A survey on the soil environments of alpine vegetable housing in Honam area
1988
Yoo, C.H. | Cho, G.H. | Choi, J.W. | Park, K.H. (Rural Development Administration, Iri (Korea R.). Honam Crops Experiment Station)
This survey was carried out to obtain the basic information for the stable high yield of income-crops. Cropping systems, soil morphological and chemical properties were investigated. In Jinan and Jangsu, cultivated area of radish was 76.5% and 65.4%, respecitively, but in Unbong Chinese cabbage, 71.1%, by second crop. In topographical distribution, the mountain foot slope area in Jinan, Jangsu and Unbong was 69.77 and 85%, respectively. In the distribution of elevation, semi-alpine region in Jinan and Unbong was 85 and 69%, respectively, but alpine region in Jangsu was 62%, of cultivated area. Ploughing depth was 0 to 10cm in Jinan and Jangsu, and 11 to 15cm, in Unbong. Gravel content class was 4th class in Jinan and 3rd class in Jangsu and Unbong. For the distribution of soil types, normal upland came to 69.2% in Unbong, sandy and skeletal upland, 46.1% and normal and sandy upland, 39 and 38% respectively, in Jangsu. The upland soil classified as the 5th class was improper for cropping. For the chemical properties according to topography available phosphate (-0.344* ), Ca (-0.398* ), K (-0.485* ) and CEC (-0.325* ) showed the negative significancy with the elevation. Among the variations of chemical properties by continuous cropping, the soil pH (-0.491* ) and the content of organic matter (-0.434* ), Ca (-0.705* ), CEC (-0.512* ), total nitrogen (-0.559* ) showed high negative correlations, while the contents of available phosphate (0.671* ) and K (0.543* ) showed high positive correlations, with the number of years of continuous cropping
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