干旱区生态环境知识资源中心(Arid): 施钾对旱地豌豆产量、水分效应及土壤钾素的影响

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	施钾对旱地豌豆产量、水分效应及土壤钾素的影响
其他题名	The effect of application of potassium on the yield of field pea,water use efficiency and potassium in soil in semi-arid area of Gansu
	谢奎忠 1; 黄高宝1 ; 李玲玲 1; 许爱霞 1; 赵君范 2; 李宗伟 1
ISSN	1000-7601
出版年	2007
卷号	25 期号:5 页码:15-19,68
中文摘要	2006年在陇中黄绵土上进行的钾肥肥效试验表明:黄绵土已出现钾素亏缺,施用钾肥能显著增加豌豆的耗水量,增大叶面积、单株节数、结荚数和单株豆粒数,增加了千粒重,从而提高了产量、经济系数、耗水量和水分利用率.与对照相比,其中施纯K_2037.5 kg/hm~2时,豌豆增产最大,增产26.7%,耗水量最大,增加14.5%,水分利用效率增加10.5%,经济系数提高17.2%.并建立了陇中地区钾肥适宜施用量与豌豆产量的数学模型y=0.0006x~3-0.1576x~2+10.973x+895.91,当钾肥施用量达到43.4 kg/hm~2时,经济效益最高.施钾能增加土壤速效钾含量和植株全钾含量.
英文摘要	The potassium application of field pea experiment was conducted in Huangmian soil in the semi-arid area of Gansu in 2006.The results showed that potassium in Huangmian soil was not enough for the growth of crop.Applying potassium could significantly increase the evapotranspiration and the yield factor of field pea,therefore,the yield,the water use efficiency and the economic coefficient of field pea were improved.Compared with CK,the application rate of K_2O reached 37.5 kg/hm~2,the yield,the evapotranspiration,the water use efficiency and the economic coefficient of field pea increased 26.7%,14.5%,10.5% and 17.2% respectively.And under this application rate,both the yield and the evapotranspiration were the highest.Mathematic model between the application potassium and the yield of field pea was y=0.0006x~3-0.1576x~2+10.973x+895.91. The potassium application rate at 43.4 kg/hm~2,the economic efficiency reached the highest.Application potassium could increase the content of available potassium in soil and the content of total potassium in plants.
中文关键词	黄绵土 ; 钾肥 ; 豌豆 ; 土壤水分 ; 旱地
英文关键词	Huangmian soil potassium fertilizer field pea soil moisture dryland farming
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3003262
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220900
作者单位	1.甘肃农业大学农学院, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学资源环境学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	谢奎忠,黄高宝,李玲玲,等. 施钾对旱地豌豆产量、水分效应及土壤钾素的影响[J]. 甘肃农业大学,2007,25(5):15-19,68.
APA	谢奎忠,黄高宝,李玲玲,许爱霞,赵君范,&李宗伟.(2007).施钾对旱地豌豆产量、水分效应及土壤钾素的影响.,25(5),15-19,68.
MLA	谢奎忠,et al."施钾对旱地豌豆产量、水分效应及土壤钾素的影响".25.5(2007):15-19,68.