Chiang Mai Journal of Science

Effect of Effective Microorganisms (EM) with Liquid Organic Fertilizer on the Growth of Pak Choy (Brassica rapa var. chinensis) Seedlings

Paper Type	Contributed Paper
Title	Effect of Effective Microorganisms (EM) with Liquid Organic Fertilizer on the Growth of Pak Choy (Brassica rapa var. chinensis) Seedlings
Author	Nuntavun Riddech*, Le Nguyen Xuan Phuong and Tran Thi Ai Van
Email	nunrid@kku.ac.th
Abstract:  The effect of ‘effective microorganisms’ with liquid organic fertilizer on the growth and quality of Pak Choy seedlings was investigated. Several different methods of treating the seeds/seedling were employed in this study, including a control with no fertilizer; spraying liquid organic fertilizer (LOF); pouring LOF; soaking seeds in LOF; spraying the mixture of effective microorganisms (EM) and LOF; pouring EM+LOF; and soaked seeds in EM+LOF. Among the treatments, spraying LOF resulted in the greatest growth, with the root length of Pak choy being 1.1 times greater than that of the control after 15 and 30 days. After each harvest time, spraying LOF also had the highest root and shoot dry weight compared to other treatments, with1.27-fold and 1.11-fold increases compared to the control treatment, respectively. Meanwhile, soaking seeds in LOF increased vitamin C content by almost 2 times from the first to the second harvest. Spraying LOF+EM benefitted the Pak choy through the reduction of leaf senescence as the chlorophyll content of the vegetable remained almost the same after two harvests, compared to the obvious loss of chlorophyll content with other treatments.
Start & End Page	247 - 260
Received Date	2017-11-27
Revised Date
Accepted Date	2018-11-16
Full Text	Download
Keyword	liquid organic fertilizer, effective microorganism, pak choy seedlings
Volume	Vol.46 No.2 (March 2019)
DOI
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