不同时期施用沼渣追肥对花生农艺性状和产量的影响

Effects of Topdressing with Biogas Residue in Different Periods on Agronomic Characteristics and Yield of Peanut

为探索不同时期施用沼渣追肥对花生农艺性状和产量的影响,采用田间试验和室内分析相结合的方法,以不施追肥为空白对照和在5月28日施用225 kg/hm^(2)花生专用复合肥追肥为常规对照,设置在5月28日、6月18日和6月28日3个不同时期施用沼渣追肥的对比试验。结果表明:花生在新垦山地进行春种时,各处理的综合效果从强到弱的顺序是5月28日施用>常规对照(CK2)>6月18日施用>6月28日施用>空白对照(CK1)。在花生花期施用沼渣追肥时期越早,植株主茎高等15项指标性状表现越好。同时,沼渣作追肥可提高土壤有机质含量、促进农村可再生资源的循环利用。

In order to explore the effects of biogas residue topdressing at different stages on the agronomic traits and yield of peanut,the field comparative experiment was conducted in three different periods combined with laboratory analysis by taking no topdressing as the blank control(CK1)and 225 kg/hm^(2) of special compound fertilizer for topdressing as the routine control(CK2).Three periods were May 28,June 18,and June 28.Results showed that the comprehensive effect ranking of each treatment was:May 28>CK2>June 18>June 28>CK1.The biogas residue was applied at the flowering stage of peanut earlier,15 traits like main stem height performed better.At the same time,biogas residue as topdressing could improve soil organic matter content and promote the recycling of rural renewable resources.