The Influence of Unusual Climate to Big Cherry Output

Maked use of Jinzhou meteorological bureau's data in 1993 and 2008 cherry phenophase of April to May on temperature,precipitation,sunshine.And form the information sequence on the basis of every item's ten-day data. Then got the ten-day's anomaly sequence And daily temperature,precipitation and sunshine in late April. Maked a detailed analysis of them.The results showed that the main cause of droping in large cherry production in Jinzhouis was serious petals shatter due to late April's low temperature and late spring coldness in florescence. Continual wet weather and insufficient light were also important factors. Otherwise,Hampered pollination leads to bad pollination and bad insemination. Then they leaded to atrophy and abscission. That was also the main reason of drop in production. According to the above reasons,the author put forward the following countermeasures which can reduce the low-temperature hazard:Choose a adequate place to establish orchard; Choose low-temperature-resistant varieties and deploy pollenizer;Pay attention to pruning; Create a shelterbelt; Root outside spray fertilizer at the right time; Protecte the cultivation in greenhouse; irrigation before Low-temperature period and so on.