Effect of Reproducing Compound Substrate for Cucumber Seedling by Mushroom Residue and Garden Waste Compost
IAN Suo-xia1，CHEN Qing1，GONG Jian-ying1，LI Guo-xue1，JIA Xiao-hong2，LI Yan-ming1*
1College of Resources and Environmental Sciences，China Agricultural University，Beijing 100193，China；2Beijing Soil and Fertilizer Work Station，Beijing 100029，China
Abstract：The spent mushroom compost（MC）and the garden wastes compost（YC）were evaluated as components of substrates in partial substitution of peat for seedlings production．Compost-based substrates，containing different percentage of these 2 composts，were analyzed to find their physicochemical parameter and effect on the growth of Brassica campestris L. ssp. chinensis（L.）Makino var. communis Tsen et Lee，so as to screen out an optimal formula．Then its effects on cucumber（Cucumis sativus L.）seedling quality were investigated comparing with the control（a commercial substrates）．The results showed that the substrate’s composition of MC∶YC∶peat∶vermiculite=3 V∶4 V∶7 V∶6 V was the optimal formula．The percentage of the MC and YC in compost-based substrates should not exceed 40 %，due to the high EC value．The plant height，stem diameter，dry matter accumulation and seedling index and other indicators of cucumber seedling cultivated on this formula substrate were significantly excelled that of the control treatment.
