森林与环境学报2018，Vol.38Issue(2)：229-233,5.DOI:10.13324/j.cnki.jfcf.2018.02.016
樟子松芽种精量穴盘播种试验
Experiment of precision plug sowing on bud seed of Pinus sylvestris var. mongolica
摘要
Abstract
To promote the application of precision plug sowing in the forestry field,the research applied gas suction pattern precision plug planter to sow the bud seeds of Pinus sylvestris var.mongolica,and observed the emerging time,emergence rate,ground diameter growth,growth morphological change,injury condition. The results showed that,with the increasing size of suction nozzle aperture, the emerging time become short and also the ground diameter increase. When the pore diameter of the suction nozzle was 0.9 mm, the indexes were better than those of the other two groups. The experimental treatment of the average emerging time was 0.5 and 0.7 mm with a decrease of 19.28% and 26.81%,respectively. The ground diameter and emergence rate were about 1.4 times to that of the other two groups. When the negative pressure value was 6.7 and 7.7 kPa, it has not significant influence on the emerging time,while the pressure value increased to 8.7 kPa, the emerging time was increased obviously. The seedling growth condition of P. sylvestris var. mongolica which was treated with 6.7 kPa was good, and was 28.85% and 11.95% higher than 7.7 kPa, and 35.35% and 26.59% higher than 8.7 kPa,respectively. The sprouting time has no significant influence on the emergence time while it had obviously influence on the diameter growth and emergence. When the buds sprout for 4 d,the damage to the buds by sowing planter suction nozzle was not significant. In conclusion, the best condition of the 3 experiment parameters are that suction nozzle diameter is 0.9 mm,negative pressure value is 6.7 kPa,and the sprouting time is 4 d,according to the P. sylvestris var. mongolica container seedling emergence,seedling emergence and the early time of growth rate.关键词
樟子松/芽种/精量播种/出苗率/出苗时间Key words
Pinus sylvestris var mongolica/bud seed/precision seeder/emergence rate/emerging time分类
农业科技引用本文复制引用
苗振坤,李芝茹,吴立国,汤晶宇..樟子松芽种精量穴盘播种试验[J].森林与环境学报,2018,38(2):229-233,5.基金项目
中央级公益性科研院所基本科研业务费专项资助项目"气吸播种对催芽樟子松种子损伤机理研究"(CAFYBB2017QA035). （CAFYBB2017QA035）
