Carbonized rice hull as fertilizer and soil conditioner for growing tomato (Solanum lycopersicum); A comparative study (RECOMMENDATIONS)

    The purpose of this study was to compare the effectiveness of carbonized rice hulls as a fertilizer and soil conditioner for growing tomatoes and to determine which of the three application methods - top, mix, and middle - was most effective in promoting plant growth in terms of height, number of leaves, and growth rate. In addition, the study examined the potential nutrient deficiencies that could affect the growth of tomato plants.

    To conduct the study, carbonized rice hulls were collected from Los Baños, Laguna, and used as fertilizer in the experimental group of tomato plants, while the control group was left without any fertilizer. The experimental group was divided into three subgroups with different application methods: the carbonized rice hull was applied on top of the soil in subgroup one, mixed with the soil in subgroup two, and applied in the middle section of the soil in subgroup three.

    One of the main benefits of using carbonized rice hulls as an organic fertilizer is that it contains essential nutrients such as phosphorus, potassium, calcium, magnesium, and micronutrients that are necessary for crop growth. However, the study's results showed that the plants exhibited signs of nutrient deficiencies, which is not ideal for tomato plant growth. Therefore, the study recommends increasing the amount of fertilizer and soil applied to the plant and watering the plant directly into the soil rather than on the leaves. Watering the leaves can cause nutrient deficiency and increase the risk of pest infestation, which can harm the plant. Pest control measures are also recommended, and covering the plant can protect it from pests and other harmful elements. Moreover, lightly watering the plants during rainy weather can help keep the plant healthy and prevent overwatering, which can be detrimental to plant growth. Finally, the study suggests using cardboard egg trays for germinating seeds as a cost-effective and environmentally friendly way to support tomato plant research.