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The article provides data on the influence of the norm and timing of sowing on field germination, development phases and yields of local durum wheat “Istiklol”.
Sowing measures and fertilizing norms can be considered as important factors that influence amount of yield and quality of produced wheat.
According to the results of the experiment, the amount of yield with 4,5 million seeds per hectare with fertilizers NPK 180:135:90 kg/ha accounted for 76,6 cwt/ha per plot of the field, which is 44,0 cwt/ha more than in control without fertilizer lands, and 9,9 cwt/ha more in sowing norm. The lowest yield accounted for 57,0 cwt/ha in the plot of the field where 3,0 million seeds/ha with fertilizing norm of NPK 120:135:90 kg/ha where sown, which is 28,3 cwt/ha more than in fertilizer free lands. In the plot of the fields where the sowing norm was equal to 3,0 million seeds, the fertility of plants was high, crop was collected from plants that grew later, the grain and seeds were of smaller size and it led to the decrease of yield.