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基质栽培花菜以酰胺态氮和硝态氮为氮源与以铵态氮和硝态氮为氮源及以硝态氮为单一氮源的三个营养液配方试验中,前者花菜生长量大,叶色深绿;较后两者增产幅度分别为33.4％和52.4％。后两者产量差异不显著。投入与产出比依次为1:2.1,1:1.6,1:1.3。
The results showed that: (1) The cauliflower cultivars with the substrate culture of amylose and nitrate nitrogen as the nitrogen source and ammonium nitrate and nitrate as the nitrogen source and the nitrate nitrogen as the sole nitrogen source were tested in three nutrient solutions, Dark green leaves; the latter two yield increase of 33.4% and 52.4% respectively. The difference between the latter two was not significant. The ratio of input to output is 1: 2.1,1: 1.6,1: 1.3.