How to control the prosperity of strawberries? What kind of medicine can control prosperity?

Now it is a time when strawberry seedlings are growing crazily, and many strawberry seedlings are basically full. If they are not controlled in time, there will be excessive vegetative growth leading to insufficient reproductive growth, resulting in a large number of stolons and affecting yield, so how can strawberries control their growth? What kind of medicine can control prosperity?

Why should strawberries control prosperity?

The main purpose is to control the strawberry petiole from overstretching, the leaf is too thin and too large, the space occupied by strawberry plant is reduced, the aboveground part of strawberry seedling is compact, the leaf is thicker, the petiole is strong, and the root system is developed, which is beneficial to ventilation and light transmission. Improve the disease resistance of strawberry plants. The balance of vegetative growth and reproductive growth of strawberry can be regulated by blooming control, so as to advance flower bud differentiation and make strawberry blossom early and bear more fruit.

Conditions for controlling prosperity:

The seedling bed can be controlled when the seedling rate reaches more than 70%.

Measures to control prosperity:

Inter-park management technology

1. Control moisture and reduce available nitrogen fertilizer. Small water is watered frequently to meet the growth needs of strawberries while reducing soil moisture. To control the use of nitrogen fertilizer, it is recommended not to use any form of nitrogen fertilizer at this stage.

2. Nutrition regulation. Foliar spraying phosphorus and potassium fertilizer to achieve balanced fertilization of nitrogen, phosphorus and potassium. It can not only balance the nutrients in strawberry plants, but also promote flower bud differentiation.

3. Hoe short roots or plough to weed. When the plant growth is too prosperous, you can adopt the "paddling and hoing method" or middle ploughing. On the one hand, convenience can increase the air permeability of the soil, on the other hand, it can make part of the roots break, which is beneficial to the rooting of secondary roots.

4. Foliar spray triazole fungicides. For example, bacteriostatic and difenoconazole can effectively reduce the occurrence of strawberry diseases, and the growth inhibition characteristics of triazole fungicides can be used to control strawberry vegetative growth.

In terms of drug use:

Method 1:

Initial prosperity control: if the seedling bed emergence rate has reached more than 70% in early July, it can be carried out for the first time, and only the mother seedling can be controlled.

Secondary blooming control: from late July to early August, the whole field was controlled, and strawberry flower bud differentiation scheme was used.

Method 2:

Dig out the old seedlings when the seedling emergence rate reaches more than 70%, and make the first generation seedlings continue to produce stolons on the position of the mother seedlings. After the stolons have grown well, the whole field control will be carried out between late July and early August, together with the use of the flower bud differentiation package.

Method 3:

Paclobutrazol, uniconazole dosage is not easy to grasp, the dose is light, uncontrollable, the dose is large, and so on, strawberry growth point is not blocked for a long time, and even planted in the field, not slow seedling for a long time. As a result, the differentiation of flower bud was blocked and the number of abnormal fruit increased. From the analysis of the properties of the drug, paclobutrazol is slow and the residue time is long. Compared with paclobutrazol, the residual period of paclobutrazol is shorter and safer than paclobutrazol.

Method 4:

The use of azole fungicides in strawberry seedlings can not only prevent diseases, but also inhibit the growth of strawberry seedlings. It is generally recommended that it should be used in July, and when the number of seedlings reaches about 60% to 70%, it can be used in a small dose in the early stage, which can not only prevent diseases but also control strong seedlings. After entering the middle of July, the temperature rises, Rain Water increases, strawberries enter the peak growth period, and the dose can be increased. For example, Yulong stable harvest (oxime carbendazim). Tebuconazole) 5 grams of water and 15 kilograms of water are used in the early stage, and 10 grams of water and 15 kilograms of water are sprayed in the later stage.