液体肥料和固体肥料对大白菜产量和养分吸收效应比较研究  

Effects of Different Rate of Fluid Fertilizer and Solid Fertilizer Applied on Yield and Nutrient Absorption of Chinese Cabbage

作　　者：彭智平[1] 操君喜[1] 杨少海[1] 李文英[1] 詹愈忠[1] 杨林香[1] 

机构地区：[1]广东省农业科学院土壤肥料研究所/广东省养分资源循环利用与耕地保育重点实验室,广州510640

出　　处：《中国农学通报》2010年第5期133-137,共5页Chinese Agricultural Science Bulletin

基　　金：广东省科技计划重点项目"农业生产资料减量化投入关键技术研究与示范"(2008A020100021);广东省科技计划项目"蔬菜专用高浓度液体复合肥的研制和高效施用技术"(2006B20301049);广东省财政厅科技三项费用项目"降低蔬菜硝酸盐新技术和新产品的产业化"(2006粤财工143号)

摘　　要：通过田间试验比较大白菜施用不同用量的液体肥料和等氮磷钾养分的固体肥料对产量和养分吸收的影响。结果表明：在相同氮磷钾总用量的条件下，液体肥料处理的产量均显著高于固体肥料处理，增产量达318~761kg/667m2，相对增产19.3%~50.0%。在氮磷钾总用量小于24.75kg/667m2时，液体肥料处理氮吸收量比固体肥料处理有明显的增加，相对增加达8.6%~44.5%。液体肥料处理磷吸收量比固体肥料处理均有明显的增加，相对增加达13.9%~75.3%，而钾吸收量液体肥料处理多数情况下高于固体肥料处理，相对增加值达8.6%~53.4%。在等产量（1000~3000kg/667m2）水平下，施用液体肥料可比施用固体肥料节省氮磷钾用量29.8%~36.3%。The field experiment of different rate of fluid fertilizer and solid mixed fertilizer applied on Chinese cabbage was conducted to study the yield and nutrient absorption. The results showed that the application of fluid fertilizers was more effective. Compared with the treatments of equivalent solid mixed fertilizer applied, the yield of the Chinese cabbage were increased by 19.3%-50.0%, and the absorption rate of N, P205 and K20 were enhanced by 8.6%-44.5%, 13,9%-75.3%, 8.6%-53.4% respectively. Meanwhile, the rate of fluid fertilizers were saved by 29.8%-36.3% under the same yields level（1000-3000kg/667m2）.

关 键 词：液体肥料 固体肥料 大白菜 产量 养分吸收 

分 类 号：S145.2[农业科学—肥料学]