In the early spring rice breeding season, low-temperature cold waves or continuous rain often occur. If the water layer of Putian is not properly managed, the seedlings may be weakened, the root absorption capacity may be impaired, the water balance between the upper and lower body of the seedlings may be disordered, and the pathogens may also invade due to weakness of the seedlings. Bad. Its prevention measures are as follows:

Permeable ventilation in paddy fields is not only water-permeable, in order to facilitate seed germination and emergence, but also to ventilate, so that the seedlings can take root and grow, which can effectively prevent rot. The specific approach: first the rice field cultivating the whole fine, from the ditch to do squat, apply enough base fertilizer, the smashing of the smashing mud, preliminary smashing; then soaked in water, and then further leveling the smashing.

Plan for childbirth to grasp the appropriate sowing date and determine the appropriate age to avoid rot. The temperature required for the normal emergence of rice is 15°C. Therefore, it is advisable to start planting when the temperature rises steadily to 12°C in the open field. If the eel is raised earlier, the temperature is lower, and the growth of rice seedlings is slower, the eel age should be longer; if the eel is late, the temperature is higher, rice seedlings grow faster, and the eel age should be shorter.

The sowing amount of seeding sowing should be determined according to the age of the seedlings and the temperature of the seedlings. In principle, it is required to dilute and sow uniform seeding so that each seedling can obtain sufficient sunlight, air and nourishment, and thrive. If the seeds are planted densely, the amount of light received by the seedlings in the later period will be reduced, affecting the assimilation, reducing the rooting power, and the seedlings will not be strong and easy to rot. Under normal circumstances, young seedlings within 20 days of spring rice fields will be planted with 180-200 kg per acre. Seedlings with a seedling age of about 30 days will grow 80-100 kg per acre.

Cultivating strong and strong people is the basis for high yield of rice, and it is also a prerequisite for preventing rotting. Wet breeding methods can be used to cultivate age-appropriate bragging. In the up seedling stage, irrigation is generally conducted only in the Tiantiangou, and the field surface is kept moist and aeration is not performed, but the seed is quickly rooted and established. During the rooting period, it is necessary to have a flexible understanding of the water layer and prevent freezing and sun protection. Keep the water in Putian and ventilate it to protect the seedlings.

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