What happened when the rice seedlings were planted in the field?

It is precisely because of uneven fertilization that rice seedlings grow poorly.

Rice seedling

During the day, the temperature should be controlled at 22-25℃, and those exceeding this standard should be ventilated in time, and kept at 10- 15℃ at night, and pay attention to heat preservation.

During the period from 2 to 3 leaves, the daytime temperature is controlled at 20-23℃ and the nighttime temperature is controlled at 15- 18℃. At this time, the ability of seedlings to resist external invasion is weak. Pay attention to ventilation and temperature control during the day, squat seedlings to promote roots, and pay attention to heat preservation and antifreeze at night.

The temperature outside the shed is high during the day when the seedlings reach the 3-4 leaf stage, which is also the key period for seedling hardening. Therefore, in order to increase the ventilation, large ventilation or full ventilation can be generally used without frost.

Fertilization method: Pay attention to the method when fertilizing. First, pay attention to the growth of rice when applying fertilizer, and judge whether fertilization is needed according to different growth conditions. Secondly, we should pay attention to the amount of fertilization, which requires us to fertilize according to the fertility of rice fields and the growth of rice, and we can choose bird's nest water-soluble fertilizer.

Fertilization types: There are not many kinds of fertilizers used for rice, and they are all targeted according to different stages of growth and development. Generally, it is compound fertilizer, urea, silicon fertilizer, bird's nest microbial fertilizer, potassium fertilizer, organic fertilizer, phosphate fertilizer and nitrogen fertilizer. However, the use of nitrogen fertilizer must be appropriate, otherwise there may be dead seedlings, and finally the taste of rice is also very bad.

Key points of fertilization: When applying fertilizer, try to use lateral deep fertilization, so the first benefit of fertilization is to improve the utilization rate of fertilizer and reduce the amount of fertilizer. The second is to promote the growth and development of rice. Third, it can reduce the prevalence of rice, reduce environmental pollution and increase yield. Pay attention to the spacing of rice, the proportion of fertilization and paddy soil when applying deep horizontally.