目前,核桃脱皮采用的堆积后熟法,果核污染率常达70%以上,严重影响核桃内销、外贸的商品质量。为减轻果核污染,提高商品质量,我们参考国外采前树上喷洒乙烯利进行果实催熟的方法,结合实际情况,1980年进行了采果催熟试验,现将初步结果简报如下。 试验在历城、泰安进行,试材为当地 At present, the walnut peeling method used after the pile, the nuclear contamination rate often up to 70%, seriously affecting walnut domestic sales, foreign trade quality of goods. In order to reduce nuclear pollution and improve the quality of products, we reference the method of spraying ethephon in foreign pre-harvest trees for fruit ripening. According to the actual situation, the ripening test of picking fruit was carried out in 1980, and the preliminary results are as follows. Test in Licheng, Tai’an, test material for the local