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| Impacts of Biochar and Garden Waste Compost on Greenhouse Vegetables:I. Soil Physicochemical Properties and Vegetable Yields |
| Received:November 25, 2014 |
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| KeyWord:biochar;garden waste compost;greenhouse vegetable;soil physicochemical properties;yield |
| Author Name | Affiliation | E-mail | | CHEN Yan-hua | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | | | LIAO Shang-qiang | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | | | LI Yan-mei | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | | | ZHANG Qian | Supervision and Testing Center for Agricultural Product Quality of Dezhou, Dezhou 253015, China | | | GUO Ning | Beijing Soil Fertilizer Extension Service Station, Beijing 100029, China | | | ZHANG Lin | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | | | YANG Jun-gang | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | | | SUN Yan-xin | Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, P. R. China, Beijing 100097, China
Research Center of Beijing Municipal Slow and Controlled Release Fertilizers Engineering Technology, Beijing 100097, China | Sunyanxin@sohu.com |
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| Abstract: |
| Many studies have been conducted on the effects of biochar(BIC) or garden waste compost(GWC) on the growth of greenhouse vegetables. However, few reports have been focused on the combined effects of two types of materials. In this study, the combined effects of BIC and GWC at different ratios on soil physical and chemical properties and Chinese cabbage yields were studied in a field experiment. Results showed that:(1) Both BIC and GWC significantly reduced soil bulk density by 2.86%~10.71%, but increased CEC, exchangeable Ca2+, and soil nitrate content by 13.4%~19.6%, 30.2%~56.9%, and 155.0%~628.8%, respectively; (2) BIC applications significantly increased moisture content and total water content of top soil by 7.2%~12.7% and 5.0%~13.4%, while decreased exchangeable Na+, ESP and SAR by 4.5%~12.5%, 18.2%~23.6%, and 18.9%~27.6%, respectively; (3) Applying GWC significantly increased exchangeable Mg2+ by 7.9%~17.1%; (4) Applications of these two materials significantly increased Chinese cabbage yields, especially in the treatments of GWC l5 t·hm-2 +BIC 15 t·hm-2 and BIC10 t·hm-2, which increased the yields by 23.1% and 19.8%, respectively. Meanwhile, these two treatments significantly improved the soil physicochemical properties. Together, they could be recommended for application to greenhouse vegetable fields in Beijing suburbs. |
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