Research & Development
In March 2023, we did our preliminary research.
Our research question is the effect of different variables during the addition of diapers against plant growth, and we designed three sets of experiments on the growth of ryegrass. After the seedlings are transplanted, uniformly pour the same volume of water into all the potted plants, and no subsequent watering and fertilization. We measure the highest height in each pot of grass every three days for 15 days and calculate the total change in height. In this experiment, the independent variables were the amount of diapers added to soil, the amount of urine in diapers and different dosage methods. By varying the data of the three dependent variables, we investigated their effects on plant growth.
From the experiment we set up we have gotten four important result that supports our innovation
In the experiment involving changing the weight of waster diapers added to a constant mass of soil, the ryegrass grew fastest at 0.4% of diaper-to-soil weight ratio where all diapers are added with same amount of urine inside and mixed thoroughly with soil.
In the experiment involving changing the amount of urine in the waste diapers, the ryegrass grew fastest when 50mL of artificial urine was absorbed by 16g waste diapers (about 30% urine-to-diaper mass) where all diapers are 16g and mixed thoroughly with soil.
In the experiment where the diapers are added to the soil by laying, mixing and mixing (both laying and mixing), there is no significant difference in the change of growth, showing that the dosage method is flexible.
Among all 16 pods of ryegrass, the 13 pods of grass with waste diapers added to the soil as water retention agent has a better growth than 3 pods of control in each separate experiments with no waste diapers added.
