---

作 者 ：唐拴虎;张发宝;黄旭;陈建生;徐培智

期 刊 ：应用生态学报 2008年 19卷 05期 页码：986-991

关键词：辣椒；

摘 要 ：采用盆栽试验方法，连续3年研究了不同缓/控释肥料在辣椒上的施用效果.结果表明
：与常规分次施肥处理（T¹）相比，一次性施用聚合物包膜控释肥处理（T²）提高了辣
椒的单果质量和维生素C含量，改善了根系活力，产量平均提高8.4％，但可溶性糖含量没有明显变化；施用磷酸铵镁包膜控释肥处理（T₃）的单果质量和维生素C含量与T₁无显著差异，
但可溶性糖含量提高了5.67%，根系活力在生育前期旺盛，后期较弱，平均产量略有降低；而
3种缓释肥处理则提高了果实的可溶性糖含量，显著改善了根系活力，但平均产量与T₁无显
著差异.在养分利用方面，除T₂处理氮钾利用率提高、磷素利用率降低外，其他缓/控释肥料
处理的氮、磷、钾利用率均明显提高.表明合理施用缓/控释肥料能改善辣椒的根系活力，
提高养分利用率.

Abstract:Pot trails were conducted from 2003 to 2005 to study the effects of sl
ow/controlled release fertilizers on the growth and nutrient use efficiency of p
epper. The results indicated that in comparison with conventional splitting fert
ilization (T₁), basal application of polymercoated controlled release fertil
izer (T₂) enhanced the single fruit mass and vitamin C concentration, improved
the root activity, and increased the fruit yield by 8.4%, but no significant e
ffect was observed on the dissoluble sugar concentration in fruit. NH₄MgPO₄
coated controlled release fertilizer (T₃) increased the dissoluble sugar con
centration by 5.67%, but had less effect on single fruit mass and vitamin C con
centration. Under the application of T₃, the root system had a vigorous growth
at early stages but became infirm at later stages, resulting in a lower yield.
Comparing with T₁, the application of 3 slow release fertilizers incr
eased the dissoluble sugar concentration in fruit, enhanced the root activity, b
ut had less effect on the yield. All test slow/controlled release fertilizers in
creased the use efficiency of N, P, and K significantly, with an exception
for T₂ which increased the use efficiency of N and K but decreased that of P.
It was demonstrated that an appropriate application of slow/controlled release fertilizers could enhance pepper’s root activity and improve nutrient use effic
iency.

---