干旱区生态环境知识资源中心(Arid): 不同耕作措施对旱地春小麦旗叶光合特性的影响

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	不同耕作措施对旱地春小麦旗叶光合特性的影响
其他题名	Effects of different tillage methods on flag leaf photosynthetic characteristics of spring wheat in semi-arid area
	练宏斌; 黄高宝; 谢军红; 赵天武; 钱美宇
ISSN	1003-4315
出版年	2009
卷号	44 期号:1 页码:64-68
中文摘要	研究了不同耕作措施下春小麦旗叶光合生理特性的变化.结果表明:不同耕作措施下旗叶光合速率(P_n)从孕穗到完熟期均呈逐步下降的趋势,但免耕结合秸秆覆盖(NTS)、传统耕作结合地膜覆盖(TP)和免耕(NT)处理的P_n在乳熟期有小幅度的回升.与处理T(传统耕作)相比,NTP(免耕结合地膜覆盖)、TP、NTS、NT以及TS(传统耕作结合秸秆覆盖)的平均P_n分别提高了15.17%、11.26%、8.97%、4.08%和9.46%,平均蒸腾速率(T_r)分别提高了14.40%、16.OO%、8.00%、3.20%和12.80%.但是保护性耕作措施(除NT外)下旗叶的平均水分利用效率(WUE)均小于传统耕作T.不同耕作措施对P_n、T_r和WUE影响最为显著的生育时期分别是乳熟期、孕穗期和乳熟期;生育时期对P_n、T_r和WUE的影响大于耕作措施对其的影响.
英文摘要	Some flat leaf photosynthetic characteristics of spring wheat under different tillage methods were measured in semi-arid area of the Loess Plateau. The results showed that the photosynthesis rate (P_n)under the different tillage methods was gradually decreased from booting stage to mature-ripe stage,but the P_n under no tillage with stubble retention (NTS), conventional tillage with plastic mulching(TP)and no-till with no stubble(NT)could slightly be improved in milk-ripe stage; compared with conventional tillage(T),the average P_n of no-till with plastic mulching(NTP),TP, NTS, NT and conventional tillage with stubble incorporating (TS) could be improved by 15.17%, 11.25%, 8.97%, 4.08% and 9.46% respectively, the average transpiration(T_r) could be improved by 14.40%, 16.00%, 8.00%, 3.20% and 12.80% respectively; however, the average water use efficiency (WUE) under the conservative tillage methods was less than that under T except NT; the growth stages in which the different tillage methods had the greatest effect on P_n, T_r and WUE were milk-ripe stage, booting stage and mike-ripe stage respectively;the effect of the growth stage on the P_n, T_r and WUE was greater than that under the different tillage methods.
中文关键词	半干旱区 ; 保护性耕作 ; 春小麦 ; 光合特性
英文关键词	semi-arid area conservation tillage spring wheat photosynthetic characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3560311
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/2XILL650/223495
作者单位	甘肃农业大学农学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	练宏斌,黄高宝,谢军红,等. 不同耕作措施对旱地春小麦旗叶光合特性的影响[J]. 甘肃农业大学,2009,44(1):64-68.
APA	练宏斌,黄高宝,谢军红,赵天武,&钱美宇.(2009).不同耕作措施对旱地春小麦旗叶光合特性的影响.,44(1),64-68.
MLA	练宏斌,et al."不同耕作措施对旱地春小麦旗叶光合特性的影响".44.1(2009):64-68.