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논문 기본 정보

자료유형
학술저널
저자정보
Seul-Bi Lee (RDA) Yang-Min Kim (RDA) Ye-Jin Lee (RDA) Yo-Sung Song (RDA) Deog-Bae Lee (RDA) Jwakyung Sung (Chungbuk National University)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제52권 제4호
발행연도
2019.11
수록면
429 - 437 (9page)

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With increasing fertigation, the precise fertigation schedule by crop growth stage has been consistently required as a guideline for stable crop production. The aim of this study is to develop the fertigation guideline for spring cabbage. To achieve this goal, we firstly investigated the nutrient uptake pattern of Chinese cabbage, which grown in pots filled with sandy loam soil in a greenhouse from April to June in 2018, and determined optimal nutrient (N, P and K) supply by growth stages. Based on soil NO₃-N based recommendation, nitrogen (N) supply was divided into 4 levels (0.5N, 0.75N, 1.0N and 1.5N). Soil NO₃-N concentrations somewhat differed from growth stages, and 1.5N represented the highest level. Chinese cabbage showed linear growth patterns and there was no clearly significant difference in growth and nutrient uptake by N supply levels except for 0.5N treatment. The relative growth (expressed as a dry weight) of Chinese cabbage occupied 60% and 40% of total accumulated growth (average of 0.75 and 1.0N) at 40 and 60 days, respectively. Mineral uptake (N, P, K) of Chinese cabbage by growth stages showed a linear pattern in general. N was taken up 54% and 46% of total uptake, P uptake 56% and 44%, and K uptake 59% and 41% at 40 and 60 days, respectively. Conclusively, we carefully suggest that the fertigation guideline for Chinese cabbage could save fertilizer supply through daily nutrient demand and target yield, and thus alleviate the problems in relation to nutrient accumulation in greenhouse soils.

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ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2020-523-000120770