Productivity of flax seeds and its development depending on sowing dates in rainfed lands of the Gissar valley in Tajikistan

The research proved that a high yield of seeds, especially of oil flax, can be obtained in the conditions of drylands (non-irrigated area) in case of compliance with agricultural practices. The results of field experiment revealed that in the rainfed lands of the Central Tajikistan with more than 600 mm of precipitation, the main element of agricultural technology is the determination of the optimal dates for sowing of oil flax. The article presents the results of research on the development of technology for cultivation of oil flax, in particular, the sowing dates under conditions of the rainfed lands of the Gissar valley. We established that under conditions of rainfed lands of the Gissar zone, the optimal sowing date of oil flax in winter is the third part of February and in the spring - the first part of March, which ensures a stable seed yield. The sowing of oil flax under conditions of rainfed Gissar zone of the Central Tajikistan, depending on the conditions of the year, is recommended in the late February-early March in order to obtain high yields of seeds and vegetable oil to improve the life of the population.