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试验园设在龙游县塔石镇下王村４ｈｍ２橘园,树龄１６年,有６０００株柑,大部分每６６６．７ｍ２栽９４株,有０．４ｈｍ２每６６６．７ｈｍ２栽１６７株。因密度高,随着树龄的增大,枝梢严重交叉,管理困难,产量下降,品质差,无经济效益。本试验对柑密植园采用隔株轮换更新法进行改造,经多年多点大面积推广应用,使衰老橘园焕发生机,产量增加,品质提高。更新时间以２月下旬至３月份柑橘萌芽前为好,具体改造方法如下:
The test park is located in 4hm2 Orangery, Xiawangcun, Taishi Town, Longyou County. It has 16 years of age and 6,000 mandarins. Most of them have 94 plants per 666.7m2 and 167 plants per 666.7hm2 of 0.4hm2. Due to the high density, with the increase of the age, the branches are seriously crossed, the management is difficult, the yield is reduced, the quality is poor, and there is no economic benefit. The test of citrus plantation using alternate rotation method to transform the plant, after many years of large-scale popularization and application, the aging Orange Park revitalized, increased output, quality improvement. Update time to late March to March before citrus as well, the specific transformation method is as follows: