摘要
本文研究了吉林省长白山区的另一类主要栽参土壤——白浆土人参床土的物理特性及其对人参生长的影响作用。结果表明,白浆土人参床土的物理特性基本可以满足人参生长对床土物理性状的全面要求。但与暗棕壤人参床土相比,其质地较粘,团聚体质量不高,持水性强而供水能力较差;床土的砂粘比例(物理性砂粒与物理性粘粒之比)和其物理特性的好坏有着明显的正相关关系,并以6:4为宜;床土的水分状况与人参红皮病的发生密切相关,而白浆土床土的质地粘重与团聚体质量差等不良物理性状,是造成其含水过多、排水不畅和红皮病发生的根本原因。
This paper deals with the physical properties of Ginseng bed soil frcai planosol. The results showed that: 1) the pysical properties were similar to that of Dark brown earth except for the clayey texture and lower water supplying capacity; 2) the phvsical sand/physical clay ratio showed highly positive correlation with the physical properties and withal 6 :4 was fine; 3) the bad properties, such as clayey texture and unstable granules give a rise to excese water content and further resulted in occurrance of Ginseng disease of red Coat,
出处
《吉林农业大学学报》
CAS
CSCD
1992年第4期59-65,共7页
Journal of Jilin Agricultural University
关键词
白浆土
人参床土
砂粘比
物理性能
Planosol, Ginseng bed soil , Sand/clay ratio, Ginseng red coat disease
