摘要
为测试施用黄腐酸钾对春青稞“苏拉青2号”产量、肥料利用率及土壤养分含量的影响,在西藏拉萨市林周县开展黄腐酸钾施用田间试验,结果表明:对比全肥区处理⑤,施用测土配方复混肥22 kg/667 m2+追肥尿素7.5 kg/667 m2;在同等养分投入下,处理⑥施用黄腐酸钾未表现出增产效果;在同等水平氮、磷、钾养分肥料施入下,处理⑥降低肥料综合利用率、降低氮、磷、钾3种主要养分的肥料利用率指标;施用黄腐酸钾后,土壤有机质、全氮、全磷养分含量及土壤pH值提高,但土壤全钾养分含量略有下降。
In order to test the effects of potassium fulvate acid application on the yield,fertilizer utilization rate and soil nutrient content of spring highland barley Sulaqing No.2,a field experiment was conducted in Linzhou County,Lhasa City.The results showed that compared with the treatment⑤(application of soil testing formula compound fertilizer 22 kg/667 m2+topdressing urea 7.5 kg/667 m2),under the same nutrient input,treatment⑥(application of potassium fulvic acid)did not show a yield increase effect.Under the same level of nitrogen,pHospHorus,potassium fertilizer applica⁃tion,treatment⑥reduce the comprehensive utilization rate of fertilizer,reduce the fertilizer utilization index of nitrogen,pHospHorus,potassium three main nutrients.After applying potassium fulvic acid,soil organic matter,total nitrogen,total pHospHorus nutrient content and soil pH value increased,but soil total potassium nutrient content decreased slightly.
作者
袁成立
张海芳
田科兴
YUAN Chengli;ZHANG Haifang;TIAN Kexing(Lhasa Agricultural Technology Extension Station,Tibet Lhasa 850000,China;Agricultural Technology Extension Service Center of Tibet Au-tonomous Region,Tibet Lhasa 850000,China;Linzhou County Agricultural Technology Extension Station,Tibet Lhasa 850000,China)
出处
《西藏农业科技》
2023年第4期23-28,共6页
Tibet Journal of Agricultural Sciences
关键词
黄腐酸钾
春青稞
肥料利用率
土壤养分
potassium fulvic acid
spring highland barley
fertilizer utilization rate
soil nutrient
作者简介
袁成立(1993-),男,助理农艺师,主要从事土壤肥料工作,E-mail:929677150@qq.com。
