Planting Technology of Potato in greenhouse

Potato is a common crop with high planting value and good economic benefits. At present, growing potatoes in greenhouse has been widely used. Next, the editor will bring you the sharing of potato planting techniques in the greenhouse.

I. seed selection and plot selection

All potatoes left behind should be harvested when the plant is in bloom (late April). After harvest, choose cool, ventilated and paved in the attic to strictly prevent snow falling on the ground and rodent damage. High-quality seeds were selected and mixed with new high-fat membrane to isolate diseases and insect pests and improve germination rate. Choose the sandy soil with flat terrain, convenient drainage and irrigation, loose soil quality and good permeability, and the fields that have not planted Solanaceae crops or rice in the previous stubble are the best.

II. Soil preparation, fertilization and shed-building

Turn the soil deeply before sowing, apply enough basic fertilizer, and open the ditches, waist ditches and intershed ditches for operation, drainage and irrigation. If you use the land planted in the original shed, add new high-fat film with quicklime, and then sow seeds after sterilization in the shed.

Third, sow seeds at the right time

20 days before sowing, the potato seeds are taken out to sprout, generally the plant spacing is 20~24cm, the row spacing is about 60cm, and the oblique holes are dug. When sowing, put the germinated potato seeds about 7cm in the center of the hole, and the depth depends on the length of the potato buds. After the seedlings are sown into the hole, they are covered with nutritious soil, and the thickness of the soil cover is suitable for no sprouts. The soil moisture is preserved by spraying new high-fat film on the surface to prevent the soil from forming plates and improve the seedling emergence rate.

IV. Fertilizer and water management

It is necessary to keep the soil temperature and humidity in the greenhouse for about 10 days before sowing and promoting the emergence of seedlings. When the emergence of seedlings is more than 70%, the air will start to cool down. Generally, all the seedlings can be produced 10-15 days after sowing. After emergence, choose sunny days to loosen the soil, cultivate soil and ridge, and timely watering, ploughing and weeding, and reasonable fertilization. In order to effectively control the wild growth of branches and leaves in the upper layer of the surface, accelerate the super-rapid expansion of underground tubers, enhance the ability to resist insect pests, and ensure the high quality, high efficiency and good harvest of potatoes, Di Guo Zhuang Diling should be sprayed at the right time before flowering, tuber formation and expansion, so as to effectively control the wild growth of branches and leaves in the upper layer of the ground, enhance the ability of resistance to insect pests and ensure the high quality, high efficiency and good harvest of potatoes.

Prevention and control of diseases and insect pests

Appropriate amount of phoxim plus new high-fat membrane was used to control underground pests during sowing or before tuber formation. For aphids, 28 ladybugs, early blight, late blight and other diseases and insect pests should be sprayed in accordance with the requirements of plant protection, while spraying new high lipid membrane 800times liquid to enhance the efficacy.

Compared with planting in open field, greenhouse potatoes have better quality and yield, but we should pay attention to daily management.