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山核桃Carya cathayensis Sarg.是我国特有的一种名贵干果和木本油料树种,浙江省临安县是山核桃重点产区,有面积约1.27ha,大年产5000-6000t,产值5000多万元。但由于管理粗放,加上花期常遇低温多雨天气,座果率普遍很低。大小年极明显,据对临安县14年产量统计,年变异系数达53.3-92.2％。为了提高座果率和现有林产量,近年来我们在产区进行了人工辅助授粉、施肥、外源激素应用以及农业技术措施以提高座果率的试验研究,取得良好效果。
Hickory Carya cathayensis Sarg. Is endemic to our country a valuable dried fruit and woody oil tree species, Lin’an County, Zhejiang Province is the key producing areas of pecan, with an area of about 1.27ha, with an annual output of 5000-6000t, the output value of about 50000000 yuan. However, due to extensive management, coupled with frequent low flowering and rainy weather, fruit set rate is generally low. According to the 14-year production statistics of Lin’an County, the annual variation coefficient reached 53.3-92.2%. In order to improve the fruit set rate and the existing forest output, we have conducted the pilot study on the rate of fruit set in the producing areas in recent years through artificially assisted pollination, fertilization, application of exogenous hormones and agricultural techniques to achieve good results.