The latest course of High-yield cultivation and Management techniques of Purple Potato

Purple potato is one of the common coarse grains, which is more nutritious than ordinary sweet potato, rich in selenium and anthocyanin, and has the effects of anti-fatigue, anti-aging, tonifying blood and anti-cancer. In recent years, it has been favored by people and has a wide planting space, but if you want to have a high yield, all aspects of management are very important. Let's take a look at the high-yield cultivation techniques of purple potato.

1. Select improved varieties

Purple potato has high nutritional value and a wide range of uses, so it is necessary to choose varieties with strong stress resistance, drought and barren resistance and strong resistance to diseases and insect pests. After selecting the planted varieties, the seeds were dried and sprayed with 800-fold liquid of new high-fat membrane, which could not only prevent diseases and insect pests, but also strengthen the respiration of seeds and improve the germination rate.

2. Apply sufficient base fertilizer

Purple potato is suitable to grow on the land with high terrain and convenient drainage and irrigation, and it is best to choose the sandy loam with loose and fertile soil and rich in organic matter. The soil is fully weathered by ploughing 40-50 cm, and base fertilizer is applied during soil preparation. Generally, 1500-2000 kg of rotten farm fertilizer, 20-25 kg of compound fertilizer and 15 kg of potash fertilizer are applied. Farm manure is sprinkled on the ground, chemical fertilizer is applied in ditches, and some sulfur scales are applied at the same time to prevent the harm of underground pests.

3. Strengthen the management

If purple potato wants to achieve high yield, field management is very important, first of all, it is necessary to carry out intermediate ploughing and weeding according to crops, combined with mid-ploughing, soil cultivation, watering and so on. In addition, Titeng should be sprayed after Titeng to thicken the underground fruit transport duct, accelerate the expansion of the fruit, and increase the yield of early fruit. At the same time, we should also pay attention to the prevention and control of diseases and insect pests, although purple potato diseases and insect pests watering, but also can not be careless, underground pests are land tigers, red ants. Topdressing should be applied in time when the plant is growing, if the basal fertilizer is sufficient, not topdressing during the growing period, if the basal fertilizer is insufficient, topdressing 2-3 times in the later stage, and not topdressing when the tuber is enlarged.

4. Timely harvest

The harvest time of purple potato should be grasped well, if harvested too early, the yield will be reduced, while if the harvest is too late, the storage resistance of purple potato will be reduced due to the influence of low temperature and cold injury, and it is very easy to rot and deteriorate, so timely harvest is very important. Generally in the middle and last ten days of October, when the low temperature drops to about 15 degrees, and the tuber has stopped expanding, it can be harvested, and sunny days are recommended for harvest.

The above is the introduction of high-yield cultivation and management techniques of purple potato. I hope it can help you. If you want to know more about it, please follow us.