Can Jerusalem artichoke be planted in winter? (When is the best time to plant ginger in winter?)

You can plant Jerusalem artichoke in winter, and Jerusalem artichoke can survive the winter in the ground. Jerusalem artichoke seedlings can withstand low temperatures of 1-2°C, and mature seedlings can survive the winter in frozen soil at -25-30°C, so it can be planted as long as it is not particularly cold in late winter. Jerusalem artichoke has very low requirements for planting environment conditions, and the planting method is also very simple. It does not require too much management and care.

Jerusalem Jerusalem artichoke, also known as Jerusalem artichoke, is a perennial herbaceous plant. Its economic value is very high and it has broad development prospects. Let’s take a closer look at Jerusalem artichoke planting techniques and the best planting time.

When to plant Jerusalem artichoke

Jerusalem artichoke can survive the winter in the frozen soil layer of -25-30℃, and the seedlings can withstand low temperatures of 1-2℃. Therefore Jerusalem artichoke can survive the winter in the ground, so Jerusalem artichoke can be planted in winter.

However, it is not recommended to plant it in late winter, especially in the north where the temperature is too low and is not suitable for its growth. Generally, the best sowing time for Jerusalem artichoke is in late autumn and early spring, so autumn is more suitable for planting Jerusalem artichoke.

Jerusalem artichoke propagates by tubers, producing a large number of tubers of varying sizes every year. Large tubers are used for commercial products, while small ones are used as seeds. Generally, 20-25 grams of tubers are used as seeds.

In plots where Jerusalem artichoke has been planted, a large number of small tubers will remain. There is no need to sow seeds to ensure full seedlings in the second year, but thinning is also required to ensure a reasonable density.

Cultivation techniques and methods of Jerusalem artichoke

Plot selection

Jerusalem artichoke does not have strict soil requirements and cannot be grown in acidic soil. It does not grow well in swamps and saline-alkali lands, and has the highest yield in sandy loam soils with deep soil layers. Jerusalem artichoke is shade-tolerant and can be cultivated under the shade of trees and in relatively cool places. It is generally cultivated sporadically.

Sowing method

①Basic fertilizer

Apply more than 2,000 kilograms of decomposed farmyard manure and 30-40 kilograms of ternary compound fertilizer per acre. After deep plowing, the soil is prepared, and Jerusalem artichoke tubers are planted in holes or drilled.

②Row-to-plant spacing

In terms of planting spacing, the spacing between plants and rows should be kept between 30-50 cm, and the sowing depth should be about 10 cm. Watering is required when the humidity is low, which is conducive to ensuring Whole seedlings.

Field management

① Dormant period

Jerusalem artichoke begins to germinate at 2-6°C and begins to emerge at 8-10°C. When the temperature is between 15-25°C, the tubers enter a period of rapid expansion. After the frost, the above-ground parts die and enter the dormant period. At this time, they can be harvested.

Start watering after the seedlings are planted, and apply nitrogen fertilizer once in conjunction with watering. Apply nitrogen fertilizer and potassium fertilizer once during the budding stage, and cut off the top in time to help the tubers expand.

②Growth period

During the growth period, keep the soil moisture between dry and wet, and no watering is required unless it is too dry. Watering during the period of rapid tuber expansion can significantly increase yield. After emergence, weeds should be pulled out promptly and cultivated to cultivate the soil to reduce nutrient waste.

③Pests and diseases

Jerusalem artichoke has very few pests and diseases. If aphids appear, you can prepare homemade pesticides such as tobacco stem water and urea washing powder water, and then spray the leaves to control the damage. Increasing field humidity can reduce aphid damage.

④Harvest period

The harvest period of Jerusalem artichoke is from late autumn to before the soil thaws. If the temperature exceeds 2℃, it will germinate, affecting the yield and quality. It can be harvested and used at any time, or it can be harvested once and stored later.

Jerusalem artichoke is not afraid of cold during the dormant period. You only need to dig a hole and bury it in it, cover it with a layer of soil and pour a little water.