How to use metanide and precautions

Thalidomide is a kind of plant growth regulator used in crop flowering stage, which can promote crop reproductive growth, inhibit the growth of branches and leaves, shape crop plant type, increase root number and activity, increase yield and improve quality. Especially in the cotton field is very widely used, the following with the editor to take a look at the use of metoprolol and matters needing attention.

I. method of use

1. Soaking seeds

If the cotton seeds have not been treated by seed coating, then the seeds can be soaked with metoprolol, generally adding 1-2 grams of propranolol every 10 kg of water. Soak the cotton seeds for 8-12 hours, drain the water and sow the seeds. This can promote the root development of cotton and enhance the stress resistance and lodging resistance of seedlings.

2. Spraying at seedling stage

In late June or so, drugs can be used according to the growth and appearance of cotton seedlings. 0.5-1g / mu of thalidomide and 20-30kg of water can be sprayed at the top from clover to bud stage. When spraying, it is required to spray evenly, and if necessary, we can appropriately increase the number of times according to the actual situation, properly control the plant type, and coordinate fertilizer and water management.

3. Spraying at the early flowering stage

In the early flowering stage of cotton, 2-3 grams of ketamine can be sprayed with 30-40 kg water per mu, which can obviously inhibit plant growth, optimize crown structure, postpone row closure and increase cotton boll quality.

4. Spraying at flower and boll stage

Generally in the middle of August, foliar spraying is carried out with 3-4 grams of thalidomide per mu and 40-50 kg of water, mainly in order to inhibit the growth of ineffective buds and buds in the later stage, prevent greedy green and late ripening, increase the fruit yield of autumn peach and increase the weight of single boll.

II. Points for attention

The fields with good fertilizer and water conditions and vigorous growth are not suitable for use in fields with dry climate and no guarantee of irrigation, and can not be used when suffering from diseases and insect pests, natural disasters and growth inhibition. Avoid a single overdose. Especially in the seedling stage and bud stage, excessive drug use will cause slow plant growth, fruit branches shrink together, resulting in leaves can not normally expand, resulting in a large number of buds and cotton bolls shedding, resulting in a serious reduction in yield. Pay attention to fertilizer and water management after spraying thalidomide, and do not ignore watering and fertilization because the leaves become darker after spraying. In addition, the spraying time is finally chosen to take you around 10:00 or 5 pm on a sunny day, and you should be re-sprayed in case of rain within 8 hours of spraying.

The above is an introduction to the use of metoprolol and matters needing attention. I hope it can help you. If you want to know more about it, please follow us.