Concept Of Urine as Fertilizer-Part 1

With this paper i must now consider the environment

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With this paper, I must now consider the environment of each urine donor that I plan to use. If the level of carbon dioxide in urine affects the pH level then the urine samples I collect could have some other decision factors in its effectiveness in fertilizing the sunflower. I plan to use this resource in my current section of my literature review. Mnkeni, P. N. S., Kutu, F. R., Muchaonyerwa, P., & Austin, L. M. (2008). Evaluation of human urine as a source of nutrients for selected vegetables and maize under tunnel house conditions in the Eastern Cape, South Africa. Waste Management & Research, 26(2), 132- 139.
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The authors who are researchers in South Africa, conducted an experiment to evaluate the fertilizer value (0 to 400 kg N ha—1 ) for human urine in maize and tomatoes compared to urea. They hypothesized that since urine is the purest form of human waste and urea is a substance broken down from urine, urine will have the highest fertilizer value. Their hypothesis proved to be true. The maize and tomatoes that was fertilized with urine had an increased in N rate to 200 kg N ha. The maize and tomatoes fertilized with urea had a decrease in soil electrical conductivity. The researchers also carried out additional work to contrast sensitivity to salinity and use a wider range of N application (0 to 800 kg N ha—1). Generally the results showed that human urea compared well with urine as a source of nitrogen for crops but ideal rates depend on the sensitivity of the crops to soil salinity, which should be something taken to consideration when human urine is used to fertilize crops.
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