The research was carried out in the Bozovici Depression, also called "Almăju Country", located in the western part of Romania. The average annual temperature is 9.30C. During the potato growing season, spring is characterized by an average temperature of 9.70C, summer 18.30C, and autumn 9.40C. The average amount of precipitation, per season, is 163.8 mm in spring, 225.7 mm in summer, and 152.5 mm in autumn. The multiannual average of precipitation varies between 670 – 750 mm. The soil type in the experimental field is a semicarbonate eutric alluvium with a loamy-sandy texture, pH 7.6, a humus content of 2.72% and a degree of base saturation of 97.7%. The experience was bifactorial, in which factor A was the planting period (a1: 10 – 15.III, a2: 20-25.III. a3: 1 – 10.IV.) and factor B – planting density with graduations b1 :55,000; b2.: 60.00; b3: 65.000; b4: 70,000. The variety studied was Gared, from the late maturity group. The synthesis of the harvest results from the three experimental years, depending on the variant studied, had an amplitude between 27,031 kg/ha in the variant in which the planting was done between 1 - 10.IV. with the density of 55,000 nests/ha and between 36,511 kg/ha and 36,474 kg/ha in the version in which the planting was done between 20 and 25.III., with the density of 65,000 and 70,000 nests/ha. On average, on the variants studied, the highest harvests were recorded in the variants when the planting was done between 20 - 25.III. The average planting density over the three planting periods led to the following harvests: 29,240 kg/ha in the variant with 55,000 nests/ha, 31,498 kg/ha in the variant with 60,000 nests/ha, 34,229 kg/ha in the variant with 65,000 nests/ha and 33. 263 kg/ha in the version with 70,000 nests/ha. The starch content in the studied area was between 17.3 and 18.0%. The highest starch production of over 6000 kg/ha was achieved when planting was carried out between 20 and 25.III. with 65,000 nests/ha

potato – the period and density of planting the crop

agronomy

Presentation: poster