摘要
采用正交试验,设不同播期、不同密度和不同施氮量处理,研究不同栽培因子对华油杂9号产量的影响。结果表明,产量、单株一次有效分枝数、单株有效角果数等经济性状随着施氮量的增加而增加;随着密度的增加,一次有效分枝数、主花序有效角果数逐渐减少;适时早播有利于促进个体发育夺高产。通过本试验确定华油杂9号在恩施州种植的最佳播种期为9月18日、每公顷15万株、施氮量每公顷为262.5kg或10月8日播种、每公顷为12万株、施氮量每公顷为262.5 kg。
With the orthogonal deslgn,three factors（planting date, nitrogen supply and plant density）were investigated to research the efftcts of cultivation factors on yield of oil rape variety Hua-you-za No.9. The results indicated that as increase of nitrogen supply,the valid branches per plant,seed set pods per plants and other economic characteristics increased.Along with increase in plant density the ffist branch number and seed set pods of the main inflosescence decreased. Suitable early planting promoted plant growth and development,and gained high yield. This experiment also determind that the most combinations for growing Hua-you-za No.9 were planting on18/9,150000 plants·ha^-1 and 262.5kgN·ha^-1 and planting onl0/ 8,120000 plants·ha^-1 and 262,5kgN·ha^-1.
出处
《湖北农业科学》
北大核心
2006年第6期727-729,共3页
Hubei Agricultural Sciences
关键词
华油杂9号
密度
播期
施氮量
高产栽培
Hua-you-za No.9
density
planting date
amount of nitrogen application
high-yield cultivation
