硝化抑制剂对海南岛几种野生蔬菜干物质积累的影响

Effects of nitrification inhibitor on the dry-matter accumulation of several wild-veggies in Island Hainan

本文探讨了含有硝化抑制剂DMPP的长效肥料ENTEC对三种野生蔬菜(苋菜、闭鞘姜、仙人掌)干物质积累的影响。结果表明:①ENTEC对闭鞘姜干物质积累有显著影响。仙人掌干物质积累较尿素处理提高26%。②三种蔬菜生长过程中均表现为ENTEC处理下的最高生长速率到达时期推迟,干物质积累主要时期延长。

Effects of a long-acting fertilizer ENTEC that contains 3,4-Dimethylpyrazole Phosphate(DMPP) -a new nitrification inhibitor on the dry-matter accumulation were studied. The results were as follows: (1) The effect of ENTEC on the dry-matter accumulation was significant in Costus speciosus Smith; the dry-matter accumulation in Opuntia dillenii with ENTEC treatment was higher 26% than that's with urea treatment. (2) On the growth process of three kind of Wild-veggies, the maximal growth rates with ENTEC treatment were delayed, and the key periods of the dry-matter accumulation were lengthened.