不同氮磷钾配比对马铃薯原原种的产量、干物质含量和经济系数的影响  

Impact of Different NPK Combinations on Pre-elite Potato Yield, Dry Matter Content and Economic Coefficient

作　　者：李勇[1] 吕典秋[1] 胡林双[1] 曲丽[2] 宿飞飞[1] 刘尚武[1] 王绍鹏[1] 刘震宇[1] 杨焕春 吕文河[2] 

机构地区：[1]黑龙江省农业科学院植物脱毒苗木研究所,黑龙江省马铃薯工程技术研究中心,黑龙江哈尔滨150086 [2]东北农业大学,黑龙江哈尔滨150030 [3]农业部质量安全研究所,黑龙江哈尔滨150086

出　　处：《中国马铃薯》2013年第5期288-292,共5页Chinese Potato Journal

基　　金：国家科技支撑计划项目"东北地区马铃薯标准化;机械化生产技术集成与示范"(2012BAD06B02);黑龙江省科技攻关重大项目"马铃薯综合增产技术的研究与示范"(GA08B102)

摘　　要：为了探讨马铃薯脱毒苗氮磷钾肥的科学配施问题,利用早熟品种‘荷兰15号’脱毒试管苗为试验材料,在温室扦插种植生产原原种。采用单因素随机设计,设计了16个氮磷钾配比组合方式,探讨了氮磷钾配比对马铃薯原原种产量性状(商品薯产量和总产量)、块茎干物质含量和经济系数的影响。通过比较不同氮磷钾配比组合对主要性状的影响,筛选出产量和干物质含量均高且经济系数较高的氮磷钾配比组合1个,即N为16 kg/667 m2、P2O5为11 kg/667 m2、K2O为14 kg/667 m2。Plantlets in vitro of the early maturing potato variety ＇Holland 15＇ were transplanted in a greenhouse to study reasonable application of NPK fertilizer for pre-elite potato production. The research was conducted in a completely random design and 16 different combinations of NPK were tested for their effects on marketable potato yield, total potato yield, dry matter content and economic coefficient. By comparison of the effects of different combinations of NPK on the main traits, one combination （N 16, P2O5 11, and K2O 14 kg/667 m2） was identified, which produced both high tuber yield and dry matter content, and relative high economic coefficient.

关 键 词：马铃薯 氮磷钾配比 原原种 产量 干物质含量 经济系数 

分 类 号：S532[农业科学—作物学]