The latest peanut rot causes and remedies

Peanut is a food and oil crop, which has excellent edible value and economic value, and has a good planting prospect. It is widely planted in our country, but when planting, the phenomenon of rotten peanut seeds is rarely troublesome. So how to remedy the rotten peanut seed? Let's take a look.

1. Symptoms of rotten seedlings

The rotten seeds of peanuts showed uneven emergence or lack of seedlings. when the base soil was removed, the seeds swelled and rotted, or the main root was deformed, the disease spot was brown or black rotten, the cotyledons rotted and yellowed, and thick pulp appeared.

II. Causes of occurrence

There are many reasons for rotten peanut seeds, first, the temperature of peanut seeds is low, the germination temperature of peanut seeds is 25-37 degrees, once the temperature is too low, rotten seeds will appear; second, the soil moisture is too low, when sowing, the soil relative humidity is more than 70%, and the oxygen supply is inadequate. it will aggravate the rotten seed, hot ploughing and drying for more than two days, and slight rotten seed will occur. Third, sowing too deep, peanut naked sowing depth should be 5 centimeters, plastic film sowing should be 3 centimeters, if sowing 6 centimeters is prone to rot phenomenon, sowing more than 7 centimeters rotten seed rate up to 90%.

III. Remedial measures

1. Check and replenish seedlings

For the rotten field of general peanuts, it is necessary to pick up the soil and check the seedlings in time. If the missing seedling rate of this land is less than 10%, there is no need to replant. If the missing seedling rate is about 10%, 30%, it is necessary to accelerate budding and replant in time. Plots with missing seedling rate above 60% should be destroyed in time, and then ploughed and sown with plastic film mulching in time.

2. Weak seedlings become strong

For the weak seedlings with poor root system, plant growth regulators can be used to promote the weak seedlings to become strong and cultivate strong seedlings. 5 grams of 0.1% brassinolide per mu can be mixed with 30 kg of water, and foliar fertilizer spraying measures can be taken to promote the weak seedlings to become strong.

3. Release seedlings

Sow first and then cover the peanut field with plastic film. When the top soil of peanut seedlings is, release the seedlings in time and use soil pressure to tighten the hole.

4. Prevention and control of diseases

Peanut seedlings are weak and have poor disease resistance, so root rot and stem rot should be irrigated with carbendazim as soon as possible.

The above is the introduction of the causes and remedies of rotten peanuts. I hope I can help you. If you want to know more about it, please follow us.