Organic crop production has become a major business due to rising consumer demand, price premiums and increasing market opportunities. A field experiment was conducted to compare organic and conventional production systems by evaluating growth, yield and mineral content of lettuce leaves. Six organic productions systems, green manure (GM), farmyard manure (FYM), commercial organic fertilizer (COF) and their combinations were compared with conventional production system (CPS). A non-fertilized control treatment was also included. Plant growth and yield were found higher in the organic production system compare to conventional production system. The lowest plant growth and yield were obtained in the control treatment. Values of vitamin C content of lettuce grown in the organic production systems were higher than those of the conventional production system. The highest lettuce yield (71.8 and 76.5 t ha-1) was obtained with GM + FYM treatment. The results indicated that combined use of green manure and farmyard manure can be successfully used in organic lettuce production.
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机译：由于消费者需求增加，价格溢价和市场机会增加，有机农作物生产已成为一项主要业务。通过评估生菜叶片的生长，产量和矿物质含量，进行了田间试验以比较有机和常规生产系统。将六个有机生产系统，绿肥（GM），农家肥（FYM），商业有机肥料（COF）及其组合与常规生产系统（CPS）进行了比较。还包括非受精对照治疗。与常规生产系统相比，有机生产系统中的植物生长和产量更高。在对照处理中获得最低的植物生长和产量。有机生产系统中生长的生菜中维生素C含量的值高于常规生产系统中的值。 GM + FYM处理获得最高的生菜产量（71.8和76.5 t ha-1）。结果表明，绿肥和农家肥的结合使用可以成功地用于有机莴苣生产。
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