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运用二次正交回归旋转组合设计进行田间试验，建立郁金块根产量的数学模型。对模型进行分析、模拟、优化并结合最优净产值栽培措施组合，筛选高产高效栽培技术方案为：播期６月１２～１６日，密度９８～１１０万株／１０４ｍ２，尿素３４０～５００ｋｇ／１０４ｍ２，过磷酸钙２０００～３０００ｋｇ／１０４ｍ２，氯化钾２４０～３６０ｋｇ／１０４ｍ２。在本试验中，栽培措施对产量的影响大小为密度＞播期＞施肥量。播期密度及密度与施肥量之间存在互作效应
The quadratic orthogonal rotation and rotation combination design was used in field experiments to establish the mathematical model of root yield of tulip. The program of analyzing, simulating, optimizing and combining with the best net value cultivation method was as follows: sowing date from June 12 to June 16, the density was from 98 to 1.1 million / 104m2, the urea was from 340 to 500kg / 104m2, Superphosphate 2000 ~ 3000kg / 104m2, potassium chloride 240 ~ 360kg / 104m2. In this experiment, the impact of cultivation measures on the yield size density> sowing date> fertilizer. There is an interaction effect between sowing date density and density and fertilizer amount