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观察蔬菜塑料大棚内种植５种作物后结果表明，玉米吸收养分较多，对降低土壤电导率（ＥＣ）值效果较好。柽麻虽不能降低土壤ＥＣ值，但它对增加土壤养分和培肥土壤极为有利。黄瓜吸收养分量较大，亦可减少土壤ＥＣ值。在上述三种茬口上分别种植番茄后，长势、产量和品质以柽麻茬最好，玉米茬番茄植株较矮，易脱力发黄，产量低，品质差；黄瓜茬番茄介于两者之间。发生番茄连作障害的土壤上种植大蒜和菠菜，均可减轻危害。因此，在已发生作物生育障害的保护地应适当轮作换茬。
The results of observing five kinds of crops planted in vegetable plastic greenhouse showed that maize had more nutrients and had better effect on reducing soil electrical conductivity (EC). Cannabis Although it can not reduce the soil EC value, but it is extremely beneficial to increase soil nutrients and soil fertility. Cucumber to absorb larger amounts of nutrients, but also reduce soil EC value. After planting tomatoes on the three stubble crops respectively, the growth, yield and quality of the stubble stubble were the best. The stubble of corn stubble was shorter, the yield was lower and the quality was poor. The cucumber stubble tomato was between the two . Planting garlic and spinach on soils contaminated with tomato can reduce the harm. Therefore, in the event of crop protection failure should be properly crop rotation stubble.