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割草高度与次数会影响草皮质量与性能。割草机的操作与调节,刀片的锋利程度也会影响草皮的质量。被钝刀片碰伤毁损的叶尖会增加病菌感染的机会。本试验选易感染叶斑病的单种栽培的 Park 早熟抗叶斑病的混合栽培的 Baron-Glaele-Adelphi 早熟禾作试材。小区土壤系 Sharpsburg 粉砂粘壤土,每季每米~2施20克 N,灌溉防旱,除草剂除草。随机完全小区(2×2m)设计,4次重复,每次重复2个处理。处理用装
Mowing height and number of turf will affect the quality and performance. Lawn mower operation and regulation, blade sharpness will also affect the quality of turf. Bugs damaged by blunt blades can increase the chance of germs becoming infected. In this experiment, we selected the mixed cultivated Baron-Glaele-Adelphi precocious poplar cultivars which were susceptible to leaf spot disease. Community soil Sharpsburg silty clay loam, each season ~ 20 grams of fertilizer 2 N, irrigation drought, herbicide weeding. Random complete community (2 × 2m) design, 4 replicates, each with 2 replicates. Handling equipment