论文部分内容阅读
刺槐系蝶形花科刺槐属,耐旱、耐寒、耐贫瘠、生长迅速,是我国荒山绿化的先锋树种。多年来剌槐荒山造林一般采用裸根苗栽植,近几年来由于天气干旱少雨,苗木成活率较低。涞水县实施刺槐营养袋荒山造林,春季育苗,雨季造林,可避开春旱,而且栽植时不伤根、不缓苗,大大提高了造林成活率。一、育苗(一)采种。选取生长健壮、无病虫害、10~15年以上树龄的大树,于8~9月采种。采集的荚果,要摊开暴晒,晒干后将荚果砸碎或用石碾压碎筛去果皮,进行风选,取得净种。种子荫干后,装袋干藏。(二)种子处理。播种前用60~70℃热水浸种,自然冷却后浸泡24小
Robinia pseudoacacia Papilionaceae Robinia, drought, cold, poor resistance, rapid growth, is the pioneer of afforestation in barren hills. For many years, afforestation of barren hills afforestation generally use naked root seedlings planted in recent years due to the weather is dry, seedling survival rate is low. Laishui acacia cultivation of afforestation bags afforestation afforestation, spring nursery, rainy season afforestation, can avoid spring drought, and planting does not hurt the root, not Huanmiao, greatly improving the survival rate of afforestation. First, nursery (a) seed collection. Select robust growth, no pests and diseases, 10 to 15 years old trees, in August to September seed. Collected pods, to open spread exposure, after drying the pods crushed or crushed with a pearl sieve to the peel, the wind election, access to net species. After the seeds are dried, they are bagged and dried. (B) seed treatment. Sowing with 60 ~ 70 ℃ hot water before planting, soaking 24 hours after natural cooling