中国稻米

中国稻米 ›› 2023, Vol. 29 ›› Issue (2): 93-97.DOI: 10.3969/j.issn.1006-8082.2023.02.019

• 品种与技术 • 上一篇    下一篇

不同稻田种养模式对水稻生长、二化螟及杂草的影响

罗雨聪(), 王忍, 张印, 廖欣, 汤伟, 钟康裕, 黄璜(), 陈灿()   

  1. 湖南农业大学，长沙 410000
  • 收稿日期:2022-09-21 出版日期:2023-03-20 发布日期:2023-03-14
  • 通讯作者: *hh863@126.com;CC973@126.com
  • 作者简介:1183610086@qq.com
  • 基金资助:
    国家重点研发计划项目“湘北优质水稻生态技术整合与示范”(2018YFD0301003)

Effects of Different Planting and Breeding Models on Rice Growth, Chilo suppressalis and Weeds

LUO Yucong(), WANG Ren, ZHANG Yin, LIAO Xin, TANG Wei, ZHONG Kangyu, HUANG Huang(), CHEN Can()   

  1. Hunan Agricultural University, Changsha 410000, China
  • Received:2022-09-21 Online:2023-03-20 Published:2023-03-14
  • Contact: *hh863@126.com;CC973@126.com
  • About author:1183610086@qq.com

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摘要：

为探究不同稻田种养模式对水稻生长特性、二化螟及杂草防控效果的影响，设置稻田养牛蛙（DNW）、稻田养黑斑蛙（DW）、稻田养鱼（DY）和水稻单作（CK）4个处理，调查各处理水稻叶面积指数、干物质积累量、水稻产量及产量构成、二化螟虫口密度和杂草密度。结果表明，在齐穗期，DW处理的叶面积指数较CK显著增加15.23%；在水稻生长期DW处理对二化螟的防治效果为49.60%，杂草密度防治效果为73.78%，杂草干物质防治效果为76.44%，DW处理的杂草干物质量较CK显著下降。DW、DNW处理成熟期的穗干物质量较CK分别高3.21%和12.10%，但差异不显著。DW处理的有效穗数、穗粒数较CK显著增加19.45%和18.50%。水稻实际产量各处理间差异不显著，DW与CK一致，DNW比CK增产9.89%，稻蛙共作具有较好的稳产效果。综上所述，“稻-黑斑蛙”共生能提高水稻光合作用，减少二化螟危害和稻田杂草发生，达到稳定水稻产量、减少农药使用的目的。

关键词: 稻蛙共生, 稻鱼共作, 叶面积指数, 干物质量, 二化螟, 杂草

Abstract:

In order to explore the effects of different planting and breeding models on rice growth characteristics, chilo suppressalis and weeds, four treatments were set: bullfrog rearing in paddy field （DNW）, black-spotted frog in paddy field （DW）, fish rearing in paddy field（DY） and rice monoculture （CK）. The rice leaf area index, dry matter accumulation, rice yield and yield composition, chilo suppressalis population density and weed density were investigated. The results showed that the leaf area index of DW treatment increased significantly by 15.23% compared with CK at full heading stage. DW treatment had 49.60% control effect on chilo suppressalis, 73.78% control effect of weed density, and 76.44% control effect of weed dry matter in rice growth period. The weed dry matter weight of DW treatment was significantly lower than that of CK. The ear dry matter weight in mature stage of DW and DNW treatments were 3.21% and 12.10% higher than CK, but the difference was not significant. Compared with CK, the effective panicle and grain number per panicle increased by 19.45% and 18.50% in DW treatment, and the difference was significant. There was no significant difference in the rice yield among the different treatments, DW treatment was consistent with CK, and DNW treatment increased yield by 9.89% compared with CK, the rice-frog symbiosis had a good effect of stabilizing yield. To sum up, rice-black spotted frog symbiosis could improve rice photosynthesis, reduce the damage of rice borer and the occurrence of weeds in rice fields, and achieve the purpose of stabilizing rice yield and reducing the use of pesticides.

Key words: rice-frog symbiosis, rice-fish symbiosis, leaf area index, dry matter weight, chilo suppressalis, weed

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