耕作与栽培2025，Vol.45Issue(11)：22-27,6.
氮磷钾配施对贵州高山冷凉大白菜产量、养分吸收及利用的影响
Effects of N,P and K Fertilization on Yield,Nutrient Absorption and Utilization of Alpine Vegetable Chinese Cabbage of Guizhou Province
摘要
Abstract
To investigate the effects of combined nitrogen,phosphorus,and potassium application on the yield,nutrient up-take dynamics,and utilization efficiency of Chinese cabbage,a high-altitude cool-season vegetable in Guizhou,and to pro-vide a scientific basis for efficient fertilization for high-yield production,a field experiment was conducted in Weining County,Guizhou Province.Using Chinese cabbage as the test material,a"3414"field experiment was carried out to study the effects of different N-P-K combinations on yield,economic benefits,nutrient absorption,and utilization efficiency.The results showed that the yield of Chinese cabbage under different treatments increased continuously during the growth period,with the T11(N3P2K2)treatment achieving the highest yield of 61036.50 kg/hm2,surpassing other treatments.The biomass of Chinese cabbage across all treatments exhibited an S shaped trend:a slow initial increase,followed by a rapid rise,and then a slower increase.The nitrogen,phosphorus,and potassium content in Chinese cabbage under all treatments decreased with prolonged growth time.The cumulative uptake of N,P,and K followed a trend similar to that of biomass.Nutrient use ef-ficiency of nitrogen,phosphorus,and potassium varied among treatments.Considering yield,economic benefits,nutrient ab-sorption,and utilization efficiency,the T6 treatment was identified as the most suitable fertilization strategy under the experi-mental conditions.关键词
高山冷凉蔬菜/大白菜/'3414'试验/产量/养分Key words
alpine vegetables/Chinese cabbage/'3414'experiment/yield/nutrients分类
农业科技引用本文复制引用
王洪亮,芶久兰,张萌,柳玲玲,顾小凤,魏全全..氮磷钾配施对贵州高山冷凉大白菜产量、养分吸收及利用的影响[J].耕作与栽培,2025,45(11):22-27,6.基金项目
贵州省科技计划项目"威宁"三白"绿色高效养分管理关键技术研究与示范"(黔科合支撑[2020]1Y091号) （黔科合支撑[2020]1Y091号）
