A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area

doi:10.3390/agronomy13010179

	A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area
	Dong, Shide 1,2,3; Wang, Guangmei1,2,3 ; Li, Xiaobin 4; Kang, Yaohu 4
发表期刊	AGRONOMY-BASEL
	2023
卷号	13 期号:1 页码:12
关键词	sunflower sowing density fertigation saline soil yield components
DOI	10.3390/agronomy13010179
通讯作者	Kang, Yaohu(kangyh@igsnrr.ac.cn)
英文摘要	Sunflower is one of the pioneer crops cultivated in salt-affected arid areas. The influences of sowing density on the growth performance of this crop under fertigation conditions have not been well studied. This study arranged four sowing density treatments, 41,667, 35,714, 31,250, and 27,778 plants ha(-1,) marked as D30, D35, D40, and D45, respectively, to reveal the relationships between soil salinity, growth performance, and sowing density under drip fertigation conditions. The results showed that the electrical conductivity of saturated paste extracts (ECe) decreased during the growing seasons but increased on the topsoil during the non-growing seasons in all of the treatments. The sowing densities had remarkable influences on the ECe in the 0-40 cm soil layer (ECe-40). The average ECe-40 during the two seasons for treatments D30-D45 correspondingly decreased by 7.0%, 33.9%, 11.1%, and 15.8% when compared to the original value. The soil pH in the 0-40 cm soil layer during the two seasons for treatments D30-D45 correspondingly decreased by -0.03, 0.20, 0.20, and 0.27 when compared to the original value. Increasing the spacing in the rows could promote the stem diameter, plant biomass, and proportion of biomass allocated underground. The yield and related yield components in this experiment under fertigation were significantly higher than those under surface irrigation. A sowing density between 31,250 and 35,714 plants ha(-1) could ensure both the high yield and high morphological quality of the seeds, which could be recommended for sunflower cultivation under drip fertigation conditions.
资助机构	Key Research and Development Program of Shandong Province ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; Shandong Provincial Natural Science Foundation
收录类别	SCI
语种	英语
关键词[WOS]	WATER-USE EFFICIENCY ; PLANTING DENSITY ; WEED SUPPRESSION ; SOIL-SALINITY ; BURIED STRAW ; GRAIN-YIELD ; NITROGEN ; GROWTH ; IRRIGATION ; REGIME
研究领域[WOS]	Agriculture ; Plant Sciences
WOS记录号	WOS:000916731000001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/32571
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Kang, Yaohu
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 3.Shandong Saline Alkali Land Modern Agr Co, Dongying 257300, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Dong, Shide,Wang, Guangmei,Li, Xiaobin,et al. A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area[J]. AGRONOMY-BASEL,2023,13(1):12.
APA	Dong, Shide,Wang, Guangmei,Li, Xiaobin,&Kang, Yaohu.(2023).A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area.AGRONOMY-BASEL,13(1),12.
MLA	Dong, Shide,et al."A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area".AGRONOMY-BASEL 13.1(2023):12.