干旱区生态环境知识资源中心(Arid): Water-nutrient management enhances root morpho-physiological functioning, phosphorus absorption, transportation and utilization of cotton in arid region

Arid

DOI	10.1016/j.indcrop.2019.111975
	Water-nutrient management enhances root morpho-physiological functioning, phosphorus absorption, transportation and utilization of cotton in arid region
	Chen, Zongkui 1; Khan, Aziz 2; Shi, Xiaojuan 1; Hao, Xianzhe 1; Tan, Daniel Kean Yuen 3; Luo, Honghai 1
通讯作者	Luo, Honghai
来源期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
EISSN	1872-633X
出版年	2020
卷号	143
英文摘要	Phosphorus (P) plays a key role in regulating plants physio-biochemical processes of plants and is indispensable for cotton production. However, the mechanism how does root morpho-physiological characteristics can affect P uptake, assimilation and use efficiency in different soil layers at various fertigation depths have not been studied. To fill this knowledge gap, a two-year pot experiment under field conditions was conducted to evaluate the effects of two irrigation levels, i.e., presowing irrigation (W-80, 0.28 m(3) water equivalent to 80 +/- 5 % field capacity) and no presowing irrigation (W-0, no water applied to the entire depth of the tube), and two basal fertilization methods [surface application (F-10) and deep application (F-30)] on root physiology, biomass accumulation, P uptake, transportation, and distribution in the cotton crop. The W-80 treatment had 2.4-11.1% lower soil available P content (SAP) in the 0 - 50 cm soil layer but 6.1-14.4% higher SAP in the 60 -120 cm soil layer than those In the W o treatment. In the fertilization treatments, F-10 had 0.35-17.0% greater SAP content in the 0 - 20 cm soil layer than F-30. The W80F10 combination resulted in higher root length (RL) in the 0 - 20 cm soil layer, higher root acid phosphatase activity (ACP) in the 0 - 40 cm and 60 - 80 cm soil layers, and increased root phosphorus content (RP) in the 0-60 cm soil profile. W80F10 increased sap flow (SF), dry matter, and P accumulation in the reproductive organs compared with those in the other treatments. P utilization was positively associated with RL and root ACP in the 0 - 40 cm soil layer. Root ACP RL in the 0 -40 cm soil layer and root ACP in the 60 - 80 cm soil layer were also positively related with SF, but SF had a negative relationship with RP in the 0-60 cm soil layer. In conclusion, presowing irrigation in conjunction with basal surface fertilization can increase P absorption and translocation by improving RL and ACP in the 0-40 cm and 60 - 80 cm soil layers before the full flowering stage. This also improves the competitive ability of the reproductive organs to access RP in the 0 - 60 cm soil layer, leading to higher P utilization in cotton.
英文关键词	Phosphorus utilization Cotton Root morphology Sap flow Root acid phosphatase
类型	Article
语种	英语
国家	Peoples R China ; Australia
收录类别	SCI-E
WOS记录号	WOS:000503323200035
WOS关键词	GROWTH ; YIELD ; WHEAT ; FERTILIZER ; RESPONSES ; ACCUMULATION ; ARCHITECTURE ; STRATEGIES ; NUTRITION ; PHOSPHATE
WOS类目	Agricultural Engineering ; Agronomy
WOS研究方向	Agriculture
EI主题词	2020-01-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312259
作者单位	1.Shihezi Univ, Key Lab Oasis Ecoagr, Xinjiang Prod & Construct Grp, Shihezi 832003, Xinjiang, Peoples R China; 2.Guangxi Univ, Key Lab Plant Genet & Breeding, Coll Agr, Nanning 53005, Peoples R China; 3.Univ Sydney, Fac Agr & Environm, Plant Breeding Inst, Sch Life & Environm Sci, Sydney, NSW 2006, Australia
推荐引用方式 GB/T 7714	Chen, Zongkui,Khan, Aziz,Shi, Xiaojuan,et al. Water-nutrient management enhances root morpho-physiological functioning, phosphorus absorption, transportation and utilization of cotton in arid region[J],2020,143.
APA	Chen, Zongkui,Khan, Aziz,Shi, Xiaojuan,Hao, Xianzhe,Tan, Daniel Kean Yuen,&Luo, Honghai.(2020).Water-nutrient management enhances root morpho-physiological functioning, phosphorus absorption, transportation and utilization of cotton in arid region.INDUSTRIAL CROPS AND PRODUCTS,143.
MLA	Chen, Zongkui,et al."Water-nutrient management enhances root morpho-physiological functioning, phosphorus absorption, transportation and utilization of cotton in arid region".INDUSTRIAL CROPS AND PRODUCTS 143(2020).