1. Strengthen water management and adjust temperature with water. Keep the field moist and reduce cold damage. To timely irrigation, it is best to water in the evening, and conditions should lead to warm water, such as wells, rivers, can effectively increase the temperature.
2, cover cold. Windshield can be set on the surface of the wind, covering the straw or film insulation.
3, increase the application of phosphorus and potassium fertilizers, especially the decomposed pigs, chicken manure gray manure and other warm farm manure, in order to promote robust growth of the crop, improve cold resistance. In winter, the temperature changes in a wavy manner. When the topdressing catches the temperature and rises again, it will take full advantage of the weather.
Surgical Instrument,Series Operation Microscope,Operation Instrument Microscope,Surgical Instrument Microscope
NINGBO VANCO INSTRUMENT CO.,LTD , https://www.vancoscope.com