Detailed Explanation of Welsh Onion Planting Techniques and Field Management Methods
Welsh onion is a biennial plant of the Liliaceae family, and there are now a great many varieties of Welsh onion in China. Market demand is greatest in the northwest region, and Welsh onion holds a pivotal position among vegetables in China, with its planting area reaching 1/10 of the total vegetable area and relatively high economic returns. So how should Welsh onion be planted? Below, the editor brings you the planting techniques for Welsh onion. Let's take a look!
1. Land selection and soil preparation
The root growth capacity of Welsh onion is relatively weak, and when soil is hilled up during planting, the distribution goes relatively deep. Therefore, ensuring the soil is sufficiently permeable is something we need to pay attention to when planting. It is necessary to ensure the planting soil is sufficiently deep and highly permeable. In many places, the reason Welsh onion yields are not high enough is mainly that the soil layer is too shallow, causing the Welsh onion roots to extend beyond the cultivated layer, which affects growth and leads to severe pest and disease damage. So after selecting the land, we must deep-plow it to at least about 30 cm to improve soil permeability, and then apply sufficient base fertilizer, mainly decomposed farmyard manure..
2. Sowing and raising seedlings
Welsh onion seeds are relatively small, and the seed coat is relatively hard, so the growth rate of Welsh onion seedlings during the seedling stage is relatively slow. Therefore, before sowing, we should finely level the seedbed, water it thoroughly, and after the water seeps into the soil, broadcast the seeds evenly over the entire area. After sowing, cover with soil and film to improve the soil's heat and moisture retention capacity. After sowing, keep the temperature at around 20 degrees, and seedlings will emerge in about a week. When half of the seeds have emerged, remove the plastic film; this must not be done too late, otherwise it will reduce the vigor of the seedlings. After the seedlings spread out, water once, and then water appropriately according to soil moisture conditions. Do not water too much, to prevent the soil, and about two topdressings are needed throughout the seedling autumn.
3. Timely hilling of soil
Hilling soil is very important for the growth of Welsh onion, and generally it needs to be done after watering and fertilizing. Control the intensity according to the growth time of the Welsh onion; in the early stage, do not hill the soil too tightly, as this reduces soil permeability. It can very easily lead to undesirable phenomena such as thin and weak scallion white stems and dead seedlings, reducing the commercial value of the Welsh onion. During the Welsh onion growth period, soil should be hilled at least about 5 times, and the last time is to improve the wind resistance of the Welsh onion and prevent lodging. After hilling the soil, also pay attention to doing good disease prevention work, enhancing the disease resistance of the Welsh onion, and avoiding pest and disease damage.
4. Field management
Water and fertilizer are indispensable substances in the growth process of Welsh onion, though they are relatively important. However, attention must also be paid to the amount; too much fertilizer can easily cause fertilizer damage to Welsh onion and reduce yield. Too much water is the same, easily causing root rot in Welsh onion and triggering various pests and diseases. We should carry out water and fertilizer work reasonably according to soil conditions, weather, and the actual growth situation of the Welsh onion. Finally, the harvest time should be determined according to the Welsh onion variety planted; if early-maturing varieties are harvested too late, it can easily lead to freezing damage to the Welsh onion, whereas if late-maturing varieties are harvested too early, it will affect yield.
The above is a brief introduction to Welsh onion planting techniques. The planting techniques for Welsh onion are relatively simple. Management is also relatively extensive, but attention must still be paid to doing good pest and disease control work. Otherwise, it will have a great impact on yield and quality, reducing planting returns. That is all for today's introduction. This article is for reference only. Thank you for reading and supporting.