夏芋丰产栽培技术研究

研究了３种种植密度、２种播种时期和２种地膜覆盖方式对早熟芋生产发育和夏收产量的影响。地膜覆盖与否是影响芋生长和丰产的关键因素，地膜覆盖比露比栽培增产９０．０９％，栽植密度是影响夏收单产的重要因素；播时期对生长发育和产量无影响。从综合因素考虑，要使夏芋丰产，应适时播种，及早覆盖地膜，密度为２３００株／６６７ｍ＾２。

Study on the High Yield Culture Technique of Taro in Summer

It is studied that 3 kinds ofdensity, 2 sowing times and 2 kinds of plasticsheet-covered cultivation affect the growth and yield of early variety of taro. The growth and yield of taro is mostly influenced by the plasticsheet-covered compared with theoutdoor culture, The yield is increased by90. 09%. The culture density also influence the yield; The sowing time has no effect to the yield and growth, But optimum sowing time, covering the plastic-sheet early and 2 300plant/667 m2 Should be executed in order to earn high yield of taro.