-With the expansion of areas of sugarcane cultivation, mechanised fertilisation is essential for providing improved operational performance, optimising the supply of nutrients and increasing productivity. However, this type of fertilisation may present deficiencies in the area of distribution, such as fluidity, separation, and particle size, among others. A new concept in fertilisation is therefore being developed, capable of carrying out the individual application of nitrogen, phosphorus and potassium, distributing these in various doses, with greater efficiency of application, employing precision farming and variable rates. The aim of this study was to evaluate the quality of the individual mechanised fertilisation of NPK in ratoon cane by means of Statistical Quality Control -SQC. The experiment was carried out in the city of Matão, in the State of São Paulo, with the experimental area making up part of the Cascavel Farm. The experimental design was based on the basic premise of spatial SQC, monitoring the individual mechanised fertilisation of NPK at 30 sampling points. For this treatment, the lots were composed of six rows of sugarcane, spaced 1.5 m apart, with an effective area of 1,571 m 2 . There was a sampling point every 30 m, where fertiliser was collected for 5 seconds. The helical metering system especially affected operational quality, as this was inefficient in its distribution. It was concluded that, due to adjustment of the helical metering system, individual application resulted in doses above those recommended for all fertilisers. Nitrogen (protected urea) showed the greatest variability in distribution, whereas phosphorus (MAP) displayed the highest operating quality due to the lower recommended volume.Key words: Statistical process control. Mechanised agriculture. Saccharum spp.RESUMO -Com a expansão de áreas de cultivo de cana-de-açúcar, a adubação mecanizada mostra-se fundamental por proporcionar maior desempenho operacional, otimização do fornecimento de nutrientes, aumento da produtividade. Porém, esta adubação pode apresentar algumas deficiências na distribuição, tais como, fluidez, segregação, granulometria, entre outros. Assim, está sendo desenvolvido um novo conceito de adubação, capaz de realizar aplicação individualizada de nitrogênio, fósforo e potássio, distribuindo-os com diferentes dosagens; maior eficiência de aplicação; utilização da agricultura de precisão e taxa variável. Objetivou-se com este trabalho avaliar a qualidade da adubação mecanizada individualizada de NPK em cana-soca por meio do Controle Estatístico de Qualidade -CEQ. O experimento foi desenvolvido no município de Matão, São Paulo. A área experimental pertence à Fazenda Cascavel. O delineamento experimental foi baseado nas premissas básicas do CEQ ao longo do espaço, monitorando a adubação mecanizada individualizada de NPK em 30 pontos amostrais. As parcelas desse tratamento foram compostas por seis linhas de cana-de-açúcar, espaçamento entrelinhas de 1,5 m, área útil 1.571 m² e a cada 30 m coletou-se ...