Cultivation techniques and management of soybean: a few months after soybean flower germination? Key points of management of flowering and pod stage of soybean

The management of the flowering and pod stage of soybean is related to the final yield of soybean planting and the income of farmers. Once the management is improper, the yield will be reduced and the harvest will be lost. So how to manage the flowering and pod period of big beans? Let's take a look at the detailed introduction. It blossoms about 50 to 60 days after sowing. It is usually planted in 4-May, and the flowering period is around September.

1. Fertilization

Soybean in the flower and pod stage is the peak of its fertilizer demand, so the focus of this stage is fertilization, especially at the flowering stage, which has an obvious effect of increasing production. Generally, 500 kg of thin human feces and urine per mu is applied at the early flowering stage. 3-5 kg urea is mixed with hole application, while fields with fertile soil and vigorous plant growth can be applied less or not to avoid plant overgrowth and lodging. In the podding stage, combined with topdressing nitrogen fertilizer, foliar spraying phosphorus, potassium fertilizer and boron, molybdenum and other micro-fertilizer, there is an excellent effect on increasing yield. Generally spray twice, each mu with 100 grams of potassium dihydrogen phosphate, 25 grams of ammonium molybdate, 100 grams of borax plus 50 kilograms of water, evenly scattered on the stems and leaves.

2. Irrigation to resist drought

Soybean needs a lot of water at flowering and pod stage, and it is sensitive to water. Generally, it will cause a large number of flowers and pods when drought and water shortage. Therefore, it should be irrigated in time when the climate is dry or when the leaves are withered, but we should also pay attention to the method of irrigation, which is not suitable for flood irrigation, which can easily lead to root asphyxiation and death, and water infiltration will also lead to soil hardening and cracking, thus damaging the root system and causing the plant to lodge and die. It is recommended that small ditch irrigation, digging ditches between rows, releasing water in the ditches, when the soil is moist, the excess water can be discharged so as not to affect the root growth.

3. Drainage and lowering of stains

The waterlogging tolerance of soybean itself is poor. If there are too many Rain Water in the flowering and pod stage, it will cause the plant leaves to yellowing and a large number of flowers and pods to fall off, and the stagnant water in the soil will also lead to hypoxia or suffocation of the roots. Therefore, in the flower and pod period when rain must be timely drainage, so as to avoid poor plant growth, thus affecting the yield in the later stage.

4. Control prosperity

Under the condition of sufficient fertilizer and water in the flowering and pod stage of soybean, the stems and leaves of the plant are very easy to grow and flourish, and compete with pods for nutrients, resulting in poor growth of soybean grains and the phenomenon of blighted grains, which seriously affects the yield and income. Therefore, it is necessary to take good measures to control growth in flowering and pod stage, chemical control is commonly used in production, generally spraying paclobutrazol with very low concentration around flowering stage and uniformly spraying paclobutrazol on both sides of leaves, the effect of controlling growth is obvious, it can restrain plant growth to a great extent, concentrate nutrients on pods, and increase yield obviously.

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