Broad bean cultivation techniques

When cultivating broad beans, you must pay attention to some issues. From a technical point of view or a management point of view, there are certain precautions. Today I will tell you about it:

1. Dig trenches and divide the soil.

The groundwater level is 2-2.5 meters for normal fields, 2.5-3.5 meters for lower fields, 18-20 cm deep and 30 cm wide. Ridge cultivation is implemented for higher fields, with ridge width of 50-55 cm, ditch depth of 30-40 cm and width of 40 cm.

2. Sowing period:

The best sowing period is determined by avoiding heavy frost during the flowering and pod-setting period. That is, sowing is done from October 5 to 15 in areas with an altitude of 1550-1700 meters; sowing is done from October 10 to 20 in areas with an altitude of 1750-1900 meters; sowing is done from October 15 to 25 in areas with an altitude of 1950-2200 meters and above.

3. Reasonable density planting:

In areas with an altitude of 1550-1700 meters, 12,000-15,000 seedlings are left per mu, with a spacing of 15-18×30 cm; in areas with an altitude of 1750-1900 meters, 18,000-22,000 seedlings are left per mu, with a spacing of 13×26 cm or 16×20 cm; in areas with an altitude of 1950-2200 meters and above, 23,000-28,000 seedlings are left per mu, with a spacing of 13-15×18 cm. Use strip sowing.

4. Reasonable fertilization:

After sowing, cover the soil with 1500-2000 kg of high-quality manure or appropriate amount of rice straw per mu; apply 30 kg of superphosphate and 10-15 kg of potassium sulfate per mu during the 2.5-3 leaf stage; in Dali City and Eryuan County of Yunnan Province, in order to reduce the pollution of Erhai Lake, etc., mix the seeds with 0.5-1 kg of soil phosphorus activator (Anlisu) per mu, and apply 15-18 kg of superphosphate per mu during the 2.5-3 leaf stage.

5. Watering:

Water the plants 3-4 times in time for bud and flowering, water the plants in full bloom and water the plants for pod formation, and water the plants for grain filling and grain swelling.

6. Pest and disease control:

Use 100-150 grams of fenbuconazole per mu to prevent rust; use 100 ml of insecticide to prevent aphids and leaf miners; use 60 ml of 15% Jingwenshade or 60-70 ml of Weiba per mu to remove weeds.