(l) Appropriate late sowing of the autumn potato in the early autumn in late summer, with high temperatures and frequent showers, often resulting in bad seedlings. Therefore, under the condition that a sufficient period of growth is ensured before the onset of local frost, it is appropriate to postpone sowing so that the early-warming period will be avoided during the growth period, and this will be effective in reducing rotten species. In the area from late August to early September in the region of Jiangsu and Zhejiang, the temperature in the mountains was lower, and earlier in the season, so that in the early growth period, the plants grew vigorously in the cooler months of October, while the tuber formation and the hypertrophy were lower in the later period. In November, it was in line with the physiological characteristics of the potato, with multiple tubers, high yield, and good seeding.

(2) Ground cover, cooling and moisturizing sowing, the surface temperature of the topsoil is usually above 35°C. It is not suitable for the growth of young shoots. If the weather is dry during the soil preparation, the water should be soaked for 2-3 days before sowing to make the soil wet. , plowing and soil preparation to keep the soil moist, sowing in the morning and evening sowing, after covering the soil cover melon vines, grass or straw and other objects, can play a cool shade, prevent drought and moisturizing and prevent shower erosion, soil compaction, so that the emergence of Fast and homogeneous.

Vitamin

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