干旱区生态环境知识资源中心(Arid): 春小麦调亏灌溉对土壤钾素养分的影响

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	春小麦调亏灌溉对土壤钾素养分的影响
其他题名	Effects of Regulated Deficit Irrigation on Soil Potassium Nutrients in Spring Wheat Field
	张恒嘉 1; 许健 2
ISSN	1672-3317
出版年	2009
卷号	28 期号:1 页码:86-89
中文摘要	对河西绿洲灌区春小麦调亏灌溉2年后的土壤速效钾和全钾的变化进行了研究,并用配对样本 t 检验(双尾检验)对小麦收获时土壤钾素养分指标年际间的差异、土壤全钾与速效钾及其与全生育期调亏供水量间的关系进行了分析.结果发现,春小麦调亏灌溉对土壤钾素养分有明显影响,2004年小麦收获时0～20、20～40、0～40cm土层全钾、速效钾均显著低于2003年.回归分析发现,调亏灌溉春小麦收获时0～20 cm土层全钾和速效钾与小麦全生育期供水量呈线性正相关,0～20 cm和0～40 cm土层速效钾也随着全钾的增加呈显著线性增加的趋势.
英文摘要	The dynamics of soil available potassium (SAK) and total potassium(STK)in spring wheat field after two years (2003 and 2004) of regulated deficit irrigation (RDI) were studied in Hexi oasis irrigation region,the differences in soil potassium indexes at harvest between the two experimental years were analyzed using Paired-Samples T Test (2-tailed), and the relationships between SAK, STK and the total amount of irrigation water (IR)throughout wheat growing seasons and that between SAK and STK were analyzed. The results showed that the soil potassium nutrients in spring wheat field were obviously affected by RDI, and STK and SAK in 0～20 cm, 20～40 cm, and 0～40 cm layers at wheat harvest were significantly lower in 2004 than those in 2003. Regression analysis indicated that SAK and STK were linearly and positively correlated with IR during wheat growing season, while SAN was also linearly and significantly increased with the increase of STK in 0～20 cm and 0～40 cm layers.
中文关键词	速效钾 ; 全钾 ; 调亏灌溉 ; 春小麦
英文关键词	soil available potassium soil total potassium regulated deficit irrigation spring wheat
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY ; AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:3537123
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/2XILL650/223777
作者单位	1.甘肃农业大学,工学院水利系, 兰州, 甘肃中国; 2.甘肃农业大学,工学院水利系, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	张恒嘉,许健. 春小麦调亏灌溉对土壤钾素养分的影响[J]. 甘肃农业大学,2009,28(1):86-89.
APA	张恒嘉,&许健.(2009).春小麦调亏灌溉对土壤钾素养分的影响.,28(1),86-89.
MLA	张恒嘉,et al."春小麦调亏灌溉对土壤钾素养分的影响".28.1(2009):86-89.

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