论文部分内容阅读
湿地松容器育苗技术研究结果表明，容器育苗比大田育苗优越：①1年4季均可育苗，幼苗出土快而整齐；②育苗周期短，从播种到出圃造林只需90～180d；③土地利用率高，是大田育苗的4倍；④1年4季均可造林，其成活率和年均高生长量比大田育苗的分别高12％和36．2cm，在立地条件差（特别是土壤瘠薄地段）的，其差异性更显著；⑤综合效益高，投入产出比为1:1．5。从1992年以来，共育容器苗297．4万株，推广造林1049．2hm2，占全县松类造林面积的97．2％。
The results showed that container seedling was superior to nursery seedling in field. ① Seedlings could be planted in 1 year and 4 seasons, and the seedlings were excavated quickly and tidily; ② The cycle of seedling raising was short, only 90-180 days from sowing to afforestation; ③ Land use efficiency 4 times higher in the field than in the field; ④All 4 years can be reforestation, the survival rate and average annual growth are 12% and 36.2cm higher than the field nursery, respectively. In poor site conditions (especially in barren soil) , The difference is more significant; ⑤ high comprehensive efficiency, input-output ratio of 1: 1.5. Since 1992, a total of 2,974,000 container vessels have been planted to promote 1049.2 hm2 of afforestation, accounting for 97.2% of the total afforestation area in the county.