[Objective] The aim was to research effects of P fertilizer and lime on growth of Trrifolium repens, Chamaecrista rotundifolia and Macroptilium atropur- pureum, to provide references for cultivation of the three plant...[Objective] The aim was to research effects of P fertilizer and lime on growth of Trrifolium repens, Chamaecrista rotundifolia and Macroptilium atropur- pureum, to provide references for cultivation of the three plants. [Method] Pot experiments were conducted with Trrifolium repens, Charnaecrista rotundifolia and Macroptilium atropurpureum in 2010 in order to research effects of lime and P fer-tilizer mixture on growth of the plants in southern hilly acidic red soils. [Result] With lime amount fixed, application of P fertilizer would enhance plant height, total tiller number and dry matter. When P fertilizer was not applied, however, plant height of the three plants achieved the peak by lime at 1.4 g/kg which proved best for improvement of acidity of red soils. With P fertilizer at 200 mg/kg was applied, biomass of Trifolium repens and Macroptilium atropurpureum achieved the highest by lime at 2.1 g/kg, but total biomass of Chamaecrista rotundifolia was the highest by lime at 1.4 g/kg. [Conclusion] The research provides references for planting and production of Trifolium repens, Chamaecrista rotundifolia and Macroptilium atropur-pureum in southern hilly regions.展开更多
基金Supported by National Science & Technology Pillar Program(2012BAD05B05)Special Fund for Agro-scientific Research in the Public Interest(201303139)+1 种基金国家科技支撑计划"中低产田改良科技工程"项目(2012BAD05B05)农业部公益性行业科研专项经费项目(201303139)资助
文摘[Objective] The aim was to research effects of P fertilizer and lime on growth of Trrifolium repens, Chamaecrista rotundifolia and Macroptilium atropur- pureum, to provide references for cultivation of the three plants. [Method] Pot experiments were conducted with Trrifolium repens, Charnaecrista rotundifolia and Macroptilium atropurpureum in 2010 in order to research effects of lime and P fer-tilizer mixture on growth of the plants in southern hilly acidic red soils. [Result] With lime amount fixed, application of P fertilizer would enhance plant height, total tiller number and dry matter. When P fertilizer was not applied, however, plant height of the three plants achieved the peak by lime at 1.4 g/kg which proved best for improvement of acidity of red soils. With P fertilizer at 200 mg/kg was applied, biomass of Trifolium repens and Macroptilium atropurpureum achieved the highest by lime at 2.1 g/kg, but total biomass of Chamaecrista rotundifolia was the highest by lime at 1.4 g/kg. [Conclusion] The research provides references for planting and production of Trifolium repens, Chamaecrista rotundifolia and Macroptilium atropur-pureum in southern hilly regions.
