摘要:
通过大棚小区试验,研究在无机肥施用量相同情况下,增施菌渣有机肥对大白菜产量及品质的影响。结果表明:菌渣施用量达30t·hm-2时,白菜产量、株高、叶绿素、维生素C、可溶性糖分别比对照提高43.5%、9.7%、26.7%、15.5%和21%;硝酸盐含量以对照最高,为1 120mg·kg-1,施用菌渣能使大白菜硝酸盐含量降低3.4%~24.2%。表明菌渣与无机肥混合施用,能显著降低硝酸盐在白菜体内的积累。
关键词:
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菌渣 /
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有机肥 /
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大白菜 /
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产量 /
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品质
Abstract:
In a greenhouse,utilization of mushroom dregs for fertilizing Chinese cabbages was investigated.When the dregs were applied up to 30t/hm2,the yield,plant height and contents of chlorophyll,vitamin C and soluble sugar of the cabbages increased 43.5%,9.7%,26.7%,15.5% and 21%,respectively,as compared with control.The highest nitrate content in the cabbages was 1,120mg/kg found in control.That was reduced by 3.4-24.2%with the dregs application.Consequently,besides improvements on quality,combining the mushroom dregs with regular inorganic fertilizers in the vegetable cultivation could significantly reduce the nitrate accumulated in the cabbages as well.
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