ZHANG Zhan-qin,ZHAN Yong,ZHANG Heng-bin,et al.Effects of Different Fertilizer Level of N，P，K on Physiological Parameters and Yield of Seed-Watermelon[J].Northern Horticulture,2012,36(21):166-170.
氮、磷、钾对籽瓜产量和生理参数的影响
- Title:
- Effects of Different Fertilizer Level of N，P，K on Physiological Parameters and Yield of Seed-Watermelon
- 文章编号:
- 1001-0009（2012）21-0166-05
- Keywords:
- seed-watermelon; N; P2O5; K2O; yield; dry matter; physiological parameters
- 分类号:
- S 642.906+.2
- 文献标志码:
- A
- 摘要:
- 采用单因素组合设计，氮、磷、钾分别为1个因素，设7个处理，研究探讨了氮、磷、钾对籽瓜生长、生理参数及产量的影响。结果表明：氮肥和磷肥对籽瓜产量影响显著，钾肥对籽瓜产量影响不显著。该试验条件下，氮、磷、钾的最佳组合是N 90 kg/hm2、P2O5 150 kg/hm2、K2O 120 kg/hm2。低氮和中氮处理的干物质积累明显高于高氮处理。中等磷、钾处理的干物质积累量分别显著高于高、低磷处理和高、低钾处理。除磷、钾对10粒宽，钾对千粒重影响不显著外，氮、磷、钾对籽瓜各经济性状影响显著。在全生育期内，低氮中磷中钾组合处理和中氮中磷中钾组合处理的LAI和群体总光合势较高，中氮中磷中钾组合处理的光合生产率较低（高）氮中磷中钾组合处理的高。不同生育期，磷、钾对籽瓜光合生产率影响不同。
- Abstract:
- This study was to investigate effects of different fertilizer levels of N，P，K on physiological parameters and yield of seed-watermelon.Seven treatments were designed：N1P2K2，N2P2K2，N3P2K2，N2P1K2，N2P3K2，N2P2K1，N2P2K3.The results showed that N and P2O5 had significant influence on yield，but had not on K2O.Yield of N1P2K2,N2P2K2 were 3 970.79，3 700.18 kg/hm2 respectively，higher than others.Dry material of high N was lowest compared with low and middle N，and middle level of P2O5，K2O were higher than high and low level.N，P2O5，K2O had significant influence on economic characters，except that P2O5，K2O on Grain width，or K2O on 1000-grain weight.LAI and population leaf area duration in condition of N1P2K2，N2P2K2 were higher than others during all growth stages.Photosynthetic productivity in condition of N2P2K2 were higher than low and high N，and effects of P2O5，K2O on photosynthetic productivity were different in each growth stage.
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备注/Memo
第一作者简介：张占琴(1983-)，女，硕士，助理研究员，现主要从事作物育种与高产栽培研究工作。E-mail:zzq3000qwe@163.com.