【摘要】 连翘(Forsythia suspensa)是一种优良的经济和水土保持灌木。七十和八十年代先后在陕西北部的安塞和宁夏固原引种成功。可采用种子繁殖和压条、插条、分株等营养繁殖方法培育苗木。造林后成活率高,生长快;且采用盘旋法造林当年可由单株发展为株丛,能加快郁闭,保持水土。造林后第二年开始结实,第3、第4年平均每公顷产干果1,084.5公斤,第5年产1,618.5公斤,第7年可达2,670公斤,最高达4,000公斤。更多还原

【Abstract】 Forsythia suspensa is a good shrub for the economy and con- servation of water and soil.First F.suspensa was planted successfully in Ansai in northern Shaanxi in the 1970s,then in Guyuan in Ninxia Hui Autonomous Region in the 1980s.It can be propagated by seeds,layer, cutting,divided plant etc.in the field.After F.suspensa was planted on the hills,it had a high survival rate and quick growth;Using the me- thod of spiral afforestation,an individual can develop into a shrub in the first year,and can quicken closing and conserve soil-water content.After seeond year of afforestation,the shrubbery began fruit production,the average yield of the dried fruit was 1,084.5 kg/ha;in the third and fourth year,it was 1,618.5 kg/ha;in the fifth year,it was 2,670kg/ha,in seventh year,it ha s the highest yield of all dried fruit,about 4,000kg/ha.更多还原