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NPK配施对莴苣产量品质的影响研究
A STUDY OF THE EFFECTS OF COMBINED APPLICATION OF NPK ON THE YIELD AND QUALITY OF LETTUCE
【摘要】 在酸性灰棕紫泥土上施用N20.7,P12,K36g/m ̄2(1.73:1:3)莴苣的产量、品质和经济效益最高。
【Abstract】 In a field experiment with lettuce on acid gray brown earth,various combina-tions of NPK were tested.Taking into consideration the yield and quality of the crop andits economic efficiency,the rate combination of 20.7g N plus 12g P2O5 and 36 g K2O perm ̄2 (with a ratio of 1.73:1:3)seemed most desirable and is recommended.
【关键词】 莴苣;
平衡—施肥;
氮;
磷;
钾;
【Key words】 nitrogen; phosphorous; potassium; head lettuce; balance-fertilizing;
【Key words】 nitrogen; phosphorous; potassium; head lettuce; balance-fertilizing;
- 【文献出处】 西南农业大学学报 ,JOURNAL OF SOUTHWEST AGRICULTURAL UNIVERSITY , 编辑部邮箱 ,1996年04期
- 【分类号】S636.206.2
- 【被引频次】14
- 【下载频次】74