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在马铃薯块茎形成期如何进行田间管理?

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以促为主,促上带下。在壮苗的基础上,继续抓紧中耕培土,既要使土壤疏松,又要加厚陪土层,消灭杂草。再根据生长情况灌溉追肥。

主要措施:现蕾时匍匐茎接近地面生长,此时应浅锄7—10cm,陪厚土,追施较多的钾肥,以硫酸钾为最好。现蕾开花期可喷洒适量的矮壮素以防徒长, 或可喷100ppm的多效唑或50ppm—100ppm的壮丰安,每亩需 50Kg水溶液。应及时摘除,集中养分供给块茎生长。

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