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ABT(生根粉、增产灵)是一种广谱高效、复合型植物生根促进剂和生长调节剂。目前生产的制剂型有6种,即ABT1、2、3号(生根粉)和4、5、6号(增产灵)。我所在1985年苜蓿插条时施用2号生根粉,它能促发早生根,提高成活率。1988年至1990年又对紫花苜蓿施用了ABT4号,目的在于对其施用方法、最佳浓度范围和用液量进行试验,并对其增产机理进行了测定和探讨。
ABT (rooting powder, Zeng Ling) is a broad-spectrum and efficient, complex plant rooting agent and growth regulator. The current production of formulations of six kinds, namely ABT1,2,3 (rooting powder) and 4,5,6 (Zenith). In 1985, we used alfalfa cuttings rooting powder 2, it can promote early root, improve survival rate. ABT4 was applied to alfalfa from 1988 to 1990 in order to test its application method, the optimum concentration range and the amount of liquid used, and its yield-increasing mechanism was measured and discussed.