一、问题的提出大量研究资料表明,油茶花期不同,座果期不同,产量亦不相同。油茶植株大都是芽多花繁,据徐琛圭报道,一株20年生的油茶树,着花在20万朵以上,花的重量达28.5斤。由于花期低温多雨,影响到开花、授粉和受精,实际上油茶结果数只有开花数的1/10～1/20,甚至更少。1976年全国油茶大减产,油茶产量仅为1975年的47.2％。这一年陕西省南郑县产油 First, the issue put forward A large number of research data show that different flowering periods of Camellia, fruit set in different periods, the output is not the same. Camellia plants are mostly buds and more flowers, according to Xu Chengui reports, a 20-year-old Camellia tree, with more than 200,000 flowers, flowers weighing 28.5 pounds. Due to low temperature and rainy flowering, affecting the flowering, pollination and fertilization, in fact, the number of flowering tea only flowering 1/10 ~ 1/20, or even less. In 1976 the great reduction of Camellia, Camellia output was only 47.2% in 1975. This year, Nanzheng County, Shaanxi Province, oil production