The planting method of Screw vegetable

Screw vegetable is the underground rhizome of Labiatae plant Ganlu Zi, also known as ground silkworm, grass stone silkworm, soil ginseng, because its shape looks like screw to get the name screw vegetable. It is fleshy and tender, and can be marinated into preserved fruit. It tastes excellent and nutritious. Many people like it. Let's take a look at its planting method.

1. Soil preparation and fertilization

The environment adaptability of screw vegetables is strong, cold and heat resistance, under normal circumstances, there are few pests and diseases, like fertilizer but afraid of waterlogging, so planting should choose fertile loose sandy soil, it is best to choose to plant in areas with convenient irrigation and drainage. soil preparation is carry out in autumn of that previous year, tillage is carry out, sun exposure is utilized to reduce overwintering pest source, farm manure of 1500 kg and other compound fertilizer of 100 kg are applied to each mu, and the soil is raked and leveled in early spring of the planting year.

2. Sowing

When planting, the variety is selected according to the local climate and soil conditions; when planting, the tuber propagation is selected; once the sowing time is thawed by 10-15cm, the sowing can be ditched. Sowing depth is 5-7cm, not too deep or too shallow, plant row spacing is controlled at 15×30-45cm, 1-2 tubers with uniform size, no disease and strong are sown in each hole, and soil covering and pressing can be carried out after sowing. Generally, it is controlled at about 1-1.5 plants per mu, and the seed quantity is about 100 kg.

3. Field management

After seedling emergence, intertill and weeding should be carried out. One is to loosen the soil and promote the growth of rhizomes. The other is to avoid weeds affecting the growth of seedlings. It is recommended to pull them out manually. Do not use chemical agents. If it is planted in large areas, less harmful agents can be used. There is also proper cultivation, so as not to expose the stolon, in the tuber expansion period, to stop cultivating, so as not to hurt the tuber, and if the plant grows too vigorously, to properly prune, inhibit its growth.

4. Fertilizer and water management

After applying enough base fertilizer, the later topdressing is mainly quick-acting nitrogen fertilizer. Generally, urea is applied 10 kg per mu in May and June, and topdressing is applied once in July. And to August tuber expansion period, at this time to re-apply expansion fertilizer, in addition to continue to apply urea, but also apply phosphorus and potassium fertilizer, 30 kg diammonium phosphate per mu, so as to avoid premature aging of plants, accelerate tuber expansion. For water management is relatively simple, watering can be done in drought, but do not irrigate in summer, and timely drainage in rainy season to prevent waterlogging, so as not to rot roots.

The above is the cultivation method of screw vegetables, hope to help you, want to know more about planting knowledge, please pay attention to us.