The Latest Preventive Measures for Black Soybean Flower and Pod Drop
Black soybean not only has extremely high nutritional value, but also extremely high medicinal value, with the effects of reducing swelling and lowering qi, moistening the lungs and clearing dryness-heat, invigorating blood and promoting water metabolism, and dispelling wind and removing obstruction. For growers who plant black soybean, flower and pod drop is the last thing they want to see, so how can black soybean flower and pod drop be prevented? Let's take a look at the detailed introduction.
1. Reasonable close planting
When planting, first pay attention to planting density. Some farmers, in order to increase yield, plant too densely. In this case, during the flowering and podding stage of black soybean, the field is closed and the permeability is poor, the flowers and pods crowd each other, causing the photosynthesis of the leaves to weaken and the synthesis of nutrients to be insufficient, while also hindering the transport of nutrients. In this environment, flower and pod drop will occur. So excessive density will not only fail to increase yield, but on the contrary will reduce yield. Therefore, when planting, reasonable close planting must be carried out to improve the permeability of the field and increase yield.
2. Reasonable fertilization
Black soybean has a relatively large fertilizer requirement during growth, so this point should be noted when planting. If the soil fertility is insufficient, the flowers and pods will drop due to vegetative growth. Fertilization should be mainly base fertilizer, supplemented by topdressing, mainly organic fertilizer, supplemented by chemical fertilizer. Especially after black soybean flowering, it must receive sufficient nutrients, but attention should also be paid to the application amount of nitrogen fertilizer to avoid excessive vegetative growth. Attention should be paid to combined use with phosphate fertilizer to avoid flower and pod drop
3. Appropriate irrigation
The flowering and podding stage of black soybean coincides with midsummer, when the temperature is high and hot, soil moisture evaporates quickly, and the soil is prone to drought and water shortage. The root absorption capacity of black soybean will then weaken, and over time flower and pod drop will occur. Therefore, after this situation occurs, regular irrigation should be carried out in midsummer, but flood irrigation is not suitable. Small amounts of water applied frequently should be the main method. If too much water is applied each time, it may lead to excessive moisture, causing its roots to absorb slowly, or even be unable to absorb nutrients and water, resulting in flower and pod drop. In addition, summer is also a rainy season. In order to avoid soil waterlogging and root rot, drainage measures should be taken well after rain.
4. Weeding
Weeding should be carried out in time during the growth period. Weeds not only compete with black soybean for water and fertilizer, but a certain amount of vigorous weeds will cause the field to be closed and the permeability to be poor, and weeds also provide the best hidden habitat for pests and diseases. Generally, when this situation occurs, flower and pod drop will occur over time. Therefore, for the purpose of increasing yield, regular weeding is recommended. It can not only improve the growth environment of black soybean and increase permeability, but also reduce the degree of harm from pests and diseases.
The above is an introduction to the preventive measures for black soybean flower and pod drop. I hope it can help you. If you want to learn more related knowledge, please follow us.