不同镁肥用量对冬种马铃薯产量和品质的影响  

Effects of different amount of magnesium application on yield and quality of winter potato

作　　者：黄继川[1] 彭智平[1] 于俊红[1] 林志军[1] 吴雪娜[1] 杨林香[1] 

机构地区：[1]广东省农科院农业资源与环境研究所/广东省养分资源循环利用与耕地保育重点实验室/农业部南方植物营养与肥料重点实验室,广东广州510640

出　　处：《广东农业科学》2014年第7期74-76,共3页Guangdong Agricultural Sciences

基　　金：广东省科技计划项目(2012B020303003;2012A0 20100004);广东省农机化项目"多功能;智能型水肥一体化施肥设备集成研究及应用示范"

摘　　要：通过田间试验研究了镁肥用量对冬种马铃薯产量和品质以及养分含量的影响。结果表明,合理施用镁肥能够提高马铃薯产量,提高薯块粗蛋白、可溶性糖以及淀粉含量,且薯块氮、钾、镁等养分含量也有一定程度的提高;在珠三角地区冬种马铃薯适宜的镁肥(MgO)用量为75.0 kg/hm2。A field experiment was carried out to investigate the effects of magnesium nutrition on yield, quality ana nutrition content of winter potato tuber. The result showed that the yield increased and the crude protein, soluble sugar and starch content of potato tuber enhanced, and the nitrogen, potassium and magnesium content of potato tuber increased when magnesium fertilizer was applied. It is suggested that 75.0 kg/hm2 application on winter potato in Pearl River Delta area is advisable.

关 键 词：冬种马铃薯 镁 产量 品质 

分 类 号：S143.7[农业科学—肥料学] S532.062[农业科学—农业基础科学]