Key points of field management 5-7 days before transplanting of dry-raised rice seedlings

Dapai Village, Shangguan Town, Dali City, as one of the rice industry demonstration county projects, has a rice area of 1425 mu this year, with an output target of 750kg / mu. In order to achieve high yield and high yield of rice, agricultural technical instructors at city and town levels entered the village, went deep into the fields, conscientiously guided the demonstration households of the rice industry and surrounding farmers, and actively did a good job in the field management of dry raising seedlings. Recently, the key point is to do a good job in the implementation of field management technical measures such as scientific water control, fertilization, prevention and control of diseases, pests, weeds and rodents 5-7 days before planting, so as to ensure that a sufficient number of tillers and strong seedlings without diseases and insect pests are cultivated, so as to lay the foundation for high yield of rice.

1. Scientific water control

5-7 days before dry raising rice seedlings, it is still necessary to control water scientifically. Even if the seedling leaves wilt at noon, there is no need to replenish water, but if there is a "reel" phenomenon in the leaves, it will be watered once after 4 pm combined with topdressing "marriage fertilizer", and then there is no need to replenish water before planting.

2. Scientific fertilization

5-7 days before the dry raising of rice seedlings, it is necessary to scientifically apply "marriage fertilizer". First, for the seedlings that are not strong enough, the growth is not strong enough, and the seedlings have the phenomenon of losing fat, after 04:00 in the afternoon, evenly sprinkle 3-5 kg of urea and 0.5-1 kg of potassium dihydrogen phosphate per mu of seedling field, and then immediately sprinkle and wash the seedlings, so that the fertilizer can be completely melted and infiltrated into the soil of the seedling field to prevent fertilizer damage. Second, for seedlings with strong, strong growth and normal leaf color, as long as after 04:00 in the afternoon, use 100g of potassium dihydrogen phosphate per mu, 60kg of water, and spray once.

3. Scientific prevention and control of diseases and insect pests

In order to achieve high and stable yield of rice, strong seedlings without diseases and insect pests must be cultivated. Therefore, 5-7 days before transplanting, a "marriage medicine" should be sprayed. First, 40% thiocyclazole 150 grams per mu of seedling field, 50-60 kg of water, spray once, which has a good effect on the control of rice blast; second, 200 ml of fungal toxin per mu of seedling field, 50-60 kg of water, spray once, which has a better effect on the control of rice bacterial blight; third, the selection of 50 ml per mu of seedling field, 50-60 kg of water, spraying once has an obvious effect on the control of rice insect lice and rice leeches.

4. Do a good job of weeding and rodent control

The first is to adopt the method of artificial weeding to thoroughly remove all kinds of weeds in the seedling field and seedlings infected with evil seedling disease, so as to prevent the spread and harm of weeds and evil seedling disease, and the other is to put the anti-rodent bait in time to prevent the shortage of seedlings caused by rodent damage.