气候变化领域集成服务门户(CCPortal): Phosphorus pool responses under different P inorganic fertilizers for a eucalyptus plantation in a loamy Oxisol

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DOI	10.1016/j.foreco.2018.10.053
	Phosphorus pool responses under different P inorganic fertilizers for a eucalyptus plantation in a loamy Oxisol
	Foltran E.C.; Rocha J.H.T.; Bazani J.H.; Gonçalves J.L.D.M.; Rodrigues M.; Pavinato P.; Valduga G.R.; Erro J.; Garcia-Mina J.M.
发表日期	2019
ISSN	0378-1127
起始页码	170
结束页码	179
卷号	435
英文摘要	Phosphate fertilizers play an important role in plant nutrition. Different P fertilizer sources such as high-solubility (simple superphosphate, SSP), low-solubility (rock phosphate, RP) and complex superphosphate (CSP) are available for plant supplementation. The objective of this study was to investigate the short- and long-term redistribution of soil P after application of different P sources at establishment of an Eucalyptus forest stand. We carried out two experiments to identify the short- and long- term changes in a Brazilian Oxisol. To property identify the P pools in different times, Hadleýs fractionation methodology was applied to a long-term studies and citrate and oxalate to short-term. From zero to 180 days, the soluble P fractions were not altered in the non-fertilized treatment. Under SSP, a slight increase in this P fraction was found until 30 days, followed by a decrease in later evaluations. During the same period, a slight reduction in Pi extracted by citrate and oxalate was found under the control and a large reduction (approximately 50%) under the SSP treatment. Intermediate behavior was observed under the CSP and RP treatments, whereas there was an increase in P-citrate and P-oxalate until 30 days followed by a reduction afterwards. These results suggest that this pool comprises a potential bioavailability of P to plants. Different fertilizer sources did not increase the most recalcitrant P pool. However, different sources increased the organic P pool, mainly organic moderately labile P at long-term evaluations. Organic labile pools showed a fertilizer-specific response where CSP and RP increased respectively by 43% and 41% during the first year, and decreased to 39% in CSP treatment and 50% in RP treatment during the third year. Available P pool was highly dependent on inorganic and occluded pools and the organic pool acted predominantly as a sink of P on available and inorganic pools. The results reinforce the high level of recalcitrance of the organic pool and the fact that Eucalyptus plants must access pools of residual P in order to maintain their nutritional demands. © 2018
英文关键词	Complex Super Phosphate (CSP); Hedley fractionation, Phosphate fertilization; Organic P
语种	英语
scopus关键词	Biochemistry; Nutrition; Oxalic acid; Phosphate fertilizers; Solubility; Complex Super Phosphate (CSP); Eucalyptus forests; Eucalyptus plantations; Eucalyptus plants; Fertilizer sources; Inorganic fertilizers; Long-term evaluation; Phosphate fertilizations; Lakes; bioavailability; evergreen forest; fertilizer application; fractionation; inorganic matter; loam; organic phosphorus; oxalate; Oxisol; phosphorus; plantation forestry; superphosphate; Biochemistry; Eucalyptus; Lakes; Nutrition; Oxalic Acid; Processing; Solubility; Sources; Brazil; Eucalyptus
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156185
作者单位	Forest Science Department, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil; Agriculture and Forest Engineering College, FAEF, Garça, SP, Brazil; Geplant Forest Technology, Piracicaba, SP, Brazil; Soil Science Department, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil; Timac Agro Brazil, Roullier Group, Porto Alegre, RS, Brazil; Department of Chemistry and Soil Chemistry, University of Navarra, Pamplona, Spain
推荐引用方式 GB/T 7714	Foltran E.C.,Rocha J.H.T.,Bazani J.H.,et al. Phosphorus pool responses under different P inorganic fertilizers for a eucalyptus plantation in a loamy Oxisol[J],2019,435.
APA	Foltran E.C..,Rocha J.H.T..,Bazani J.H..,Gonçalves J.L.D.M..,Rodrigues M..,...&Garcia-Mina J.M..(2019).Phosphorus pool responses under different P inorganic fertilizers for a eucalyptus plantation in a loamy Oxisol.Forest Ecology and Management,435.
MLA	Foltran E.C.,et al."Phosphorus pool responses under different P inorganic fertilizers for a eucalyptus plantation in a loamy Oxisol".Forest Ecology and Management 435(2019).