乌拉尔甘草营养特征与需肥规律研究

Nutrient properties and fertilizer requirement regularity of Glycyrrhiza uralensis Fisch

摘要: 对乌拉尔甘草营养特征与需肥规律研究结果表明，N、P、K与Ca配施可显著提高乌拉尔甘草产量，其生长期内N、P、K平均吸收比例为1：0.55：0.34，每生产lt乌拉尔甘草其根、茎平均吸N 20.9kg、P₂O₅ 11.5kg和K₂07.2kg，且生长后期P吸收比例明显增大。

Abstract: The nutrient properties and fertilizer requirement regularity of Glycyrrhiza uralensis Fiseh were studied．The results show that the proportional application of N，P，K，and Ca Call improve the yield of Glycyrrhiza uralensis Fisch，and the average absorptive ratio of N，P and K is 1：0.55：0.34，the plant assimilates 20.9kg N，11.5kg P₂O_s and 7.2kg K₂O for each 1000kg item ，and the P absorbed proportion increases significantly at the later growth period．