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2009年在北京市通州区宋庄镇双埠头村和平疃村2个地块进行了日光温室和露地西蓝花氮磷钾肥料量级田间试验。获得了一批有价值的试验数据,摸索出了相关高产高效施肥规律,其中双埠头温室试验点氮肥肥料效应函数y=-0.1528x2+9.8394x+1147.7,R2=0.9649,最高施肥量x=32.20kg/667m2,最佳施肥量x=29.00kg/667m2;平疃露地试验点氮肥肥料效应函数方程式为y=-0.3093x2+16.3440x+1544.2,R2=0.9428,最高施肥量x=26.42kg/667m2,最佳施肥量x=23.80kg/667m2。总结得出通州区种植西蓝花667m2施用有机肥500.00kg,配合纯氮20.00kg、五氧化二磷8.00kg、氧化钾13.00kg最为科学的初步试验结果,而当地西蓝花生产施肥结构与试验结果相比存在较大差距,施肥不足和过量施肥现象仍存在普遍,亟待调整。
2009 in Beijing Tongzhou District Songzhuang Town Shuangbu Tau Village Peace Pok Village two plots were greenhouse and open-air blue sky nitrogen, phosphorus, potassium fertilizer field test. A series of valuable experimental data were obtained and the related fertilization rules of high yield and fertility were found out. Among them, the effect of nitrogen fertilizers y = -0.1528x2 + 9.8394x + 1147.7, R2 = 0.9649, the highest fertilization x = 32.20 kg / 667m2, and the optimum amount of fertilizer x = 29.00kg / 667m2. The formula for the effect of nitrogen fertilizers on the open field test points was y = -0.3093x2 + 16.3440x + 1544.2, R2 = 0.9428, and the highest fertilizer amount was 26.42kg / 667m2 , The best amount of fertilizer x = 23.80kg / 667m2. The conclusion is that the most scientific preliminary test result of 667m2 of west blue flower planted with 500.00kg organic fertilizer and 20.00kg of pure nitrogen, 8.00kg of phosphorus pentoxide and 13.00kg of potassium oxide in Tongzhou District was concluded, and the fertilization structure and test The results compared to the existence of a large gap, inadequate fertilization and excessive fertilization are still widespread, urgent need to be adjusted.