摘要
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。
This study was undertaken in field. The yield per 667m^2 for cucumber was 7151Kg by mulching and increased 23. 2% over control. Film mulching can significantly promote dry matter accumulation and various nutrient uptake of cucumber plants at the early stage of growth and development, and both increased 75. 0% and 79. 2% (average for five elements) compared with control, respectively at early blooming stage. The uptake peak of nutrient elements treated by mulching happened from harvesting to fully harvesting stage and prior to control, uptake intensity of five elements was on average of 420. 0 g/667mz. d and increased 40. 1% over control. Film mulching can also increase applying fertilizer capacity of soil, especially at the early stage of vegetative growth. This is correnspondent with rapid growth and much nutrient uptake at the early stage of growth and development, but uptake rate was largely different in various elements and CaO and MgO contents of them were higher than control from beginning to end, whereas K_2O content was lower than control.
出处
《园艺学报》
CAS
CSCD
北大核心
1993年第1期45-50,共6页
Acta Horticulturae Sinica
关键词
黄瓜
干物质积累
养分吸收
Film mulching
Cucumber
Nutrient uptake
Dry matter accumulation
