Effects of Liquid Pig Manure Application Level on Growth Characteristics, Yield, and Feed Value of Whole Crop Barley at Reclaimed Tidal Land in Southwestern Korea

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate liquid pig manure (LPM) application rates on the growth characteristics,yield, and feed value of whole crop barley in Yeongsangang and Saemangeum reclaimed tidal land. Electronicconductivity (EC), organic matter (OM), and available phosphate (Av. P2O5) increased in chemical propertiesof Yeongsangang and Saemangeum soil as raising LPM application level. As increasing LPM applicationlevel, exchangeable Na+ significantly increased in Yeongsangang, while exchangeable K+ significantlyincreased in Saemangeum. Plant height was not significantly different from LPM 100% to LPM 200% inYeongsangang and in Saemangeum. Dry matter yield of whole crop barley increased steadily, but crop yieldof LPM 200% in Yeongsangang (10.5 ton ha-1) was as much as that of LPM 150% (10.0 ton ha-1). Yield ofLPM 200% (11.2 ton ha-1) in Saemangeum was similar to that of LPM 150% (10.5 ton ha-1). Crude protein(CP) increased depending on LPM application level, but total digestible nutrients (TDN) increased regardlessof LPM application level. LPM 200% was the highest in TDN yield (Yeongsangang: 7.4 ton ha-1, Saemangeum:6.9 ton ha-1), but there was no statistical difference between LPM 150% (Yeongsangang: 6.9 ton ha-1, Saemangeum:6.6 ton ha-1) and LPM 200%. From the results described above, optimum rate of LPM for cultivating whole cropbarley is considered 100% in Yeongsangang reclaimed tidal land and 150% in Saemangeum reclaimed tidal land,showing that the effect of LPM application is better in Segmentation than that in Yeongsangang for yield ofwhole crop barley.

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