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Effect of Application Added Phosphorus and Potassium for Potato and Chinese Cabbage in Mounded Highland Soil  

Lee, Choon-Soo (National Alpine Agricultural Experiment Station, RDA)
Lee, Gye-Jun (National Alpine Agricultural Experiment Station, RDA)
Shin, Kwan-Yong (National Alpine Agricultural Experiment Station, RDA)
Ahn, Jae-Hoon (National Alpine Agricultural Experiment Station, RDA)
Lee, Jeong-Tae (National Alpine Agricultural Experiment Station, RDA)
Hur, Bong-Koo (Youngyang Pepper Experiment Station)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.35, no.6, 2002 , pp. 372-380 More about this Journal
Abstract
This study was conducted to investigate the changes of soil properties for potato and Chinese cabbage after application adding phosphorus and potassium fertilizers in the mounded highland soil from 1999 to 2001. Experimental plots were designed with control(NPK+Lime+Compost) and chemical improvement(Control+Application adding P and K). Mounded soil before field experiment of first year(1999) was low in organic matter, available phosphorus and exchangeable potassium, and the soil texture was loamy sand soil. After 3 years, the contents of soil organic matter increased a little, and available phosphorus and exchangeable potassium contents were remarkably increased. The crop growth in chemical improvement plot was better than control plot. Yield of chemical improvement plot in comparison with control plot was increased by 5~22% for potato and 6~25% for Chinese cabbage after 2~3 years.
Keywords
Potato; Chinese cabbage; Highland; Mounded soil; Heavy application; Phosphorus; potassium;
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