稻田养鳖对稻田水体与土壤环境的影响  

Effects of turtle culture in paddy field on water and soil environment

作　　者：李丰 LI Feng(Shanghai Vocational College of Agriculture and Forestry,Shanghai 201699,China)

机构地区：[1]上海农林职业技术学院,上海201699

出　　处：《黑龙江水产》2021年第5期3-6,共4页Northern Chinese Fisheries

摘　　要：该研究探索了稻田养鳖后对于水体指标(NH_(4)^(+)、NO_(3)^(-)和PO_(4)^(-)浓度)与土壤指标(有机质、硝态N、氨态N、速效P、速效K和全N含量)的影响。结果显示,稻鳖共生模式(R-T)中稻田水体的NH_(4)^(+)、NO_(3)^(-)和PO_(4)^(-)浓度在水稻种植后期均高于常规种植稻田(R-M);稻鳖共生模式(R-T)中稻田土壤的各项指标都得到一定的提高,其中三项指标:全N、硝态N和氨态N含量相较于常规种植稻田(R-M)得到了显著(P<0.05)提升。在稻田中养殖鳖,能够有效提高土壤养分含量。This study explored the effects of rice turtle co-culture on various indexes of water(concentrations of NH_(4)^(+),NO_(3)^(-) and PO_(4)^(-))and soil(contents of nitrate N,ammonia N,available P,available K,total N and organic matter).The results showed that the various indexes of water concentrations of the paddy field in rice-turtle co-culture(R-T)were higher than in mono-culture(R-M)at later stage of rice growth;The various indexes of soil in paddy soil were improved in rice-turtle co-culture(R-T)the contents of total N,nitrate N and ammonia N were significantly increased(P<0.05).Turtle culture in paddy field can improve soil nutrient content effectively.

关 键 词：稻鳖共作模式 土壤养分含量 水体养分含量 

分 类 号：S912[农业科学—水产科学]