催芽、播种材料及施肥种类对魔芋产量的影响

Effects of Germination Hastening,Sowing Materials and the Kinds of Fertilizer on Amorphophallus Yield

１９９３～１９９４年在秦岭山区岚皋县６个试验点就魔芋催芽、播种材料及施肥种类对其产量的影响进行了研究，结果表明：在１３～２０℃下催芽１５天较未催芽者可提高产量５．９％～２２．２％；播种材料以球茎种微优于主芽块种，主芽块种微优于分株种；与传统施肥量（１５００ｋｇ／６６７ｍ２农家肥）相比，株施２．０ｋｇ农家肥＋０．２ｋｇ磷肥和株施１．０ｋｇ魔芋专用肥具有同等增产效果，增产幅度为５２．０％～６４．０％。

The effect of germination hastening,sowing materials and the kinds of fertilizer on exephant-foot yam yield was studied in 6 experimental sits of Qinling mountain region during 1993～1994. The results showed that the germination hastening in 13～20℃ for 15 days could yield 5.9%～22.2% higher than non-hastening and whole-tuber material used as seeds was best,and cutting-tubers with main bud was slightly better than cutting-tubers. Applying 2kg manure+0.2kg phosphorous fertilizer per stalk gave same yield as 1.0kg Amorphophallus specific fertilizer,but increased 52.0%～64.0% more yield than common amount of fertilizer,22.5t manure per ha.