茶树播种时必须复土,因而属“理土萌发方式”。茶籽萌发后,子叶因本身的肥硕加上覆土的阻力,常不易出土。因此,茶树旺苗是依赖上胚轴的伸长,把茅头倒转呈鱼钩状突破土层,等露出地面后,再使芽头直立起来。为确保幼苗出土,做到苗齐、苗壮,在出苗前松土是建立高产新茶园的一个措施。南京地区茶籽播种后,一般在四月底至五月上旬开始发芽。由于丘陵山地土壤普遍粘性较大,加之春季雨水较多,雨后土壤容易板结,往往使刚萌发的幼苗为板结的土层所阻,给幼苗出土增加了新的障碍。近年来,针对茶籽胚苗期的生产特性,结合本地区的土壤特点,我们试验并推广了“小板钉齿”松土法。实践证明,这种方法不仅速度快,而且效果好。 Tea trees must be re-soil when sowing, and therefore is a “rational soil germination.” After the germination of tea seeds, cotyledons due to their own stout plus the resistance of the soil cover, often not easy to unearthed. Therefore, the seedlings of tea tree is dependent on the elongation of the hypocotyl, the mafia inverted fishbone broke through the soil, so exposed ground, and then make the bud upright. In order to ensure that the seedlings unearthed, so that Miao Qi, Miao Zhuang, before the emergence of loose soil is a measure to build high-yielding new tea plantation. After sowing in Nanjing, it usually begins to germinate from the end of April to early May. Due to the generally high viscous soil in hilly and mountainous areas, and the more rain in spring, the soil easily compacted after rain tends to make the newly germinated seedlings cling to the soil layer of the knot, which adds new obstacles to the excavated seedlings. In recent years, according to the characteristics of seed germination of tea seedlings, combined with the characteristics of the soil in the area, we experimented and popularized the method of “microtooth”. Practice has proved that this method is not only fast, but also effective.