摘要
为了了解全生物降解地膜在太湖地区稻田中的应用效果,设置3个处理,系统对比了各处理的水稻分蘖数、株高、产量、成本和土壤养分指标等。结果表明:全生物降解地膜处理提高了水稻无效分蘖数,导致水稻穗数增加,结实率降低,全生物降解地膜PLA处理和全生物降解地膜PBAT处理水稻实产较常规不覆膜对照分别降低0.12%和1.68%;全生物降解地膜处理显著抑制了稻田杂草,全生物降解地膜PLA处理和全生物降解地膜PBAT处理平均杂草抑制率分别达87.13%和89.18%;全生物降解地膜处理条件下,土壤有机质、全氮、全磷和有效磷含量有降低趋势;全生物降解地膜处理成本明显高于常规不覆膜对照。总体而言,全生物降解地膜在太湖地区常规水稻生产中并不适用,但考虑到其优秀的除草效果与环境友好特征,建议未来在有机稻种植过程中进行适当应用。
In order to understand the application effect of biodegradable mulch film in rice fields in Taihu Lake area,this study set up three treatments,and systematically compared the tiller number,plant height,yield,cost of rice and soil nutrient index in each treatment.The results showed that the treatment with biodegradable mulch film increased the ineffective tiller number of rice,leading to an increase in panicle number and a decrease in seed setting rate.Compared with the conventional non film covering control,the yield of rice under biodegradable mulch film PLA and biodegradable mulch film PBAT treatments reduced by 0.12%and 1.68%,respectively;the treatment with biodegradable mulch film significantly inhibited weeds in rice fields,with an average weed inhibition rate of 87.13%and 89.18%in biodegradable mulch film PLA and biodegradable mulch film PBAT treatments,respectively;under the conditions of biodegradable mulch film treatment,the contents of soil organic matter,total nitrogen,total phosphorus and available phosphorus showed a decreasing trend.The cost of biodegradable mulch film treatment was significantly higher than that of the conventional non film covering control.In general,the biodegradable mulch film is not suitable for conventional rice production in the Taihu Lake area.However,considering its excellent weeding effect and environmentally friendly characteristics,it is recommended that it can be properly applied in the process of organic rice planting in the future.
作者
邓金花
王杰
胡媛
马向荣
高翠霞
翟晶
施林林
DENG Jinhua;WANG Jie;HU Yuan;MA Xiangrong;GAO Cuixia;ZHAI Jin;SHI Linlin(Comprehensive Service Center of Agricultural Technology of Xiangcheng Districtin Suzhou City,Suzhou Jiangsu 215000;Modern Agriculture Development Center of Xiangcheng District in Suzhou City,Suzhou Jiangsu 215000;Wangting Rural Work Bureau of Xiangcheng District in Suzhou City,Suzhou Jiangsu 215000;Suzhou Academy of Agricultural Sciences,Suzhou Jiangsu 215155;Shanghai Vocational College of Agriculture and Forestry,Shanghai 201699)
出处
《现代农业科技》
2024年第8期1-5,共5页
Modern Agricultural Science and Technology
基金
苏州市农业科技创新项目(SNG2021015)。
关键词
全生物降解地膜
水稻
土壤理化性质
成本
太湖地区
biodegradable mulch film
rice
soil physical and chemical property
cost
Taihu Lake area
