| 施钾对中低肥力灌淤土春小麦产量及品质的影响 |
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| 引用本文： | 党根友,魏亦勤,郭 强,樊 明,裘 敏,沈强云.施钾对中低肥力灌淤土春小麦产量及品质的影响[J].西北农业学报,2010,19(12):35-40. |
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| 作者姓名： | 党根友 魏亦勤 郭 强 樊 明 裘 敏 沈强云 |
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| 作者单位： | 1. 宁夏农林科学院,农作物研究所,宁夏永宁,750105
2. 宁夏吴忠市利通区农技推广心,宁夏吴忠,751100 |
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| 基金项目： | 宁夏科技攻关项目“优势粮食作物持续增产技术研究”; 国家现代农业产业技术体系建设“宁夏小麦综合试验站”专项资金 |
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| 摘 要： | 在宁夏灌淤土中低土壤肥力条件下,采用钾肥施肥梯度法研究施钾对宁夏春小麦产量及品质的影响。结果表明,在中低肥力条件下,施钾对春小麦有显著的增产效果,增产幅度2.1%~9.1%,平均增产5.4%,钾肥用量为75 kg/hm2增产效果最好,较对照增产9.1%,每千克K2O增产春小麦8.2 kg,折合经济效益为930元/hm2;适宜的施钾量下,春小麦叶面积系数、叶绿素含量(SPAD值)、干物质积累以及籽粒、穗颖及茎鞘的含氮量有显著的提高,籽粒蛋白质含量、沉降值和面筋含量等品质性状也有改善。本试验条件下,施钾量(K2O)以45~75 kg/hm2为宜,有利于春小麦产量和品质同步提高,实现优质、高产、高效。
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| 关 键 词： | 灌淤土 春小麦 钾肥 产量 品质 |
Effect of Potassium on Yield and Quality of Spring Wheat in Irrigation silted Soil |
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| DANG Genyou,WEI Yiqin,GUO Qiang,FAN Ming,QIU Min and SHEN Qiangyun.Effect of Potassium on Yield and Quality of Spring Wheat in Irrigation silted Soil[J].Acta Agriculturae Boreali-occidentalis Sinica,2010,19(12):35-40. |
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| Authors: | DANG Genyou WEI Yiqin GUO Qiang FAN Ming QIU Min and SHEN Qiangyun |
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| Institution: | DANG Genyou1,WEI Yiqin1,GUO Qiang2,FAN Ming1,QIU Min1 and SHEN Qiangyun1(1.Crop Research Institute of Ningxia Agriculture and Forestry Sciences,Yongning Ningxia 750105,China,2.Litong District Agricultural Technology Extension Center,Wuzhong Ningxia 751100,China) |
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| Abstract: | The studies were carried out to evaluate the effect of potassium fertilizer on yield and quality of spring wheat by using potassium gradient method in high and low soil fertility respectively.The results showed that under the high fertility conditions,the yield-increasing effect of potassium was smaller;but under the low-fertility conditions,potassium had significant effect on wheat yield,the yield increased by 2.1% to 9.1%,the average was 5.4%,the optical amount of potassium was 75 kg/hm2,the yield increas... |
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| Keywords: | Irrigation-silted soil Spring wheat Potassium Yield Quality |
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