Crop Rotation Experiment was established on experimental facilities of the Institute for Engineering and Environmental Problems in Agricultural Production – branch of Agro-Engineering Centre VIM. Saint-Petersburg. The objective of the study was to consider the requirements for growing organic potatoes. In an experiment with potatoes (Solánum tuberosum) variety Udacha. https://fitnessgravesyardes.shop/product-category/cam-pulley-assembly/