Effects Of Straw Addition In Football Pitch Root Zone On The Turf Quality

The football field lawn is the site for football development.It must be able to withstand the high strength trampling requirements.In many sports fields,sand floor bed is used to build a flat bed,but the ability of water conservation and fertilizer protection is weak,which leads to the difficulty of maintenance and management in the later period,and the quality of the flat bed is reduced.To solve this problem,organic amendments can be added to the rhizosphere.This study used wheat straw modified material as rhizosphere bed layer of pure shaping.In the 10cm range of pure sand bed,1%,1.5%,2%and 2.5%straw were added,and 1 pure sand control groups(no straw added)were used to study the effect of straw additive on the turf turf quality and sports quality.The experimental results show that:(1)After adding straw with a mass concentration ranging from 1.0%to 2.5%in the rhizosphere of pure sand flat bed.When the added straw mass concentration is greater than 1.5%,the turf quality and color of the lawn can be significantly improved;when the added straw mass concentration is only 1.0%,the turf quality and color of the lawn are not improved.When the added straw mass concentration is greater than 2.0%,the density of the lawn can be significantly increased.During the entire experimental period,the three measured peaks and the mass concentration of straw were 2.0%,and the treatment was 2.5%,followed by 2.5%.When the straw mass concentration is 2.0%,flat view quality is the best.(2)After adding straw with a mass concentration ranging from 1.0%to 2.5%in the rhizosphere layer of pure Shaping bed.The surface hardness,rebound rate and soil compactness of the bed can be significantly reduced,and the greater the amount of straw added,the lower the surface hardness,rebound rate and soil compaction of the bed.According to the optimum range of surface hardness,tihe sxurface hardness of the flat bed was best when the straw mass concentration was 2.0%and 2.5%.According to the best range of rebound rate,pure sand flat bed is the closest to the best range of rebound rate.(3)When the added straw mass concentration is greater than 2,0%,the sliding friction and rotational friction of the bed can be significantly improved;when the added straw mass concentration is 1.0%·1.5%,the grass can be laid for 17 weeks before Improve lawn friction and turning friction.During the whole experimental period,the straw mass concentration of 2.0%,the sliding friction coefficient and the rotational friction torque are the largest,indicating that the straw mass concentration of 2.0%of the treatment,the best bed friction.According to the best range of the sliding friction coefficient,it can be seen that the sliding friction of the treated bed with straw mass concentration of 2.0%and 2.5%is the best.According to the optimal range of the rotational friction torque,after addition of straw with straw mass concentration ranging from 1.0%to 2.5%,the rotational friction was basically within the optimal range.In summary,when the mass concentration of straw added was 2.0%,the view quality of the turf was the best;when the mass concentration of straw was relatively high(2.0%-2.5%),the playing quality of the turf was the best.