本特草球盘区土壤改良的研究

A Study on Soil Improvement for Bentgrass Greens

以树皮堆肥４０％＋发酵鸡粪１５％＋蟹皮粉１０％＋沸石粉３５％配制的土壤改良材料能明显地促进本特草的生长，合理地调整土壤的三相分布，改善土壤透水保水性，提高土壤对氨态氮的吸收容量。超缓效氮肥可促进本特草后期生长，与改良材料配合比例无互作效应。

This study was conducted, with creeping bentgrass as the testing material, to evaluate the effects of different mixing. percentages of.Pelletized pultry dung, bark compost,crab shells and zeolite, and the application of condensed urea polymer on the growth of turfgrass and on the physical as well as the chemical properties of the soil. It was shown that the combination of 40% bark compost + 15% poultry daing + 10% crab shells+35% zeolite resulted in promoted growth of the turfgrass significantly, and in the properly adjusted 3-phase distribution, the improved hydraulic conductivity and moisture retention, and the increased capacity for ammoniac nitrogen of the soil. The condensed urea polymer promoted the growth of bentgrass during the later stage.