CAJ | 학술논문

利用大青杨枝条进行扦插育苗试验,并采用Logistic曲线对大青杨苗期生长进程进行拟合,结果表明:大青杨扦插繁殖,生根率可达92%;Logistic拟合效果较好,整个生长过程具有明显的阶段性,可划分为生长前期、速生期和生长后期,速生期累积生长为58.1%.速生期是大青杨苗木生长的关键时期,应加强水肥管理.
이용대청양지조진행천삽육묘시험,병채용Logistic곡선대대청양묘기생장진정진행의합,결과표명:대청양천삽번식,생근솔가체92%;Logistic의합효과교호,정개생장과정구유명현적계단성,가화분위생장전기、속생기화생장후기,속생기루적생장위58.1%.속생기시대청양묘목생장적관건시기,응가강수비관리.
The cuttage trail of Populus ussuriensis by branches was conducted in Senyuan nursery of Jilin City, Jilin Province, and the seedling growth process of P. ussuriensis was fitted with the logistic curve. The result indicates that the rooting rate of cuttings reaches 92%. The logistic fitting had a good result and the whole growth process has obvious gradualness. The growth process can be divided into the early growth stage, fast-growing stage and the later growth stage. The accumulated growth amount of P. ussuriensis seedlings was 89.5 cm in fast growing stage, which accounts for 58.1% of annual growth amount. The fast-growing stage is the critical period for P. ussuriensis seedling growth; thus, watering, fertilizer application, and weeding management should be strengthened.