The Study Of Extended The Green Period Of Manilagrass Lawn

This experiment uses four designs of repeat three completely randomized block arrangement to study the impact of lawn when it gets into different times with different pruning times, different cutting heights, different fertilizer, different water content and different concentrations of plant growth regulators in order to extend the green period of Manilagrass lawn in Ningbo.The test result indicated that, Manilagrass lawn autumn (before winter) the last trim should be arranged before early October, mowing the lawn after late October will shorten the lawn of the watch, still can shorten the lawn of the green period. After Manila grass lawn into beginning of winter withered and yellow carries on the4cm low trim, may cause the next year to turn green the time compared to not to prune the lawn to shift to an earlier time for a long time about53day, namely may lengthen the lawn green time about53days; it’s earlier than8cm ordinary mow the lawn about14days, namely can extend the lawn green stage about14days or so; And the lawn, smoothly artistic appreciation is greatly increased.10g/m2,20g/m2,30g/m2apply fertilizer processing to be able to enhance Manila grass lawn of ornamental quality around the withered and yellow, impact of10g/m2and20g/m2fertilizer treatment on the lawn of the green period is not big,30g/m2fertilizer treatment has the extension to the lawn green time, green period can be extended days13year-round.Water test was no significant difference between each treatment. Spray concentration of400mg/L MET in September, green period can be extended about10days.In order to make the Manilagrass lawn has a long green period and good landscape effect, take the following technical measures between the autumn to early spring:The last pruning of autumn should be scheduled in early October; when the lawn becomes yellow, it need for4cm low-pruning, compared to the8cm normal mowing, green period can be extended14days; The amount of fertilizer applied30g/m2in autumn(in early October), green period can be extended13days; Spray concentration of400mg/L MET in early September, green period can be extended about10days.