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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.11
- 수록면
- 626 - 635 (10page)
이용수
초록· 키워드
오류제보하기
As fertigation facilities in a greenhouse have increased, information on the nutrient requirement along the plant growth stages is highly needed. This study investigated the nutrient uptake pattern of leafy lettuce cultivated in a pot filled with a sandy loam soil in a greenhouse from March to June in 2016 and to calculate the amount of nutrient supply with growth stages of lettuce by fertigation system. With different nitrogen (N) top-dressing supply levels (0.5N, 0.75N, 1.0N, and 1.5N) by soil NO₃-N based recommendation, the characteristics of growth and nutrient uptake of lettuce along the growth stages have been evaluated. Soil NO₃-N decreased along the growth stages, having no significant differences among N supply levels lettuce leaf growth showed linear growth patterns and there was no clear difference in growth and nutrient uptake among N supply levels. The growth of lettuce was 17%, 38%, and 64% of total accumulated growth of lettuce (dried weight, averaged N supply level) after 40 days, 50 days, and 60 days after seeding (DAS), respectively, reached to 38.9 kg 10a<SUP>-1</SUP> at 70 DAS. Mineral uptake (N, P₂O<SUB>5</SUB>, and K₂O) of lettuce along the growth stages, showing different patterns with nutrient species, was characterized into increasing pattern in N uptake, steady-increasing pattern in P₂O<SUB>5</SUB> uptake, and step-like pattern in case of K₂O uptake. With growth stages of lettuce, the N uptake was 26%, 17%, 20%, and 37% of total N uptake, 24%, 3%, 12%, and 50% in case of total P₂O<SUB>5</SUB> uptake, and 20%, 31%, 12%, and 34% of total K₂O uptake. In conclusion, the scheduling of the fertigation nutrient supply designed on the basis of daily nutrient uptake and nutrient use efficiency by fertigation system could contribute to maintain stable productivity of lettuce and ameliorate the nutrient accumulation of greenhouse soil.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (29)
참고문헌 신청
Alam, S.M., S.A. Shah, and M.M. Iqbal. 2005. Evaluation of method and time of fertilizer application for yield and optimum P-efficiency in wheat. J. Sci. Technol. 27(3):457-463.
Cho, Y.D., S.K. Joung, and J.C. Heo. 1998. Effects of fertigation system on the yield and quality of cherry tomatoes in plastic house. Korean J. Hort. Sci. Technol. 16(1):142.
David, S., T.L. Righetti, E.E. Sanchez, and H. Khemira. 1992. Management of nitrogen and calcium in pear trees for enhancement of fruit resistance to postharvest quality. HortTech. 2:382-386.
Greenwood, D.J., T.J. Cleaver, M.K. Turner, J. Hunt, K.B. Niendorf, and S.M.H. Loquens. 1980. Comparison of the effects of nitrogen fertilizer on the yield, nitrogen content and quality of 21 different vegetable and agricultural crops. J. Agric. Sci. 95(2):471-485.
Ha, S.K., Y.K. Son, K.H. Jung, Y.J. Lee, M.J. Cho, H.J. Yun, and J.K. Sung. 2015. Estimation of growth stage-based nitrogen supply levels for greenhouse semi-forcing zucchini cultivation. CNU J. Agric.Sci. 42(4):319-324.
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UCI(KEPA) : I410-ECN-0101-2019-523-000170159