施肥 莴笋 产量 品质 效应 硝酸盐 

分 类 号：S636.2[农业科学—蔬菜学]