1, planting time
Potatoes are planted in most areas in spring from February to March, and the specific time varies due to the temperature difference between north and south. In the northeast and northwest regions such as Gansu and Qinghai, the spring sowing time is from mid-late April to early May; Jiangsu, Zhejiang and other south-central provinces1-February; The autumn planting time in Guangdong, Guangxi, Hainan, Yunnan, Guizhou and other places is from the middle and late June 5438+ 10 to June 5438+065438+ 10.
2. Land selection
Potatoes are not suitable for continuous cropping. In order to ensure the growth, yield and quality of potatoes, it is best to choose plots where potatoes have not been planted for nearly 2-3 years. In addition, sandy land with loose and permeable soil, deep and fertile soil layer and high organic matter content should be selected, which is more conducive to the development and expansion of underground potato blocks and the increase of yield in the later stage.
3. Potato seed treatment
Potatoes should be taken out ten days before sowing, germinated at a certain temperature, and then when most of the buds of potato seeds grow to the length of fingernails, they can be moved outdoors for a week, and the potatoes can be cut and sown where there are buds. A potato can be cut into three or four pieces according to the germination situation, and then it can be used for sowing with some dust.
Step 4: Sowing.
Potatoes can be planted on flat land or ridges. In the sowing method, the soil should be deeply ploughed 15-20 days in advance, and the ploughing depth is about 25-30 cm.
5, timely bud removal
Generally, when there are about 1/4- 1/3 plants in the field, the buds should be picked in time. After picking buds for the first time, pick buds every 3-4 days. Generally, all potato buds in the field can be picked for 2-3 times.