水肥一体化在冬种马铃薯生产上的应用效果

摘要

针对雁山区冬种马铃薯存在着肥料投入与产出不协调的突出问题,进行水肥一体化试验示范。试验表明,滴灌＋常规施肥量减40%的处理比对照常规施肥增产30.38%,比滴灌＋常规100%施肥量的处理每667m2增产497kg,增产幅度为29.76%。实行水肥一体化对冬种马铃薯有很好的效果。%According to the prominent problems of the incoordination between fertilizer inputs and outputs in winter potato production in Yanshan District, demonstration trials of fertigation were conducted. The experiment results showed that yield of drip irrigation plus 40 % regular fertilization is 30.38 % higher than regular fertilization and 29.76 % higher than drip irrigation plus 100 % regular fertilization（yield increased 497kg）. Application of fertigation on winter potatoes received very good effect.