Cotton Planting Knowledge (Nine): Cotton Seed Treatment

< p > > a href= "http://www.91se91.com/news/" > cotton seed < /a > treatment is one of the key technologies to prevent seedling diseases, prevent emergence of high seedlings and achieve "one seeding and whole seedling" of cotton.

Because the existing seed processing technology can only achieve the sulfuric acid develvet and selection treatment, and the coating technology can not keep up with it, farmers often carry out seed treatment because of improper operation techniques (such as the type and dosage of pesticides), which may lead to the emergence of seedlings or fail to achieve the desired effect of seed treatment. Therefore, mastering the seed treatment technology is very important.

In the process of seed treatment, we should pay attention to the following problems.

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< p > 1.. Before the seeds are processed, the seeds should be selected for sun drying.

The main selection is to remove sick seeds, seeds, seeds and seeds.

Seed drying can accelerate seed ripening and sunny days for 2 days to 3 days.

It is not allowed to insolate on the cement floor to prevent damage to the physiological activity of the seeds.

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< p > 2. < a href= "http://www.91se91.com/news/index_c.asp > > drug > /a > selection.

Wei Fu costs much and does not advocate using it.

Generally, plastic film mulching can be used for less rainfall or drilling. It can be used as enemies, pine or carbendazim. When the demand is good and rain is heavy, the use of enemy or pine can be reduced.

(2) prevent insect pests at seedling stage by mixing 3911 or methyl sulphur ring phosphorus.

Prevention of high plantlets should be treated with DPC.

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< p > 3. dosage 1. The dosage of Dixon is 0.3% of the seed dosage, 2.5% of carbendazim, 0.2% of Wei Fu. The dosage of 3911 or methyl sulphur phosphorus can not be increased at will, otherwise, it is easy to produce phytotoxicity, generally it is 0.5% of seed consumption.

3. The dosage of DPC should be considered.

For the seedlings with stable growth, the amount of reducing amine should be less; while the seedlings with vigorous growth and easy to form seedlings with high stilts, the amount of the use of DPC can be increased appropriately; the seedlings with stable growth and sensitive to the DPC are not mixed.

The general dosage of DPC is not more than 0.04% of the seed consumption.

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< p > 4. < a href= "http://www.91se91.com" > seed dressing > /a > seed dressing, usually first mix fungicides, shortening amine, and then mix insecticide.

Several times of seed dressing operation is more troublesome. According to the following methods, good results can be achieved.

According to the above dosage, the ratio of 100 kg seed to 500 grams, 3911300 grams of enemy Kosen, 20 grams to 40 grams of amine can be used.

First, a small amount of water is used to dissolve the amine, and 5 kilograms of water is added to the sprayer, then 3911 and the dissolved amine can be mixed.

For the first time, spray half of the liquid. After a little drying, spray the remaining liquid.

After spraying evenly, mix the Kson powder in a damp seed and press it for 24 hours.

It is forbidden to insolate under the scorching sun. Otherwise, the enemy will loose the light to decompose and affect the efficacy.

After drying, bagging for sowing.

The 3911 is highly toxic pesticides. We should pay attention to the safety of human and livestock.

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