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花椰菜是广大群众喜爱的优质蔬菜,对肥料三要素氮磷钾,特别是氮钾需要量大。以农家有机肥为主的常规施肥方式很难满足其需肥量,土壤肥力消耗大,而产量却得不到提高。为此,我们开展了氮钾肥对花椰菜产量的影响的研究,以期获得节省肥料,增产增收的经济效益,为花椰菜合理地施用化肥提供科学依据。一、材料与方法供试土壤为河沙泥菜园土,壤质,pH6.4,有机质2.55％,全氮0.12％,全磷0.094％,全钾2.42％,碱解氮46.1ppm,速效磷31.8ppm,速效钾137.4ppm。
Cauliflower is the favorite vegetables of the masses, the three elements of fertilizer nitrogen, phosphorus and potassium, especially nitrogen and potassium needs. Conventional fertilizers dominated by farmer organic fertilizers are difficult to meet their need for fertilizer, soil fertility is high, and yield is not increased. To this end, we carried out nitrogen and potassium fertilizers on the yield of cauliflower research, in order to obtain the economic benefits of fertilizer savings, increase production and income, to provide a scientific basis for the rational use of fertilizers Cauliflower. I. Materials and Methods The soil tested was sandy soil with loamy soil, pH6.4, organic matter 2.55%, total nitrogen 0.12%, total phosphorus 0.094%, total potassium 2.42%, alkaline hydrolysis 46.1ppm, available phosphorus 31.8 ppm, available potassium 137.4 ppm.