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Effect of Different Grinding Degrees of Coconut Coir Substrate on Growth and Quality of Cucumber Plug Seedlings |
XIANG Zong-guo,ZHAO Rui*,CHEN Jun-qin |
College of Horticulture,Shenyang Agricultural University,Shenyang 110161,Liaoning,China |
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Abstract Three treatments with different grinding degrees of coconut coir substrate including item 5,10,15,were designed.The ratio between coconut coir and vermiculite was 3 V∶1 V.The physical and chemical properties of unit weight,total porosity,water holding pores,pH,conductivities and different physiological and biochemical indexes were investigated by comparing with the control of peatmoss∶vermiculite = 3 V∶1 V,so as to screen out an optimal formula.The results showed that among 3 different grinding degrees,treatment of item 10 was in favor of cucumber growth.The plant had reached an ideal growth state: cucumber seedling index,root shoot ratio,dry weight,chlorophyll content of seedling,net photosynthetic rate were all better than the other 2 treatments.
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Received: 14 July 2011
Published: 28 December 2011
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