한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)
- 제29권4호
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- Pages.342-346
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- 1996
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
가리질비료(加里質肥料) 연용(連用) 고추재배(栽培) 밭토양(土壤)의 치환성가리함량(置換性加里含量) 변동양상(變動樣相) 예측방법(豫測方法)
Prediction Model for Accumulation and Decline of Exchangeable Potassium in Upland Soil with Long-Term Application of Fertilizer Potassium
- Jung, Beung-Gan (National Institute of Agricultural Science and Technology, RDA) ;
- Yoon, Jung-Hui (Horticultural Research Institute, RDA) ;
- Hwang, Ki-Sung (Horticultural Research Institute, RDA)
- 발행 : 1996.12.30
초록
가리비료(加里肥料)의 시비(施肥)수준이나 퇴비(堆肥) 및 퇴비 계분병용여부(鷄糞倂用與否)에 따른 밭토양(土壤) 치환성가리함량(置換性加里含量)의 장기변동양상(長期變動樣相)을 구명(究明)하기 위하여 고평통(高坪統) 토양(土壤)에서 치환성가리함량(置換性加里含量)이 각각(各各) 1.68,
Field experiments were conducted to investigate the mode of changes in exchangeable K contents in the soil under the continued(for three years) application of different levels of K fertilizer(KCl) with and without application of conventional compost(CC) and chicken-dung derived compost (CDC) for red pepper cultivation at two field parcels with different exchageable K contents on Gopyong silty loamy soil. The application of KCl at standard rate for red-pepper resulted in the increase in exchangeable K in the soil after each harvest of the crop. while no application of K and the application of KCl at one half of the standard rate tended to lower the exchangeable K in top soil with the cultivation of the crop. The application of compost in addition to KCl ammplified the difference in exchangeable K in the soil before and after the harvest of each crop. An equation could resonably well predict the exchageable K content in top soil after the years of crop cultivation, under different treatments. were developed.