寒旱农业科学2025，Vol.4Issue(4)：348-352,5.DOI:10.3969/j.issn.2097-2172.2025.04.010
兰州二阴地区磷肥施用量对紫叶莴笋产量和品质的影响
Effects of Phosphorus Fertilizer Application Rates on the Yield and Quality of Purple-leaf Lettuce in High-humid Mountain Areas of Lanzhou
摘要
Abstract
This study aimed to determine the appropriate phosphorus application rate for purple-leaf lettuce in the high-humid mountain areas of Lanzhou,providing a scientific basis for high-quality and efficient production as well as soil health improvement in lettuce production.4 treatments were included:low phosphorus(144 kg/ha),medium phosphorus(180 kg/ha),high phosphorus(216 kg/ha),and a control(CK,no phosphorus application),and application rate effect on the yield and quality of purple-leaf lettuce were studied.Results showed that compared with the control,plant height,stem diameter,yield,free amino acid content in stems,and vitamin C content under phosphorus treatments were increased by 5.34%to 11.48%,18.07%to 34.92%,37.80%to 52.44%,8.01%to 39.50%,and 4.08%to 12.91%,respectively.The medium phosphorus level(180 kg/ha)resulted in the highest values in plant height,stem diameter,single plant weight,yield,stem free amino acids,and vitamin C content,followed by the high phosphorus level(216 kg/ha).The nitrate content under the low phosphorus level(144 kg/ha)was 4.95%lower than the control,while the 180 and 216 kg/ha treatments increased nitrate content by 78.22%and 103.96%,respectively.In summary,the medium phosphorus level demonstrated the best performance in terms of key parameters,yield,and quality of purple-leaf lettuce in the high-humid mountain areas of Lanzhou.Under nitrogen application of 525 kg/ha and potassium oxide(K2O)of 375 kg/ha,the optimal phosphorus pentoxide(P2O5)application rate is 180 kg/ha,which is recommended for local adoption.关键词
紫叶莴笋/磷肥/二阴地区/产量/品质Key words
Purple-leaf lettuce/Phosphorus fertilizer/High-humid mountain area/Yield/Quality分类
农业科技引用本文复制引用
薛莲,杨思存,张鹏,王成宝,高铁功,闫宗芳..兰州二阴地区磷肥施用量对紫叶莴笋产量和品质的影响[J].寒旱农业科学,2025,4(4):348-352,5.基金项目
甘肃省现代农业科技支撑体系区域创新中心项目(2021GAAS53). （2021GAAS53）
