The latest course on planting techniques and methods of string beans

Kidney beans can be planted in both spring and autumn, which are deeply loved by growers and are widely planted in the north and south of our country. Kidney beans in early spring in Chengdu Plain can be sown after February 10 and harvested in mid-late April. In other places, the appropriate sowing time can be chosen according to the temperature and planting habits. The seed amount of kidney bean 667 was 4 kg and 3000 nests were planted (4 seedlings per litter). The yield was about 3000 kg and the output value was about 3000 yuan.

Selection of varieties

When planting green beans in early spring, varieties with cold resistance, strong disease resistance, high yield and good quality should be selected.

Soil selection

Kidney beans do not have high requirements for soil, no matter loam and sandy soil can grow well, as long as the fields with good drainage and irrigation can be planted, but fertile soil can achieve high yield.

Seedling raising technology and seedling stage management

1. Green beans are planted in greenhouse because of their strong cold tolerance and no need for high temperature (the temperature above 25 ℃ has an effect on the differentiation of flower buds).

(1) Seedling raising time. Planting in the shed can be sown around February 10.

(2) whole compartment. First refine the seedbed and make it into a chamber with a width of 1.2 meters and a groove depth of 20 centimeters. The length of the chamber can be determined according to the amount of sowing. Pour the bottom water, then smooth the surface with a sand board, bounce it into a 9 cm wide line with a nylon rope, then cut it into a 9 cm × 9 cm square with a knife, and pick a 1-2 cm deep nest in the middle of the square.

(3) sowing

① seedlings: sow 4 seeds in the checkered nest and cover with a handful of fine soil. Fields with underground pests can be watered with phoxim 1000 times the solution. After finishing the first compartment, lay a layer of plastic film on it, cover the shed, and so on, the plastic film can be removed after the seedlings break the soil. If there is a sun, the shed can also be opened. When the seedlings grow to 2 true leaves, they can be planted in the shed (no shed, only plastic film can be sown and transplant 10 days later).

② live broadcast: string beans can also be broadcast in the field, but the sowing time should be postponed to after February 25th. Open the compartment of the fertilized field 1.4 meters, press the distance between 35 cm and 40 cm, direct broadcast two rows in each compartment (20 cm from the side of the box), put 4 seeds in each litter, and then cover with soil. After sowing, lay the plastic film flat on it, press it with mud all around, and wait for the seedlings to be unearthed, aim at the seedlings and tear a hole in the film to draw the seedlings out. If the soil is dry, dig the nest first, pour clear water, and wait for the water to dry before sowing the seeds.