摘要
1988—1989年在铁卜加地区进行燕麦分期播种试验,根据两年22个播期的试验得到,燕麦各个播期的平均气温与出苗天数呈极显著的相关关系,1988年为 Y=81.22-9.51X,1989年为 Y=18.2287e^(1.0826/x);播种至成熟平均气温和天数的关系两年为 Y=273.668-16.373x。出苗的起点温度为0—4℃,开花和成熟均为10℃。1988年产草量、产籽量最高的是5月中旬播种的,1989年是4月下旬播种的。高寒牧区燕麦播种期以4月下旬到5月上旬为宜。
The experiment was carried out in Tiebujia Grassland ExperimentalStation from 1988 to 1989.According to the results of sowing oats by install-ments from 22 stages in two years,significant correlations occured betweenthe average temprature and the number of seeding days in each seedingstage.Two equations were U_(1988)=81.22-9.51x and Y_(1989)=18.228 7e^(?)respectively.The relationship between the average temperature and thenumber of seeding days from sowing to maturation was Y=273.668-16373xover a two-year period.The starting point of seeding temperature was 0—4℃ and that of both blooming and maturing was 10℃.The yields of grainand forage were the highest when oats were sowed in mid—may 1988 and inlate—April 1989.We suggest that the most suitable seeding time should befrom late—April to early—May for oats in alpine pastoal area.
出处
《青海畜牧兽医杂志》
1992年第1期11-13,共3页
Chinese Qinghai Journal of Animal and Veterinary Sciences
