Linked Life Data

12916210

Source:http://linkedlifedata.com/resource/pubmed/id/12916210

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-8-14
pubmed:abstractText
Analysis of mobile forms of phosphorus of a Huangnitu, a typical paddy soil in the Taihu Lake region, Jiangsu was conducted. The soil has been put into a scheme of longterm fertilization treatments for 13 years. Total P content varied in arrange of 0.3-0.5 g.kg-1 under a range of total P fertilizer input of 0-53 kg/(hm2.a). As estimated from the total P pool values by mass balance principle, the soil had been subjected to water loss of P 2-8 kg/(hm2.a), with that under chemical fertilizers only being the biggest. The ratio of soluble P to the total was in a range of 0.2%-0.4%, without significant influence by the different fertilization schemes. While chemical fertilizer plus pig slurry manure applications had remarkably enhanced the resin-P pool by 20-40 mg.kg-1, P mobilization was not observed due to combined application of chemical fertilizers and straw amendments despite of the increase of the SOM. Therefore, P water loss in paddy soils might have active under continuous chemical fertilization alone in agriculture of this region and could not be accounted for by dissolution in water and subsequent runoff migration. For reducing the present prominent non point source pollution of N and P in the region, it is suggested that chemical fertilizers are applied in combination with an appropriate amount of manure or straw return for reducing soil P loss and, in turn, the non-point source pollution loading.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0250-3301
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
91-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
[Effect of long-term fertilization practices on mobility of phosphorus in a Huangnitu paddy soil receiving low P input in the Taihu Lake region, Jiangsu Province].
pubmed:affiliation
Institute of Resources, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, Nanjing 210095, China. gxpan@njau.edu.cn
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't