Seven measures to cultivate strong seedlings of early rice in South China —— The fright of 24 solar terms
But what is specifically mentioned here is that in order to win a bumper harvest of early rice, the southern region must cultivate strong seedlings and achieve strong resistance and high yield. At present, the main methods of cultivating strong seedlings are:
1. Sundrying seeds before sowing can promote the activity of enzymes in seeds, improve the viability of embryos and the permeability of seed coat, thus improving the germination rate of seeds.
2. Seed disinfection. This is a necessary preventive measure before sowing, which can protect early rice from rice blast and bacterial blight, thus reducing losses.
3. Soak seeds to accelerate germination. Accelerating germination is an important measure to prevent rotten and dead seedlings. There are many ways to accelerate germination. No matter which method is adopted, the seeds should absorb enough water, so as to keep warm and expose buds, cool and refine buds, and make the roots strong, white and tasteless, and germinate neatly.
4. Do a good job in paddy fields. Choose a plot that is sunny and leeward, with little grass and convenient irrigation as a seedling field, and use the method of drying and making water to make the top paste loose and the ditch deep and flat.
5. Sow at the right time. The temperature is required to be stable at 10- 12 degrees Celsius.
6. Rational fertilization. It is necessary to control the application of nitrogen fertilizer and increase the application of phosphorus fertilizer and potassium fertilizer.
7. Scientific irrigation. Pay attention to ventilation, take root and promote strong seedlings.