摘要
测定了雅安严桥鱼腥草种植基地土壤的基本理化性质 ,结合田间肥料效应试验 ,分析了土壤的肥力状况 ,结果表明 :土壤pH =5 15～ 6 14 ,为酸性和弱酸性 ;土壤质地是以中壤土和轻壤土为主的壤质土 ,土壤酸碱性和质地都适于鱼腥草的生长。但土壤养分不平衡 ,氮和钾是目前基地土壤的养分限制因子 ;而习惯性施用有机肥在一定程度上又存在供肥不足 ,因此 ,在鱼腥草生长前期 (2～ 5月 ) ,施用有机肥的同时最好配合施用一定量的速效氮肥和钾肥 。
Basic physicochemical property of soil on the planting base of Houttuynia cordata thunb. in Yanqiao town of Yaan were determined and linked with fertilizer effect from field experiment, then soil fertility was analysed. Results show that the soil is acidity and ebb acidity because soil pH varies from 5 15 to 6 14, and soil texture is loam, so the soil acid alkaline and texture are suitable for the growth of Houttuynia cordata thunb. But the soil nutrient is out of balance, N and K are widespread lack and become the restrictive elements. Moreover, the soil nutrients are insufficiently offered to a certain extent even organic fertilizers are applied habitually. Therefore, during the prophase growing of Houttuynia cordata thunb. (from February to May) it is good to employ coordinately nitrogenous fertilizer and potash fertilizer with their suitable dosage when organic fertilizers are used. While the use of phosphate fertilizer should be controlled.
出处
《四川农业大学学报》
CSCD
2002年第3期235-238,共4页
Journal of Sichuan Agricultural University
基金
四川省科技厅重点攻关项目
关键词
鱼腥草
土壤
肥料
药用植物
雅安严桥种植基地
HOUTTUYNIA CORDATA THUNB.
YAAN
FEASIBILITY OF SOIL
FEASIBILITY OF FERTILIZER.
