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天津地区盘青苗技术试验研宄及生产实践结果表明:①盘育苗床土调酸可显著提高秧苗素质,并能有效抑制立枯病发生,是一项关键性技术措施。②天津地区4月上中旬,播种育苗床土PH值调整到6左右,即可培育较为理想壮苗.③采用风化煤调酸剂酸,在原土中加12%～15%即可将床土PH值调整到6～6.5左右。
The results show that: (1) Soil acidizing can increase seedling quality remarkably and inhibit the occurrence of blight effectively, which is a key technical measure. ② In the middle of April in Tianjin, the PH value of seeding nursery bed soil is adjusted to about 6, which can cultivate the ideal seedlings.③Use weathered coal acid agent acid, add 12% ~ 15% in the original soil to bed soil PH value adjusted to 6 ~ 6.5 or so.