ZHANG Hao,HE Tengbing,LIN Changhu,et al.Analysis on Soil Physical Properties in Pinellia fields Under Different Rotation Systems in Guizhou Province[J].Research of Soil and Water Conservation,2015,22(03):127-131,136.
不同轮作方式黔产半夏土壤物理性状分析
- Title:
- Analysis on Soil Physical Properties in Pinellia fields Under Different Rotation Systems in Guizhou Province
- 分类号:
- S153
- 摘要:
- 为解决半夏连作障碍，探究最适宜的半夏轮作方式，以4种轮作方式[与太子参、何首乌（三年生）、金荞麦（短柱型）、苦参（一年生）轮作]土壤作为研究对象，分别对土壤容重、土壤自然含水量、土壤吸湿水、土壤机械组成进行测定。结果表明：与何首乌（三年生）轮作土壤含水量高出最适含水量6.4%，不适宜种植半夏，与金荞麦（短柱型）轮作土壤含水量为30.01%，表现为最适宜。半夏与不同中草药轮作的土壤容重在0.92～1.09 g/cm3之间，土壤容重与含水量之间呈现负相关的变化规律。土壤吸湿水含量总体表现为弱—中变异强度。从土壤机械组成来看，与太子参轮作、何首乌（三年生）轮作、苦参（一年生）轮作土壤物理性黏粒的含量分别为37.60%，44.60%，33.93%，与金荞麦（短柱型）轮作土壤物理性黏粒的含量为31.10%。吸湿水含量与土壤黏粒的含量呈显著的正相关。从半夏生长对土壤物理性状要求来看，4种轮作方式中以半夏与金荞麦（短柱型）轮作最优。
- Abstract:
- The purpose of this paper is to solve the continuous growth obstacle of Pinellia ternata, and explore the most appropriate rotation methods of Pinellia ternata. In this article, we put the 4 kinds of rotation soil as the research objects, including Radix Pseudostellariae, triennial Polygonum multiflorum, the short column type of Fagopyrum cymosum and annual Sophora flavescens, to test soil bulk density, soil natural water content, soil hydroscopic water and mechanical composition of soil. Results showed that soil water content of triennial Polygonum multiflorum was 6.4% above optimum moisture content and it was not suitable for cultivation of Pinellia ternata; but Fagopyrum cymosum was 30.01% and was optimum for cultivation. Soil bulk density between Pinellia ternata and different Chinese herbal medicine ranged from 0.92 g/cm3 to 1.09 g/cm3, soil bulk density and water content presented the negative correlation. The overall performance of soil hydroscopic water was that the variability coefficients belonged to the low and middle intensity. From soil mechanical composition, soil physical clay contents of Radix Pseudostellariae, triennial Polygonum multiflorum and the short column type of Fagopyrum cymosum were 37.60%, 44.60% and 33.93%, respectively, and annual Sophora flavescens was 31.10%. There were significant positive correlations between hydroscopic water content and soil physical clay content. With respect to Pinellia tuber growth requirements on soil physical properties, Pinellia ternata and the short column type of Fagopyrum cymosum are the best ways among the four rotation methods.
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备注/Memo
收稿日期:2014-07-07;改回日期:2014-09-03。
基金项目:贵州省中药现代化重大专项“贵州石斛、半夏等6种中药材产地适宜性技术评价体系构建与产业示范”子课题[黔科合重大专项字（2012）6010-3-1]；贵州省科技创新人才团队建设计划项目“贵州省土壤水肥调控与农业环境污染防治科技创新人才团队”（黔科合人才团队[2013]4020）；本科教学工程项目“农业资源与环境”特色专业建设
作者简介:张皓(1988-),男,河北文安人,在读硕士,研究方向为土地利用与信息技术。E-mail:hao.0210@163.com
通讯作者:何腾兵(1963-),男,贵州松桃人,教授,硕士生导师,主要从事土壤学、环境科学研究。E-mail:hetengbing@163.com