Determinação da concentração de clorofila: projeto eletrônico e validação de modelo matemático aplicado a pimenta Capsicum chinense

Abstract

The chlorophyll meter is an important electronic equipment used to obtain the chlorophyll content, this information is important for professionals in the agricultural area, because with the chlorophyll content it is possible to obtain an estimate of the amount of nitrogen fertilizer it is necessary to apply in the plantation. Although there are several studies validating the use of the chlorophyll meter, it is difficult to find studies that present specific information about its development, where an important step to be considered for its construction is the processing of the signal obtained at the entrance of the system. In this way, an equipment capable of acquiring and processing the signals in the input system was developed, obtaining the chlorophyll concentration, non-invasively, in a sample of the puffed pepper leaf (Capsicum chinense), only inserting the sheet between the instrument’s reading instrument. Laboratory tests were performed to use as a comparative reference with the results obtained through the equipment developed in this work (chlorophyll meter).