论文部分内容阅读
通过实地考察、用户填表和座谈会的方式,进行了河南省梨树栽培、授粉方式等产业发展情况调查。结果表明,全省梨树栽培面积4万余hm2,约20个品种。其中宁陵县1.47万hm2,酥梨品种占77.3%,全部需要人工授粉,每公顷授粉费用9 600元左右。除宁陵县外,全省梨树集中栽培的地方还有孟津、唐河、上蔡等市县。这些梨园都需要借助昆虫、人工等外力才能受精结实,尤其是宁陵酥梨,迫切需要解决授粉难题,改变人工授粉模式。还对利用蜜蜂为梨树授粉存在的问题和解决方案进行了论证分析。
Through field visits, user forms and forums conducted in Henan pear cultivation, pollination and other industrial development survey. The results showed that pear cultivated area of more than 40,000 hm2, about 20 varieties. Ningling County, of which 14,700 hm2, pear varieties accounted for 77.3%, all need artificial pollination, polo ralph lauren pas cher, polo ralph lauren, per hectare pollination costs 9 600 yuan. In addition to Ningling County, the province concentrated cultivation of pear there Mengjin, Tanghe, Shangcai and other cities and counties. These pear orchards need insects, artificial and other external forces to fertilize and solidify, especially Ningling pear, there is an urgent need to solve the pollination problem and change the mode of artificial pollination. The problems and solutions of pear pollination using bees were also analyzed.