滇藏木兰年生长节律及其幼苗施肥效应研究  

Study on Growth Rhythm and Fertilization Effect of Magnolia campbellii

作　　者：张玉信 罗一然 杨忠文 李雄军 杨锐铣 ZHANG Yu-xin;LUO Yi-ran;YANG Zhong-wen(Dali Vocational and Technical College of Agriculture and Forestry,Dali,Yunnan 671003)

机构地区：[1]大理农林职业技术学院,云南大理671003

出　　处：《安徽农业科学》2022年第24期122-124,159,共4页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究不同施肥措施对滇藏木兰幼苗生长节律和地径、苗高生长量的影响,探寻合理的施肥方案。[方法]以不同水平的有机肥(0、100 g/株)和三元复合肥(0、1、2、5 g/株)共设置8个混合施肥处理,每个处理21株幼苗,所有处理间隔60 d追肥1次,每隔30 d测量1次苗高和地径。[结果]滇藏木兰幼苗在一年中出现2次生长高峰,分别出现在4—5月和7—9月;仅施用有机肥,对苗木的生长促进作用不明显,适量增加复合肥的施用量,可增加幼苗生长量,但苗木的木质化程度也随之降低。[结论]最优施肥处理为:施用2 g/株复合肥+100 g/株有机肥,苗木生长最为健壮。在栽培基质中添加有机肥、生长季节追施适量复合肥,能促进苗木生长,缩短育苗期限。[Objective]This study intends to explore the change rule of the annual growth rhythm,height and diameter of the seedlings under the different fertilization treatments conditions,and to study fertilization scheme selection for Magnolia campbellii.[Method]A total of 8 fertilization treatments were set with different levels of organic fertilizer(0,100 g/plant)and ternary compound fertilizer(0,1,2,5 g/plant).Each treatment had 21 seedlings.All treatments were topdressed once every 60 days.The height and ground diameter width of seedlings were measured every 30 d.[Result]The seedlings had two growth peaks in a year,which occurred in April to May and July to September respectively;only applying organic fertilizer had no obvious effect on the growth of seedlings.Increasing the amount of compound fertilizer appropriately could increase the growth of seedlings,but the lignification degree of seedlings decreased.[Conclusion]The best fertilization treatment is 2 g/plant compound fertilizer+100 g/plant organic fertilizer,the seedlings grow healthily.Adding organic fertilizer to the cultivation substrate and topdressing appropriate compound fertilizer in the growing season can promote the growth of seedlings and shorten the seedling raising period.

关 键 词：滇藏木兰 生长节律 施肥试验 

分 类 号：S682.31[农业科学—观赏园艺]