Evaluation of phosphorus and nitrogen balances as an indicator for the impact of agriculture on environment: A comparison of a case study from Poland and Mississippi US

Gaj, R.; Bellaloui, Nacer

doi:10.4236/as.2012.32036

Cited by 12 publications

(9 citation statements)

References 27 publications

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“…At the scale of the country, however, great regional variability of the amount of phosphorus supplied with manure, slurry, or mineral fertilisers should be considered. Balances assess the accuracy of management of elements, and are one of the most important agro-environmental indicators (Kupiec 2015;Gaj and Bellaloui 2012;Koper et al 2002;Sassenrath et al 2013). A positive balance described as surplus or losses constitutes a r e b m u n d l e i F d l e i Y l a r e n i M s r e s i l i t r e f c i n a g r O s r e s i l i t r e f s r e s i l i t r e F g k N + M e k a t p u P s u r o h p s o h P e c n a l a b t⋅ a h…”

Section: Phosphorus Balancementioning

confidence: 99%

Effect of long-term slurry application on contents of available forms of soil macronutrients

Gaj

Budka

Antonkiewicz

et al. 2018

Soil Science Annual

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The objective of the study was to assess the effects of long-term application of liquid manure from pig production and digestate from manure fermentation installation for biogas production on chemical changes in the soil, i.e.: soil reaction, accumulation of available forms of phosphorus, potassium, and magnesium in the soil arable layer, as well as the phosphorus balance. The assessment was carried out in two highly productive farms specialising in pig production, located in the Zachodniopomorskie Province. The soils under the study were treated with slurry and digestate annually for subsequent 12 years. The assessment of changes in nutrient content and accumulation was performed twice: after 10 and 12 years of fertiliser treatments. The rate of changes in soil reaction due to slurry and digestate application varied depending on the analysed field. Irrespective of the analysed field, 12-year application of slurry caused a drop in soil pH by an average of half a unit. The direction of changes in the content of available nutrient forms in the soil varied depending on the element evaluated. Notwithstanding the analysed field and the type of slurry used, a decrease in the content of available forms of potassium in the soil was observed. Slurry fertilisation did not affect magnesium contents in the soil. In the study period, the content of magnesium remained unchanged. Among the evaluated nutrients, an increased nutrient content in the soil was only found in the case of phosphorus – as a result of application of liquid manure in combination with mineral fertilisation. In the analysed farms, in the case of fields fertilised with slurry and digestate, the phosphorus balance was positive, and ranged from 15 to 40 kg P·ha−1. The obtained values of the phosphorous balance strongly suggest that regardless of the type of liquid manure used on the farm, measures should be taken to introduce changes in the scope of fertilisation plans, with particular emphasis on the principles of balanced fertilisation.

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Section: Phosphorus Balancementioning

confidence: 99%

Effect of long-term slurry application on contents of available forms of soil macronutrients

Gaj

Budka

Antonkiewicz

et al. 2018

Soil Science Annual

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“…Moreover, the relatively low cost of applying and pressure to maximise yields it is far outweighed by the extra value of crop obtained, resulting in over-rather than undersupply (Kitchen and Goulding, 2001;Stark and Richards, 2008). These agricultural systems are often associated with livestock concentrated at high stocking density, especially for pigs, poultry and to lesser extent dairy cattle (Gaj and Bellaloui, 2012). .…”

Section: Spatialisation In Agro-environmental Land Unitsmentioning

confidence: 99%

Spatialised agricultural nitrogen balance of Veneto region, Northern Italy: sources identification, assessment and policy relevance

2014

Global NEST Journal

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The aim of this study is to deepening knowledge on the agricultural nitrogen cycle within the Veneto region (Northern Italy) by computing the Gross Nitrogen Balance (GNB) with highly geographical resolution. Spatialised maps of nitrogen input and output, created using the most detailed information available, are important tools for assessing environmental sustainability. ). The GIS-based analysis highlights interdependencies between farmer's choices of land uses and the environmental pressures of agricultural activities at the sub-regional level. The results of the study can be used to inform policy makers about the effects caused by environmental management actions that should take into account the interlinkages between landscapes, habitats, biodiversity and ecological integrity.

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“…Nutrient balance (OECD, 1997(OECD, , 2001(OECD, , 2007a(OECD, , 2007b; see also Parris, 1998) (henceforth NB) is extensively used in agricultural and environmental studies (e.g., Van Eerdt and Fong, 1998;Slak et al, 1998;Salo and Turtola, 2006;Gaj and Bellaloui, 2012;Sassenrath et al, 2012). The NB aims to measure the potential damage to the environment through the nutrient excess.…”

Section: Introductionmentioning

confidence: 99%

Estimating stocks and flows of nitrogen: Application of dynamic nutrient balance to European agriculture

Kuosmanen

2014

Ecological Economics

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Evaluation of phosphorus and nitrogen balances as an indicator for the impact of agriculture on environment: A comparison of a case study from Poland and Mississippi US

Abstract: ABSTRACT

Cited by 12 publications

References 27 publications

Effect of long-term slurry application on contents of available forms of soil macronutrients

Effect of long-term slurry application on contents of available forms of soil macronutrients

Spatialised agricultural nitrogen balance of Veneto region, Northern Italy: sources identification, assessment and policy relevance

Estimating stocks and flows of nitrogen: Application of dynamic nutrient balance to European agriculture

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