不同基质对盆栽杜鹃花生长的影响

Effects of Different Culture Substrates on Growth of Potted Rhododendron pulchrum

为废弃物在杜鹃花栽培基质中的循环利用提供技术依据,对降低生产成本和废弃物资源化循环利用方面有重大意义。用有机基质枯枝落叶发酵产品、草炭、松树皮、椰糠和无机基质珍珠岩、黄沙、原土等材料配成9种栽培基质,测定在不同配比栽培基质中杜鹃花的生长指标(株高、冠幅、分枝数、叶面积、叶绿素),并进行方差分析。结果表明,A_3、A_2基质株高较好,冠幅、分枝数最优,株型丰满,叶绿素含量高,叶面积大,植株生长势健壮,整体生长指标优良。综合各项指标分析,草炭:椰糠:枯枝落叶:珍珠岩=6:3:3:1和草炭:枯枝落叶:黄沙=2:2:1配比的栽培基质较适合于盆栽杜鹃花的生长。

The study aims to provide a technical basis for recycling use of waste in culture substrate ofRhododendron pulchrum, which has great significance of reducing the production cost and the recycling use ofthe waste. Using the fermentation products of organic litter, peat moss, pine bark, coconut chaff and inorganicsubstrate perlite, yellow sand and natural soil and other mediums to make nine kinds of culture substrates, wemeasured the growth indexes（plant height, plant spread, the number of braches, leaf area, chlorophyll） of R.pulchrum which were planted in different kinds of culture substrates, and analyzed the variance. The resultsshowed that： the plants grew in culture substrate A3 and A2 had better plant height, the best plant spread andnumber of branches, the outline of plant was good, the content of chlorophyll was high, the leaf area was big,the tendency of growth was robust, the whole growth index was superior. Based on the comprehensive analysisof each index, the culture substrate made of six parts of peat and three parts of coconut chaff and three parts oflitter and one part of perlite and the culture substrate made of two parts of peat and two parts of litter and onepart of yellow sand were suitable for the growth of R. pulchrum.