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Studies on Physicochemical Property and Seedling Culture Effect of Caragana Included Substrates |
SUN Jing,Maimaitituxun Rouzi,QU Mei,GAO Li-hong |
College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China |
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Abstract Caragana Korshinskii Kom was chosen to be used with very good results as growth media instead of peat.The parameters of the compound substrates were tested,including bulk density,total porosity,aeration porosity,water-holding porosity,porosity ratio,and pH and EC values.Experiments were conducted with cucumber‘Jinyu No.5’nurseries using caragana-included substrates.Rate of emergence,seedling dry and wet matter were also tested to figure out the effects that caragana had shown upon cucumber seedling.The results indicate that 50% of caragana-included substrate,being thoroughly decomposed,has the best quality for cucumber seedling,as compared with the traditional peat substrates.So the caragana-included substrates are feasible to replace peat substrates.
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Received: 03 August 2011
Published: 11 October 2011
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