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当前位置: 首页 > 文章 > 不同钾肥用量对地膜大葱品质、产量及经济效益的影响 北方园艺 2014 (14) 169-171
Position: Home > Articles > Effects of Potassium Fertilizer on Quality,Yield and Economic Benefit of Chinese Onion in Plastic Greenhouses Northern Horticulture 2014 (14) 169-171

不同钾肥用量对地膜大葱品质、产量及经济效益的影响

作  者：
李洪英
单  位：
青海省大通县塔尔镇经济服务中心
关键词：
钾肥用量;地膜栽培;大葱品质;产量;经济效益
摘  要：
以大葱为试材,在青海大通塔尔镇塔尔湾村川水地进行连续2年的大葱不同钾肥单因素试验。结果表明:地膜大葱栽培中,施钾肥对大葱的株高影响不大,合理施钾可以提高大葱的葱白长度、单株重量、假茎粗度;钾肥用量在0~135kg/hm2范围内,大葱葱白的维生素C含量随着钾肥用量的增加而增加;钾肥用量在135~270kg/hm2时大葱葱白的维生素C最高;不施用钾肥的大葱葱白的硝酸盐含量最高,但与不同钾肥施用量的大葱葱白的硝酸盐含量没有显著差异,且随着钾肥施用量的增加大葱葱白的硝酸盐含量逐渐下降;施钾肥可以提高大葱产量和经济效益,在河湟谷地大葱的钾肥施用量以90~135kg/hm2最合适。
译  名：
Effects of Potassium Fertilizer on Quality,Yield and Economic Benefit of Chinese Onion in Plastic Greenhouses
作  者：
LI Hong-ying;Economic Service Center in Tal Town of Datong County;
关键词：
potassium fertilizer;;plastic greenhouse cultivation;;Chinese onion quality;;production;;economic benefit
摘  要：
The single factor test on scallions with different amount of potassium application for two consecutive years was made in Tar Wan Village of Tal town in Qinghai Datong.The results showed the effect of potassium fertilizer on plant height was little,reasonable potassium application could improve stalk,single plant weight and cauloid diameter degrees in plastic greenhouse cultivation.The vitamin C content of the stalk increased with the increase of potash amount.The vitamin C content was the highest when the potash amount was 135~270kg/hm2.The nitrate content was the highest without the potash and decreased with the increased of the potash amount,but there were no significant difference with fertilized scallions.Potassium fertilizer could increase yields and economic benefits,the most appropriate potash application amount of scallions was 90~135kg/hm2 in Hehuang valley.

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