Management practices factors

The various PIFs discussed so far provide a basis for the control of human error at the level of the individual. This section will consider various factors related to the performance of the team and the management practices related to safety. 

In addition to the interactions between plants and microorganisms, a third factor, the soil, also plays a role in determining root exudation and the activity and diversity of rhizosphere microbial populations. In this section, physical and structural aspects of the soil are discussed in relation to their effects on root exudation and microbial populations. Consideration is also given to the role of agricultural management practices on rhizosphere processes. In addition, the role of other biotic factors, such as microfaunal predation, is discussed in relation to nutrient cycling in the rhizosphere. 

Surveys of mycotoxin contamination levels in organic and conventional crops often give conflicting results and will therefore not be described in detail here. They often poorly describe the management history of samples included in the survey and may therefore be misleading with respect to the causes of differential mycotoxin loads. Also, the contribution made by primary production practices/factors and storage conditions to overall mycotoxin loads were unclear for most of these studies. 

Contributing Cause—Factors that facilitate the occurrence of an incident such as physical conditions and management practices. (Also known... 

By using renewable carbon from biomass, an improvement in the CO2 balance can be achieved. However, significant effects beyond the impacts on greenhouse gas emissions are possible, e.g., soil modification, eutrophication, impact on biodiversity, land requirements and water consumption. These aspects depend on different factors like feedstock type, scale of production, cultivation and land-management practices, location and downstream processing routes. The environmental implications of agriculture are sometimes difficult to assess by the LCA methodology and require further research. 

There are additional miscellaneous factors which impinge on the worker reentry process, the most important being crop, pest management practices, work practices, and labor relations. 

Specific management practices influence triazine runoff and leaching, including fertilizer type, tillage crop residues, and previous crop history, as well as triazine application, formulation, and placement (Baker and Mickelson, 1994). Tillage systems affect various soil properties, such as soil moisture, temperature, pH, organic matter, water flow, and microbial populations, especially at and near the soil surface. These factors can affect transformation, retention, and transport of herbicides in soil. Interactions of and compensations between these processes can influence our prediction of triazine transport in soil. Therefore, triazine movement is usually studied under one management practice at a time. 

Variation in Cover-Management Factors for Continuous Corn and Continuous Winter Wheat Rotation for Conventional, Reduced/Mulch, and No-Till Field-Management Practices in Brown County, Kansas... 

Figure 2.9 illustrates how risk management interlinks policy, regulatory rules, risk management practice and risk-reduction strategies. Each factor directly or indirectly influences the others. Descriptions of the four factors involved at a national level are provided in Appendix 2.4. 

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