干旱区生态环境知识资源中心(Arid): Response of maize growth and soil biological characteristics to planting density under fertigation in a semi-arid region

Arid

DOI	10.25165/j.ijabe.20241702.8090
	Response of maize growth and soil biological characteristics to planting density under fertigation in a semi-arid region
	Jiang, Peng; Li, Lei; Xu, Dejia; Wang, Rui; Sun, Quan
通讯作者	Sun, Q
来源期刊	INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING
ISSN	1934-6344
EISSN	1934-6352
出版年	2024
卷号	17 期号:2 页码:186-192
英文摘要	Increasing the planting density can exacerbate crop competition for water, nutrients and space which results in a decline in the crop yields. However, the effect of increasing planting density on crop growth and soil biological characteristics in barren sandy land in the semi-arid regions are still unclear. In this study, we investigated the effects of six planting densities (5.4x10(4), 6.45x10(4), 7.95x10(4), 9.5x10(4), 9.75x10(4) and 10.5x10(4) plants/hm(2)) on maize growth, photosynthesis characteristics, yield and soil biological characteristics in barren sandy soil in the semi-arid region of Ningxia, China. The results indicated that the stem diameter and spike length decreased linearly with increasing planting density. The plant height, spike weight, grain weight and 100-grain weight decreased with increasing plating density. Moreover, the root length increased with increasing planting density. The diameter, volume and activity increased and then decreased with increasing planting density. There was no significant difference (p>0.05) in the effect of planting density on transpiration rate intercellular CO2 concentration. As well, the soil microbial biomass carbon and microbial biomass nitrogen decreased with increasing planting density. The soil catalase activities increased and then decreased with increasing planting density. The alkaline phosphatase activity, the amounts of soil bacteria and actinomycetes increased with increasing planting density. Generally, a moderately increasing planting density can improve maize yield when water and nutrients are sufficient. The optimal planting density was 8.29x10(4) plants/hm(2) and the highest yield was 15.84 t/hm(2) in barren sandy soil in semi-arid region of Ningxia, China. This study provides a theoretical basis for high yield and high efficiency of maize.
英文关键词	maize growth planting density yield fertigation soil enzyme activity
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:001241670800001
WOS关键词	YIELD
WOS类目	Agricultural Engineering
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404188
推荐引用方式 GB/T 7714	Jiang, Peng,Li, Lei,Xu, Dejia,et al. Response of maize growth and soil biological characteristics to planting density under fertigation in a semi-arid region[J],2024,17(2):186-192.
APA	Jiang, Peng,Li, Lei,Xu, Dejia,Wang, Rui,&Sun, Quan.(2024).Response of maize growth and soil biological characteristics to planting density under fertigation in a semi-arid region.INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING,17(2),186-192.
MLA	Jiang, Peng,et al."Response of maize growth and soil biological characteristics to planting density under fertigation in a semi-arid region".INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING 17.2(2024):186-192.