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美国红枫,又名红花槭(Acerrubrum),原产于美国东北部,为我国近几年引进的最主要色叶品种之一。它以适应性广、抗逆性强、秋色丰富、观叶期长、生长迅速等优点成为城市园林景观、道路绿化、风景林营建的优秀色叶乔木景观树种。多次荣获国际园林博览会金奖,国内的需求量很大,市场供不应求。为了更好地进行美国红枫的容器苗生产,我们在幼苗期进行了不同肥料的处理,以比较对植株的影响,更好地用于实际生产。试验表明苗期使用尿素作为追肥为好,株高超过对照5.6%,侧根数超过对照20.7%,植株干重超过植株35.7%。容器苗幼苗生长中肥料使用不宜过早。
American red maple, also known as Acerrubrum, native to the northeastern United States, is one of the most important leaf color varieties imported in recent years in China. It has the advantages of wide adaptability, strong resistance, rich autumn foliage, long growing foliage and rapid growth. It has become an outstanding tree species of color shade tree for urban garden landscape, road greening and scenic forest construction. Won the International Garden Fair gold medal many times, the domestic demand is great, the market in short supply. In order to better carry out container seedling production of American maple, we conducted different fertilizer treatments at the seedling stage to compare the effects on the plants and make them better for actual production. The results showed that urea was the top dressing at the seedling stage. The plant height was 5.6% higher than that of the control and the number of lateral roots was 20.7%. The dry weight of the plant exceeded that of the plant by 35.7%. Container seedling growth in the use of fertilizer should not be too early.