Journal of Food, Agriculture and Environment

Chemical composition of lettuce (Lactuca sativa) grown in soils amended with different sources of animal manure to simulate organic farming conditions

Author(s):

Alaeddin B. Tahboub ^1*, Taleb R. Abu-Zahra ², Amal A. Al-Abbadi ²

Recieved Date: 2010-07-17, Accepted Date: 2010-11-04

Abstract:

This study was conducted during the 2007/2008 season, at Station of Princess Tasneem Bent Ghazi for Technological Research in Humrat Al-Sahen, Jordan, to study the effect of four different organic matter sources and conventional system on the chemical composition and vegetative production of lettuce (Lactuca sativa) plants. The experiment was commenced in mid November 2006 and concluded by the end of February 2007. Six treatments were applied to the experimental area; the tested materials were four organic matter sources cattle, poultry and sheep manures and compost, without the use of any chemical materials or pesticides (to simulate organic farming conditions), conventional (included use of chemical fertilizers and pesticides) and control treatments (neither chemical fertilizers nor organic materials were used). Organic matter was added and incorporated for each replicate with 4 kg organic matter for each square metre. The research work aimed to make a comparison between lettuce grown using different organic matter sources and those grown under conventional production systems, regard to vegetative growth and chemical composition of the lettuce leaves, using a randomized completely block design (RCBD), with three replicates. Results showed that sheep, poultry and cattle manure significantly improved lettuce quality, since higher leaf dry weight and root fresh weight were produced. Also these tested materials gave the highest mean of vitamin C, total phenols and chlorophyll content compared to the conventional or control treatments.

Keywords:

Chlorophyll, conventional, lettuce (Lactuca sativa), organic, phenol, vitamin C

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Journal: Journal of Food, Agriculture and Environment
Year: 2010
Volume: 8
Issue: 3&4
Category: Agriculture
Pages: 736-740

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