氮磷钾肥配施对甘草生物产量的肥效研究  

Application of N,P,K Fertilizers on Biomass of Glycyrrhiza uralensis Fisch

作　　者：阿依夏木.沙吾尔 李春越[2] 贾宏涛[1] 阿丽耶.艾则孜 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052 [2]陕西师范大学旅游与环境学院,西安710119

出　　处：《新疆农业大学学报》2014年第5期362-368,共7页Journal of Xinjiang Agricultural University

基　　金：新疆农业大学校前期资助项目(XJEDU201201);国家自然科学基金项目(41361069);新疆维吾尔自治区土壤学重点学科资助

摘　　要：通过田间小区试验,研究不同水平氮磷钾肥的配比施用对甘草地上、地下生物量的肥效。结果表明,不同水平氮磷钾肥的配比施用对甘草生物量有明显肥效,不同处理的肥效对比为:偏高肥水平(尿素140kg/hm2、过磷酸钙200kg/hm2、硫酸钾160kg/hm2)>中肥水平(尿素70kg/hm2、过磷酸钙100kg/hm2、硫酸钾80kg/hm2)>高肥水平(尿素280kg/hm2、过磷酸钙400kg/hm2、硫酸钾320kg/hm2)≥低肥水平(尿素35kg/hm2、过磷酸钙50kg/hm2、硫酸钾40kg/hm2)>对照(CK)。所有指标在中肥水平处理和偏高肥水平处理中增加相对最为明显,比CK增加的比例为:株高74.43%和66.32%,茎干重55.43%和51.09%,复叶数100%和90.9%,叶干重88.11%和74.13%,根长8.64%和6.93%,根直径24.17%和23.63%,根干重21.47%和20.02%,根冠比48.15%和44.44%。The effect of N,P,K fertilizers application rate on above ground and underground biomass of Glycyrrhiza uralensis Fisch was researched in a field plot experiment.The results showed that the fertiliz-er efficiency of N,P,K by comparison were sequenced as follows：slightly high fertilizer level （urea 140 kg/hm2 ,phosphate 200 kg/hm2 ,lemery 1 60 kg/hm2 ）〉 moderate fertilizer level （urea 70 kg/hm2 , phosphate 100 kg/hm2 ,lemery 80 kg/hm2 ）〉 high fertilizer level （urea 280 kg/hm2 ,phosphate 400 kg/hm2 ,lemery 320 kg/hm2 ）≥ low fertilizer level （urea 35 kg/hm2 ,phosphate 50 kg/hm2 ,lemery 40 kg/hm2 ）〉CK.The indexes of treatment with moderate fertilizer level and that of treatment with slight-ly high fertilizer level were increased significantly.Compared with CK,the proportion of increasing was as follows：plant height increased by 74.43% and 66.32%,the stem weight increased by 55.43% and 5 1.09%, leaf number increased by 100% and 90.9%,leaf weight increased by 88.1 1% and 74.13%,root length in-creased by 8.64% and 6.93%,root diameter increased by 24.17% and 23.63%,root weight increased by 21.47% and 20.02%,root top ratio increased by 48.15% and 44.44%.

关 键 词：氮磷钾肥 配施 甘草 生物产量 

分 类 号：S567.239[农业科学—中草药栽培]