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为了摸清不同时期抚育管理竹林可否造成竹鞭损伤,影响当年竹鞭生长的情况,消除不必要的思想顾虑,亚找出毛竹林“开沟、打穴、埋青、施肥和翻土”等抚育管理工作的合理时间,我们于一九七五年进行了分期断鞭的观察试验。 一、地点 毛竹工区。 二、林分年龄 一九六五年营造。 三、观察方法 一九七五年我们在竹园外围,先寻找竹鞭,而后用快刀切断,並在鞭的前方开宽1.5尺、深1.2尺、长10尺的沟。在沟内埋青施肥诱鞭。插上标志,以便今后观察。我们从五月至九月,逐月断鞭,年终进行观察检查,共断鞭二十五根。 四、观察结果 除九月份断鞭的当年已不能再长岔鞭和八月份断鞭的已有个别的不能再在当年长岔鞭外,其它五、六、七、八月份的断鞭,都能再长岔鞭。而且六月份断鞭的,一部分还能长二个岔鞭,其总长度分别为0.7米和2.85米。因此,断鞭越早,长出的岔鞭越长,反之越短。但不论年内曾否断鞭全年竹鞭的长度总生长大致都在二百厘米上下。
In order to find out whether the bamboo growing at different periods can cause bamboo whip injury and affect the growth of bamboo whip in the same year and eliminate unnecessary thoughts and concerns, In a reasonable time to nurture management, we conducted a staged observation test in 1987. First, the location of bamboo area. Second, the age of 1967 to create. Third, the observation method In 1975 we Chuk Yuen Wai, first look for bamboo whip, and then cut with a sharp knife, and open in front of the whip 1.5 feet wide and 1.2 feet long 10-foot ditch. In the ditch buried fertilizer fertile whip. Plug in the logo for future observation. From May to September, we cut off the whip every month and conducted observation and inspection at the end of the year with a total number of 25. Fourth, the observation results in addition to September whip cut off the current year can not be longer whip and broken whip in August has been a number of individual can no longer in that year whip, the other five, six, seven, August broken whip, all Can be longer long whip. And in June off the whip, part of the two can also be a long whip, the total length of 0.7 meters and 2.85 meters. Therefore, the broken whip earlier, longer whip whip, on the contrary the shorter. However, regardless of the year, the total length of the whip whipped around the whole year was roughly two hundred centimeters.