TITLE

施用粪肥对农田土壤磷素累积和饱和度增加速率的影响

AUTHOR(S)
严正娟; 陈硕; 周怀平; 杨振兴; 陈清
PUB. DATE
June 2016
SOURCE
Journal of Agro-Environment Science;2016, Vol. 35 Issue 6, p1110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In intensive farming regions of China, high rates of manure applications to arable field over years have caused high phosphorus(P)accumulation in soil and the associated environmental risks. Here a long-term field experiment was conducted to quantify the effects of manure applications on rates of soil P accumulation and the degree of P saturation(DPS) increase, i.e., the increment in soil P content or DPS per 1 kg P surplus, in an effort to develop guidelines for rational P management and non-point source pollution reduction. Results showed that 22 years of continuous excessive P inputs increased soil P content and DPS. In 0~20 cm soil depth, soil P and DPS increased linearly with increasing P surplus. Compared with single chemical fertilizer application, manure incorporation had no significant effects on the ratios of soil total P increments to P surplus increments, but significantly increased the ratios of soil available P and DPS to P surplus increments. The increases in soil Olsen-P, CaCl2-P, and DPS per 1 kg P surplus were 0.071 mg P·kg-1(r=0.608, P=0.029), 0.003 mg P·kg-1(r=0.528, P=0.066), and 0.036%(r=0.863, P=0.002) in the 0~20 cm soil depth under manure incorporations each year, which were 3.3-, 6.0- and 1.2-fold greater than those under single chemical fertilizer application, respectively. The changes of soil DPS also increased linearly with the changes of soil P. In the 0~20 cm soil depth, the increments in DPS per 1 mg P·kg-1 increase in total P, Olsen-P, and CaCl2-P were 0.13%, 0.42%, and 7.78%, each year, respectively. In 20~40 cm soil depth, there was no significant linear correlation between the increases of soil P, DPS and P surplus. However, the difference of increase rates between manure incorporation and single chemical fertilizer application tended to be greater in 20~40 cm soil depth than in 0~20 cm depth, suggesting that manure applications favored the movement of P to subsoil. Manure applications accelerated the increases of soil available P and DPS, which in turn promoted the losses of P. In conclusion, rational manure management is the key to mitigating non-point source pollution in intensive farming areas.
ACCESSION #
118016652

 

Related Articles

  • Considerations for fertilizer selection.  // NMPRO - Nursery Management & Production;Apr2009, Vol. 25 Issue 4, p48 

    The article offers several strategies for choosing controlled-release fertilizers (CRF) or water-soluble fertilizers (WRF). CRF are best for a crop type that has a single growth flush at the beginning of the growing season. WSF work best when matched to the irrigation water's alkalinity and...

  • Status of Soil Phosphorus in Context with Phosphate Solubilizing Microorganisms in Different Agricultural Amendments in Kachchh, Gujarat, Western India. Sharma, S. B.; Trivedi, M. H.; Sayyed, R. Z.; Thivakaran, G. A. // Annual Review & Research in Biology;2014, Vol. 4 Issue 18, p2901 

    Aims: The study was carried out to assess the soil Phosphorus (P) status (available and total) in farms with organic amendments and compared the results to those which practice an integrated amendment system. In conjugation to P status of soil, the soil microbial flora in terms of total...

  • Band Placement of Phosphorus Improves the Phosphorus Use Efficiency and Wheat Productivity under Different Irrigation Regimes. REHIM, ABDUR; FAROOQ, MUHAMMAD; AHMAD, FIAZ; HUSSAIN, MUBSHAR // International Journal of Agriculture & Biology;2012, Vol. 14 Issue 5, p47 

    This study was conducted to evaluate the phosphorus (P) application methods under different irrigation levels to maximize wheat yield and phosphorus use efficiency (PUE). P was applied at 0, 61, 104 and 142 kg P2O5 ha-1 as band placement or by broadcasting in wheat irrigated at four irrigation...

  • LOS MICROORGANISMOS SOLUBILIZADORES DE FÓSFORO (MSF): UNA ALTERNATIVA BIOTECNOLÓGICA PARA UNA AGRICULTURA SOSTENIBLE. Patiño-Torres, Carlos Omar; Sanclemente-Reyes, Oscar Eduardo // Revista Entramado;jul-dic2014, Vol. 10 Issue 2, p288 

    This article reviews in detail the biology of phosphate solubilizing microbes in the soil, to serve as a framework for the development of alternatives for the extensive use of phosphate biofertilizers. Different sources of information, primary and secondary, addressing the various aspects of...

  • Studies show biosolids can boost soil phosphorus levels for years.  // High Plains Journal;2/25/2013, Vol. 131 Issue 8, p10-B 

    The article offers information on a study conducted by the U.S. Department of Agriculture under the supervision of Eton Codling, agronomist of the Agricultural Research Service which reports that treated wastewater solids called biosolids can be used for increasing phosphorus levels in soils.

  • Phosphorus runoff tool available. Perry, Ann // Western Farm Press Exclusive Insight;4/23/2013, p4 

    The article discusses the release of the Annual Phosphorus Loss Estimator (APLE), a user-friendly spreadsheet program for the prediction of field-scale phosphorus loss in runoff for a whole year. Developed by scientists at the U.S. Department of Agriculture (USDA), led by Peter Vadas,...

  • Resposta do meloeiro, cultivado em um Neossolo Quartzarênico, a fontes e doses de fósforo. Silva, Francisco N.; Maia, Sandra S. S. // Brazilian Journal of Agricultural Sciences / Revista Brasileira ;jul/set2010, Vol. 5 Issue 3, p308 

    The objective of this study was to evaluate the effect of different sources and doses of phosphate fertilizers on the nutrient content of crop melon grown in a continuously fertilized Orthic Latosol Quratzarenic Neosol, at Chapada do Apodi, Rio Grande do Norte, Brazil. The study was carried out...

  • Some soil properties and microbial biomass of Pinus maritima, Pinus pinea and Eucalyptus camaldulensis from the Eastern Mediterranean coasts. Kizildag, Nacide; Sagliker, Hüsniye Aka; Kutlay, Ahu; Cenkseven, Şahin; Darici, Cengiz // EurAsian Journal of Biosciences;2012, Vol. 6, p121 

    Background: Salt-affected soils occupy wide areas that have ecological importance in semi-arid and arid regions. Excessive amounts of salt have adverse effects on soil physical and chemical properties and also on the microbiological processes. The soils of Pinus maritima, Pinus pinea, and...

  • Phosphorus losses can be reduced. BETTS, LYNN // Wisconsin Agriculturist;Oct2014, Vol. 245 Issue 10, p6 

    The article focuses on the lessons that can be learned from the completed sevenyear phosphorus runoff prevention project in the Pecatonica River Watershed in Wisconsin. According Laura Good at University of Wisconsin-Madison, land that had high soil phosphorus concentrations from previous heavy...

  • Don't farm averages. Frieberg, Dan // Corn & Soybean Digest Exclusive Insight;10/ 9/2014, p1 

    The article discusses how using data from one's fields can enable an individual to manage crop production variables that are manageable. Topics discussed include the nutrient response curve which has the tendency to have similar characteristics such as steeper at lower levels that flatten out at...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics