文献类型：期刊文献

中文题名：配方施肥改善米老排容器苗生长指标

英文题名：Growth Traits of Mytilaria laosensis Container Seedlings Improved by Formula Fertilization

作者：黎少玮[1,2] 尹光天[1] 杨锦昌[1] 李荣生[1] 邹文涛[1] 余纽[1] 王志海[1]

第一作者：黎少玮

机构：[1]中国林业科学研究院热带林业研究所,广东广州510520;[2]广东省岭南综合勘察设计院,广东广州510663

年份：2020

卷号：41

期号：2

起止页码：230-236

中文期刊名：热带作物学报

外文期刊名：Chinese Journal of Tropical Crops

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：广东省林业科技创新项目(No.2016KJCX004)。

语种：中文

中文关键词：米老排;容器苗;正交试验;配方施肥;生长指标

外文关键词：Mytilaria laosensis;container seedling;orthogonal experiment design;formula fertilization;growth indices

分类号：S723.7

摘要：为筛选米老排容器苗最佳施肥组合,采用L16(45)正交试验设计和等量施肥法,研究N、P和K肥3因素对米老排容器苗苗高、地径、生物量以及养分利用的影响。研究结果表明:不同施肥组合处理对米老排容器苗苗高、地径、总生物量等指标均有着显著影响,配方施肥对米老排容器苗的生长发育具有明显促进作用;3种肥料对米老排容器苗苗高生长的影响效应均是N>P>K,其施肥最优组合是N1P3K2(每株施N、P和K分别为50、50、60 mg),对地径生长和生物量积累影响效应均为N>K>P,施肥最优组合分别是N1P4K2(每株施N、P和K分别为50、60、60 mg)和N1P4K1(每株施N、P和K分别为50、60、45 mg);合理的配方施肥能有效提高米老排苗木的养分利用效率。综合苗木各指标看,米老排容器苗最优施肥配方是:N1P4K1(每株施N、P和K分别为50、60、45 mg)。
In order to screen out the optimal fertilizer combination of nitrogen,phosphorus and potassium for Mytilaria laosensis container seedling,an orthogonal experiment design with five factors and four levels was established on height,ground diameter,biomass and nutrient utilization.Different fertilizer combination had significant effects on the height,ground diameter,total biomass of container seedlings,indicating the promoting effects of fertilization formula on the growth of container seedlings.The effects of N,P,K on the height of container seedlings were N>P>K with the optimal combination of N1P3K2(50 mg N+50 mg P+60 mg K per plant)while the effects of those on the ground diameter growth and biomass accumulation were N>K>P,and the best combination for the ground diameter growth and biomass accumulation was N1P4K2(50 mg N+60 mg P+60 mg K per plant)and N1P4K1(50 mg N+60 mg P+45 mg K per plant)correspondingly.Rational formula fertilization effectively improved the efficiency of nutrient exploitation of the seedlings.Conclusively,the optimal fertilizer formula for the seedlings growth of M.laosensis was N1P4K1(50 mg N+60 mg P+45 mg K per plant)based on the comprehensive growth indices.