论文部分内容阅读
秋天,许多国营苗圃及育苗专业户,都忙着把第二年春天出售的树苗起出假植上。但发现有些专业户起树苗时间太早,假植时间也过早,造成苗木质量太差,烂根干梢现象严重,影响春季造林成活率。既使是树苗活了,但长势不好.其原因主要是:1、由于起苗太早,叶子未自然脱落,树苗木质化不好,也就是人们常说的“太嫩”。冬天一冻,
In autumn, many state-owned nurseries and nursery professionals are busy planting saplings for sale in the following spring. However, it was found that some professional households saplings too early, fake planting time too early, resulting in poor quality of seedlings, rotten roots dry serious, affecting the survival rate of forest afforestation. Even if it is a sapling live, but the growth is not good. The main reasons are: 1, due to the early seedling, the leaves did not naturally fall off, sapling is not good, that is, people often say “too tender.” Winter one frozen,