| 氮硫养分平衡对大白菜营养品质和抗病性影响的研究 |
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| 引用本文： | 刘光栋,杨力,宋国菡. 氮硫养分平衡对大白菜营养品质和抗病性影响的研究[J]. 山东农业大学学报(自然科学版), 1999, 30(4) |
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| 作者姓名： | 刘光栋 杨力 宋国菡 |
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| 作者单位： | 山东省农科院土肥所!山东济南２５０１００(刘光栋，杨力，宋国菡)，山东省农业厅土肥站!山东济南２５０１００(泉维洁，王建)，历城区唐王乡蔬菜站!山东济南２５０１００(杜新茂) |
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| 摘 要： | 研究了十字花科作物白菜施用硫肥对合硫必需氨基酸蛋氨酸和脱氨酸含量、硝酸根含量以及抗病性方面的影响。合理施用硫肥可以提高白菜体内胱氨酸和蛋氨酸的含量，同时降低有害物质ＮＯ３在组织内的积累，从而提高白菜的营养品质。适量施用硫肥减少氮肥用量可以大大改善白菜对霜霉病的抗病效果;;在低氮水平时还可以对病毒病和软腐病有一定的防治作用，但在高供氮水平时施用硫肥的抗病效果不明显。
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| 关 键 词： | 氮硫平衡 白菜 硝酸根 氨基酸 抗病性 |
Effects of nitrogen and sulphur balance on nutritional quality and desise resistance of Chinese cabbage |
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| Liu Guangdong,Yang Li,Son Guohan. Effects of nitrogen and sulphur balance on nutritional quality and desise resistance of Chinese cabbage[J]. Journal of Shandong Agricultural University, 1999, 30(4) |
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| Authors: | Liu Guangdong Yang Li Son Guohan |
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| Abstract: | This paper studied the effects of sulfur application and balance sulfur and nitrogen supplyon cruciferous vegetable Chinese cabbage in sulfur containing amide acids i. e. cystine and methionine, No3- as well as disease resistance. Sound application of sulfur can increase the contents ofboth cystine and methionine, together with less accumulation of the health halmful substance NO3 in plant tissue. This positive effect improves the nutritional quality or value of Chinese cabbage.Suitable quantity of sulfur fertilization can considerably enhance the resistance of Chinese cabbage tosome diseases such as downy mildew (Peronospora parasitica), and to virus disease and soft rot(Erwinia carotovora) only when nitrogen nutrition is at a lower level. The effects of disease resistance to both soft rot (Enwinia carotovora) and virus disease seems not that obvious when nitrogen issurplus supplied. |
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| Keywords: | sulfur fertilizer Chinese cabbage nitrate amino acid disease-resistance |
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