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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (22): 59-63.doi: 10.11924/j.issn.1000-6850.2014-0378

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

微晶化磷矿粉对杨树生长及土壤不同形态磷含量影响

刘方春 徐振 马元民 邢尚军 杜振宇 马海林 马丙尧   

  • 收稿日期:2014-02-19 修回日期:2014-03-23 出版日期:2014-08-05 发布日期:2014-08-05
  • 基金资助:
    山东省优秀中青年科学家科研奖励基金“活化腐植酸对微晶化磷矿粉中磷素的释放及转化影响机理”(BS2012NY011)；山东省自主创新成果转化重大专项“磷钾矿微晶化活化加工技术产业化及在黄三角绿色果品生产中的应用与示范”(2013ZHAX1A0307)。

Effect of Ultra-fine Rock Phosphate Powder on the Poplar Growth and Different Forms of Soil Phosphorous Content

  • Received:2014-02-19 Revised:2014-03-23 Online:2014-08-05 Published:2014-08-05

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摘要： 为了研究磷矿粉经微晶化活化后的应用效果，探讨解磷细菌对微晶化磷矿粉的实际应用效应提升能力，以过磷酸钙作为对比肥料，利用盆栽试验研究了普通磷矿粉原料、微晶化磷矿粉及解磷细菌对杨树生长、磷吸收和土壤磷有效性的影响。结果表明，与普通磷矿粉相比，微晶化磷矿粉显著促进了杨树的苗高、地径和生物量积累，杨树地上部磷的含量和总吸收量分别增加8.96%和22.85%。与过磷酸钙处理相比，微晶化磷矿粉的处理杨树的生长及生物量无显著性差异，但杨树地上部磷的含量和总吸收量分别减少10.05%和11.97%。微晶化磷矿粉中加入解磷细菌，土壤中的细菌、放线菌和微生物总量分别增加41.89%、28.57%和41.53%，真菌数量减少31.19%，但对杨树生长、磷素吸收和土壤磷素的有效性影响较小。微晶化磷矿粉处理与普通磷矿粉处理相比，土壤中酸溶性磷和有效磷含量分别增加53.27%和45.35%。与过磷酸钙处理相比，酸溶性磷和有效磷含量分别增加15.68%和13.60%。磷矿粉原料处理的土壤全磷含量最高，各处理水溶性磷含量差异不显著。以上研究表明，磷矿粉经微晶化作用后显著提高了杨树的生长，促进了磷素的吸收利用，有利于土壤长期保持供磷能力，但解磷细菌的加入对杨树生长和土壤供磷能力影响较小。

关键词: 城市森林, 城市森林, 斑块, 温湿度

Abstract: In order to investigate the effect of ultra-fine on phosphate powder application, as well as the phosphate solubilizing bacteria on ultra-fine phosphate powder, a pot experiment was conducted to investigate the poplar growth, phosphorous uptake and soil phosphorous content as affected by ultra-fine rock phosphate powder, phosphate powder, calcium superphosphate and dissolved phosphate microbe. Results showed that compared with rock phosphate powder, ultra-fine rock phosphate powder improved the poplar seedling height, diameter and biomass significantly, and phosphorous content and phosphorous uptake was increased by 8.96% and 22.85%, respectively. There was no significant difference of poplar growth and biomass between calcium superphosphate and ultra-fine rock phosphate powder. However, compared with calcium superphosphate, ultra-fine rock phosphate powder decreased poplar phosphorous content and phosphorous uptake by 10.05% and 11.97%, respectively. Ultra-fine rock phosphate powder co-applied with dissolved phosphate microbe increased bacteria, actinomycetes amount and the total microorganism amount by 41.89%, 28.57% and 41.53%. However fungus amount was significantly decreased by 31.19%. Ultra-fine rock phosphate powder co-applied with dissolved phosphate microbe had little effect on poplar growth, phosphorous uptake and phosphorous content in soil. Compared with phosphate power, ultra-fine rock phosphate powder increased acid-soluble phosphorous and available phosphorous by 53.27% and 45.35%. Acid-soluble phosphorous and available phosphorous was increased by 15.68% and 13.60% in ultra-fine rock phosphate powder than that in calcium superphosphate. Total phosphorous was highest in phosphate power, but no significant different was found of water-soluble phosphorous in all the treatments. In short, ultra-fine rock phosphate powder improved the poplar growth, increased phosphorous uptake and utilize, which was benefit the long-term supply of phosphorous in soil. However, Ultra-fine rock phosphate powder co-applied with dissolved phosphate microbe had no effect on phosphorous supply ability in soil.