Improvement in Upland Soil Management on Different Topographies and Crops
2010
Kim, C.Y., Gyeongbuk Agricultural Technology Administration, Daegu, Republic of Korea | Seo, Y.J., Gyeongbuk Agricultural Technology Administration, Daegu, Republic of Korea | Kwon, T.Y., Gyeongbuk Agricultural Technology Administration, Daegu, Republic of Korea | Park, J.H., Gyeongbuk Agricultural Technology Administration, Daegu, Republic of Korea
The investigations were conducted to improve the fertilizer use in upland soil on the different topographies and crops at 163 upland fields located in the parts of Gyengsangbuk-do area. The soil distribution was based on crops and topographiese. Soils from these fields were analyzed for pH, organic mater, available phosphorus (P₂O∧5), exchangeable potassium, calcium and magnesium, and found to have pH 5.9, organic mater 23.2 g kg-¹, P₂O∧5 549 mg kg-¹, exchangeable potassium, calcium and magnesium were 0.9, 5.6 and 2.3 cmol+ kg-¹, respectively. The excessive distribution percent of soil samples for crops were higher than the optimum range in av. P₂O∧5 and exchangeable potassium. The content of organic matter, P₂O∧5, exchangeable potassium, calcium and magnesium were increased with the decreasing slope. The major chemical components in fans topographies were 28.4 g kg-¹ for organic matter, 700 mg kg-¹ for P₂O∧5 and 1.0 cmol∧c kg-¹ for exchangeable potassium relatively higher in comparison with other topographies. The content of P₂O∧5 were lower in diluvium and hilly areas than other topographies. The soil of red pepper was more influenced by the amount of applied fertility than the slope and topographies, On the other hand the crops like soybean and sesame, were more affected by the slope and topographies.
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