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http://dx.doi.org/10.12791/KSBEC.2013.22.4.408

Appropriate Drainage Position in Coir Bag Culture Using U-type Bed  

Lee, Mun Haeng (Buyeo Tomato Experiment Station C.A.R.E.S.)
Lee, Hee Keyung (Buyeo Tomato Experiment Station C.A.R.E.S.)
Kim, Sung Eun (Sangmyung University)
Lee, Hwan Gu (Buyeo Tomato Experiment Station C.A.R.E.S.)
Lee, Sun Gye (Buyeo Tomato Experiment Station C.A.R.E.S.)
Park, Guen Se (Buyeo Tomato Experiment Station C.A.R.E.S.)
Chae, Young (Rural Development Administration)
Kim, Young Shik (Sangmyung University)
Publication Information
Journal of Bio-Environment Control / v.22, no.4, 2013 , pp. 408-412 More about this Journal
Abstract
This study was carried out to investigate damp injury caused by tomato coir bag culture and prevent that. The tomato variety was used 'Minichal', and tomatoes were grown in greenhouse. The nutrient solution based on Yamazaki Tomato Standard Solution was irrigated from one hour after sunrise to two hour before sunset. The slits for darainage were made in three types; I, L, and bottom slit type. The coir bag of I and L type had six slits of 15cm length, that of bottom slit type had three slits of 15 cm length. The weight of coir bag in 24 hours after saturation was 14.2 kg in I type, 13.8 kg in L type, and 12.8 kg in bottom slit type, but there was not significant difference. The weight of coir bag after one day irrigation was 14.5 kg, 14.2 kg, and 13.3 kg at L, I, and bottm slit type, respectively. This means that the moisture content of coir bag during cultivation was lowest in bottom slit type. The number of adventitious root on stem was 160, 170, and 53 at I, L, and bottom slit type, respectively. The dry weight of root and root length were highest at bottom slit type, compared to other treatment. The marketable yield was highest 26.5 kg/20 plant in bottom slit type. For increasing yield and preventing damp injury, bottom slit type was most effective at U type bed coir bag culture.
Keywords
bag culture; coir; U-form bed; wet injury;
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