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	苹果幼树生理特性和水分生产率对水肥的响应研究
其他题名	Response of Physiological Properties and Crop Water Productivity of Young Apple Tree to Water and Fertilizer
	周罕觅; 张富仓; Roger Kjelgren; 吴立峰; 高明霞; 李志军
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2015
卷号	46 期号:4 页码:77-87
中文摘要	为探明半干旱地区苹果幼树水肥精准管理模式,研究了苹果幼树生理特性和水分生产率对不同水肥的响应机制,试验设置4个灌水水平,其灌水上下限分别为田间持水率的75%~85%(W_1)、65%~75%(W_2)、55%~65%(W_3)、45%~55%(W_4)和3个施肥水平(N-P_2O_5 -K_2O),即高肥:0.6-0.6-0.2 g/kg干土(F_1)、中肥:0.4-0.4-0.2 g/kg干土(F_2)、低肥:0.2-0.2-0.2 g/kg干土(F_3)。结果表明:苹果叶片相对含水率和饱和含水率以及叶绿素SPAD值均可以反映土壤水分的亏缺状况;叶片脯氨酸含量最高和最低分别为F_1 W_4和F_3W_1处理(F_1 W_4比F_3W_1增加440.8%),丙二醛含量最高和最低分别为F_3 W_4和F_1 W_1处理(F_3 W_4比F_1 W_1增加167%);叶片水分利用效率(WUE)最大值出现在F_2 W_2处理,与F_1 W_1相比,其净光合速率P_n、蒸腾速率T_r、气孔导度G_s分别减小了18.8%、29.1%、23.2%,但WUE却增加了14.2%;水分生产率(CWP)最大值也基本上出现在F_2W_2处理,与F_1 W_1相比,虽然其干物质质量减少了5.2%,但耗水量却减少了16.4%,CWP增加了13.4%;叶片水分利用效率在一定程度上能够反映其水分生产率,F_2 W_2处理为节水、节肥的最佳水肥耦合模式。
英文摘要	In order to explore the accurate management mode of water and fertilizer supply for young apple tree in semi-arid region,the bucket cultivation experiment was conducted to study the response mechanism of physiological properties and crop water productivity of two-year-old young apple tree to different water and fertilizer treatments. The treatments consisted of four irrigation levels:75% ~ 85%(W_1),65% ~ 75% (W_2),55% ~ 65% (W_3) and 45% ~ 55% (W_4) of field capacity,and three fertilization (N-P_2O_5 -K_2O) levels:0. 6-0. 6-0.2 (F_1),0. 4-0. 4-0.2 (F_2) and 0.2-0.2-0.2 g/kg (F_3)water-free soil. The results showed that relative and saturated water contents and SPAD value of young apple treesleaves all can reflect the deficit status of soil moisture. The highest and lowest proline were found in F_1 W_4 and F_3 W_1 treatments (that in F_1 W_4 was increased by 440. 8% compared with F_3W_1),and the highest and lowest malonaldehyde were found in F_3W_4 and F_1 W_1 treatments (that in F_3W_4 was increased by 167% compared with F_1W_1),respectively. The highest water use efficiency of leaf (WUE) and crop water productivity (CWP) both appeared in the treatment of F_2W_2 of which the net photosynthetic rate P_n,transpiration rate T_r and stomatal conductance G_s were decreased by 18. 8%,29. 1% and 23. 2%,respectively,while WUE was increased by 14. 2%,dry mass was decreased by 5. 2%,water consumption was also decreased by 16. 4% and CWP was increased by 13. 4%. WUE can reflect the CWP to some degree and the treatment of F_2W_2 reached the best water and fertilizer coupling mode.
中文关键词	苹果树 ; 水肥 ; 生理 ; 光合 ; 水分利用效率 ; 水分生产率
英文关键词	Apple tree Water and fertilizer Physiology Photosynthesis Water use efficiency Water productivity
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:5403303
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233065
作者单位	周罕觅, 西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国.; 张富仓, 西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国.; 吴立峰, 西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国.; 高明霞, 西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国.; 李志军, 西北农林科技大学, 旱区农业水土工程教育部重点实验室, 杨凌, 陕西 712100, 中国.
推荐引用方式 GB/T 7714	周罕觅,张富仓,Roger Kjelgren,等. 苹果幼树生理特性和水分生产率对水肥的响应研究[J]. 西北农林科技大学,2015,46(4):77-87.
APA	周罕觅,张富仓,Roger Kjelgren,吴立峰,高明霞,&李志军.(2015).苹果幼树生理特性和水分生产率对水肥的响应研究.农业机械学报,46(4),77-87.
MLA	周罕觅,et al."苹果幼树生理特性和水分生产率对水肥的响应研究".农业机械学报 46.4(2015):77-87.