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| 不同过磷酸钙添加量对蔬菜废弃物堆肥的影响 |
| Effects of Different Addition Amounts of Superphosphate on Vegetable Waste Compost |
| 投稿时间：2016-09-13 |
| DOI：10.13254/j.jare.2016.0218 |
| 中文关键词: 过磷酸钙，蔬菜废弃物，堆肥，氮素损失，成本效益 |
| 英文关键词: superphosphate, vegetable waste, composting, nitrogen loss, cost-benefit |
| 基金项目:农业部公益性行业（农业）科研专项（201303089-2）；北京市科委重大项目“菜田果园面源污染综合防治技术研究与集成示范”（D161100005516003）；山东省2015年度农业重大应用技术创新项目“畜禽粪便资源化高效利用关键技术研究” |
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| 中文摘要: |
| 试验研究了不同过磷酸钙添加量对蔬菜废弃物堆肥腐熟进程的影响。结果表明，添加过磷酸钙能够提高堆体温度，其中添加量为堆肥物料干重10.26%时的最高温度值最高，为64.33℃。堆肥结束时，添加过磷酸钙对各堆肥处理的C/N 值无显著影响，但降低了堆肥物料的pH 值，提高了电导率，其中添加量介于物料干重4.10%和10.26%时的EC 值显著高于CK 处理（P<0.01）；添加量低于物料干重10.26%时的GI值均显著高于CK 处理（P<0.01），其中添加量为物料干重2.05%（S5 处理）时的值最大，为105.61%。添加过磷酸钙显著降低了堆肥的氮素损失率（P<0.05），其中添加量为物料干重2.05%时的氮素损失率最低，仅为23.94%，且此添加量下的产投比最大，为3.93。本试验条件下，添加过磷酸钙可显著提高堆肥腐熟度，显著降低堆肥物料的氮素损失率，其适宜添加量为物料干重的2.05%。 |
| 英文摘要: |
| The effects of different addition amounts of superphosphate on vegetable waste compost were studied. Results showed that, addition of superphosphate improved the temperature during the compost. It had the highest temperature of 64.33℃, when the addition quantity of superphosphate was 10.26% of dry matter weight. At the end of the composting, adding superphosphate had no significant effect on C/N, however, it decreased pH and improved the EC of the compost. The EC values were significantly higher than CK, when the addition amount was be tween 4.10%and 10.26%of dry matter weight. When the addition below 10.26%, the GI values were significantly higher than CK(P<0.01), and the highest value was 105.61%, when the addition was 2.05%(S5). Adding superphosphate significantly reduced the nitrogen loss rate of composting(P<0.05), and the lowest was 23.94%，when the addition was 2.05%, meanwhile, the input-output ratio was 3.93, which was the highest value. Under this experimental condition, adding superphosphate promoted the compost maturity significantly, reduced the nitrogen loss rate, and the optimal addition of superphosphate was 2.05%of dry matter weight. |
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