nitrogen and phosphorus balance indicators in organic soils

... Changes in soil carbon, nitrogen and phosphorus In this paper soil carbon, nitrogen and phosphorus concentrations and related elemental ratios, as well as and nitrogen and phosphorus stocks were investigated ... corresponding final paper in BG if available. Changes in soil carbon, nitrogen and phosphorus due to land-use changes in Brazil J D Groppo1, S R M Lins5, P B Camargo5, E D Assad1, H S Pinto2, S C Martins6, ... pastures increased In theses soils, there was an inversion in relation to forest soils, and Trang 412, 2533–2571, 2015 Changes in soil carbon, nitrogen and phosphorus an ammonium dominance over...

Ngày tải lên: 24/11/2022, 17:39

... REPORTTrends in Demographic and Reproductive Health Indicators in Nepal Further analysis of the 1996, 2001, and 2006 Demographic and Health Surveys Data Trang 2This report presents the findings from ... services, inter- and intra-sectoral coordination, decentralization of health administration, developing the traditional system of medicine, and promoting the participation of national and international ... [Nepal] 2006c MDG indicators of Nepal, 1990/91-2005/06 Kathmandu, Nepal b Ministry of Health and Population (MOHP) [Nepal], New ERA, and Macro International Inc 2007 Nepal Demographic and Health Survey...

Ngày tải lên: 05/03/2014, 16:20

... the paddy soils around the tin and tungsten mining areas 3.2 As and Heavy Metals in Soils Total contents of As and heavy metals (Cd, Cr, Cu, Mn, Ni, Pb and Zn) in the collected soils and their ... of contamination in agricultural soils and waters by toxic elements (As, Cd, Cr, Cu, Mn, Ni, Pb and Zn) and to clarify the contaminant pathways from the tin and tungsten mining areas, and (2) ... As and heavy metal contents in soils close to the tin and tungsten mines (Dai Tu district, N Vietnam)(mg kg−1) Soils from the tin mining area Forest soil Paddy fields Soils from the tungsten mining...

Ngày tải lên: 15/12/2017, 23:57

... Chen Y Advanced nitrogen and phosphorus removal in A2O – BAF system treating low carbon to nitrogen ratio domestic wastewater rontiers of Environmental Science and Engineering in China 2011;5:474–480 ... performance via continuous flow by treating real brewery wastewater The role of MBR in the com-bined system and its contribution to organic matter, nitrogen and phosphorus removal were also investi-gated ... con-centration initially increased from around 5600 mg/L to nearly 6000 mg/L on day 60 and was maintained for the remaining days of running When the flux was 6.4 LMH in the phase 1, the TMP was in the...

Ngày tải lên: 13/01/2020, 20:53

... inoculation and close of N P K The total nitrogen uptake in mung bean was found to increase with increasing in the level of B upto the 1.5 kg B ha-1 with Rhizobium inoculation and further increase ... significantly increasing the availability of phosphorus in red soils over the control(RDF) and Rhizobium inoculation alone while at par with rest of treatment The increasing in availability of phosphorus ... significantly grain yield and decreased at 3.0 kg ha-1 of boron application in first year experiment However linear increasing trend of grain yield was obtained with increasing in the level of boron...

Ngày tải lên: 06/08/2020, 00:49

... largely include, sustaining biological activity and diversity; regulating and partitioning water and solute flow; filtering, buffering, degrading, immobilizing and detoxifying organic and inorganic ... parameters in rice soils and to compare soil quality indexing methods viz., Principal component analysis, Minimum data set and Indicator scoring method and to develop soil quality indices for formulating ... translating science into practice Agriculture, Ecosystems and Environment 88, 119-127 Doran, J.W and Parkin, T.B 1994 Defining and assessing soil quality In: Defining Soil Quality for a Sustainable Environment...

Ngày tải lên: 21/09/2020, 12:08

... India *Corresponding author A B S T R A C T Introduction Nowadays, the indiscriminate use of inorganic fertilizers are producing very hazardous effect on soil properties as well as lowering ... of shade, inorganic, organic and biofertilizer the uptake and availability of major nutrient in turmeric genotype CL 147 South Indian Horticulture, 54(1-6): 295-303 Pandey, G., Pandey, R., ... utilize various sources of nutrients, particularly under organic farming in order to increase the production of crop by maintaining soil fertility and quality This can partly be accomplished through...

