Cultivation And Management Techniques Of Chrysanthemum Varieties In Yinchuan City

Chrysanthemum since ancient times is famous poet who loved flowers, and chrysanthemum and people’s production, life and culture are closely related. In the Western Zhou Dynasty, "book of Rites" Book Description: "letters...... Huang Hua, Ju(Chrysanthemum)". The ecological phenomenon of chrysanthemum, reflecting the law of climate change. At the time of the Warring States period poet Qu Yuan’s "Li Sao" "toward the drink Mulan fall Lu Xi; evening meals Qiuju Luoying" famous, is praise chrysanthemum noble temperament, extraordinary, is chrysanthemum and national culture become attached to the beginning. From ancient since this chrysanthemum endowed with noble character, Chinese people is like chrysanthemum, chrysanthemum cultivation. Chrysanthemum although adaptability is strong, but light conditions is very sensitive to want to foster a higher value of chrysanthemum ornamental, or need technical support. Especially in spring in the Northwest climate instability, winter winter early to breed chrysanthemum bring great difficulties, so according to different cities in Northwest climate characteristics and technical status quo of chrysanthemum breeding and cultivation technology research is particularly important.The in Yinchuan local climate characteristics, combined with their own production practices, study of Yinchuan City chrysanthemum cultivation and management technology on the basis of systematic investigation and analysis and related experiments, finally comes to the following conclusions:1.Chrysanthemum cuttage method bud, branch, and leaf in three, Yinchuan area by bud cuttage and in maternal Ratooning bud is best cuttings, ratio of substrates for Peat: Perlite: vermiculite = 1:1:1, in plug seedling and such as small arch shed maintenance.2. To wheat varieties as test material cutting rooting experiment showed that NAA at 500 times dipping in panicle base effect best, the rooting rate was 90%, several hormones NAA> IBA>IAA>ABT1>CK, increase the rooting rate of 1.4%, IBA also have promote rooting effects than the control, the other had little effect.3.Due to the winter earlier, shading is Yinchuan area chrysanthemum cultivation technology necessary links, practical experience show Yinchuan chrysanthemum flowering 45-50 days before the start of shading is more reasonable and vary depending on the species and geographical. Such as Quan Xiang cupola belong to late flowering varieties, in the past 60 days before flowering began shading. Kaifeng and Liang Ziyu is early flowering 40 days before flowering, shading is enough.4.Yinchuan City, the common diseases of chrysanthemum varieties are blight and chrysanthemum black rust. Wilt disease prevention and cuttings on the basin with chlorothalonil and root rot rather mixed soil mixing can be prevented, and black rust multiple in the closing stages, at high temperature and high humidity is easy to get the disease. Chrysanthemum cultivars of common pests with aphids and red spiders. Ventilation is not good from June to July is the high incidence of Chrysanthemum in Yinchuan.5.Chlormequat hormones can shorten the internode of chrysanthemum cultivars, stout stem, increase the content of chlorophyll, color Nonglv, compact plant type, improve ornamental effect. Spraying stocky in last pick head after use, the spraying retardant while also adding 0.2% and 0.1% potassium dihydrogen phosphate and urea solution spraying. The chrysanthemum is not delayed flowering can not be too high soaring, some varieties of chrysanthemum is too high the use of Paclobutrazol, such as sporadic girl, Jin Longzhua etc..6.Various types of Juzhan play an important role in promoting the growth of Chrysanthemum in Yinchuan city.