大中小棚蔬菜浇水,这是个科学问题,如前期气温较低又浇水过多,既影响温度的提高,也影响生长,还容易引起病害。蔬菜后期需水多,浇水不足也会影响生长,引起病害的发生发展。尤其是棚菜,在塑料膜覆盖下,形成了小气候条件。而水对小气候影响很大,所以浇水对丰产作用很大,要引起重视。具体浇水技术如下: Squatting vegetable watering, this is a scientific issue, such as pre-low temperature and excessive watering, both affect the temperature increase, but also affect the growth, but also easily lead to disease. Late vegetables require more water, lack of water will also affect the growth, causing the occurrence of disease development. In particular, shed vegetables, covered in plastic film, formed a microclimate conditions. The water has a great impact on the microclimate, so watering great effect on high yield, it is necessary to pay attention. Specific watering techniques are as follows: