摘要
为了探索棕榈纤维作为植生袋基质的可行性。采用土壤理化性质分析研究方法,对棕榈和椰糠的理化性质及矿质元素含量进行了测试和分析,并对棕榈生长障碍因素进行了分析和调节。棕榈的总孔隙度为74.47%,持水能力达到294.02%,均处于优良无土栽培基质的适用范围;气水比和椰糠相同,稍偏低,可以通过调节基质的粒度配比进行调整;棕榈的p H值为8.46,偏高,可通过等体积加入0.015 mol/L的稀硫酸进行调节;棕榈的电导率偏高,通过淋洗方式可以将棕榈电导率降低到1.08 ms/cm,棕榈的保水性和酸碱缓冲性与椰糠相似;棕榈保肥性较弱,但本身肥力要优于椰糠,矿质元素含量和椰糠相似。棕榈经过适当的调节,可以作为有机栽培基质。
The study aims to explore the feasibility of palm fiber as a culture substrate for grow bags. The physicochemical properties and the content of mineral elements of palm fiber and coconut tree branny were determined and analyzed by using soil physical and chemical property analysis method, in addition, the palmfiber substrate was adjusted according to its plant growth barrier factors. The total porosity of palm fiber was74.47%, and the water holding capacity of palm fiber was 294.02%, indicating that both factors were withinexcellent soilless cultivation substrate scope. Gas-water ratio of palm fiber was the same as that of coconut treebranny, both of them were slightly low, gas-water ratio could be adjusted by adjusting the particle size ratio ofthe substrates. The p H value of palm fiber was 8.46, which was too high for plant growth, however it could beadjusted by adding equal volume of 0.015 mol/L dilute sulphuric acid. Electronic conductivity value of palmfiber was high, it could be decreased to 1.08 ms/cm by drip washing, palm fiber and coconut tree branny hadsimilar water retention and acetic-alkali buffering capacity, the nutrient retention property of palm fiber wasweaker, but its own fertility was better than that of coconut tree branny, the content of mineral elements of palmfiber was similar as that of coconut tree branny. If palm fiber was properly adjusted, it could be used as anorganic cultivation substrate.
出处
《中国农学通报》
2016年第12期71-76,共6页
Chinese Agricultural Science Bulletin
基金
国家军工核设施退役及放射性废物治理科研重点项目(14zg6103)
关键词
棕榈
椰糠
栽培基质
理化性质
palm fibert
coconut tree branny
cultivation substrate
physiochemical properties
