지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
오류제보하기
Sufficient inorganic nitrogen supply for crop growth is crucial for economically sustainable organic farming. The effects of an application of cover crop biomass on crop growth, nitrogen utilization and carbohydrate composition were investigated during early stage. Short-term changes in soil nitrogen after incorporating fresh hairy vetch and rye shoots were measured. The inorganic nitrogen from cover crops reached the peak at 15 (NH4-N) and 24 (NO3-N) days after incorporation, and then decreased rapidly. The highest concentration of soil nitrate showed at 27 days of incorporation in hairy vetch and at 18 days in rye, and three fold differences exhibited between two treatments. Crop growth under hairy vetch or rye incorporation significantly differed. At 20 DAT, dry matter production in NPK and hairy vetch was about two fold greater than that in rye. Difference in decomposing rates of hairy vetch and rye had also influence on nitrogen status in leaves and roots of pepper plants. Total nitrogen was greater in NPK and hairy vetch than in rye until 20 DAT, whereas inorganic nitrogen (nitrate and nitrite) concentration was higher in rye. Temporal changes in soluble sugars and starch in pepper plants among treatments were similar, although difference in the amount existed. It was suggested that hairy vetch as an alternative nitrogen source promoted crop growth and mineral utilization during early growth stage, whereas an obvious effect in rye was not found.
목차
Introduction
Materials and Methods
Results and Discussion
References
참고문헌 (25)
참고문헌 신청
1. [학술지(정기간행물)] - Abdul-Baki, A. A. / 1993 / A no-tillage tomato production system using hairy vetch and subterranean clover mulches / HortScience 28 : 106 ~ 108
2. [학술지(정기간행물)] - Anonymous / 1991 / Organic production of agricultural products and indications referring thereto on agricultural products and food stuffs / Official Journal of the European Community No 198 : 1 ~ 15
3. [학술지(정기간행물)] - Beare, M. H. / 1992 / Microbial and faunal interactions and effects on litter nitrogen and decomposition in agroecosystems / Ecological Monographs 62 : 569 ~ 591
4. [학술지(정기간행물)] - Cataldo, D. A. / 1975 / Rapid colorimetric determination of nitrate in plant tissue by nitration of salicylic acid / Communication of Soil Science and Plant Analysis 6 : 71 ~ 80
5. [학술지(정기간행물)] - Chapin, F. S. / 1990 / The ecology and economics of storage in plant / Annu. Rev. Ecol. Syst 21 : 423 ~ 447
2. [학술지(정기간행물)] - Anonymous / 1991 / Organic production of agricultural products and indications referring thereto on agricultural products and food stuffs / Official Journal of the European Community No 198 : 1 ~ 15
3. [학술지(정기간행물)] - Beare, M. H. / 1992 / Microbial and faunal interactions and effects on litter nitrogen and decomposition in agroecosystems / Ecological Monographs 62 : 569 ~ 591
4. [학술지(정기간행물)] - Cataldo, D. A. / 1975 / Rapid colorimetric determination of nitrate in plant tissue by nitration of salicylic acid / Communication of Soil Science and Plant Analysis 6 : 71 ~ 80
5. [학술지(정기간행물)] - Chapin, F. S. / 1990 / The ecology and economics of storage in plant / Annu. Rev. Ecol. Syst 21 : 423 ~ 447
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UCI(KEPA) : I410-ECN-0101-2014-521-000806714