摘要
研究了灯笼红萝卜鲜重、干重生长动态及氮、磷、钾、硫的吸收规律。结果表明：出苗后３６～８０ｄ是植株鲜重、干重增长的主要时期；肉质根产量在６８６３３ｋｇ／ｈｍ２水平下，每生产１０００ｋｇ肉质根植株需吸收Ｎ２．４３ｋｇ，Ｐ２Ｏ５１．６９ｋｇ，Ｋ２Ｏ２．６６ｋｇ，Ｓ０．７４ｋｇ（（比例为１．００∶０．７０∶１．０９∶０．３０）；植株吸收养分的主要时期在出苗后３６～８０ｄ；植株吸收的各种养分收获时主要贮存在肉质根内。
ThegrowthtrendoffreshanddryweightofdenglonghongradishanditsuptakeruleofN,P,KandSwerestudiedinthispaper.Theresultsshowedthatthemaingrowthstageoffreshanddryweightwasat3680daysofseedlingage.Itneeded2.43kgofN,1.69kgofP2O5,2.66kgofK2Oand0.74kgofS(attherateof1.000.701.090.30)toproduce1000kgofsucculenttaprootwhentheyieldofsucculenttaprootwas68 633kgperhectare.Themainuptakestageofnutrientswasat3680daysofseedlingage.Thenutrientsabsorbedbyplantwouldmainlystoredinsucculenttaprootinharvest.
关键词
灯笼红萝卜
鲜重
干重
营养
红萝卜
denglonghongradish
freshweight
dryweight
nutrients
