Allium ramosum is a type of onion plant. Its rhizome epidermis is mostly red or white, with a delicious taste. It can be eaten fresh or pickled. It is highly adaptable but has high requirements for sunlight and soil. This article will detail the planting techniques of Allium ramosum, covering aspects such as site selection and land preparation, sowing, field management, pest and disease control, and harvesting.

　　I. Site Selection and Land Preparation

　　Allium ramosum prefers sunny locations with deep, loose, fertile, and well-drained soil. Before planting, sandy loam that has not been planted with liliaceous allium crops for more than three consecutive years should be selected to avoid the accumulation of pests and diseases caused by continuous cropping. Previous crops can be non-liliaceous crops such as sesame, soybean, or peanut.

　　Before sowing, the land needs to be deeply plowed to a depth of 25-30 centimeters, and sufficient base fertilizer should be applied. The base fertilizer should mainly consist of fully decomposed farmyard manure, with an application rate of 2000-3000 kilograms per mu, along with an appropriate amount of phosphorus and potassium fertilizers to promote the growth of Allium ramosum. After deep plowing, level the land and create beds 1.5-2 meters wide to facilitate the growth and management of Allium ramosum.

　　II. Sowing

　　Allium ramosum can be sown in spring or autumn. Spring sowing is generally carried out in March-April, while autumn sowing is carried out in September-October. Before sowing, the seeds should be treated. Select Allium ramosum seeds that are neat in shape, bright in color, and free from pests and diseases. Wash them with clean water, dry them, and then use 50% carbendazim wettable powder for seed disinfection.

　　Sowing methods can be row sowing or hole sowing. For row sowing, furrows are opened at a row spacing of 20-25 centimeters, with a furrow depth of about 3-4 centimeters; for hole sowing, holes are opened at a hole spacing of 20-25 centimeters, with 6-8 seeds sown per hole. After sowing, cover with a layer of fine soil, gently press down, and cover with straw for insulation and moisture retention. The sowing amount is 20-30 kilograms per mu.

　　III. Field Management

　　Watering: Allium ramosum needs sufficient water, especially during the germination and growth stages. During dry seasons, water should be applied in a timely manner to keep the soil moist, but avoid waterlogging that can lead to root rot.

　　Weeding: During the growth of Allium ramosum, weeds should be removed promptly to prevent them from competing with Allium ramosum for nutrients. Manual weeding or herbicides can be used for weeding.

　　Fertilizing: During the growth of Allium ramosum, topdressing should be applied in a timely manner. The first topdressing is applied when the seedlings are about 10 centimeters tall, with 10 kilograms of urea per mu; the second topdressing is applied before flowering, with 10 kilograms of urea and potassium sulfate per mu. In addition, fully decomposed organic fertilizer or compound fertilizer can be applied every 10-15 days to promote plant growth.

　　Cultivation and Earthing Up: Cultivation depth is about 5-10 centimeters, avoiding damage to the root system. Spring is a key period for the growth and expansion of Allium ramosum. Earthing up begins in mid-April, pressing the soil in the direction of the Allium ramosum seedlings. From May to June, Allium ramosum expands rapidly, and the soil layer is prone to cracking. The frequency of cultivation and earthing up must be increased to ensure that Allium ramosum is not exposed to light, preventing it from turning green, red, and aging.

　　IV. Pest and Disease Control

　　During the cultivation of Allium ramosum, pay attention to observing the plants, promptly identify pests and diseases, and take appropriate measures for control. Common pests and diseases include aphids, cabbage worms, and downy mildew.

　　The principle of prevention is to implement a plant protection policy of "prevention first, integrated control." Agricultural control is the foundation, promoting biological control, and scientifically and rationally using chemical control techniques according to the occurrence laws of pests and diseases. The application of pesticides must comply with relevant standards, choosing the time of application and reducing the number of applications. Pay attention to the alternating use of agents and reasonable mixing to delay the development of pest and disease resistance.

　　V. Harvesting

　　Allium ramosum can be harvested 3-4 months after planting. Spring-sown Allium ramosum can be harvested in late summer and early autumn, while autumn-sown Allium ramosum can be harvested in the following spring. During harvesting, use a shovel to dig out the roots, remove the soil, and retain the fibrous roots. Harvested Allium ramosum can be eaten fresh, pickled, or processed for preservation.