不同施氮量对甜糯玉米秸秆生物量的影响  

Effect of Different Nitrogen Application Rate on the Biomass of Sweet Waxy Corn Straw

作　　者：张雪彪[1] 闫建宾[1] 王瑞钢[1] 张沛敏 王俊花[1] 庞旭[1] 梁海英[1] ZHANG Xuebiao;YAN Jianbin;WANG Ruigang;ZHANG Peimin;WANG Junhua;PANG Xu;LIANG Haiying(Institute of Sorghum,Shanxi Academy of Agricultural Sciences,Jinzhong 030600,China)

机构地区：[1]山西省农业科学院高粱研究所,山西晋中030600

出　　处：《山西农业科学》2018年第9期1498-1501,共4页Journal of Shanxi Agricultural Sciences

摘　　要：采用田间小区试验,以甜782、晋单糯41、甜糯182为材料,研究了不同氮肥施用量对甜糯玉米秸秆生物量的调控作用。结果表明,在甜糯玉米生育后期,品种对甜糯玉米秸秆生物量的影响并不显著,而秸秆生物量随着施氮量增加呈抛物线变化;在秸秆收获期,563 kg/hm^2施氮量使甜糯玉米秸秆生物量较传统的375 kg/hm^2施氮量减少5.4%。经回归分析,甜糯玉米秸秆生物量的最佳施氮量为363 kg/hm^2。The effect of different nitrogen application rate on the biomass of sweet waxy corn straw was studied by using field plot experiment, with Tian 782, Jindannuo 41, Tiannuo 182 as test material. The results showed that the effect of variety on the biomass of sweet waxy corn staw was not significant in the late growth period of sweet waxy corn, while the biomass of straw was parabolic changed with the increase of nitrogen applicarion rate. In the straw harvest period, the amount of nitrogen applied to the 563 kg/hm^2 of sweet waxy corn straw decreased by 5.4% compared with the traditional 375 kg/hm^2. After regression analysis, the optimum nitrogen content of sweet waxy corn staw biomass was 363 kg/hm^2.

关 键 词：氮肥 甜糯玉米 品种 秸秆 生物量 

分 类 号：S513[农业科学—作物学]