1. cultivator soil. In combination with cultivator before freezing, the soil is cultured on the root side, which can loosen the soil, protect the root system, and enhance the vitality of the root system. The cultivator depth should be 7-10 cm. 2. Qing ditch pits, lifts warming. Rainy weather, high humidity in the field, coupled with insufficient light, are detrimental to the growth and development of vegetables. At this time, the management focuses on freezing and warmth, clearing trenches, clearing the trenches, gutters, gutters, and lifting away from the car, enhancing the air permeability of the car and increasing the ground temperature. It is not only beneficial to the winter's antifreeze and cold resistance, but also beneficial to the coming year. Anti-mite moisture in the spring. 3. Apply more organic fertilizer and less nitrogen fertilizer. Spraying 0.2%-0.3% potassium dihydrogen phosphate solution 1-2 times before low temperature can enhance the cold resistance of vegetables. Spraying 400-500 kilograms of thin human or animal waste water per acre can reduce soil freezing and improve the cold resistance of vegetable roots. 4. Smoke or wind barriers. Before the advent of frost, the accumulation of weeds, straw, litter and other accumulations of smoke in the upwind can effectively disperse the cold currents and protect the vegetables from freezing damage. In addition, 1-1.5-meter-high windshield barriers should be made on the north side of vegetable plots for straw, etc. to prevent cold winds from directly invading vegetables and reducing freezing damage. Single Dome Halogen Operating Lamp
Single Dome Halogen Operating Lamp with excellent color temperature control.By using color temperature compensation technology, the color reversion is uprised, and it is more suitable for the illumination of the complex surgery such as encephalon surgery and thorax surgery.Single Dome Halogen Operating Lamp are convenient to use. Reflector system designed in CAD; color temperature close to that of sunlight; making the tissue surface visible under natural color; depth of tubular light beams up to over 1200mm; uniform illumination effectively eliminating shadows under any circumstance.
Single Dome Halogen Operating Lamp,Single Dome Ceiling Operating Light,Single Dome Ceiling Ot Light,Single Dome Surgical Room Lamp Shandong Lewin Medical Equipment Co., Ltd. , https://www.lewinmed.com
Vegetables keep warm and warm for good over winter