大棚土壤连作年限对黄瓜产量及品质的影响

分别以连作黄瓜４， ２５ 年的大棚土壤为处理， 以露地菜田非连作土壤为对照进行盆栽黄瓜试验， 研究不同连作年限土壤对黄瓜产量及其品质的影响， 结果表明： 大棚连作４ 年土壤对黄瓜产量及其品质没有显著影响， 而连作２５ 年的土壤对黄瓜的产量及其品质均有显著的不良影响， 其产量显著降低， 品质变劣， 土传病害发病率高。

EFFECT OF DURATION OF PROTECTED CULTIVATION ON YIELD OF CUCUMBER1

Pot-cultivated experiment was done by the treatment of the soil in plastic covering where cucumbers of continuous crops have been grown and ncrops have been grown for 25 years, the ck of out door usetable field of non-continuous crops. The effect of the soil of continuous crops times to cucumbers yield and quality. The results demonstrate: cucumbers field and quality aren′t affected. Significantly by the soil in plastic covering of 4 years continuous crops ,and it is affected significantly by the soil of 25 years continuous crops, its yield is lessened quality sets. worse The percentage of soil-borne disease gets higher $$$$