How to cultivate rice seedlings

In addition to choosing high-quality varieties of rice, raising seedlings is also very important. The seedlings grow healthily, the survival rate is relatively high, and the yield will be greatly increased. So how to cultivate rice seedlings?

I. Seedling field selection

The fields that grow rice should be fertile and non-saline, so it is very convenient to drain and irrigate water.

2. Fertilization in seedling field

The fertility of the fields where rice is planted will determine whether the cultivated rice seedlings are strong or not. About 6 square meters of farm manure and 51 kilograms of cake fertilizer should be used for ploughing one mu of rice fields. Generally speaking, about 4 days before sowing, 16 kg to 21 kg of monoammonium, 31 kg to 41 kg of ammonium sulfate, 16 kg to 21 kg of potassium sulfate and 3 kg of zinc sulfate should be used in one mu of seedbed. Then, using a fine rake, mix the fertilizer and soil evenly, and wait for sowing after finishing.

Third, seed soaking and disinfection

In order to improve the germination rate of rice seeds, the seeds are usually dried in the sun for about 3 days before sowing, and then selected with muddy water to select some of the fuller seeds. When such seeds germinate, they will be very strong. Usually there are some bacteria in the surface seconds of the seeds, so it is best to disinfect the seeds before sowing, generally using 6 grams of evil enemies, adding 5.1kg of water, and then soaking 3.1kg of seeds in it for about 4 days; you can also use 26 per cent prochloraz 4010 solution; you can also use 81 per cent fungicide 2010MI3010 times; and 11 per cent soak seeds in 4010 times for about 4 days. This will kill the germs on the surface of the seed.

Fourth, sowing seeds

If the sowing time is too early, the seedling age will be easy to age, so the tillering time will be slower and less; if the sowing time is too late, the seedlings will be relatively weak and slow to turn green. Generally, it is the best time to sow seeds from May 6 to 11, and the seedling age is 36mer 41 days. High-quality seeds can be sown with 2.6 kilograms per mu. Like the average seed, most of them use 3.6 kilograms.

Fifth, watering

Before the growth of the clover, it is necessary to grow in drought, which will be beneficial to the growth of the root. After the three leaves of the Shanghai card, if there is a lack of nutrition, it will be prone to blight. So when the two leaves grow into one heart, you should give the broken milk fertilizer. You can use the formula fertilizer backed up to 46 per mu, and you can also use 3.1 kg to 5.1 kg of urea. You need to water once, but the amount of water should be less. When the three leaves grow out of one heart, it is necessary to apply fertilizer to promote tillers. 10.1 kg of urea can be used per mu, and 13 kg to 16 kg of formula fertilizer can be used. At this time, one less watering can make the seedlings tiller better.

The cultivation of rice seedlings is very important and should not be underestimated. If the seedlings cultivated are relatively thin, the growth in the later stage may also have a certain impact. The cultivation of seedlings requires the extra attention of rice farmers.