干旱区生态环境知识资源中心(Arid): Split delivering phosphorus via fertigation to a calcareous soil increased P availability and maize yield (Zea mays L.) by reducing P fixation

Arid

DOI	10.1007/s11368-021-02914-1
	Split delivering phosphorus via fertigation to a calcareous soil increased P availability and maize yield (Zea mays L.) by reducing P fixation
	Kang, Longfei; Zhang, Guoqiao; Chu, Guixin
通讯作者	Chu, GX (corresponding author), Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Zhejiang, Peoples R China.
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
出版年	2021
卷号	21 期号:6 页码:2287-2300
英文摘要	Purpose Phosphorus (P) fertilization methods significantly affect soil P availability, transformation, and crops yield. However, contradictory or paradoxical results are often available, and debates about this issue have never ceased so far. Therefore, the aims of this study are to explore influences of different P application methods on availability and transformation of added P in drip-irrigated system, and the responses of maize P uptake and its agronomic performances to P fertigation are also investigated. Materials and methods Here, we conducted a pot and filed experiments in drip-irrigated calcareous soil. Treatments included different P sources (phosphoric acid; polyphosphoric acid) with basal and split repeated application manners. Results and discussion Compared to the basal application, the average values of C-DGT-P (P concentrations tested via diffusive gradient in thin films technique), Olsen-P, water-soluble P, and in situ P in the split repeated P application increased by 23.7%, 10.2%, 16.5%, and 34.4%, respectively (pot experiment). Furthermore, the average values of labile P (resin P and NaHCO3-P) and moderately labile P (NaOH-P) with the repeated P addition increased by 19.7% and 12.6%, whereas the concentrations of non-labile P lowered by 19.3%, respectively, relative to basal application treatment (pot experiment). The same trend was obtained in field experiment, implying that complete repeated P addition significantly increased P availability, reduced soil P transformation, and decreased P fixation. Therefore, a better agronomic performance of maize (P uptake, grain yield, and phosphorus use efficiency) was achieved in the complete repeated P application rather than basal application. Besides, diffusive gradient in thin film technique (DGT) was proved to be an accurate and powerful approach in testing soil available P. Conclusions Our findings elucidate that repeated delivering P through fertigation method can be recommended as an effective P application strategy in drip-irrigated field, especially in semi-arid and arid regions. The feasibility of DGT method was certified and C-DGT-P could well characterize plant-accessible P.
英文关键词	Split P application Availability and transformation DGT technique Drip irrigation Calcareous soil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000633347200001
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350997
作者单位	[Kang, Longfei; Chu, Guixin] Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Zhejiang, Peoples R China; [Kang, Longfei; Zhang, Guoqiao] Shihezi Univ, Oasis Ecoagr Key Lab, Xinjiang Prod & Construct Grp, Dept Resources & Environm Sci,Coll Agr, Shihezi 832000, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Kang, Longfei,Zhang, Guoqiao,Chu, Guixin. Split delivering phosphorus via fertigation to a calcareous soil increased P availability and maize yield (Zea mays L.) by reducing P fixation[J],2021,21(6):2287-2300.
APA	Kang, Longfei,Zhang, Guoqiao,&Chu, Guixin.(2021).Split delivering phosphorus via fertigation to a calcareous soil increased P availability and maize yield (Zea mays L.) by reducing P fixation.JOURNAL OF SOILS AND SEDIMENTS,21(6),2287-2300.
MLA	Kang, Longfei,et al."Split delivering phosphorus via fertigation to a calcareous soil increased P availability and maize yield (Zea mays L.) by reducing P fixation".JOURNAL OF SOILS AND SEDIMENTS 21.6(2021):2287-2300.