钾素用量对砂质潮土养分含量及小麦产量和品质的影响  

The Effects of Amount of Potassium Usage on Sandy Soil Nutrient Content,Yield and Quality of Wheat

作　　者：张保民[1] 韩咏 张志峰 程庆荣 王彩霞 王法宏[3] 

机构地区：[1]山东省滨州职业学院,山东滨州256603 [2]山东省滨州市滨城区农业局,山东滨州256600 [3]山东省农业科学院作物研究所,山东济南250100

出　　处：《河南农业科学》2010年第3期37-40,共4页Journal of Henan Agricultural Sciences

基　　金：国家科技支撑计划(2006BAD02A09);农业部小麦现代农业产业技术体系(nycytc-03);农业部公益性行业(农业)科研项目(3-2);山东省农业科学院创新基金;青年科研基金(2007YQH040)

摘　　要：在砂质潮土上进行了一次性基施不同用量K2O(不施钾肥、93.75kg/hm2、187.50kg/hm2、281.25kg/hm2、375.00kg/hm2、562.50kg/hm2)试验,研究其对土壤养分含量及冬小麦产量和品质的影响。结果表明,施钾量在0.00～375.00kg/hm2的范围内,随着施钾量的增加,小麦产量和品质均呈提高的趋势,超过375.00kg/hm2时,小麦产量和籽粒品质呈下降趋势。随着施钾量的增加,土壤中的速效钾含量不断升高,其他养分含量无明显的变化。要保持土壤中速效钾平衡,达到小麦优质高产,以施钾(K2O)281.25～375.00kg/hm2为宜。In order to study the effects of amount of potassium usage on sandy soil nutrient content and yield and quality of wheat,different amount of potassium（0kg/ha,93.75kg/ha,187.50kg/ha,281.25kg/ha,375.00kg/ha,562.50kg/ha）were treated in winter wheat areas.The results showed that,within the range of potassium volume between 0.00 kg/ha to 375.00kg/ha,the increasing of the amount of potassium will lead to the increasing of wheat yield and quality.When potassium amount surpassed more than 375.00kg/ha,however,wheat yield and grain quality will decline.With the increasing of the amount of potassium usage,soil available potassium increased,the other nutrients showed no significant changes.Therefore,for ensuring the balance between soil potassium and achieving high-yield,the usage of potassium（K 2O）should be limited between the 281.25kg/ha to 375.00kg/ha.

关 键 词：冬小麦 砂质潮土 钾肥 产量 土壤养分平衡 

分 类 号：S512.1[农业科学—作物学] S143.3