What are the methods for selecting seeds and raising seedlings for green beans?

Green beans are also called kidney beans in many places, while in the local dialect where the editor is from they are called "tong dou zi". For green beans, the planting time and seedling-raising time are generally determined according to differences in the characteristics of their varieties. Below, let us learn together about which varieties of green beans there are and their seedling-raising methods.

1. How to select green bean seeds? What varieties are there?

1. Yulong No. 8

The Yulong No. 8 green bean variety is vining, with a plant height of 200-250cm, green leaves, terminal leaflets heart-shaped, veins obvious, and the tip concave. Flowers white. Long and flat-round in shape, immature pods green, mature pods greenish-white, 21cm long, 1.5cm wide, with 7-9 seeds per pod. Seeds flat kidney-shaped, white, with a white hilum.

2. Chiyu No. 2 green bean

This variety is vining, with a plant height of 350cm. The terminal leaflet of the compound leaf is rhombic-round, the tips of the two lateral leaflets are slender and pointed, and the base is round. A single plant has 3-5 branches and bears about 70 pods. Flowers white, with the first inflorescence borne at the 3rd-4th leaf node, and each inflorescence bearing 4-8 flowers. Pods cylindrical, stringless, green, 25-30cm long, with 7-9 seeds per pod. Seeds flat kidney-shaped, brown, with a purple-red hilum ring.

3. Qicun White Kidney Bean

This variety is a medium-early maturing variety. The vine length is 2.5~2.8 m, with relatively vigorous growth. Inflorescences appear at the 3rd~4th node, and a single inflorescence bears 3~6 pods. Pods are 20~25 cm long and 1~1.2 cm in diameter; young pods are light green, and mature pods are white. Its outstanding feature is excellent quality and no fiber; even when old mature pods have turned yellow and soft, the pod skin still has no fiber. The yield is generally 1800~2500 kg per mu. This variety is suitable for cultivation in spring greenhouses, spring open fields, and summer-autumn open fields.

2. How to raise green bean seedlings?

1. Seedling raising

The root system of green beans has weak regeneration ability. Using nutrient pots for seedling raising can, to a certain extent, ensure the survival rate during transplanting and reduce the degree of root damage. For the nutrient soil used for seedling raising, soil with high organic matter content should be selected, and the amount of quick-acting nitrogen fertilizer should be strictly controlled. It is best to use fertile field soil rather than garden soil, so as to avoid harm caused by soil-borne diseases and insects. The organic fertilizer in the nutrient soil must be fully fermented and decomposed. The main raw materials include horse manure, cow manure, or well-composted compost, etc. If conditions permit, bio-organic fertilizer can be used.

2. Sowing

If raising seedlings in nutrient pots, sowing should be carried out on a sunny and warm morning. Before sowing, first water thoroughly to saturate the bottom water, and after the water seeps down, sow the seeds by dibbling. Sow 2 to 4 seeds in each nutrient pot, cover with 2-3 cm of soil after sowing, and then move the seedling tray into a greenhouse or plastic tunnel for warm seedling raising. If the outside temperature is low, cover with straw mats at night to keep warm. For vining green bean varieties, the sowing rate is 2 to 3 kg per mu, and for dwarf green bean varieties, 2.5-4 kg per mu.

3. Temperature

After sowing green beans and before emergence, the daytime temperature should be maintained at 25-35°C, and at night not lower than 15°C. After the seedlings emerge, the daytime temperature can be appropriately lowered and maintained at 20-25°C. After 20-30 days, when the seedlings have 2-4 true leaves, they can be transplanted and set out. 3-5 days before setting out green beans, the daytime temperature can be lowered to about 15°C, and kept above 10°C at night, to harden the seedlings and enhance their adaptability.

4. Water management

During the seedling stage of green beans, if the seedling soil is not excessively dry, no watering is needed. If the climate is dry, light watering can be done, or fine moist soil can be scattered between the plants to preserve moisture. Never use flood irrigation, to prevent lowering the soil temperature due to watering with cold water and causing the "rusty root" phenomenon in seedlings.

In summary, that is all the content about green beans. If you plan to grow green beans this year, you can come to Nongxun Network to buy seeds and seedlings; just click the agricultural product links below that you may be interested in.

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