The excessive growth of soybean seedlings can not be controlled in time in order to avoid yield reduction.

In recent years, the number of soybean growers is gradually increasing, and the planting area of soybean is also increasing, but many farmers are not very familiar with the problems that may occur in the soybean planting process, so there will be more problems. For example, the problem of excessive growth of soybeans mentioned today.

The performance of excessive growth of soybeans

The overgrowth of soybeans is what we often call overgrowth. The occurrence of excessive growth of soybeans is mainly due to the fact that the growth of soybeans is very prosperous in the process of growth, the leaves are oil-green, the leaves are dense, and the branches are too high to enter the field. And the internal leaves of soybeans are small, yellowing, inflorescence less and so on, which show that the soybean is flourishing and overgrowing.

The reason for the excessive growth of soybeans

The reason for the excessive growth of soybeans is mainly due to the lack of experience of growers and the lack of field management. And during the soybean growth period, unreasonable fertilization, excessive use of nitrogen fertilizer, large amount of water, sufficient light and other conditions will occur in the adult soybean growth is too high.

The consequences of excessive growth of soybeans

If the growth of soybeans is too high, the trunk of soybeans will be too thin and the lodging resistance will become worse. In addition, due to the high growth, nutrition is mainly supplied to the leaves, resulting in the late differentiation of soybean leaves and the decrease of inflorescence. And if the soybean grows too high, the adult plant will be weak and the ability of disease resistance will be weakened. Soybeans are greedy and fruiting is delayed, which directly leads to the reduction of soybean production.

How to control the excessive growth of soybeans?

For the occurrence of soybean growth is too high, the natural way to deal with is to control prosperity timely and reasonably.

First of all, in terms of fertilizer, it is necessary to reduce or stop using nitrogen fertilizer. Because nitrogen fertilizer will promote the leaf growth of soybeans, it is easy to further lead to excessive growth of soybeans. And the root of soybean has rhizobium, and the rhizobium itself has a good effect of nitrogen fixation.

Secondly, if the leaves are thinned in time, the growth of soybeans is too high, and the leaves are too dense, which will lead to the decrease of air permeability and light transmittance between soybean plants, resulting in the decrease of flower bud differentiation. In general, when thinning leaves, one is usually cut from one leaf to another according to the growth status of the plant. Proper tapping, and some lateral branches with fewer flowers and pods can be directly removed to provide nutrients to the main branch.

Third, you can also choose common prosperity control drugs for reasonable spraying, generally you can choose paclobutrazol. However, the use of prosperity control drugs must have a good grasp of the time and the concentration of power control drugs. Time is generally in the early flowering stage of soybean, we must wait until the soybean blossoms, do not blossom can not be sprayed. The concentration must also be proportioned according to the product instructions, and do not adjust the concentration at will.