2024年7月18日 星期一 19:43:55

马铃薯增产七招

   第一招:去尾芽经试验证明,马铃薯的尾芽成株后,产量仅是顶芽或侧芽成株苗的1/3,为此在切种薯时应对尾芽弃置不用。 
  第二招:高垄栽培高垄栽培两边培土,能增加活土层,根茎部位土壤疏松,利于茎延伸,又能提高地温,满足早期根茎发育所需温度。 
  第三招:配方施肥马铃薯在整个生长发育期需要大量养分,必须配方施肥以满足作物生长发育对氮、磷、钾和微量元素的需求,特别是块茎膨大期,能大幅度提高产量。 
  第四招:去花蕾马铃薯可利用的部分是地下的块茎,孕蕾开花要消耗大量的养分,要想获得高产,必须见蕾就掐去,以节省养分促进块茎的生长。 
  第五招:少铲多直趟马铃薯能结块茎的肉质根在土壤里水平生长,往往由于探铲切断了肉质延伸根,人为造成减产,所以铲完头遍后只趟不铲,以趟土压草与手工拔除相结合防治草荒,能有效地提高产量。 
  第六招:补镁促产专家研究证明,在马铃薯的生长过程中,尤其是薯块膨大期,如镁肥充足,不仅产量高,而且淀粉积累多,品质好,因此在植株高45厘米时,用硫酸镁对水溶化后追施。 
  第七招:叶面喷肥在施足底肥的情况下,从展叶起,每10天叶面喷1次0.1%的硫酸镁、0.3%的磷酸二氢钾、1000倍的三十烷醇混合液,连喷3~5次,能显著提高产量。如能辅以晒种、每株只留一个壮芽掰取小苗补空保全苗等措施,产量还会进一步提高。 
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