各种农膜对光的吸收和反射规律不同,对农作物的生长及杂草、病虫害、地温的影响也不一样,所以应科学地选用各种农膜。 黑色:用于杂草严重的地块或高温季节栽培夏萝卜、白菜、菠菜、秋黄瓜、晚番茄等。 红色:覆盖胡萝卜,可使肉质根迅速膨大;用于韭菜栽培,可使韭菜 A variety of plastic film on the light absorption and reflection of different laws, the growth of crops and weeds, pests and diseases, the impact of ground temperature is not the same, it should be scientifically selected a variety of plastic sheeting. Black: Summer radish, cabbage, spinach, autumn cucumber, late-night tomato and more are used for the weeds in severe land or in hot season. Red: covering carrots, fleshy roots can be swollen; for leek cultivation, can leek