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为了提高中林 - 46杨混农速生丰产林的生产能力 ,用中林 - 46杨根系浸提液处理主要农作物和常见田间杂草的种子进行发芽试验 ,结果表明 :中林 - 46杨的他感作用是存在的 ,其根浸提液对大豆种子的萌发没有影响 ,但对其幼苗的生长有极显著的促进作用 ;低浓度的浸提液 ( 0～ 5mg/ml)对花生生长的影响不明显 ,高浓度 ( 10～ 50mg/ml)时则有极显著的促进作用 ;浸提液浓度为 ( 0～ 10mg/ml)时 ,对小麦、玉米的生长有极显著的促进作用 ,浓度再高 ( >10mg/ml)则表现极显著的抑制作用 ;高浓度的浸提液对反枝苋、马唐、狗尾草、蟋蟀草、虎尾草有明显的抑制作用 ;中低浓度仅对反枝苋、蟋蟀草有明显的促进作用 ;其他草类仅在个别浓度受到促进。
In order to improve the productivity of fast-growing and high-yielding forest of Zhonglin-46, the seed germination tests of main crops and common weeds in Zhonglin-46 Yang root leaching solution were carried out. The results showed that Zhonglin-46 Yang The root extract had no effect on the germination of soybean seeds but had a significant promotion on its seedling growth. The effect of low concentration of extract (0 ~ 5 mg / ml) on the growth of peanut (0 ~ 10mg / ml) had a very significant effect on the growth of wheat and maize, and the concentration of High concentration (> 10mg / ml) showed extremely significant inhibition; High concentration of extract on the Amaranthus retroflexus, Crabgrass, Setaria viridis, Cricket grass significantly inhibited; , Cricket grass has a significant role in promoting; other grass species are only promoted in individual concentrations.