---

作 者 ：唐政, 李虎, 邱建军, 王立刚, 邹国元

期 刊 ：植物营养与肥料学报 2010年 16卷 2期 页码：413-418

关键词：有机肥；番茄品质；土壤硝态氮；管理措施；

Keywords:manure, quality of tomato, NO-3-N content in soil, management practice,

摘 要 ：采用田间试验方法研究了北京郊区主要蔬菜作物—番茄在大棚有机种植条件下，不同有机肥投入量与灌溉量对番茄产量与品质以及土壤硝态氮累积的影响。结果表明，与当地习惯的水肥管理相比，减半量有机肥投入不会显著降低番茄产量，而且能降低硝态氮、重金属和有机酸的含量，有效地改善果实品质，并增加番茄果实中可溶性糖、Vc、番茄红素等营养元素的含量； 还能显著降低土壤中硝态氮累积量。在施肥量相同的条件下，减量灌溉也有同样的结果，但效果不如减量施肥明显； 过量施用有机肥可造成番茄果实中硝酸盐含量和镉、铬、锌等重金属含量超标。说明在番茄的有机种植中，保证产量和品质的前提下开展节本增效还有很大空间。

Abstract:A field experiment, under organic planting in greenhouse in suburb of Beijing, China, was carried out to study the effects of different water and organic fertilizer management practices on yield and quality of tomato and NO^-₃-N accumulations in soil profile. The results show that compared with local farmers‘ conventional management of water and manure, the yield of tomato are not decreased significantly under the half cut of manure inputs, while the quality of tomato fruit are improved due to the increases of the contents of soluble sugar, Vc and lycopene in the fruits, and concentration of NO^-₃-N, heavy metal content and organic acid in the fruits are reduced. Meanwhile accumulation of NO^-₃-N in soil profile is decreased observably. When the application of manure is stable, the water saving irrigation practices have the same results as well, however the effects are not remarkable. It is concluded that there is a great potential to reduce the application of water and manure under the current condition of overdose of organic fertilizer.

---