摘要
为提高柚木轻基质容器苗质量,在椰糠中添加基肥作为育苗基质,研究缓释肥和有机肥对苗木生长的影响。结果表明,添加缓释肥和有机肥能显著提高苗木生长量、生物量和保存率;施用单一肥料时,缓释肥最佳施用量为2.0和4.0 kg/m^3,有机肥最佳施用量为2.0 kg/m^3;缓释肥和有机肥同时施用效果比单一施用更好,但增效不显著;从苗木养分库的构建考虑,柚木轻基质容器育苗的最佳配方为椰糠+3.0 kg/m^3缓释肥+3.0 kg/m^3有机肥。
In order to improve quality of Tectona grandis seedlings in light substract containers, effects of slow-release fertilizer and organic fertilizer combining with coconut residum on growth of T. grandis seedlings were studied. Results showed that using slow-release fertilizer and organic fertilizer could remarkably increase growth, biomass and preserving rate of seedlings. When applying single fertilizers, the optimal dosages of slow-release fertilizer and organic fertilizer were 2.0, 4.0 kg/m^3 and 2.0 kg/m^3, respectively. Slow-release fertilizer and organic fertilizer worked better together than alone,but the effect was not remarkable. Considering construction of nutrient reserves, the best formula was coconut residum + 3.0 kg/m^3 slow-release fertilizer + 3.0 kg/m^3 organic fertilizer.
作者
郝海坤
邓斌胜
曹艳云
黄志玲
马文志
谭长强
Hao Haikun;Deng Binsheng;CaoYanyun;Huang Zhiling;Ma Wenzhi;Tan Zhangqiang(Guangxi Forestry Research Institute,KeyLaboratoryof CentralSouth Fast-growing Timber Cultivationof National Forestryand Grassland Administration,Nanning,Guangxi 530002,China;Forestry Research Institute of Chongzuo,Chongzuo,Guangxi 532200,China)
出处
《广西林业科学》
2020年第1期130-134,共5页
Guangxi Forestry Science
基金
国家重点研发计划(2017YFD0601101-4)
广西林业科技项目(桂林科字[2013]第2号)。
关键词
缓释肥
有机肥
柚木
椰糠
slow-release fertilizer
organic fertilizer
Tectona grandis
coconut residum
