Nitrogen mineralised

D. Robinson, B. Griffiths, K. Rilz, and R. Wheatley, Root-induced nitrogen mineralisation a theoretical analysis, PUini and Soil 7/7 185 (1989). 

J. Hassink, Effects of soil texture and structure on carbon and nitrogen mineralisation in grassland soils. Biology and Fertility of Soils I4 26 (1992). 

H. A. Verhocf and L. Brussaard, Decomposition and nitrogen mineralisation in natural and agroecosystems the contribution of. soil animals. Biogeochemistry II 175 (1990). 

L. A. Bouwman, J, Bloem, P. H. J. F. Van den Boogert, F. Bremer, G. H. J. Hoen-derboom, and P. C. de Ruiter, Short-term and long-term effects of bacterivorous nematodes and nematophagous fungi on carbon and nitrogen mineralisation in microcosms. Biology and Fertility of Soils / 7 249 (1994). 

B. Griffiths and D. Robin.son, Root-induced nitrogen mineralisation a nitrogen balance model. Plant Soil 759 253 (1992). 

Strong, D.T., Sale, P.W.G. and Helyar, K.R. 1999. The influence of the soil matrix on nitrogen mineralisation and nitrification. IV. Texture. Australian Journal of Soil Research 37 329-344. 

Lehtomaki, A. and Bjpmsson, L., Two-stage anaerobic digestion of energy crops methane production, nitrogen mineralisation and heavy metal mobilisation, Environ. Technol., 27, 209-218, 2006. 

Schimel, J. P. Bennett, J. (2004). Nitrogen mineralisation challenges of a changing paradigm. Ecology, 85, 591-602. 

Wang, W. J., P M. Chalk, D. Chen, and C. J. Smith. 2001. Nitrogen mineralisation, immobilisation and loss, and their role in determining differences in net nitrogen production during waterlogged and aerobic incubation of soils. Soil Biol. Biochem. 33 1305-1315. 

Canali, S. and A. Benedetti (2002), Nitrogen mineralisation in Microbiological methods for assessing soil quality. Action Cost 831 (in press). 

Cereal production kinetics of crop requirements and soil nitrogen mineralisation rates Fruit growing fertilisation, fruit quality, hedgerows, biodiversity... 

Nitrogen use. Excess nitrogen applications, excess soil nitrogen mineralisation and/or too early apphcations of nitrogen can produce lush growth, dense canopies and weak straw. These crops are prone to stem lodging. 

M. Clarholm, Interactions of bacteria, protozoa and plants leading to mineralisation of soil nitrogen. Soil Biology and Biochemistiy / 7 181 (1985). 

P. Gibbs and D. Barraclough, Gross mineralisation of nitrogen during the decomposition of leaf protein I (ribulose 1,5-diphosphate carboxilase) in the presence or absence of sucrose. Soil Biol. Biochem. 30 1821 (1998). 

Nitrogen is added to the soils in organic forms in crop residues and manures and in synthetic forms (ammonium, nitrate and urea) in fertilisers. The organic nitrogen in soil is slowly mineralised by biological processes, the final stages being to ammonium, nitrate and nitrite.43 The conversion of ammonium to nitrite in soils is rapid, while the conversion of nitrite to nitrate is so rapid that nitrite is rarely detectable in soils. 

Vahatalo, A. V., and Zepp, R. G. (2005). Photochemical mineralisation of dissolved organic nitrogen to ammonium in the Baltic Sea. Environ. Sci. Technol. 39, 6985-6992. 

Highly efficient destruction of toxic organic materials with high space-time yield No nitrogen oxides are formed. No expensive gas treatment required Heteroatoms are mineralised and leave the process with the aqueous phase Plugging of the tube reactor by dissolved or produced salts is a problem cr induced corrosion can be minimised by Ti-liners in the preheater and cooler Corrosion and plugging are reduced with the double pipe reactor... 

A simple methodology, called UV/UV method, has been designed for the quick determination of the different forms of nitrogen in water, nitrite, nitrate, ammonium and TKN [4]. The general procedure is based on several steps (Fig. 3) but includes a UV determination of the oxidised forms and one or two UV photo-oxidation step(s) for the mineralisation of the reduced forms. Neither filtration nor acidification of the sample is needed. 

The earliest studies of this kind seem to be those of Cooper (1935) and Von Brand et al. (1937). The amount of phytoplankton, zooplankton or mixed plankton they incubated in experimental bottles filled with water almost corresponded to that of organic P and N in the sea. The experiments ware carried out under dark, aerobic conditions for periods of 3—5 weeks, the temperature being 15—19°C and 20—25°C, respectively. The amounts of phosphates and mineral nitrogenous compounds accumulated exceeded the oi anic P and N supplied by the zooplankton. The authors attributed this to partial mineralisation of dissolved OM of sea water. The feet is of... 

---