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Philip of Macedon Philip II of Macedonia BiographyQuestions concerning soil fertility, erosion and the use of fertilizers are currently at king phillip, the forefront of the global agricultural agenda. By the middle of the 21st century, enough food will need to be produced to sustain approximately 9 billion people (Pretty el al., 2010). However, agricultural fields that are ploughed using conventional methods have increased rates of soil erosion, which threatens agricultural sustainability (Montgomery, 2007). Consequently, practices such as conservation tillage are considered preferable, as they reduce soil erosion, enhance soil organic carbon and colonized, reduce nutrient depletion (Cerri et al., 2007). King Phillip 2? However, practices such no-till are not being implemented worldwide; only 6% of global cropland area was managed using conservation tillage in 2006 (Huggins and Reganold, 2008; Lal, 2007). Therefore, agricultural and soil scientists are searching for colonized, more sustainable forms of land use and more efficient agricultural production practices (Pretty et al., 2010). Agricultural modernization has not occurred equally worldwide. The slash-and-burn agricultural system persists in the tropical world despite of 2 its wide land use dynamic; showing areas where this system persists; other with change in fallow length and areas in colonized transition (i.e., land use intensity) (van Vliet et al., 2012). In the slash-and-burn system, farmers cut down the vegetation, and king phillip 2, dry and examples of symbolic, burn it to clear the terrain and phillip, fertilize the aboriginal law in soil (called “enriched ash-bed”) (Kang and Sajjapongse, 1980; Nye and Greenland, 1964; Reuler and Janssen, 1993; Tanaka et al., 2005). Fire is an important environmental phenomenon that regulates terrestrial biogeochemical cycles (Hogue and Inglett, 2012; Bod?? et al., 2014). Phillip? On the other hand, fire also causes significant changes in sherrin soil physical, mineralogical, chemical, and biological properties (Certini, 2005; DeBano et al., 1998). Following a fire, soil erosion tends to increase, accompanied by nutrient loss. This process plays a major role in the depletion of soil nutrients that can occur in slash-and-burn systems; the post-fire gain in nutrients can be offset or reversed by king phillip 2 soil erosion. Most studies have focused on the effects of fire on The Importance, soil properties and nutrient improvement. Few studies have sought to understand soil erosion and nutrient loss in slash-and-burn agricultural systems; such studies are controversial and some authors argue that the losses are sustainable (de Neergaard et al., 2008; Rodenburg et al., 2003; Tanaka et al., 2005). Other research highlights the possible unsustainability of this agricultural practice (Borggaard et al., 2003; Gafur et al., 2003; Juo and Manu, 1996). In slash-and-burn agriculture the losses of nutrients has been studied extensively; however the study of losses of king phillip 2 several nutrients altogether, in sherrin kangaroo particular with attention to micronutrients is scarce. To contribute to this gap, the objectives of phillip 2 this study were to (1) estimate nutrient loss during cropping by comparing the brand pre- and post-burn nutrient budget, (2) assess soil loss according to land slope (6?? and 11??), and (3) evaluate the effect of 2 ash covering the ground in reducing soil erosion. Therefore, assessing the dynamics of soil and nutrient losses at this stage i.e., cropping phase is a key factor in determining nutrient balance to ensure adequate crop yield and the restoration of vegetation and soil fertility during the philippines colonized fallow period. In addition, acknowledging that soil losses occur during the early period of cultivation (i.e., first rains), simple and low-cost tillage practices, such as contour-felled log erosion barriers, can be proposed to help farmers retain some of the nutrients in king 2 the plot. Search our thousands of essays: If this essay isn't quite what you're looking for, why not order your own custom Environmental Studies essay, dissertation or piece of examples of symbolic coursework that answers your exact question? There are UK writers just like me on hand, waiting to help you. Each of phillip 2 us is qualified to a high level in our area of expertise, and we can write you a fully researched, fully referenced complete original answer to your essay question. Just complete our simple order form and philippines colonized, you could have your customised Environmental Studies work in your email box, in as little as 3 hours. This Environmental Studies essay was submitted to us by a student in phillip 2 order to help you with your studies. This page has approximately words. If you use part of aboriginal customary australian legal this page in your own work, you need to king provide a citation, as follows: Essay UK, Essay: Soil and nutrients . Available from: <http://www.essay.uk.com/essays/environmental-studies/essay-soil-and-nutrients/> [30-09-17]. If you are the original author of kill ikemefuna this content and phillip, no longer wish to have it published on our website then please click on the link below to aboriginal customary australian request removal: 08-09-17 - Earthquake forecasting 11-08-17 - Soil management 05-07-17 - Investments in climate change 26-05-17 - Environmental security 23-05-17 - Political ecology 22-05-17 - Liquefied natural gas for maritime transportation 01-05-17 - Quality of water in Witbank 18-02-17 - Potential Environmental Impacts of Textile Waste - Waste management 30-11-16 - Investigation Into Chitosan-Based Coatings Technology. We offer professional custom essay writing, dissertation writing and coursework writing service. Phillip 2? Our work is high quality, plagiarism-free and delivered on time. Essay UK is a trading name of Student Academic Services Limited , a company registered in England and Wales under Company Number 08866484 .
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