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.
이용수
초록· 키워드
오류제보하기
Soil nutrient status in an organic apple farm was evaluated in relation to a conventional farm to better understand the effects of organic farming system on soil fertility. Soil organic matter, total and mineral N, available P, exchangeable cations, and available micronutrients were monitored at depth of 5-20 cm from May to October in 2006. Average soil organic matter content was 63.3 and 31.0 g kg-1 in organic and conventional farm, respectively. Total N content was 3.3 and 1.7 g kg-1 in average for organic and conventional farm, respectively. Ammonium and nitrate N in organic farming were maintained at relatively stable levels, but in the conventional farm the levels were very high in early season due to the chemical fertilizer application. In the organic apple farm, available P content in May was lower than that found in the conventional farm, but during the growing season available P content was continuously increased and in August the content was more than 1000 mg P2O5 kg-1. The organic farm maintained relatively greater exchangeable K, Ca, and Mg levels than the conventional farm. Available Cu, Fe, and Mn contents in the conventional farm were relatively greater than those found in the organic farm. However, available Zn extracted in 0.1 M HCl was much greater in the organic farm. Nutrient levels above crop needs were observed in both conventional and organic apple farm suggesting a more appropriate management of soil nutrients in organic farming to secure its fundamental functions for the sustainable agriculture.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusions
Acknowledgement
References
참고문헌 (30)
참고문헌 신청
Blaise, D. , 2004 , Effect of organic and modern method of cotton cultivation on soil nutrient status , Commun. Soil Sci. Plant Anal 35 : 1247 ~ 1261
Bremner, J. M. , 1982 , Nitrogen Total In: Methods of soil analysis, Part 2: Chemical and microbiological properties , SSSA, Madison : 595 ~ 624
Bulluck, L. R. , 2002 , Organic and synthetic amendments influence soil microbial, physical and shemical properties on organic and conventional farms , Appl. Soil Ecol 19 : 147 ~ 160
Carter, M. R. , 2002 , Soil quality for sustainable land management: organic matter and aggregation interactions that maintain soil functions , Agron. J 94 : 38 ~ 47
Edmeades, D. C , 2003 , The long-term effects of manures and fertilizers on soil productivity and quality , A review. Nutr. Cycl. Agroecosys 66 : 165 ~ 180
Bremner, J. M. , 1982 , Nitrogen Total In: Methods of soil analysis, Part 2: Chemical and microbiological properties , SSSA, Madison : 595 ~ 624
Bulluck, L. R. , 2002 , Organic and synthetic amendments influence soil microbial, physical and shemical properties on organic and conventional farms , Appl. Soil Ecol 19 : 147 ~ 160
Carter, M. R. , 2002 , Soil quality for sustainable land management: organic matter and aggregation interactions that maintain soil functions , Agron. J 94 : 38 ~ 47
Edmeades, D. C , 2003 , The long-term effects of manures and fertilizers on soil productivity and quality , A review. Nutr. Cycl. Agroecosys 66 : 165 ~ 180
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UCI(KEPA) : I410-ECN-0101-2014-521-000806683