Opinion: In the last 20 years, dairy cows have doubled, to more than 6 million. Farms have been converted to dairy for other uses. The hoarding rate has increased.
Feeding all the extra cows means cultivating as much grass as possible, often using nitrogen-based fertilizers.
Any excess fertilizer escapes from the ground or reaches the groundwater. It is important to use enough at the right time to minimize water pollution. It requires a good understanding of soil, weather, climate and animal husbandry to perform well.
* An important means of handling field pollution is failing by observers.
* Scientists say major flaw in farming water quality tool.
* Farm Pollution Measurement System Needs Optimization: Upton.
Scientists use models to find out what farmers can do to reduce pollution. These models assess weather, water flow, grazing strategies and their timing. They then use fertilizers and how much pollution they get from animals, then work on ways to reduce it.
What is happening takes some very complex mathematics to shape the interaction of animals, soil, weather and the earth. These mathematical models describe all of these factors and their interactions, to help identify the activities that pose the greatest risks, so that farmers can change what they do to reduce those risks. To be able to
This complex math is done by people who specialize in system modeling. Unfortunately, mathematical processes are used overseas. Adopted a simple method that did not cover system interactions and could not accurately pinpoint the key dynamics of these pollution issues. For example, if there is light rain in the field, it will have a very different effect on the flow than heavy rain on dry soil.
Other design errors in Overseas seem to seriously affect the results it produces.
In the caretaker, Key science Science hasn’t come together as expected – a problem that was never tackled when it was first developed in the 1990s. Only. Completely independent review of the entire supervisor. (Just released) It turned out that his point of view was not evaluated by an experimenter. Free System Moderators
Any tool used to control farm track must be transparent about how it works and what assumptions it makes. Overseas is a privately owned system and until this review, the ‘secret sauce’ was firmly entrenched within the company. Of great concern is that the overseer, despite now being shown to be highly incompetent for the purpose, has been used to control agricultural pollution.
Now we need to develop an alternative that uses mathematics to handle the fact that the field, land and climate interact in dynamic ways. Such a model would provide more accurate information to help farmers improve their practices.
Tony Pleasant is an assistant professor of agricultural analysis at Macy’s University. Bridget Robson Island is an environmental consultant in 2017. Stephen Taylor is a Senior Lecturer in Applied Mathematics at the University of Auckland. Graeme Week is an adjunct professor of industrial mathematics at Auckland University of Technology.