Abstract
This study investigated cultivation techniques to achieve high yield with high quality in mother fern green asparagus (Asparagus officinalis L.) cultivation. The effects of training with a net and time of pruning secondary branches on the yield and size of spears were investigated. Training with 10 cm and 20 cm mesh vertical nets increased the yield of dense green spears as compared with control, and 10 cm mesh net gave enough working space between the beds to allow the use of ambulatory control machines. The marketable yield, especially high price L class spear yield was increased by removing secondary branches of mother ferns by the end of June.
