Key points of Rice Seedling raising techniques

Rice is one of the main food crops in China, especially in the southern region of China. Generally, after the beginning of spring, most areas will start to prepare for rice seedling, so how can we do higher seedling rate when rice seedling? grow better? More resistant? The following are a few key points of rice seedling technology, which must be mastered when raising seedlings. Let's take a look together.

1. Seed treatment

Rice needs seed treatment before seedling, which can improve the germination rate of seeds and thus improve the emergence rate of rice seeds. First of all, it is necessary to sun the seeds; then soak the seeds with Baike or Prochloraz cartap in water for five or six minutes; then soak them with imidacloprid wettable powder for two days; finally, germinate, wait for about 80% of the rice seeds to sprout white, then you can sow. This can not only improve the emergence rate of rice, but also improve the resistance of rice to diseases and insect pests.

2. Water management

Water management during rice seedling stage is also very important. Generally, the water content of the nursery land does not need to be too much. Generally, it can soak the surface of the bed. Secondly, when the water content in the field decreases, it should be watered properly. The humidity should be maintained at the original position. The water content of rice seedling field should not be too much, otherwise it will affect the emergence of rice, and at the same time cause diseases and insect pests, resulting in seedling death. If it is dry land seedling, we should water in time when removing the film, irrigate the soil thoroughly, prevent seedling death, and at the same time maintain reasonable humidity in the seedling field during this period of emergence.

3. Fertilizer management

Fertilization management of rice seedlings is also divided into two ways: dry field and paddy field. Generally speaking, dry land seedling, the nutrients required are not very large, generally in the case of sufficient base fertilizer, the later stage is not required to carry out fertilizer, so as not to cause excessive fertility, resulting in seedling burning, but if the base fertilizer is not treated well, seedlings appear leaf yellow situation, then timely fertilization is needed. Paddy field seedling, then it needs fertilizer is relatively large, in the fertilizer, we usually apply fertilizer in accordance with the principle of thin fertilizer frequently, in order to prevent the occurrence of burning seedlings, promote seedling growth.

4. Pest control

In order to avoid the impact of diseases and insect pests on the growth of rice seedlings, it is generally best to spread 48% chlorpyrifos EC and 35% phoxim microcapsules before sowing, and the dosage is 150 ml and 1 kg per mu respectively. After sowing, in order to prevent underground pests from damaging rice seeds, we also need to spread an appropriate amount of 40% phoxim EC mixed bait around the seedling field. After the rice seedlings emerge, we mainly want to avoid the damage of blight, bacterial wilt and leaf-eating pests to the seedlings. We can use bensulfuron-methyl-dichloroquinclorac, imidacloprid WP and Junkeduke to control them respectively.

The above are the four key points when we sow rice seedlings, which are also the key to rice seedling. Generally, as long as these points are mastered, the cultivated rice seedlings are excellent, and they are also of great benefit to the later field operations. If you want to know more about rice planting technology, you can also leave a message to Xiaobian.