保证充足的光照,是进行高产的要求,在无人工加温的冬暖式塑料温室大棚中,光照不足是限制产量的一大因素.建议在棚内安装1000瓦的日光灯进行补光.日光灯悬挂在棚中间,是否挂两排或多排要视棚的宽距为而定.灯距作物顶端35厘米以上,每隔3-5米左右安装一盏,一般上午和下午各亮灯一次,开灯时间视阳光照射情况而定,以最大限度地保证作物光合作用对光的需求.同时,光照充足的温室大棚作物病虫害也较少. 还要添加增温设施,冬季或早春,外界气温波动大,遇大雪或寒流时,温室大棚棚内作物常遭受低温危害,生长不良.建议特殊低温天气时,为保证棚内基础温度(作物不受冷害),开启增温设备,以防减产.主要方式有:电热线提高地温,电暖气或炉子增温.还有一种简便易行的方法是在大棚内放置水袋(充满水的塑料袋),利用水比热大的特点,白天水袋大量吸收太阳光能,并转化成热能贮藏起来,夜间逐渐释放出来,可提高棚温.还有就是适当提高二氧化碳浓度,在冬春季光照弱,温度低的情况下,人工施用二氧化碳有明显增产效果.最后还需要合理调节棚内湿度,有效的降湿方法有:(1)温度低湿度大时,温室大棚棚内加温; Get plenty of light, is a requirement for high yield, in the absence of artificial heating DongNuanShi plastic greenhouses, the lack of light is a major factor to limit production. Suggestions on relative to install 1000 watts of fluorescent lamp light up. Fluorescent lamp hanging in the middle of the tent, whether two or more rows to the wide distance depending on the tent. Light from the top of the crop more than 35 cm, about every three to five meters to install a lamp, general lighting a time in the morning and afternoon and, turn on the light time depending on the sunlight conditions, to maximize the guarantee the demand of crop photosynthesis light. At the same time, sufficient sunlight greenhouse crop diseases and insect pests are less. Also add heating facilities, winter or early spring, the outside temperature fluctuation is large, heavy snow or cold snap, greenhouses, those crops often suffer from low temperature damage, bad growth. Suggest special cold weather, in order to ensure the relative basic temperature (crops from chilling injury), open the warming device, in case production. The main methods are: electric hotline to improve the ground temperature, electric heater or stove warming. There is a simple method is to be placed in the greenhouses water bag (plastic bags) filled with water, use of the characteristics of big water specific heat of water bag large absorb solar energy during the day, and go into heat energy storage, the night is gradually released, canopy temperature can be improved. There is increasing carbon dioxide concentration, weak in winter light, low temperature, under the condition of artificial fertilization carbon dioxide have obvious effect to increase production. The last also need to adjust the relative humidity of reasonable, effective reduced wet method are: (1) the temperature low humidity is big, the greenhouse to heat heating;