The fate of carbon and nitrogen from an organic effluent irrigated onto soil : process studies, model development and testing

Results: Regression analysis showed that the decreased soil total nitrogen, total carbon, total phosphorus, and soil organic matter content in eroded plots had a negative impact on

While we argue an identity study should be undertaken to aid the development of a brand strategy, later in the paper we point out an identity study is also appropriate after

Sediment accumulation rates and organic carbon diagenesis model outputs for 11 Rotorua lakes for the period 1886 -2016.. 30

Figure 6.4 shows how monthly mean CO 2 fluxes responded to mean peat temperature (T), depth to water table (DWT) and volumetric moisture content (VMC). In general, greater CO 2

Nitrogen limitation for the saw- dust treatment has been discussed in regard to DEA and it seems plausible that nitrate availability was both limiting the potential for

stable, highly porous allophane nano- and microaggregates allow much organic matter and organic 675. carbon (potentially up to ~80%) to be

Empirical models were developed for predicting the amount of ammoniacal and organic nitrogen absorbed, from an aqueous solution of ammonium sulphate and from a dairy

However, due to the poor P retention capabilities of Organic soil (a result of low concentrations of P-sorbing metal oxides) there is an elevated risk of P losses in runoff which

(4) To examine the effects of different soil management practices in the field on the availability to plants of inorganic and organic P forms present in

• The location of an onsite waste/recycling storage area for each dwelling, that is of sufficient size to accommodate Council’s waste, recycling and garden organic bins having

Over 500 tonnes of food and garden waste from Tweed’s green bins were used to commission the newly constructed Tweed Organic Processing Facility located at the Tweed Recycling

Based on these allowable concentrations (mean and median), 17% of the leachates collected from the diff erent cropping systems showed NO 3 – concentrations higher than the

Chapter 4 ‘Nitrous oxide emissions from denitrification depend on the energy available from soil organic matter decomposition and added carbon substrates’ leads on from chapter 3 and

Key words: microbial community structure; soil biology; soil processes; function; past and current management; organic and conventional farming practices; lupin (Lupinus

Hence the objectives of this research were (1) to quantify the interaction between temperature and soil substrate availability on soil microbial activity in the absence of plant

2.1 Definition of organic farming and organic products 13 2.1.1 International definition of organic farming and organic products 13 2.1.2 Definition of organic farming and

To assess the variability of total soil nitrogen (TN) on grazed and irrigated pastures, TN was quantified from spatially distinct “areas” within the paddock (irrigated

The result of the use of this equipment combined with the right cultures and attitudes now means that spillage – even minor leakage to the environment need not now occur and

The concentrations of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), and dissolved organic phosphorus (DOP) all increase southwards along the Coorong faster

resulting from farm-dairy effluent application to mole-pipe drained soils. The contribution of preferential flow of effluent to whole-farm pollutant losses in subsurface drainage

Table 4.17b Results of the statistical analyses using the logistic model to compare both the percentages of 15N and of Bromide recovered in the leachate of

Organic carbon supports provides a food source for soil biology, aids in improving soil structure, water holding capacity and nutrient retention.. High organic carbon levels

 Mastitis, though more of a challenge on the organic farm, is manageable and has remained below tolerance levels; other animal health issues have not been a problem under organic

When there are metals which exhibit strong binding affinities to organic ligands present in the drip waters, the available metal (free metal ions and metal complexes) is much