Ngày tải lên: 14/10/2020, 17:56

... 3.1 Spin tunneling versus spin injection The distinction between spin tunneling and spin injection in OSVs is challenging since the MR response in these phenomena essentially looks the same In addition, ... organic spintronics by using organic single crystals and aligned polymers 2 Basic concepts In this section, we will review the basic concepts on spin in-jection/detection and spin transport in ... especially in the organic spintronics We note that the notion of strong SOC and well-defined band transport in organics are absent, the optical spin injection/detection in these materials is inhibited In...

Ngày tải lên: 04/02/2021, 11:49

... 3.1 Spin tunneling versus spin injection The distinction between spin tunneling and spin injection in OSVs is challenging since the MR response in these phenomena essentially looks the same In addition, ... organic spintronics by using organic single crystals and aligned polymers 2 Basic concepts In this section, we will review the basic concepts on spin in-jection/detection and spin transport in ... especially in the organic spintronics We note that the notion of strong SOC and well-defined band transport in organics are absent, the optical spin injection/detection in these materials is inhibited In...

Ngày tải lên: 17/03/2021, 20:11

... Eq. (2) and universal scaling can be obtained using a simple heat balance, based on Joule heating in combination with an algebraic energy dependence of the relaxation of charge carriers The resulting ... reducing Eq. (5) to Eqs (4b) and (4a), respectively The equal exponents in Eqs (4a) and (4b) also explain why there is no longer a kink in the main panel of Fig. 3(b), whereas there is one in the ... similar behavior In most experimental investigations observations of US behavior are explained as stemming from Luttinger liquid behavior, which is related to interacting electrons confined to one...

Ngày tải lên: 24/11/2022, 17:46

... or incorporated into the soil and incubated for 21 d Volatilized NH3 was determined by trapping it in acid Inorganic N and P were determined by leaching the soil with 0.01 M of CaCl2 during ... The acid-washed sand was added in order to facilitate leaching of inorganic N and P at determined times during the incubation study A PL was collected from a PL stack remaining after application ... significance † means soil + sand together 2.5 Calculations and Statistical Analysis Inorganic N and P in the leachate (amounts from the two leaching events combined) and in the final KCl extracts were...

Ngày tải lên: 04/12/2022, 16:07

... Status and Fluctuation of Macronutrients of Nitrogen, Phosphorus and Potassium in Paddy Soils of Thai Binh Province Luu The Anh Institute of Geography (IG), Vietnam Academy of Science and Technology ... management (2nd Edition) International Rice Research Institute (IRRI), Philippines, International Plant Nutrition Institute (IPNI) and International Potash Institute (IPI), Singapore, 2010 [7] ... management, pp 1-45 International Rice Research Institute (IRRI), International Plant Nutrition Institute (IPNI) and International Potash Institute (IPI), 2007 Trang 10[5] Timsina J., Jat M.L and Majumdar...

Ngày tải lên: 11/12/2017, 11:18

... capacity b) Adding oxalate in submerged soils before interacting soils with the electrolyte solution containing P: Apply 6g (NH4)2C2O4 in 200g soil, submerge soils in 3cm deep Determine the amount ... SCIENCE AND PRACTICE - Meaning of science: Contributing to the theoretical basis of the phosphorus nutrient in submerged soils in southern Vietnam and the tropical; pointing out the factors affecting ... adding oxalate into the electrolyte solution containing P: Directely adding (NH4)2C2O4 at concentration levels 0 and 2.818 mg/l into 0.01 M KCl solution containing KH2PO4 (0-400 mg P/l), determine...

Ngày tải lên: 17/08/2015, 15:54

... monsoon during kharif (July) resulted in delayed sowing of kharif crops The rainfall received during rabi season mainly during October and November was 152.2 mm and the October rainfall was ... (SMB-C) and nitrogen (SMB-N) Soil microbial biomass carbon and nitrogen was estimated by fumigation and extraction method (Carter, 1991) by using following formula Ninhydrin reactive N in fumigated ... in fumigated soil - Ninhydrin reactive N in unfumigated soil MBC g of soil = - x 24 Weight of soil sample Ninhydrin reactive N in fumigated soil - Ninhydrin reactive N in unfumigated soil MBN...

