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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (30): 32-37.doi: 10.11924/j.issn.1000-6850.casb16010027

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同腐熟剂对玉米秸秆腐解及养分释放动态的影响

杨丽丽1,周米良2,邓小华1,田 峰2,张明发2,陈治锋2,张黎明2   

  1. (1湖南农业大学农学院,长沙 410128；2湖南省烟草公司湘西自治州公司,湖南吉首 416000）
  • 收稿日期:2016-01-07 修回日期:2016-08-03 接受日期:2016-08-10 出版日期:2016-10-31 发布日期:2016-10-31
  • 通讯作者: 邓小华
  • 基金资助:
    湖南省烟草专卖局重点项目“湘西州烟区植烟土壤维护和改良研究与示范“(13-14ZDAa03)。

Decomposition Rate and Nutrient Release of Corn Stalk Treated with Different Decomposition Maturing Agents

Yang Lili1, Zhou Miliang2, Deng Xiaohua1, Tian Feng2, Zhang Mingfa2, Chen Zhifeng2, Zhang Liming2   

  1. (1College of Agronomy, Hunan Agricultural University, Changsha 410128;2Tobacco Monopoly Bureau of Xiangxi Autonomous Prefecture, Jishou Hunan 416000)
  • Received:2016-01-07 Revised:2016-08-03 Accepted:2016-08-10 Online:2016-10-31 Published:2016-10-31

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摘要： 利用尼龙网袋法模拟玉米秸秆还田，研究不同腐熟剂对玉米秸秆腐解速率及有机碳、氮、磷、钾养分释放特征。结果表明：（1）玉米秸秆应用不同腐熟剂的腐解速率均表现为：快速腐解期（前10天）＞中速腐解期（10~50天）＞缓慢腐解期（50~100天）。经过100天的分解，玉米秸秆生物量有72.46%~76.09%被分解，应用腐熟剂的累积腐解率均高于未施用腐熟剂处理。（2）玉米秸秆养分释放表现为：K＞P＞C＞N。100天结束时玉米秸秆有机碳、氮、磷、钾养分释放率平均分别为：58.66%、57.3%、88.68%、94.88%。秸秆腐熟剂有益于玉米秸秆中难分解物的分解，可加速秸秆中有机碳、氮、磷的释放。综合比较，有机废物发酵菌曲的效果最佳，更适宜推广。

关键词: 生物反应器, 生物反应器, 烟草植株, 药用蛋白, 口服免疫耐受, 表达体系

Abstract: Using nylon net to simulate stalk return to soil, the decomposition rate and nutrient release of organic C, N, P and K of corn stalk treated with different decomposition maturing agents were studied. The results showed that: (1) the decomposition rate of corn stalk was: fast decomposition period (first 10 days)>medium decomposition period (10-50 days)>slow decomposition period (50-100 days); after 100 days, 72.46%-76.09% of the corn stalk biomass was decomposed; the accumulated decomposition rate under decomposition maturing agent was higher than that of CK; (2) the sequence of nutrient release rate of corn stalk was: K>P>C>N, after 100 days, the average nutrient release rate of organic C, N, P and K of corn stalk was 58.66%, 57.3%, 88.68% and 94.88%, respectively; the decomposition maturing agent was beneficial to difficult destructive materials in corn stalk and could accelerate nutrient release of organic C, N and P. It was demonstrated that zymogeneous bacteria of organic waste had the best effect and could be promoted in production.

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