한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)
- 제31권1호
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- Pages.16-24
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- 1998
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
시설재배지 토양 검정에 의한 배추의 적정 시비량
Optimum Fertilization Based on Soil Testing for Chinese Cabbage Cultivation in Plastic Film Houses
- Hong, Soon Dal (College of Agriculture, Chungbuk National University) ;
- Kang, Bo Goo (Chungbuk Provincial RDA) ;
- Kim, Jai Joung (College of Agriculture, Chungbuk National University)
- 발행 : 1998.03.30
초록
시설재배 토양의 염류집적 방지를 위한 적정 시비량 추천방안을 구명하기 위하여 1996년도에 영동군, 보은군, 청원군, 및 청주시의 시설재배지로부터 염류농도가 다양한 20개 토양을 채취하여 폿트 시험으로 무비구와 시비구로 구분하며 배추의 생산성과 비료효과를 조사하였다. 무비구의 배추 건물중 및 질소, 인산, 칼륨 흡수량을 비옥도 요인으로 그리고 이들 조사자료에 대한 시비구와 무비구의 차이 값을 비료 전체효과 및 비료 질소, 인산, 칼륨효과로 고려하였다. 비옥도 및 비료효과 요인들은 화학적 검정 방법들과 회귀관계를 분석하여 시설재배 토양의 적정 시비량 추천을 위한 검정법의 선발과 검정 기준을 추정하였다. 토양의 전기전도도가 9.3및 15.2 ds/m인 두 토양들은 염류장해에 의하여 배추 묘의 활착이 불가능하였다. 무기태질소(
To determine the optimum application of fertilizers for the cultivation of Chinese cabbage in plastic film house, twenty soils which contain different salts contents were taken from 4 different area of plastic film house cultivation, Youngdong. Boeun county, Cheongweon county, and Cheongju city. The dry weight and the amount of N. P, and K uptakes of Chinese cabbage in the plot of no fertilization were considered as the factors representing the fertility of the soil. And a difference of dry weight and the amounts of N, P, and K uptakes of plants between the plot of fertilization and no fertilization were considered as the factors representing the total effect of fertilizer and fertilizer N, P, and K effects. respectively. These factors of soil fertility and fertilizer effects were estimated by correlation and regression with soil tests in order to find the critical levels and recommended method for optimum fertilization of Chinese cabbage. Chinese cabbage transplanted in two soils, having the electrical conductivity of 9.3 and 15.2 dS/m, were not able to root due to the salts toxicity. The content of inorganic N, the electrical conductivity, and CEC were founded to have significant correlation with the factors of both the soil fertility and fertilizer effects for the cultivation of Chinese cabbage. To determine the weighting degree for the productivity and the fertilizer effects, the standardized partial regression coefficient was analyzed by regression among the factors of fertility, the fertilizer effects, and the soil tests. The coefficient for inorganic N(
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