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Comparative Analysis of Physicochemical Properties of Peat-moss for Vegetable Seedling Production |
FANG Man-man,ZHANG Zhi-gang,DONG Chun-juan,SHANG Qing-mao* |
Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China |
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Abstract In this study,we analyze the physiochemical properties of peat-moss for vegetable seedling production.Some remarkable differences are found between 4 overseas peat-moss(from Denmark,Finland,Germany)and 4 domestic peat-moss(from Qingyuan County of Liaoning Province,Liaoyuan County of Jilin Province,Huachuan County and Yanshou County of Heilongjiang Province).The results indicate that the decomposition degree of domestic peat-moss is H3-H5,much higher than that of the overseas peat-moss(H1-H2).Therefore,the ratio of<0.5 mm particle is greater,about 4-10 folds over the overseas peat-moss.Also,the saturation moisture content of the domestics is lower,only 50% of the values obtained from the overseas peat-moss.Furthermore,we demonstrate that compared to the overseas,the domestic peat-moss contains higher content of total N,P and K,available N,but lower content of available P and K.
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Received: 12 October 2011
Published: 05 March 2012
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