采用一些小技巧,能改善棚室内蔬菜生长条件,提高产量和品质。以下10个小技巧效果十分显著。 1 消毒园土。每平方米床土用3～5g多菌灵或溴化甲烷处理,可杀灭土中病原物,防止土传病害发生。 2 双层保温。在大棚内加盖地膜,能提高2℃地温;在大棚内设小拱棚,小拱棚内温度可保持在15℃以上。 3 改进架膜方式。用铁丝代替竹杆、竹片架膜,用塑料绳代替竹杆为攀附物,能减少遮光,提高光合效率。 4 改进灌水方式。采用滴灌或地膜下灌水代替传统的浇灌方式,可使棚内空气的相对温度降低10％以上,使病害减轻。 5 选用无滴棚膜。此种棚膜上不会凝聚水滴,透光率可达98％以上。如用一般棚膜,可在棚膜上涂“灭滴灵”或每日坚持清扫,以消除膜上水滴,增强光照。 6 撒施草木灰。在大棚内经常撒施于 Using some tips to improve indoor greenhouse vegetable growth conditions, improve yield and quality. The following 10 tips is very significant. 1 disinfection garden soil. Per square meter of bed soil with 3 ~ 5g carbendazim or methyl bromide treatment can kill the soil pathogens to prevent soil-borne diseases. 2 double insulation. In the greenhouse cover film, can increase the ground temperature 2 ℃; set in the shed small arch, small arch shed temperature can be maintained above 15 ℃. 3 to improve the film mode. Replace the bamboo pole with wire, bamboo film rack, with plastic rope instead of bamboo pole climbing objects, can reduce shading, improve photosynthetic efficiency. 4 to improve irrigation methods. The use of drip irrigation or submural irrigation instead of the traditional way of irrigation, can shed air relative humidity reduced by 10%, so that the disease alleviate. 5 use no drop film. This studio film will not condense water droplets, light transmittance of up to 98%. Such as the use of the general shed film, the film can be coated in the film “metronidazole” or adhere to the daily cleaning, to remove the membrane drops, enhance the light. 6 spread grass ash. In the shed often spread to