PRODUCTIVITY OF CHINESE MUSTARD DEPENDING ON THE TERMS OF SOWING AND FERTILIZERS APPLIED IN THE PROCESS OF ITS GROWING
The purpose of the research was to study the effect of various sowing terms and fertilizers applied on the productivity of Chinese mustard of the Tavrichanka variety. It has been established that the maximum yield of Chinese mustard was obtained as result of trials conducted in February and in the third decade of March (when the soil in the 5cm layer was warmed up to 4-6°C). When sown in later periods the mustard crop yield was reduced. It was also observed that the Chinese mustard demonstrated positive response to the use of mineral fertilizers, which were applied in the complete doze (N60P60) in autumn with the basic soil treatment, while with fertilization in later time periods the crop yields were reduced. As result of studies conducted, it is proved that to obtain maximum yields of Chinese mustard seeds under arid conditions of the Crimea, the fertilizers are to be applied in the autumn period and the crop sowing should be conducted in February and when the soil temperature is 4-6°C.