BACKGROUND: To evaluate the application level of expeller cake fertilizer(ECF), we have investigated soil chemical properties, leaf mineral contents and yield of tah tasai Chinese cabbage in a plastic film greenhouse. METHODS AND RESULTS: Five levels of fertilizer were applied as 0%(ECF 0), 50%(ECF 50), 75%(ECF 75), 100% (ECF 100) and 150%(ECF 150) by base 1,848 kg/ha of ECF. In 2012, tah tasai Chinese cabbage was planted on April 28 in a silt loam soil and harvested on July 12. Commercial yields were measured 10 times from May 10 to July 12. Electrical conductivity (2.24~3.09 dS/m), available (484~581 mg/kg) and exchangeable cations(, and ) were tended to increase by the application of ECF. However, the range of those was not significant. The contents of T-N, K, Ca and P of tah tasai Chinese cabbage leaves were 62.2~66.5 g/kg, 44.3~48.7 g/kg, 5.1~5.9 g/kg and 5.6~6.2 g/kg, respectively. The nitrogen utilization rate of tah tasai Chinese cabbage was 39.4~51.6%, and it was decreased with increased application amount of ECF. The yield of tah tasai Chinese cabbage was 9,806 to 12,730 kg/ha on the basis of application amount of ECF and it was not increased in spite of increased ECF. CONCLUSION: The optimum dose of application of ECF for cultivation of tah tasai Chinese cabbage was ranged from 924 kg/ha(as ECF 50) to 1,386 kg/ha(as ECF 75). Environment-friendly and economical amount of applied fertilizer is more important than yield for cultivation of tah tasai Chinese cabbage.
[1]
B. Ahn,et al.
Effect of Expeller Cake Fertilizer Application on Soil Properties and Red Mustard (Brassica Juncea L.) Yield in Soil of Organic Farm of Plastic Film Greenhouse
,
2012
.
[2]
S. Ha,et al.
Impacts of Chemical Properties on Microbial Population from Upland Soils in Gyeongnam Province
,
2011
.
[3]
J. Lim,et al.
Effects of Mixed Organic Fertilizer Application with Rice Cultivation on Yield and Nitrogen Use Efficiency in Paddy Field
,
2009
.
[4]
Young Han Lee,et al.
Chemical Characteristics of Soil and Groundwater in Plastic Film House Fields under Fertigation System
,
2005
.
[5]
Sang-Beom Lee,et al.
Changes in Chemical Properties and Fauna of Plastic Film House Soil by Application of Chemical Fertilizer and Composted Pig Manure
,
2003
.
[6]
V. N. Filippova,et al.
Changes in chemical properties of solonets soils as a result of amelioration and irrigation.
,
1940
.