Sustainable Production Techniques in Greenhouses: A Case Study on Economic Analysis of Organic Lettuce Production in Turkey
Makaleler > Tam Makale · 2004
Yazarlar: Sait ENGİNDENİZ, Yüksel TÜZEL
Journal of Agricultural & Food Information, Uluslararası, Scopus, 2004, cilt 6, ss 25-36
Özet
This study is an economic analysis of the use of different organic fertilizers for organic greenhouse lettuce production as an on-farm trial during the autumn season of 2001–2002. The selected site is located in the preservation area of the Tahtali Dam, which is the most important water source providing drinking water to Izmir, the third largest city in Turkey. The tested fertilizer applications were composed of: (a) farmyard manure, 15 tons/ha−1 + E 2001 + All grow Bioplasma; (b) farmyard manure, 30 tons/ha−1; (c) chicken manure, 15 tons/ha−1 + E 2001 + All grow Bioplasma; (d) chicken manure, 30 tons/ha−1; and (e) control (no fertilizer). The total net profit ranged between $0.38 and $0.90/m2, depending on organic fertilizer applications. The results showed that organic lettuce production with different organic fertilizers can be achieved in greenhouses, but there is still a need to solve some problems related to greenhouse climate control, pest and disease control, biological control, crop rotation, marketing and training of growers.