Justification of machine parameters for ridge forming with simultaneous application of fertilizers

The technologies used to prepare the soil for sowing cotton seeds in Uzbekistan have a number of significant drawbacks. Therefore, reducing labour and energy costs, as well as saving resources when cultivating crops based on advanced technologies and developing high-performance agricultural machines is of current interest. The aim of this study is to substantiate the machine parameters for forming ridges in the cotton fields with a simultaneous application of fertilizers. New technology has been developed for the formation of ridges with a simultaneous application of fertilizer in the fields with harvested cotton stalks, which loosens the soil in the middle of existing furrows of the cotton-plant, loosening the existing ridge with simultaneous application of fertilizers and forming new ridges in their place in one pass. An improved chisel – cultivator – fertilizer with ridge – forming agents were developed to implement the proposed technology. It has been established that the formation of a high – quality ridge is ensured with local fertilizer application along with a sowing line of a required degree with the following relative positions of the machine's working bodies: a minimum longitudinal distance from the cultivator to the support wheel is 20 cm, a minimum longitudinal distance of the ridge former to the cultivator coulter is 31.3 cm, the distance between adjacent rippers 60 or 90 cm, the transverse distance from the cultivator to the support wheel is 30 or 45 cm.