BITS Faculty Publications

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    Fertilizer monitoring using micromachined cantilever
    (Agricultural Science & Technology, 2019-09) Rao, Venkatesh K.P.
    In this study, we will create a grid of micro electro-mechanical (MEMS) sensors, which will measure the contents of soil, especially urea. This will inform the farmers about the condition of soil in real time, and thus allowing them to know how much fertilizer they need to add. MEMS sensor is placed in the soil to measure the soil content by chemical reaction with the fertilizers; its accuracy can be improved if these sensors are placed on multiple points, i.e., they are placed in a grid. In the present study, we designed micro-cantilever based gas detectors, to detect ammonia present in the fertilizers. Several designs were proposed to find the best fit for this purpose. Numerical studies have been carried out on the proposed designs, to evaluate the displacement sensitivity and the voltage developed in the piezoelectric layer, and the triangular cantilever was found to be the most sensitive cantilever for that purpose
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    Impact of Seed Type and Fertilizer on Pearl Millet Yield: A Descriptive Study in Selected Districts of Rajasthan
    (Taylor & Francis, 2023) Routroy, Srikanta; Sharma, Satyendra Kumar
    Various input factors for cultivation practices are adopted in the upstream supply chain such as seed quality, fertilizer use, rainfall, temperature and farmer awareness play an important role to maximize the pearl millet yield. A survey questionnaire was developed considering these factors and 473 farmer responses were collected from the semi-arid zone of Rajasthan. The adoption of different seed types for pearl millet are 77% (Desi), 22% (Hybrid), and 0.40%(both). Whereas the fertilizers usage is 67.44% (Organic), 5.50% (Inorganic), 19.66% (Both), and 7.40% (Not used). These factors have an impact on the yield of pearl millet. Therefore, there is a need to inform the benefits of hybrid seeds among the farmer through incentive schemes and various stakeholders such as SHGs (Self-Help Groups) for its increased adoption. Also, government should take steps so that marginal farmers can use both organic and inorganic fertilizers depending upon their cultivated land. The findings of the current research will be useful for the policy maker to develop different policies related to pearl millet and Stover yield and will be a valuable addition to the upstream pearl millet supply chain in specific.
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    Utilization of Industrial Waste as a fertilizer in Ornamental Plants
    (RJCE, 2017) Verma, Sanjay Kumar; Gupta, Rajiv; Singhal, Anupam; Devi, Anuradha
    ndustrial waste treatment and its disposal are the major challenges in developing countries. In India, approximately 960 million tonnes of waste are generated annually. Metallurgical industries generate about 39.5 million tonnes of inorganic waste which contains heavy metals. Moreover, metallurgical waste treatment and disposal are the main concerns of researchers. In the present study, steel industry pickling sludge and copper industry tailing waste are used as fertilizer in plantation of oleander plant. The log of plant study shows that the copper tailing and pickling sludge mixture generate promising results. Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) studies the effect of heavy metals in plants uptakes. Barium (Ba) is present in the soil of study area and the plant uptake Ba as a contaminant. It has been observed that Ba content is reduced by 90%, therefore Ba contamination can be reduced by uptake in oleander plant. Uptake of other heavy metals is immaterial.