O‘TA ERTAGI KARTOSHKADAN YUQORI HOSILI OLISH AGROTEXNOLOGIYASINING NAV, EKISH MUDDATI VA MULCHALASHGA BOG’LIQLIGI

The article presents the results of studying 29 early and medium-early potato varieties cultivated as an ultra-early crop, evaluating their growth, plant formation, and yield performance, ultimately identifying adaptive, high-yielding varieties. It was revealed that cultivating the adaptive varieties Sylvana, Saviola, and Evolution under various planting dates and soil mulching methods—specifically planting from the second half of January to the first decade of February combined with mulching using 3–4 t/ha of manure and transparent plastic film—positively affects plant height (74.6–87.0 cm) and the formation of an optimal leaf surface area (0.74–0.84 m2), contributing to the highest recorded yield (28–30 t/ha and above).