摘要
大田试验结果表明,春播覆膜小花生鲁花12号的播期和密度产量效应显著,密度效应大于播期。因此,小花生要高产必须合理密植;当花生4月28日播种,密度为17.28万穴/hm2时,荚果产量最高,达4760.0kg/hm2;在4月28日以前,花生播期每提前5d,荚果产量平均减少203.9kg/hm2,在4月28日以后,播期每推迟5d,荚果产量平均减少260kg/hm2;播期与密度表现为正向交互效应,在4月10日～5月20日范围内,花生播期每推迟5d,其最适密度应增加5540穴/hm2。
Results from the field experiment indicated that both sowing date and plant density produced significant effect to the yield of small-pod peanut planted in spring and mulched with plastic film and the later was more remarkable than the former. Therefore, small-pod peanut should be given enough plant density to get higher yield. The maximum yield can reach as high as 4,760.0 kg/ha when the sowing date was on 28, April and the plant density was 172,800 holes/ha. The mean pod yield will be reduced 203.9kg/ha with every 5 days the peanut being sowed ahead before 28, April and will be reduced 260kg/ha with every 5 days the sowing date being put off after 28, April. Sowing date and plant density presented positive interaction and the optimum plant density should be increased 5,540 holes/ha with every 5 days the sowing date being put off from 10, April to 20,May.
出处
《花生学报》
2002年第4期30-32,36,共4页
Journal of Peanut Science
关键词
小花生
覆膜栽培
播期
密度
产量
small-pod peanut
film mulching cultivation
sowing date
plant density
pod yield
