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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (30): 18-22.doi: 10.11924/j.issn.1000-6850.2012-2859

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

不同秸秆及绿肥浸提液对水稻的化感作用研究

魏云霞 鲁剑巍 李小坤 薛欣欣 刘晓伟 徐正伟   

  • 收稿日期:2012-08-20 修回日期:2012-09-21 出版日期:2013-10-25 发布日期:2013-10-25
  • 基金资助:
    公益性行业（农业）科研专项

Study on allelopathic effects of extracts of different kinds of straw and green manure on rice

  • Received:2012-08-20 Revised:2012-09-21 Online:2013-10-25 Published:2013-10-25

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摘要： 研究不同秸秆及绿肥对水稻的化感作用，为稻田秸秆及绿肥还田提供参考。采用室内培养试验，通过测定稻草、油菜秸秆、麦秸、紫云英及紫云英+油菜混合浸提液对水稻发芽及幼苗生物量的影响，研究不同秸秆及绿肥对水稻的化感作用。不同秸秆及绿肥化感作用对水稻种子发芽率均无显著影响，只是不同程度地延迟了种子的发芽进度；不同浓度的各浸提液对水稻幼苗鲜重有显著的促进作用，稻草、油菜秸秆、麦秸、紫云英及紫云英+油菜浸提液各浓度下对鲜重的最大促进作用分别为16.84%、6.72%、17.50%、16.13%、25.84%；稻草、油菜秸秆、麦秸、紫云英及油菜+紫云英的综合敏感指数分别为4.70%、4.10%、7.96%、0.94%、5.20%。各秸秆及绿肥对水稻均表现为化感促进作用，紫云英与油菜混合使用对水稻的化感促进作用较二者单一使用效果更好。

关键词: 管理对策, 管理对策

Abstract: Allelopathy of extracts from different kinds of straw and green manure was examined to provide the reference for straw and green manure application in the rice field. By using the incubation experiment, the effects of extracts of rice straw, rape straw, wheat straw, Chinese milk and Chinese milk mixed with rape on rice germination and seedling biomass were studied. The results showed that rice straw, rape straw, wheat straw, Chinese milk and Chinese milk mixed with rape had no effect on the germination rate of rice, but could delay the progress of germination. Different extracts at all the concentrations significantly promoted the seedling fresh weight. Extracts of rice straw, rape straw, wheat straw, Chinese milk and Chinese milk mixed with rape at different concentrations increased the seedling fresh weight as high as 16.84%, 6.72%, 17.50%, 16.13%, 25.84%, respectively. The sensitive index of rice straw, rape straw, wheat straw, Chinese milk, Chinese milk mixed with rape straw were 4.70%, 4.10%, 7.96%, 0.94%, 5.20%, respectively. All kinds of straw and green manure showed favorable allelopathic on rice, Chinese milk mixed with rape straw displayed better than Chinese milk vetch or rape alone.

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