无土养兰给人们一个启示:使用大粒级的基质后,植株长势喜人。能否将这一成果用到土培上去呢?笔者用不同粒级的土对4盆兰草做了试验,结果发现,盆兰中烂根的多少与土中小于1毫米粒级的土的含量成正相关。经分析体会有一: 1.顺天性(即兰根的好“气”性),方能养好兰兰根与一般植物的根在构造上有不同之处,即海绵状的根被组织充满着水分和空气(尤其是附生兰的气根,靠吸收空气中的水分和养分赖以维生),因此根部要不断地有新鲜空气供给才好。如一旦根被组织中的微孔被粉尘、污物所堵塞,兰根就不能正常呼吸,日久便会烂根。 2.根部过湿,则易烂根 整 Soilless Blue gives people a revelation: the use of large-size matrix, the plant grows gratifying. Can this result be used in soil culture up? I used different levels of soil on 4 potted bluegrass tested and found that the number of rotten roots in pots and soil less than 1 mm grain size soil content Into a positive correlation. Analysis of the experience of a: 1. Congenital (Langen good “gas”), can only support Lan Langen and the general plant roots are structural differences, that is sponge-like roots are filled with tissue Moisture and air (especially the roots of epilators, rely on the absorption of moisture and nutrients in the air to survive), so the roots must continue to have fresh air supply. Once the root is the organization of micropores by dust, dirt blocked Langen can not breathe properly, as time goes by will be rotten roots. 2. The root is too wet, easy to rot roots