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| Composting of Wheat Straw Flowerpots and Its Evaluation |
| Received:July 08, 2015 |
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| KeyWord:straw flowerpot;composting;organic nitrogen;germination index |
| Author Name | Affiliation | E-mail | | HUANG Hong-ying | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | | | SUN En-hui | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | | | WU Guo-feng | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | | | QU Ping | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | | | CHANG Zhi-zhou | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | czhizhou@hotmail.com | | XU Yue-ding | Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Science, Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Nanjing 210014, China | |
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| Abstract: |
| Utilizing straw flowerpots to grow plant seedlings and ornamental plants would promote comprehensive use of crop straws. However, how to dispose discarded straw flowerpots has become a new concern. The present study investigated dynamics of nutrients in crushed straw flowerpot(CSF) during composting. Seed germination index(GI) of composted flowerpots was also examined. The composting experiment included four treatments, which was CSF amended with partially composed material mix(PCMM) of composed mushroom residues:composted Chinese medicinal dregs:fresh flammulina residues of 4:1:1 at 0:10(CK), 1:10(TⅠ), 2:10(TⅡ), and 3:10(TⅢ). Results showed that CSF amount had no significant effects on temperature, pH and moisture during composting, but significantly influenced total carbon and nitrogen, which increased significantly with CSF rates. CSF increased ammonium nitrogen(NH4+-N) in the composts. The content of amino acid nitrogen and amino sugar nitrogen in the composts had a rising trend, which was beneficial to plant growth and microbial activity. The greater GI values in all CSF treatments than CK indicated that composting process made the compost harmless. Temperature, moisture content, pH, organic carbon, TN and GI could be used as indexes for evaluating compost maturity. |
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