soil organic carbon nitrogen and fertility

... environment and if not manage well due to the overuse of some inorganic or chemical fertilizers may lead to soil degradation and soil destruction of the soil structure and the soil fertility However, ... Use of Liquid Organic Fertilizers In Improving Soil Chemistry and Fertility Without Harming Soil and the Environment Supervisors Dr Dedik Budianta and Dr Nguyen The Hung Abstract Soil has a very ... liquid organic fertilizers (LOF) can bring back the life into the soil as it provides microorganisms and soil nutrients that improves the soil chemistry and fertility The study area was in the Soil...

Ngày tải lên: 28/04/2016, 13:49

... W., and Xiasheng G (1991) Simple combination of biodegradation and carbon adsorption-the mechanism of the biological activated carbon process Water Research 25, 165-172 Zhao X., Hickey R F., and ... concentration during and after the shock loading of 3,5-DCP onto PACT and control reactors - 252 - Journal of Water and Environment Technology, Vol.1, No.2, 2003 3.2 Effects of dissolved organic matter ... amount of organic carbon on PAC for every incubation by glucose According to Sutherland (2001), extracellular polymers substance (EPS) contain essentially of proteins, polysaccharide and smaller...

Ngày tải lên: 05/09/2013, 08:40

... 1993) Total nitrogen (Nt) and organic nitrogen (Norg) were calculated as the sum of Kjeldahl-N and NO3 N and as the difference between Nt and the inorganic nitrogen (sum of NH4+-N and NO3-N), ... Sci Technol Table Initial soil physical and chemical (carbon, nitrogen and organic matter content) properties at - 22 and 22 - 55 cm soil layers in the ferrallitic soil of the Toumodi area, Côte ... the soil organic matter content which modifies the nitrogen cycle (Ouattara et al., 2006) Moreover, in Côte d’Ivoire, the low levels of organic matter and total nitrogen (N) were the major soil...

Ngày tải lên: 23/03/2014, 21:20

... (SEM) and Energy Dispersive X-ray analysis (EDX) were used to observe the structural morphology and composition of activated carbon RESULTS AND DISCUSSION 3.1 BET Surface Area of Activated Carbon ... Characteristics of Activated Carbons 2.4 Characterization of the Activated Carbons 2.4.1 96 Nitrogen adsorption studies The determination of the adsorption-desorption nitrogen isotherms was carried ... pyrolyzed at different activation temperatures under nitrogen and carbon dioxide are reported in Table The textural characteristics of activated carbon involving BET surface area, micropore surface...

Ngày tải lên: 07/08/2014, 14:20

... variables as y and x and the allometric coefficient as the slope Analysis of covariance (ANCOVA) was used to test for equality of regression coefficients RESULTS as 2.3 Carbon and nitrogen analysis ... size Both CO and N treatments had small effects on leaf, stem and root C concentrations (tables I and II) CO enrichment had significant effects on C/N ratios (tables I and II) of stem and roots ... atmospheric carbon dioxide and temperature on carbon partitioning, source-sink relations and respiration, Plant Cell Environ 14 (1991) 819-830 [19] Griffin K.L., Thomas R.B., Strain B.R., Effects of and...

Ngày tải lên: 08/08/2014, 14:21

... carbon and nitrogen regulation of gene expression validate the combined carbon and nitrogen (CN)-signaling hypothesis in plants Genome Biol 2004, 5:R91 Schneper L, Duvel K, Broach JR: Sense and ... Integrating carbon (C) and nitrogen (N) metabolism is essential for the growth and development of living organisms In addition to their essential roles as macronutrients, both C and N metabolites ... investigation of light and carbon signaling interactions in Arabidopsis Genome Biol 2004, 5:R10 Palenchar PM, Kouranov A, Lejay LV, Coruzzi GM: Genome-wide patterns of carbon and nitrogen regulation...

Ngày tải lên: 14/08/2014, 17:22

Ngày tải lên: 14/11/2014, 06:07

... Water and Environment Technology, Vol 7, No 2, 2009 concentration and a high ESP (Quirk and Schofield, 1955) In recent years, the air, water and soil in China have been polluted by economic and ... in fields could be predicted using the results of the soil column experiment MATERIALS AND METHODS Soil sampling and soil chemical analysis Soil samples were collected at Kangping (42゜ N, 123゜ ... the gypsum, and to examine the transport of solutes in alkali soil reclamation The inner hydraulic conductivity and the transport of salts such as cations (Na+, Ca2+, Mg2+ and K+) and Cl- in a...

Ngày tải lên: 05/09/2013, 09:38

... years until menopause, and increasing age is associated with lowered fecundity and infertility Women experience a decline in natural fertility that begins in the mid-30s, and they will often reach ... natural fertility and assisted reproductive technology success (except with egg donation) is significantly lower for women in their late 30s and 40s (II-2A) Because of the decline in fertility and ... the oocyte with age and decreasing quality of granulosa cells.23 Figure Natural fertility by age 600 Rate per 1000 wives 500 400 300 FEMALE ADVANCED REPRODUCTIVE AGE AND INFERTILITY 200 100 20...

Ngày tải lên: 13/02/2014, 16:20

... 1990 levels and 21.8 % in 2030 The carbon capture technology and the carbon transport and underground storage infrastructure are assumed to develop and become gradually technologically and commercially ... biofuels Biomass Combined heat and power Buying overseas carbon credits Energy demand for coal and oil fossil fuels in stationary and mobile sources Negative for both AQ and CC Negative for AQ Source: ... human health and/ or the environment —NOX, SO2, NH3, NMVOCs and PM10 (Box 1.2) The main air pollutants and their effects on human health and the environment Nitrogen oxides (NOX) Nitrogen oxides...

