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以池栽形式,覆膜区667m~2产黄瓜7151kg,比对照增产23.2％。覆膜明显促进黄瓜生育前期的干物质积累和对各营养元素的吸收,初花期二者分别比对照增加75.0％和79.2％(5种元素平均);养分吸收高峰比对照提前,出现在采收至采收盛期,5种元素吸收强度平均为420、0g/667m~2·d,比对照增加40.1％;覆膜能提高土壤的供肥能力,其中CaO、MgO始终大幅度高于对照,K_2O含量偏低。
In the form of pool planted, film area 667m ~ 2 produce 7151kg cucumber, yield 23.2% more than the control. The plastic film significantly promoted the accumulation of dry matter and the absorption of nutrients at the early growth stage of cucumber. Both of them increased 75.0% and 79.2% (average of 5 kinds of elements) in the early flowering stage compared with the control. The peak of nutrient absorption was earlier than that of the control, During the harvesting period, the average absorption intensity of the five elements was 420 and 0 g / 667m ~ 2 · d, respectively, which increased by 40.1% compared with the control. The plastic film could improve soil fertility. CaO and MgO were always higher than the control, K_2O content is low.