指数施肥技术在草坪培育中的应用

运用指数施肥技术对草坪成坪前培育进行了大田施肥应用试验 ,并与传统的施肥试验进行比较 ,以期找出草坪在出坪前培育阶段最适宜的施肥技术 .结果表明 :指数施肥的草坪草生物量积累、草体内N的浓度及单株草的含N量分别比常规施肥量高出 32 %、35 %及 70 % ,均显著高于常规的施肥方法 .同时 ,指数施肥方式肥料用量较少 ,仅占常规施肥的 5 7% .指数施肥技术能够用较低的施肥量达到最高生长速率和最佳营养积累 ,是较理想的施肥技术 .

Application of exponential fertilization to the cultivation of lawn before transplanting

China. Field experiments with the exponential fertilization technique and some traditional fertilization techniques were done in the cultivation of turfgrass before transplanting.The results showed that the biomass accumulation,the N concentration and the N content per seedling in plants of turfgrass treated with the exponential fertilization was 32%,35% and 70% higher than those treated with the traditional methods respectively.The amount of fertilizer used in the exponential experiment was only 57% of that used in the traditional way.The conclusion is that the plants of turfgrass treated with exponential fertilization can reach the highest growth rate and the optimum nutrition status with less fertilizer.