Ngày tải lên: 17/02/2014, 10:20

... (Cumulene) Carhyne Fig Organic compoundsbased on carbon- carbon bondsusingsp3,sp2 andsp hybrid orbitals and inorganic carbon materials as their extension these considerations to carbon materials which ... These three carbon materials (electrode graphites, carbon blacks and activated carbons) have a long history of usage and are called classic carbon materials, in contrast to newly developed carbon ... (3) typical carbon alloys and their preparation; (4) characterization of carbon alloys; and (5) development and applications of carbon alloys Prior to the preparation of this book, and as a spin-off...

Ngày tải lên: 05/03/2014, 15:20

... procedures are known as gamete and zygote intrafallopian transfer (GIFT and ZIFT) Some women with tubal infertility are not suitable candidates for GIFT and ZIFT GIFT and ZIFT are more invasive procedures ... data and publishing annual reports of pregnancy success rates for fertility clinics in the United States and Canada since 1989 In 1992, the U.S Congress passed the Fertility Clinic Success Rate and ... information on infertility and ART and an explanation of the data collection, analysis, and publication processes •  national report The national report section presents overall success rates and shows...

Ngày tải lên: 05/03/2014, 16:20

... counselling Infertility and assisted conception PEP BONET / PANOS PICTURES Infertility among women and men living with HIV Infertility affects 8–12% of the world’s population,91 with male and female ... HIV and maternal and child health and family planning departments and programmes was identified Broader participation in policy development and review processes of people living with HIV and ... Others may wish to regulate their fertility, so that they can decide whether to try for a pregnancy and when.9 Fertility- related needs of women and men living with HIV and of discordant couples may...

Ngày tải lên: 05/03/2014, 17:20

... identified and measured the mixing ratios of major volatile organic compounds emitted by pigs and sheep in Germany The diurnal variations of carbon dioxide, nitrous oxide, methane, and ammonia ... oxide and carbon dioxide, this paper identifies major VOCs emitted from sheep and pig buildings We also present the estimated mass release rates of some VOCs from these buildings Materials and ... at m/z 73, 93, 95, and 107, were attributed to methyl ethyl ketone, toluene, phenol, and C8 aromatics (xylenes, ethylbenzene, and benzaldehyde) plus hydrated butyric acid, and should be largely...

Ngày tải lên: 05/03/2014, 21:20

... Care Update 93 Organic Producers and Marketers Exempted from Commodity Promotion Assessments 94 Organic Standards and Certification 95 Organic Standards: By Whom and for Whom? 96 Organic Trade ... development of organic standards and certification; organic standards and standards setting processes; conformity assessment processes (international verification processes); and key challenges ... http://www.foodnavigator-usa.com/news/ng.asp?n=80758-nop -organic- fraud -organic- standards (accessed 10/24/07) 83 “NOP Collaborate with NOSB on Organic Grower Group Certification,” Organic Standard 73 (May, 2007): p Full text: http://www.organicstandard.com/TOS-73-page1.pdf...

Ngày tải lên: 07/03/2014, 08:20

Ngày tải lên: 08/03/2014, 14:20

... these reactions e− and h+ refer to conduction band electron and valence band hole, respectively, generated during the photoexcitation process (reaction (1)) On the other hand, htr + (see reaction ... hydrogen peroxide concentrations of and 10 mM with a gradually reducing trend (i.e., 3.76 and 3.54 for monocrotophos; 3.78 and 3.60 for parathion, respectively) Kumar and Davis studied the effect of ... Gas Products that contained the following components: carbon dioxide 0.998%, oxygen 19.930%, and balance nitrogen The injection volume for standards or samples was 0.5 ml The details of the GC...

Ngày tải lên: 16/03/2014, 00:07

... agreement with the results of XRD and TEM Two peaks centered at $1337 and $1592 cmÀ1 often called as D- and G-band, respectively confirm the existence of carbon [22–25] The D-band is known as to appear ... emission band and a new yellow band were observed from SiC–SiO2 core–shell nanowires decorated with carbon nanoparticles and considered to relate to the enhancement of oxygen deficiency and appearance ... the carbon in two kinds of nanowires are different It is well known that an interlayer having high carbon concentration exists at the interface between SiC and SiO2 and this interlayer induce carbon- related...

Ngày tải lên: 16/03/2014, 15:08

... The predominant and persistent indoor VOCs included aldehydes (e.g., formaldehyde, acetaldehyde, pentanal, hexanal and nonanal) and terpene hydrocarbons (e.g., a-pinene, 3-carene and d-limonene), ... direct and immediate effects The influence of indoor temperature and relative humidity on the emissions and concentrations of formaldehyde has been studied and modeled in chamber experiments and ... by chemical class (i.e., alcohols, ketones, aldehydes, aromatic hydrocarbons, terpene hydrocarbons and alkane hydrocarbons) and by decreasing volatility within class Many of the VOCs were measured...

Ngày tải lên: 22/03/2014, 14:20

... the textile and paper and pulp industry and in water treatment operations It occurs naturally at low levels in the air and water, in human and plant tissues and bacteria, and in food and beverages ... lethal mutations and gene mutations in mice; chromosomal aberrations and sister chromatid exchanges in Chinese hamsters and mice; and micronuclei in splenocytes and spermatids of rats and mice It ... Harderian gland, mammary gland, liver, kidney, skin, mesentery, forestomach and Zymbal gland In one study in rats, chloroprene caused increased incidences of tumours of the oral cavity, thyroid gland,...

Ngày tải lên: 28/03/2014, 19:20