热带作物学报2017，Vol.38Issue(6)：1064-1068,5.DOI:10.3969/j.issn.1000-2561.2017.06.013
水稻育秧基质理化性状对秧苗品质的影响
Effects of Physical and Chemical Properties of Rice Seedling Substrate on Seedling Quality
摘要
Abstract
In this paper,cassava dregs,sugarcane filtrate and rice paddy soil were used as the raw materials to make rice seedling substrates.The effects of physical and chemical properties of rice seedling on seedling quality were explored by using Guiyu No.9 as the tested varieties.The results showed that there were significant or extremely significant correlations between the traits of the seedling and the physical and chemical properties of the substrate,except for the number of adventitious roots and the number of seedlings per unit area.The decrease of bulk density and the increase of porosity extent significantly increased the fresh weight of seedling,plant height,leaf area and unit volume of seedling,but the root twisting power decreased significantly.The neutral pH of the substrate had no significant effect on seedling quality,but in the range of 2.7 mS,the increase of substrate conductivity had a significant effect on plant height,leaf area and fresh weight per unit volume of substrate production.The alkaline hydrolysis N,available P,available K and organic matter greatly effected the plant height,SPAD value,leaf area,and leaf area per unit volume of seedling,yet significant negative correlation was found on root twisting power,among which,available P also had significant or even significantly effects on seedling stem width,leaf age,dry weight of over ground part and rooting ability.关键词
水稻/机插秧/育秧基质/理化性状/秧苗品质Key words
Rice/seedling for mechanical transplanting seedling nursery substrate/physical and chemical properties/seedling quality分类
农业科技引用本文复制引用
郝向阳,梁天锋,韦善清,江立庚..水稻育秧基质理化性状对秧苗品质的影响[J].热带作物学报,2017,38(6):1064-1068,5.基金项目
国家现代农业产业技术体系广西创新团队(水稻)(No.NYCYTXGXCXTD-01). （水稻）
