Planting method and time of earth ring

Soil preparation and fertilization: choose to plant in the sandy soil with loose fertility and convenient drainage and irrigation, and apply 1500kg farm manure and other compound fertilizers 100kg per mu. Sowing in spring: the depth of sowing is 5-7cm, and 1-2 disease-free and robust tubers can be sown in each hole. Field management: ploughing and weeding should be carried out after emergence. Fertilizer and water management: watering in times of drought, but it is not suitable to irrigate heavy water in summer days, and timely drainage is needed in the rainy season to avoid rotting roots.

1. Soil preparation and fertilization

1. The meat of the earth ring is thick, the taste is crisp and tender, and it can be pickled into candied fruit with good taste, rich nutrition, strong adaptability to the environment, cold and heat resistance, generally few diseases and insect pests, like fertilizer but afraid of waterlogging, so when planting, adapt to choose to plant in fertile and loose sandy soil, as well as in areas with convenient drainage and irrigation.

2. Soil preparation and ploughing can be carried out in the autumn of last year, during which the sun can be used to reduce the source of overwintering diseases and insect pests. Farm manure 1500kg and other compound fertilizers 100kg can be applied per mu and raked fine and leveled in the early spring of the year.

Second, sowing in spring

1. When planting, varieties need to be selected according to the local climate and soil conditions. Tubers can be selected for propagation. Generally, when the soil is thawed for 10-15cm in spring, the sowing depth is 5-7cm, not too deep or too shallow.

2. During the period, the row spacing of 15 × 30-45cm should be controlled, and 1-2 uniform, disease-free and robust tubers could be sown in each hole. After sowing, soil mulching was needed to suppress, generally, 1-1.5 plants per mu, and the amount of seeds used was about 100kg.

III. Field management

1. Intermediate ploughing and weeding should be carried out after the emergence of seedlings in the earth ring, during which loose soil is needed to promote rhizome growth so as to avoid weeds affecting seedling growth. It is generally recommended to remove weeds manually and not to use chemical herbicides. If it is planted in a large area, less harmful agents can be used.

2. During this period, the stolon can be properly cultivated so as not to expose the stolon. In the stage of tuber expansion, intermediate tillage should be suspended to prevent damage to the tuber. If the plant grows too vigorously, it should be pruned properly to inhibit its growth and development.

IV. Fertilizer and water management

The main results are as follows: 1. After applying sufficient base fertilizer, an appropriate amount of available nitrogen fertilizer can be applied in the later stage. Urea 10kg can be applied per mu from May to June, and once again in July, while in the tuber expansion stage in August, the expansion fertilizer should be applied again. In addition to urea, phosphate and potassium fertilizer, diammonium phosphate 30kg can also be applied per mu.

2. Avoiding premature senescence of plants is beneficial to accelerate the expansion of tubers, and the management of water is relatively simple, generally watering in dry days, but it is not suitable to irrigate heavy water in summer days, and timely drainage and waterlogging prevention are needed in the rainy season to avoid rotting roots.