板栗是我国特产的一种优良干果树木,是适应性强,收益期长、收益较快的经济林木。但是,在发展板栗生产中,苗木成活率低,生长缓慢;经观察分析,主要存在如下几个问题。一、栽植塘较小。现在大多数地方的栽植塘最大的为60×60×60厘米,最小的只有20×20×20厘米,塘小使苗木根系不能很好地伸长,苗木根系卷曲,影响其对水份和养份的吸收,天长日久,一些苗木就会枯萎,甚至死亡。 Chestnut is an excellent dried fruit tree of our country, which is a kind of economic forest with strong adaptability, long yield period and quick returns. However, in the development of chestnut production, seedling survival rate is low, slow growth; the observation and analysis, the main problems are as follows. First, planting pond smaller. Now most of the local planting ponds for the largest 60 × 60 × 60 cm, the smallest of only 20 × 20 × 20 cm, the root of the pond seedlings can not be very good elongation, seedling roots curly, affecting its moisture and support Some absorption, over time, some seedlings will wilt, or even death.