What month is suitable for planting broad beans in northwest China, and how many months can broad beans be harvested? What is the row spacing between plants and the yield per mu?

The suitable planting areas for spring sowing of broad beans are the northern region and the northwest region, and the seedlings are sown in March-April every spring.

2. When do you plant broad beans in autumn?

The suitable planting area of broad beans in autumn is the southern region, which is sown from September to June every year, 65438+ 10, and the lower reaches of the Yangtze River are generally sown in mid-June.

1, seed selection and sowing

When selecting broad bean seeds, we should choose excellent seeds with high yield and no disease. Before sowing, the land should be dug deep and ploughed to make it soft, which is beneficial to root system expansion and germination to form nodules, and then inoculation with rhizobia can increase production. Soil inoculation can be carried out by taking about 100 kg of soil from the soil where broad beans are planted and scattering it in the ditch.

2. Seedling management

Broad bean stems are of medium height and will branch, so the spacing between plants should be slightly larger. Generally, the row spacing is about 30 cm, and the plant spacing is 15-20 cm.

Pay attention to the seedling situation at the seedling stage and formulate corresponding control methods according to the seedling situation. After sowing, cover with soil and straw to keep the temperature and humidity. In the middle growth stage, it is necessary to prevent and control pests and diseases, treat diseased plants, remove sick and weeds, and destroy them centrally. Spraying pesticides to control pests and mice, controlling water and tidying branches and seedlings. To ensure the normal development of plants. In the later stage, ensure the demand of plants for water, control the density and maintain good ventilation and light transmission between the ground and the ground.

3. Top dressing and watering

Watering in time after sowing to maintain the required moisture can promote early germination and emergence. After sowing, the soil should be compacted to prevent the growing plants from lodging. When young leaves grow, some small bundles of nitrogen fertilizer can be applied appropriately, and phosphorus fertilizer and potassium fertilizer should be applied at different times during the growth period. More trace elements should be applied during pod setting, which can reduce the phenomenon of flower and pod and achieve high yield. At the beginning, it is mainly to ensure drainage and ventilation, otherwise it will cause the flowers and pods to fall off and the beans to dry up.

4, intertillage pruning

Check it in time after emergence, and replant it immediately if it is found missing. At seedling stage, it is necessary to regularly intertillage and weed, and pat the soil thick to prevent lodging. Pay more attention to the branching of seedlings before and after flowering. The branches of broad beans are difficult to pod, so it is necessary to cut off the redundant branches to absorb more nutrients for the main stem and improve the seed setting rate and fullness rate.

5, timely harvesting

When harvesting broad beans, it can be done in batches, from bottom to top, about once a week. Some mature seeds can be preserved. When the leaves fall, pick the middle and lower pods, peel them off after drying, and preserve the broad beans.