干旱区生态环境知识资源中心(Arid): A Trade-Off between the Growing Performance and Sowing Density of Sunflower (Helianthus annuus L.) under Fertigation in an Arid Saline Area

Arid

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; Wang, Guangmei; Li, Xiaobin; Kang, Yaohu
通讯作者	Kang, YH
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:1
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.
英文关键词	sunflower sowing density fertigation saline soil yield components
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:000916731000001
WOS关键词	WATER-USE EFFICIENCY ; PLANTING DENSITY ; WEED SUPPRESSION ; SOIL-SALINITY ; BURIED STRAW ; GRAIN-YIELD ; NITROGEN ; GROWTH ; IRRIGATION ; REGIME
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/2XILL650/395178
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],2023,13(1).
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).
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).