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以夏蜡梅、美国蜡梅一年生苗为试验对象,在总施氮量相同的条件下,设4个施肥配比处理,研究不同施肥种类、施肥配比对夏蜡梅、美国蜡梅容器苗生长的影响。结果表明,各施肥处理间差异显著。与传统水溶性施肥相比,施用缓释肥可显著提高全株的磷、钾养分含量,促进夏蜡梅、美国蜡梅幼苗对磷、钾养分的吸收,实现苗木养分的平衡;相同施肥方式及施肥配比下美国蜡梅的形态指标及氮磷钾含量均高于夏蜡梅;且当氮磷钾配比为14-14-14、施氮量为1000 mg·株~(-1)时,夏蜡梅和美国蜡梅苗木生长效果均较好,苗高分别为23.50和30.40 cm,地径分别4.03和3.19 mm;总生物量分别为0.92和1.10 g·株~(-1);质量指数分别达到0.0927和0.0847;氮磷钾含量较高,夏蜡梅为23.38、4.39和28.23 mg·株~(-1);美国蜡梅为23.38、4.37和30.20 mg·株~(-1)。
Taking the annual seedlings of Chimonanthus praecox and Chimonanthus praecox, the annual seedlings of Chimonanthus praecox were used as experimental subjects. Four fertilizer treatments were set up under the same total nitrogen application rate to study the effects of different fertilization types and fertilization ratios The impact of growth. The results showed that there was significant difference among all fertilization treatments. Compared with the traditional water-soluble fertilization, the application of slow-release fertilizer can significantly increase the phosphorus and potassium content of the whole plant, and promote the absorption of phosphorus and potassium nutrients in the seedling of Chimona chinensis and Chimonanthus praecox and achieve the balance of nutrients in seedlings. And the ratio of nitrogen, phosphorus and potassium of C. chinensis were higher than that of S. chinensis under the proportion of fertilization; and when the ratio of NPK was 14-14-14 and the amount of nitrogen was 1000 mg · plant -1, , The seedling height of C. chinensis and A. chinensis seedlings were all good, the seedling height was 23.50 and 30.40 cm respectively, and the soil diameters were 4.03 and 3.19 mm respectively. The total biomass was 0.92 and 1.10 g · plant -1 respectively. The mass index reached 0.0927 and 0.0847, respectively. The contents of N, P and K were high, the contents of N, P and K were 23.38, 4.39 and 28.23 mg · plant -1, respectively, while that of P. chinensis was 23.38, 4.37 and 30.20 mg · plant -1. .