In the early spring rice breeding season, low-temperature cold or cloudy rain often occurs. The improper management of the Putian water layer can cause the seedlings to weaken and their root absorption capacity to decline. The water balance between the upper and lower shoots of the seedlings is unbalanced, and the germs are also invaded by the weakness of the seedlings, causing the rice to rot. The following is a summary of the prevention of rotting in early spring: 2. Plan for childbirth. Grasp the appropriate sowing date and determine the appropriate age to avoid rotting. The temperature required for the normal emergence of rice is 15°C. Therefore, it is advisable to begin sowing when the temperature rises steadily to about 12°C when the rice is exposed in open fields. If the childbearing season is early and the temperature is low, the growth of rice seedlings is slow, and the age of the rice should be appropriately longer. When the temperature is higher, the rice seedlings grow faster and the younger ones should be shorter. 4, nurture strong and strong. Cultivating strong and prosperous people is the basis for high yields in 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, so that the seeds are quickly extended to stand and stand. 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, so as to keep the seedlings safe. In the event of cold waves, deep water should be used to protect the seedlings and timely drainage and ventilation are required. In the event of rain and rain, we must look for openings to open water, so as not to flood the fields. Cultivating strong and preventing rotting is closely linked and inseparable. Medical Equipment Disposal,Syringes Needles Sizes,Disposable Syringe,Insulin Syringe FOSHAN PHARMA CO., LTD. , https://www.full-pharma.com
1, ventilation field. It is necessary to flood the fields to facilitate the emergence of seed germination and ventilation to facilitate the growth of seedlings, which can effectively prevent rotting. The practice is: First, make a thorough preparation of the cultivator, and use the bottom of the plant to make a full-fledged fertilizer. The smashing and smashing of the smashing mud shall be preliminary and the smashing shall be carried out; then, the water shall be soaked, and the smashing shall be further smoothed.
3, thin broadcast uniform broadcast. The amount of seedlings planted in Putian should be determined by the age of the seedlings and the temperature during the breeding season. In principle, it is required to dilute sowing and sowing, so that each seedling can get enough sunlight, air and nourishment to achieve robust growth. If the seeds are planted densely, the amount of light received by the seedlings in the later period will be reduced, affecting the carbon assimilation, reducing the rooting power, and the seedlings will be weak and easy to rot. Generally speaking, spring seedlings within 20 days, 180-200 kilograms per acre seedlings; seedlings about 30 days old, 80-100 kg per acre.