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在山东省寿光市和莱阳市两地大白菜和芹菜上的试验结果表明:配方为21-8-11S的狮马牌复合肥适合这两种叶菜类蔬菜的生长。在用氮量与传统施肥相同的情况下,21-8-11S复合肥处理的大白菜、芹菜较习惯施肥平均增产19.3%和35.9%;在复合肥料用量增加40%的情况下,大白菜、芹菜较习惯施肥平均增产16.0%、32.9%。高量复合肥处理比低量复合肥处理的蔬菜产量降低。合理的养分比例和合理的施肥量是叶菜类蔬菜增产的重要措施。
The test results on Chinese cabbage and celery from Shouguang City and Laiyang City in Shandong Province showed that the Sika brand compound fertilizer with formula 21-8-11S was suitable for the growth of both leafy vegetables. Under the same nitrogen application rate, the average yield of Chinese cabbage and celery treated with 21-8-11S compound fertilizer increased by 19.3% and 35.9%, respectively. Compared with the conventional fertilization, when the amount of compound fertilizer increased by 40% Celery habitat fertilization than the average increase of 16.0%, 32.9%. High-volume compound fertilizer treatment than the low amount of compound fertilizer to reduce the yield of vegetables. Reasonable proportion of nutrients and a reasonable amount of fertilizer is an important measure for increasing yield of leafy vegetables.