稀土元素对中国水仙效应的研究

试验结果表明:1.稀土元素可以促进中国水仙出苗早、展叶快、加速叶片生长,增加叶片叶绿素含量。2.采用稀土浸种、叶面喷洒或浸种配合喷洒的方法,均可促进水仙花鳞茎膨大,增加大花球百分率而提高产量,但以浸种配合喷洒的效果为最好。3.以低浓度浸种配合初苗期和壮球期用低浓度喷洒处理,大花球百分率最高,达60.8%,比对照的43.6%增加37.6%,经新复极差测验,异差达极显著水准。4.中国水仙施用稀土元素,每亩可增加产值3.03%～20.58%(181～1230元)。

AN INVESTGATION ON THE EFFECTS OF RARE EARTH ELEMENTS TO THE NARCISSUS TAZETTA VAR CHINENSIS ROEM

The experiment adopted random plots design to investigate the effect of rare earth elements on the Chinese Narcissus(Narcissus tazetta var.chine- nsis Roem).The results showed that: 1.Rare earth elements promoted early germination of the bulbs,has- tened the spreading growth and development of leaves,and increased the contents of chlorophyll in the leaves.2.Soaking,spraying,or com- bined treatments all promoted the growth of bulbs,increased the rate of flowers and thus brought favorable returns.Among the three treat- ments,soaking together with spraying gave the best results.3.With low concentration,soaking in addition to spraying at early growth and dif- ferentiation stages,we obtained flower bulbs at the rate of 60.0%.In comparison with the check of 43.6%,an increase of 37.6% rated the highest harvest。