节点文献
容器规格和缓释肥用量对枳壳扦插育苗的影响
Effects of Container Size and Slow-Release Fertilizer Dosage on Cutting Propagation of Citrus aurantium L.
【摘要】 为筛选出对枳壳扦插育苗具有良好效应的容器规格和缓释肥用量,以6月龄的江枳壳秋季嫩枝为插穗,对其进行了A1(5 cm×8 cm)、A2(5 cm×12 cm)和A3(5 cm×16 cm)3种容器规格及B1(2.0 kg缓释肥/m3基质)、B2(2.5 kg缓释肥/m~3基质)和B3(3.0 kg缓释肥/m~3基质)3个用量处理,通过测定90 d后扦插苗的生根率、生根数、生根力指数、单株根长和叶片数比较了其效果优劣。结果表明:等量缓释肥施用下,容器大小对枳壳扦插苗的观测指标存在显著影响,小容器将限制扦插苗的正常生长,以A2(5 cm×12 cm)为最佳。同一容器大小中,扦插苗的观测指标随着施肥量的增加而提高,但提高幅度变小,以B2(2.5 kg缓释肥/m~3基质)最经济。因此,在枳壳扦插育苗生产中,宜采用A2(5 cm×12 cm)白色无纺布网袋作容器和每立方米基质施用2.5 kg缓释肥。
【Abstract】 To screen the container size and slow-release fertilizer dosage with the best promotion effect on the cutting propagation of Citrus aurantium L., the autumn twigs of 6-month-old were used as cuttings in this study. They were treated with three container sizes(5 cm width × length) including A1(8 cm), A2(12 cm) and A3(16 cm), and three slow-release fertilizer dosages(kg per m3 substrate) of B1(2.0 kg), and B2(2.5 kg) and B3(3.0 kg). Their rooting rate, rooting number, rooting force index, root length and leaf number per plant after 90 d were measured to compare their effects. The results showed that container size had significant effects on the observation indexes of cutting seedlings of trifoliate orange under the same amount of slow-release fertilizer application. Small container would limit the normal growth of cutting seedlings, and A2(5 cm × 12 cm) was the best. In the same container size, the observation index of cutting seedlings increased with the increase of fertilizer application rate, but the increase was smaller, and B2(2.5 kg slow-release fertilizer per m~3 substrate) was the most economical. Therefore, white non-woven mesh bag of A2(5 cm × 12 cm) should be used as container and 2.5 kg slow-release fertilizer per m~3 substrate should be applied in cutting seedling production of Citrus aurantium L.
【Key words】 Citrus aurantium L.; cutting; propagation; container size; slow-release fertilizer;
- 【文献出处】 绿色科技 ,Journal of Green Science and Technology , 编辑部邮箱 ,2022年17期
- 【分类号】S567.19
- 【下载频次】18