摘要
本试验旨在通过研究不同施肥方式对青贮玉米生产性能及经济价值的影响,明确该试验地区青贮玉米生产的最佳施肥方式。采用随机区组设计,设置Ⅰ~Ⅳ不同配方肥料组及对照组,对青贮玉米产量、品质和经济效益进行综合评估分析。结果表明:施肥方式采用牛粪肥500 kg+尿素25 kg组和专用肥50 kg+尿素25 kg组鲜重分别为5123.7 kg/亩和5122.8 kg/亩,干重为991.5 kg/亩和940.6 kg/亩,GI为40.32 MJ/d和40.43 MJ/d,经济收益为551.7元/亩和481.9元/亩,其干物质产量分别达到940.6 kg/亩和991.5 kg/亩,与对照组相比玉米产量分别提高25.5%和32.3%(P<0.05),GI提高9.09%和9.39%(P<0.01),经济效益增加551.7元/亩和481.9元/亩。综上,牛粪肥500 kg+尿素25 kg和专用肥50kg+尿素25 kg施肥方式利于该地区青贮玉米生产。
In order to study the evalation of different fertilization methods on the production performance and economic value of silage corn,and to determine the best fertilization method for silage corn production in the experimental area,this experiment adopts the randomized block design,and set up I^IV groups of different formula fertilizers and control group to comprehensively evaluate and analyze the yield,quality and economic benefit of silage corn.The results showed that the fresh weight was 5123.7 kg/mu and 5122.8 kg/mu,dry weight was 991.5 kg/mu and 940.6 kg/mu,comprehensive feeding quality was 40.32 MJ/d and 40.43 MJ/d,economic benefits was 551.7 yuan/mu and 481.9 yuan/mu,dry matter output was 940.6 kg/mu and 991.5 kg/mu,respectively of 500 kg cow manure+25 kg urea and 50 kg special fertilizer+25 kg urea groups.Compared with the control group,the yield of maize was increased by 25.5%and 32.3%(P<0.05),the comprehensive feeding quality was increased by 9.09%and 9.39%(P<0.01),and economic benefits was increased by551.7 yuan/mu and 481.9 yuan/mu.To sum up,the best way to apply fertilizer was 500 kg of cow manure+25 kg of urea and 50 kg of special fertilizer+25 kg of urea.
作者
孙泰然
王云霄
SUN Tairan;WANG Yunxiao(The Center for Animal Disease Control and Prevention,Baoding,Hebei Province 071000,China)
出处
《中国饲料》
北大核心
2020年第15期26-28,共3页
China Feed
关键词
青贮玉米
施肥方式
生产性能
经济效益
silage corn
fertilization method
production performance
economic benefits
