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Position: Home > Articles > A Case Study on Living Mulch in Organic Winter Wheat Production Journal of Agro-Environment Science 2003,22 (06) 87-90

冬小麦有机生产与植体覆盖技术的研究

作  者:
李志芳
单  位:
中国农业大学农学与生物技术学院
关键词:
冬小麦;有机农业;植体覆盖;氮素营养
摘  要:
以冬小麦(TriticumaestivumL.)有机生产为例,研究了有机农业不同方式氮素供应的能力差异,对比了植体覆盖(S1)和施用有机肥(S2)两个生产系统。结果表明,前者在小麦抽穗前的生长量和植株体内的NPK含量明显低于后者。此后,植体覆盖系统冬小麦生长和NPK吸收都有一个明显的飞跃。最后,植体覆盖小麦单产和麦粒含氮量均与施用有机肥的小麦接近。这一变化趋势与土壤可溶性氮素含量变化一致,而且土壤可溶性氮素含量与植体覆盖作物的生长量一致。
译  名:
A Case Study on Living Mulch in Organic Winter Wheat Production
作  者:
LI Zhi fang (College of Agronomy and Bio- Technique, China Agriculture University, Beijing 100094, China)
关键词:
winter wheat; organic agriculture; living mulch; nitrogen availability
摘  要:
This paper highlights a trial work on comparing of two procedures of nitrogen management in organic winter wheat production: one is living mulch system (S1), another is organic fertilization (S2). It has been discovered that both of NPK contents in wheat plant tissue and wheat biomass for the former were lower than that for the later before heading. Afterwards, wheat plant in the living mulch system had a rapid growth and with significantly NPK absorption. Finally, the yields of wheat and nitrogen contents exhibited little variation for both S1 and S2. This wheat plant- growing tendency was consistent with soil soluble nitrogen availability. Soil available nitrogen content in S1 was in accordance with the living mulch plant biomass accumulation.

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