摘要
在大田条件下,以强筋小麦品种西农979和弱筋品种郑麦004为材料,研究了氮肥3种用量(120、225、330kg/hm2)对小麦群体动态、灌浆持性及产量的影响。结果表明,2个小麦品种各生育期的群体总茎数都表现为330kg/hm2>225kg/hm2>120kg/hm2,且330kg/hm2处理与120kg/hm2处理间存在显著差异(P<0.05)。成穗率则表现为225kg/hm2>120kg/hm2>330kg/hm2,且225kg/hm2与330kg/hm2处理间存在显著差异(P<0.05)。籽粒干物质积累随灌浆进程推进呈增加的趋势。在不同施氮量下,西农979灌浆后期穗粒质量表现为120kg/hm2>330kg/hm2>225kg/hm2,而郑麦004灌浆后期穗粒质量则表现为120kg/hm2>225kg/hm2>330kg/hm2。西农979和郑麦004的产量均表现为330kg/hm2>225kg/hm2>120kg/hm2,且330kg/hm2处理与120kg/hm2处理间存在显著差异。
The effect of 3 nitrogen application amounts （120,225 and 330 kg/ha） on the population development,grain filling properties and yield of strong-gluten variety Xinong 979 and weak-gluten variety Zhengmai 004 was studied under field conditions.The results indicated that the total stem number of the two varieties all showed the trend：330 kg/ha＞225 kg/ha＞120 kg/ha at different growth stage,and the difference was significant between treatment 120 kg/ha ans 330 kg/ha（P＜0.05）.The spike rate was 225 kg/ha＞120 kg/ha＞330 kg/ha,and the difference between 225 kg/ha and 330 kg/ha was significant （P＜0.05）.The grain dry weight increased withthe proceeding of time.Under different amounts of nitrogen application,the dry weight of grains showed 120 kg/ha＞330 kg/ha＞225 kg/ha for Xinong 979and 120 kg/ha＞225 kg/ha＞330 kg/ha for Zhengmai 004.The grain yield of Xinong 979 and Zhengmai 004 all showed as 330 kg/ha＞225 kg/ha＞120 kg/ha,and the difference between the two treatments of 330 kg/ha and 120 kg/ha was significant for each variety.
出处
《河南农业科学》
CSCD
北大核心
2013年第8期12-15,共4页
Journal of Henan Agricultural Sciences
基金
河南省小麦产业技术体系项目(Z2010-01-01)
关键词
小麦
施氮量
群体动态
灌浆特性
产量
wheat
nitrogen application amount
population development
grain filling properties
yield
