干旱区生态环境知识资源中心(Arid): 15N Isotope Labeled Tracking of the Nitrogen Utilization of Apple under Water and Nitrogen Coupling Application in Arid and Semiarid Areas

Arid

DOI	10.3390/agronomy14061245
	15N Isotope Labeled Tracking of the Nitrogen Utilization of Apple under Water and Nitrogen Coupling Application in Arid and Semiarid Areas
	Lan, Guanquecailang; Feng, Yongqing; Ma, Weifeng; Feng, Tong; Lu, Yang; Mao, Juan; Chen, Baihong
通讯作者	Chen, BH
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2024
卷号	14 期号:6
英文摘要	In order to solve the problem of water waste and environmental pollution in arid and semiarid areas, this study aimed to investigate the effects of different water and nitrogen treatments on the growth of apple leaves, photosynthetic physiology, nutrient uptake and nitrogen use efficiency. A two-factor experimental design was used in this experiment. The first factor was three levels of irrigation (40-50%, 50-65%, 65-80% RWC, relative water content) and the second factor was four levels of nitrogen application (0, 150, 300, 600 kg/ha), which were a completely randomized combination. The results showed that irrigation and nitrogen application had significant effects on the growth, photosynthetic rate, chlorophyl and mineral element contents of apple tree leaves, but excessive input of water and nitrogen would restrain the growth of apple tree leaves. The Ndff% of different organs for apple trees were evaluated by N-15 isotope tracer technology, and the highest Ndff% value was found in leaves, ranging from 1.01-1.23 parts per thousand. Next were roots with 0.29-0.43 parts per thousand, and the lowest Ndff% was found in fruits with 0.03-0.08 parts per thousand. The calculation results of N-15 utilization in apple trees showed that nitrogen use efficiency (NUE) under the medium-water low nitrogen (W1N1) treatment had the highest value with 43.33%. In conclusion, considering the growth physiology and nitrogen utilization of apple trees, it is recommended that a water and fertilizer coupling combination scheme for apple trees in arid and semi-arid areas of the Loess Plateau should be that of a medium-water and medium-nitrogen mode (W1N2, 50-65% RWC, 300 kg/ha).
英文关键词	apple water and nitrogen coupling photosynthetic physiology nitrogen use efficiency
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001254937700001
WOS关键词	USE EFFICIENCY ; DIFFERENT IRRIGATION ; PHOTOSYNTHESIS ; YIELD ; GROWTH ; ABSORPTION ; RESPONSES ; GENOTYPES ; PATTERNS ; QUALITY
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402781
推荐引用方式 GB/T 7714	Lan, Guanquecailang,Feng, Yongqing,Ma, Weifeng,et al. 15N Isotope Labeled Tracking of the Nitrogen Utilization of Apple under Water and Nitrogen Coupling Application in Arid and Semiarid Areas[J],2024,14(6).
APA	Lan, Guanquecailang.,Feng, Yongqing.,Ma, Weifeng.,Feng, Tong.,Lu, Yang.,...&Chen, Baihong.(2024).15N Isotope Labeled Tracking of the Nitrogen Utilization of Apple under Water and Nitrogen Coupling Application in Arid and Semiarid Areas.AGRONOMY-BASEL,14(6).
MLA	Lan, Guanquecailang,et al."15N Isotope Labeled Tracking of the Nitrogen Utilization of Apple under Water and Nitrogen Coupling Application in Arid and Semiarid Areas".AGRONOMY-BASEL 14.6(2024).