Key points of management of flowering and pod stage of soybean

The management of flowering and pod stage of soybean is related to the final yield of soybean planting and the income of farmers. So how should the bean pod period be managed? Let's take a look at the detailed introduction.

1. Fertilization

Soybean in the flowering and pod stage is the peak period of fertilizer demand, so the focus of this stage is fertilization, especially flowering fertilization, with obvious yield increase effect, generally in the early flowering stage, apply 500 kg of thin human manure per mu, add 3-5 kg of urea mixed with hole application, and fertile soil, vigorous plant growth field can be less or not applied, so as to avoid excessive plant growth, lodging. Combined with topdressing nitrogen fertilizer, foliar spraying phosphorus, potassium fertilizer, boron, molybdenum and other micro-fertilizers in pod bearing stage, it has excellent yield increase effect. Generally sprayed twice, each time with 100 grams of potassium dihydrogen phosphate, 25 grams of ammonium molybdate, 100 grams of borax and 50 kilograms of water per mu, evenly scattered on the stems and leaves.

2. Irrigation for drought resistance

Soybean needs a lot of water in flowering and pod stage, and it is sensitive to water. Generally, drought and water shortage will cause a large number of flowers and pods to fall. Therefore, irrigation should be carried out in time when the climate is dry or when the leaves are withered, but the irrigation method should also be paid attention to. It is not suitable for flood irrigation, which can easily lead to suffocation and death of roots. After water infiltration, it will also lead to soil hardening and cracking, thus damaging the roots and causing plant lodging and death. It is suggested to irrigate with small ditches, dig ditches between rows, and drain water in ditches. When the soil is wet, excess water can be drained away so as not to affect root growth.

3. Drainage and stain reduction

The waterlogging tolerance of soybean itself is poor. If there is too much rain in the flowering and pod stage, it will cause yellow leaves and a large number of flowers and pods to fall off, and the water in the soil will also lead to hypoxia or suffocation of roots. Therefore, when it rains during the flowering and pod period, it must be drained in time to avoid poor plant growth, thus affecting the later yield.

4. Control Wang

In the case of sufficient fertilizer and water, the stems and leaves of soybean plants are easy to grow excessively and flourish, competing with pods for nutrients, resulting in poor growth of soybean seeds, which seriously affects yield and income. Therefore, in the flowering and pod period, we should do a good job of controlling the flourishing measures. Chemical control is commonly used in production. Generally, paclobutrazol with very low concentration is sprayed around the flowering stage. The uniform spraying on both sides of the leaves has obvious effect of controlling the flourishing, which can greatly inhibit the growth of plants and concentrate nutrients on the pods. The yield increase effect is obvious.

The above is the introduction to the management points of soybean pod period. I hope it can help you. If you want to know more about it, please pay attention to us.