先育335高产简便施肥技术研究  

Study on the Simple High-yield Fertilization Technique of Xianyu 335

作　　者：安景文[1] 华丽民[1] 刘艳[1] 解占军[1] 汪仁[1] 

机构地区：[1]辽宁省农业科学院环境资源与农村能源研究所,辽宁沈阳110161

出　　处：《安徽农业科学》2009年第35期17431-17433,共3页Journal of Anhui Agricultural Sciences

基　　金：科技部"十一五"科技支撑计划项目(2006BAD02A12;2008-BADA4B06)

摘　　要：[目的]为玉米品种先育335的推广种植提供技术支持。[方法]通过田间施肥试验研究了不同施氮量和不同施肥方法对先育335生长和产量的影响。[结果]各施肥处理的平均叶绿素含量均显著高于对照。对照的生物产量最低,为19 418.0 kg/hm2;处理6的生物产量最高,为27 747.5 kg/hm2。处理6中玉米吸收的N和K最多,低氮处理中玉米的吸磷量最高。施肥对先育335的穗行数影响最小,对行粒数和百粒重影响较大,处理6的行粒数最高,百粒重最重,分别为39.27个和43.67 g。施肥处理的玉米产量比对照高20%～42%。先育335的最佳施氮量为210 kg(纯N)/hm2。中氮处理的玉米籽粒增产8.65 kg/kg(纯养分),低氮处理的玉米籽粒增产6.12kg/kg(纯养分),高氮处理的玉米籽粒增产5.08 kg/kg(纯养分)。[结论]大量氮肥作底肥深施和后期追施少量氮肥的施肥方法简便易行。[ Objective ] The study aimed to supply technical support for popularizing and planting the maize cuhivar Xianyu335. [ Method ] The Effects of different nitrogen （N） application rates and fertilization methods on the growth and yield of Xianyu335 were studied through field fertilization experiment. [Result] The average chlorophyll contents in various fertilization treatments were significantly higher than that in CK. The biomass in CK was lowest, being 19 413.0 kg/hm^2 and that in Treatment 6 was highest, being 27 747.5 kg/hm^2. The uptake amounts of N and K in the maize plants in Treatment 6 were highest and that of P in the maize plants in low N treatments were highest. The effect of fertilization on the row number per ear of Xianyu335 was least and that on the grain number per row and 100-grain weight were greater. The grain number per row in Treatment 6 was highest, being 39.27; its 100-grain weight was heaviest, being 43.67 g. The maize yields in fertilization treatments were increased by 20% - 42% in comparison with that in CK. The optimum N application rate of Xianyu335 was 210 kg （pure N）/hm^2. The yield of maize grains was increased for 8.65 kg/kg （pure nutrient） in moderate N treatments, that was increased for 6.12 kg/kg （pure nutrient） in low N treatments and that was increased for 5.08 kg/kg （pure nutrient） in high N treatments. [ Conclusion] The fertilization method of deeply applying a large amount of N fertilizer as base fertilizer and dressing a little N fertilizer in later stage was simple.

关 键 词：玉米 先育335 简便施肥 

分 类 号：S147.2[农业科学—肥料学]