INFLUENCE OF SOWING DATES AND RATES OF MINERAL FERTILIZERS ON THE PHOTOSYNTHETIC POTENTIAL OF WINTER BARLEY VARIETIES

Аннотация

The photosynthetic activity, leaf surface, photosynthetic potential of winter barley varieties Mavlonoa and alternate Bolgali were studied, depending on the timing of planting and fertilization rates. While the optimal sowing period is earlier or later than 15 October, the photosynthetic potential of the winter varieties Mavlono and alternate variety Bolgali decreased, and an increase in the amount of nitrogen fertilizers from 60 to 180 per hectare increased this figure.