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通过不同浓度的多效唑、矮壮素在绿篱植物大叶黄杨上的矮化效果试验及效果比较,探索化学修剪中的最佳药剂品种、最佳浓度、药害浓度,为绿篱植物的化学修剪提供参考。试验表明:多效唑比矮壮素矮化效果明显,且观赏性、安全性更好;多效唑在单一大叶黄杨绿篱的化学修剪中,适宜浓度范围是0.2‰～1.0‰,最佳浓度1.0‰,用药量500ml/m2,喷施3次,药害浓度为1.5‰;矮壮素的适宜浓度范围是1‰～2.4‰,最佳浓度2.4‰,用药量500ml/m2,喷施3次,药害浓度为3.6‰。
Through different concentrations of paclobutrazol and dwarf cotyledon in dwarfing effect on hedgerows Euonymus japonicus, to explore the best chemical species in chemical pruning, the best concentration, the concentration of phytotoxicity, for the chemical hedge hilt plant pruning reference. The results showed that the effects of paclobutrazol dwarfing with chlormequat were obvious, and ornamental and safe were better. The optimum concentration of paclobutrazol was 0.2 ‰ ~ 1.0 ‰ and the optimum concentration was 1.0 ‰ in the chemical pruning of single Euonymus japonicus hedgerow. The optimum concentration of CCC was 1 ‰ ~ 2.4 ‰, the optimal concentration was 2.4 ‰, the dosage was 500ml / m2, spraying 3 times, the dosage of 500ml / m2, spraying 3 times, Harm concentration of 3.6 ‰.