Ngày tải lên: 15/05/2020, 12:13

... rainfall over India Mon Weather Rev 115:695–703 [4] Kumar Ashok, D S Pai, J V Singh, Ranjeet Singh, D R Sikka, 2012: Statistical Models for Long-Range Forecasting of Southwest Monsoon Rainfall ... Southwest Monsoon Rainfall Based on NCEP’s Coupled Forecast System Atmospheric and Climate Sciences, 2012, 2, 479-491 [11] Jing-Jia Luo, Sebastien Masson, Swadhin Behera, Satoru Shingu, and Toshio Yamagata, ... Craig Long, Muthuvel Chelliah, Yan Xue, Boyin Huang, Jae-Kyung Schemm, Wesley Ebisuzaki, Roger Lin, Pingping Xie, Mingyue Chen, Shuntai Zhou, Wayne Higgins, Cheng-Zhi Zou, Quanhua Liu, Yong Chen,...

Ngày tải lên: 17/03/2021, 20:32

... and experience of Nitrogen supply and management in organicfarming systems, including : Nitrogen fixation; Nitrogen recycling; the effect of the length of the fertilitybuilding phase or ley and ... holding and by fixation of atmospheric N2 by legumes (Briggs et al 2005) Nitrogen exists in two main forms: organic and inorganic Inorganic N is readily available to plants in the forms in which ... temperatures and reduced nitrogen mineralization inDecember In response, mineralization only increased in the spring, by which time nitrate leaching approachedzero as drainage volumes fell and both...

Ngày tải lên: 17/04/2022, 20:27

... Application of Organic and Inorganic Inputs Addition of P from both organic and inorganic sources generally resulted in increase in the Olsen P relative to the control The magnitude of the increase in the ... effect, in terms of increased Olsen P, when inorganic P sources were applied in combination with OMs In general, the combined application of organic and inorganic P sources resulted in observed increases ... greater than the actual increase obtained by combining the inorganic and organic P sources, at the same total P application rate (Figures1 6) Combined application of organic and inorganic P sources...

Ngày tải lên: 02/11/2022, 09:28

... nitrogen in water-stable aggregates in abandoned agricultural lands in an arid ecosystem of northwest china J Arid Land 8, 350–363 (2016). 4 Gelaw, A M., Singh, B R & Lal, R Organic carbon and nitrogen ... During management of pasture and cropland, aboveground plant biomass harvest and soil disturbance (sowing, weeding and tillage etc.) also influence soil structure and reduce soil nutrient and ... SOC and TN concentrations in the three sizes of aggregates and bulk soil, followed by prescribed-burning land and fuel-wood shrubland, and pasture and maize field had relatively lower SOC and...

Ngày tải lên: 04/12/2022, 16:39

... efficiency of nitrogen (TAN, NO 3 - and TN) and phosphorus (PO 4 3- và TP) compounds in wastewater was observed in the treatment of 3 kg/m 3 combined with aeration, which can meet the standard of ... assess combined effects of red seaweed (Gracillaria tenuistipitata) densities and aeration regimes on nitrogen (N) and phosphorus (P) compound absorption of red seaweed in effluent from the intensive ... on the nitrogen (N) and phosphorus (P) absorption ability in effluent from the intensive black tiger shrimp farming of red seaweed (Gracilaria tenuistipitata) at different densities and aeration...

Ngày tải lên: 24/04/2024, 02:35

... solutions and soils using the Langmuir equation, ionic strength, the total metal retained in the soils, soils characteristics (including pH and clay content) and an empirical power function for kinetic ... single and binary solutions are similar in soils S1, S2 and S3 and about one order of magnitude lower in S4 than in the rest of the soils As described above, the mineralogical composition of soils ... the initial concentration in S1, S2 and S3, and 91% in S4 While these percentages did not vary for Pb from binary solutions, Cd sorption at 15 min increased, resulting in more than 87% of the initial...

Ngày tải lên: 15/03/2014, 23:22