摘要
为了确定切花菊品种‘神马’氮肥的适宜用量,本研究使用了不同的氮浓度营养液进行无土栽培。试验中发现:在氮用量在16.0mg/株～900.0mg/株的范围内出现了氮的缺素症和过剩症。氮用量16.0mg/株时植株表现出叶色浅,生长缓慢,花期较早;氮用量为900.0mg/株时植株根部出现坏死,生长缓慢,花期推迟。结果表明:切花菊施肥不可过量,否则不仅花期推后,而且花的品质也受到影响。通过研究发现:氮用量为98.0mg/株～240.0mg/株为宜,可以为切花菊施肥管理提供依据。
In order to determine the best level of N given to soil during the growing of Chrysanthemum morifolium normally,experiment was carried out on vermiculite with irrigation liquid with different N concen- tration. Both the special deficiency and the superfluous has been discovered in the N concentration rang （16.0 - 900. 0mg/plant） used for this experiment. It is suggested that the concentration of N given to soil during the growing of chrysanthemum morifolium is better not to surpass a rang, otherwise, efflorescence is delayed and quality of flower is not good. This experiment has determined the best level of N given to soil is 98.0 - 240.0mg N/plant during the growing of normally.
出处
《青海农林科技》
2012年第4期1-4,共4页
Science and Technology of Qinghai Agriculture and Forestry
关键词
菊花
氮处理
生长
发育
Chrysanthemum morifolium
N treatment
Growth
Development
