|
As the problem of water shortages worsening , increasing of the lawn area , will also be a substantial increase in water consumption , and how to improve the utilization of water resources in the turf , the rational use of water is worthy of further study . Turf quality and water relations research purposes , that is, under conditions of limited water resources , seek to obtain the best turf quality optimal moisture inputs to its investment in the amount of time allocated to find out the functional relationship between water and turf quality , in order to provide the basis for rational irrigation of turf . This paper studies the relationship between turf quality and soil moisture , turf quality water production function to get through this experience function . The experimental design was a single- factor randomized complete block design , the design of the level of 7 , 3 repeats , a total of 21 cells, each planted lawn . Soil moisture within each cell for controlling irrigation caps of 40% , 50% , 60% , 70% , 80% , 90% , 100% of field capacity . Various levels of random distribution . Per week on the lawn , to evaluate the quality of the management measures consistent . Evaluation of turf quality digital image evaluation methods , evaluation of the the lawn color of the cover so that the turf quality more quantitative . Can be drawn through the test , turf quality and soil moisture is closely related to lawn cover color increases with increasing moisture , reduce decreases . Soil moisture at 60 ? Below , lawn grass do not get enough moisture to reach turf quality turf requirements ; reach 60 ? Above turfgrass almost normal growth , the quality of their lawn just meet the pass requirements ; soil moisture reached 80 ? above , can achieve excellent turf quality , good growth of the lawn at this time , the floor with good effect ; However, when soil moisture reached 90 ? above the turf quality is almost no longer with increasing moisture increases . Come through the test during the trial experience in turf quality water production function .
|