Potatoes are a grateful, productive crop, perfect for both gardens and pots; with good management, it is common for them to 1 kg of seed potatoes are obtained more than 10 kg of potatoes, although yield varies depending on the variety, soil type, and care. Below, you'll find a complete and practical guide with approximate dates according to climate, land preparation, step by step of sowing, irrigation, pest control, recommended associations, harvesting, and preservation. It also combines traditional techniques and technical criteria to achieve a bountiful and healthy harvest.
When can potatoes be planted?
The potato prefers a cool, frost-free environment. Outdoors, the most suitable time to sow is the early springWhen the risk of frost has passed, nighttime temperatures do not drop below 7°C and the soil temperature is around 10°C. In climates with mild winters, sowing can also be done in autumn or late summer, with a harvest in winter or early spring.
If you grow in greenhouse Or with protection, you can plant earlier and extend the cycle, always ensuring moderate temperatures during tuberization. In cold areas, the use of thermal blankets or heating systems can facilitate an earlier crop.
Sowing calendar according to crop types
Planting windows vary depending on the climate and region. Here's a general guide to planning your crop:
- Extra early: Sow between September and October, with harvest between December and April, ideal for areas with mild winters and additional protection.
- Early: sow in December or January, harvesting between April and June.
- Half season: sow in February or March, harvest in summer.
- Late: sown in summer, harvested in autumn and winter, useful for storing tubers.
Choose your planting window based on your local climate, adjusting for protection in cold areas or avoiding extreme temperatures in warm regions.
Climate, soil and light requirements
The potato requires a cold-temperate climate with temperatures between 13 ºC and 18 ºC, since temperatures that are too high or too low delay their growth and promote diseases. It needs a well-drained, loose soil with a loamy or sandy-loam texture, with a pH between 5,5 and 8. It is important to avoid compact and waterlogged soils that can damage the roots and tubers.
Light affects it directly: with short days tuberization is favored and with long days vegetation. Each variety has its own critical photoperiod, so adapt the sowing date to your latitude to obtain better yields.
In terms of nutrition, the potato demands potassiumAvoid fertilizers with excess chloride If you notice necrosis on the leaves. To preserve them, the tubers need oxygen and a dark, ventilated environment to avoid problems such as black heart disease; store in places with good air circulation and away from direct light.
How to prepare potato seeds
To sow, use sprouted tubers with 1-2 cm sprouts. It is advisable to purchase certified seeds to avoid disease. If the tubers are large, cut them into 2-3 pieces, leaving at least 2 yolks on each piece. Let them heal for 2-3 days before planting to reduce the risk of rot and pests.
Soil preparation and planting step by step
- Tilling and preparing the soil: Break up the ground until you get a loose soil, enriched with compost, mature manure or earthworm humusA prior soil analysis helps to adjust NPK and nutrients.
- Prepare the seedIf you use large tubers, cut them into 2-3 parts with at least 2 buds each, letting the cuts heal for 2 days in a dry and ventilated place.
- Make the trench and provide initial moistureDig a trench approximately 7 cm deep and 25 cm wide. Water twice and allow the water to seep through, ensuring sufficient moisture in the soil. Place the seed pieces about 25–30 cm apart in the trench, covering them with about 5 cm of soil.
In regions with very hot summers, planting in raised furrows or ridges may be advisable to promote cooling and good tuberization.
