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机构地区:[1]苏州大学,江苏苏州215123 [2]北京林业大学,北京100083
出 处:《华北农学报》2010年第B12期204-207,共4页Acta Agriculturae Boreali-Sinica
基 金:苏州大学青年教师自然科学基金项目(Q3138925);国家林业局"948"引进创新项目(2005-4-C01);科技部农业科技成果转化资金项目(04EFN217100389)
摘 要:为降低盆花生产成本和提高水肥利用率,实现盆花生产的精准控制。采用盆栽试验,利用二次通用旋转组合设计的方法研究浇水频率和施肥量对一品红盆花品质的影响。结果表明:施肥量对一品红盆花品质的影响大于浇水频率。通过方程拟合和模拟寻优,得到以2份玉米秆∶1份花生壳∶1份珍珠岩的基质配方栽培一品红盆花的最佳水、肥供应模式为基质含水量为55.39%-66.22%进行浇水,施肥量为738.45-822.38 mg盆/。In order to reduce the production cost and improve the utilization rate of water and fertilizer,and to realize the precise control of potted flowers,the effect of different watering frequency and fertilizer amount on the biomass,plant height,crown diameter,flower number and days of blooming of potted Euphorbia pulcherrima was studied by pot culture and quadratic general rotary design.The results indicated that the effect of fertilizer amount on the quality of potted E.pulcherrima was more significant than than that of watering frequency.The optimal matching control methods of water and fertilizer for potted E.pulcherrima in growing medium V(corn stalk)∶ V(peanut hull)∶ V(perlite)2∶ 1∶ 1 were concluded by equation fitting and simulating optimization.The optimal index of watering frequency was watering when the water content of medium was 55.39%-66.22% while the optimal index of fertilizer amount was 738.45-822.38 mg per pot.
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