不同栽培方式对直播酸枣种苗生长指标的影响

Effects of Different Cultivation Modes on Seedling Growth Indexes of Sour Jujube Using Direct Seeding

为确定庆阳市酸枣育苗最佳播种模式,以当地野生酸枣为材料,研究不同栽培方式对直播酸枣种苗生长指标的影响,结果表明,宽窄行覆膜处理出苗最整齐,出苗率最高,可达87.23%;植株长势最强,主茎基粗达7.65 mm,极显著高于其他2个处理。打顶处理主茎基部最粗,达8.02 mm,但与其他2个处理差异不显著。综合出苗率、种苗各生长指标,庆阳市酸枣最适播种方式为宽窄行覆膜,种苗无需打顶处理。

The effects of different cultivation modes on seedling growth indexes of wild jujube direct seeded in Qingyang City were studied with germplasm resources of wild sour jujube in Qingyang City,to determine the best seeding mode for local jujube seedling.Results showed that the wide and narrow film mulching treatment had the most orderly seedling emergence,the highest seedling emergence rate(87.23%),the strongest plant growth and the main stem base diameter of 7.65 mm,which were significantly higher than that of the other two treatments.The base of main stem was the thickest in the topping treatment(8.02 mm)but no significant difference was detected when compared with that of the other two treatments.According to the emergence rate and seedling growth indexes,the best seeding mode for sour jujube seeding in open fields of Qingyang was wide and narrow film mulching,and seedlings did not need to be treated with topping.