海南澄迈甘薯营养品质与土壤养分相关性研究  

Correlation Between Nutritional Quality of Sweet Potatoes and Soil Nutrients in Chengmai,Hainan

作　　者：刘健[1,2] 娄运生[1,2] 任丽轩[3,4,5] 王坤 邢钰媛 李淑君 王媛 汤丽玲 苏磊[6] 杨建洲[6] LIU Jian;LOU Yun-sheng;REN Li-xuan;WANG Kun;XING Yu-yuan;LI Shu-jun;WANG Yuan;TANG Li-ling;SU Lei;YANG Jian-zhou(Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Jiangsu Nanjing 210044,China;Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing University of Information Science and Technology,Jiangsu Nanjing 210044,China;School of Resources and Environmental Science,Nanjing Agricultural University,Jiangsu Nanjing 210095,China;Key Laboratory of Plant Nutrition and Fertilization in the Low-Middle Reaches of the Yangtze River,Ministry of Agriculture,Jiangsu Nanjing 210095,China;Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization,Jiangsu Nanjing 210095,China;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Hebei Langfang 065000,China)

机构地区：[1]南京信息工程大学气象灾害预报预警与评估协同创新中心,江苏南京210044 [2]南京信息工程大学江苏省农业气象重点实验室,江苏南京210044 [3]南京农业大学资源与环境科学学院,江苏南京210095 [4]农业部长江中下游植物营养与肥料重点实验室,江苏南京210095 [5]江苏省有机固体废弃物资源化协同创新中心,江苏南京210095 [6]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《西南农业学报》2021年第11期2398-2403,共6页Southwest China Journal of Agricultural Sciences

基　　金：中国地质调查局地质调查项目(DD20190305);国家自然科学基金(41875177,41375159)。

摘　　要：【目的】确定何种土壤质地下甘薯营养品质稳定和影响营养品质的主要土壤养分因子。【方法】采集甘薯品种高系-14号60株植物样和60袋非根际土样,对土壤质地、8项土壤理化指标和5项甘薯营养品质指标进行测定分析。【结果】甘薯营养品质指标的变异系数,包括直链淀粉、支链淀粉、总淀粉、可溶性糖和蛋白质,在黏壤土和壤土中较小,黏土中较大。壤土中甘薯直链淀粉主要受pH负影响,可溶性糖含量显著高于黏土。黏壤土中甘薯直链淀粉和支链淀粉主要受铵态氮正影响和负影响。黏土中甘薯直链淀粉和支链淀粉主要受有机质负影响。【结论】壤土和低pH利于出产品质稳定和高直链淀粉的甘薯,黏壤土和高铵态氮利于出产品质稳定和高直链淀粉的甘薯,黏壤土和低铵态氮利于出产品质稳定和高支链淀粉的甘薯。【Objective】The present paper aimed to determine the stable nutritional quality of sweet potato under which soil texture,and to determine the main soil nutrient factors that affect the nutritional quality.【Method】Collecting 60 plant samples of sweet potato variety Gaoxi-14 and 60 bags of non-rhizosphere soil samples,the soil texture,8 soil physical and chemical indexes and 5 sweet potato nutritional quality indexes were determined and analyzed.【Result】The coefficient of variation of the nutritional quality indicators of sweet potato,including amylose,amylopectin,total starch,soluble sugar and protein,was smaller in clay loam and loam,and larger in clay soil.Sweet potato amylose in loam was mainly negatively affected by pH,and the soluble sugar content was significantly higher than that in clay.Sweet potato amylose and amylopectin in clay loam were mainly affected by ammonium nitrogen positively and negatively.Sweet potato amylose and amylopectin in clay were mainly negatively affected by organic matter.【Conclusion】Loam soil and low pH are beneficial to produce stable quality and high amylose sweet potatoes,clay loam and high ammonium nitrogen are beneficial to produce stable quality and high amylose sweet potatoes,clay loam and low ammonium nitrogen are beneficial to produce stable quality and high branched chains starchy sweet potato.

关 键 词：甘薯 品质 土壤养分 土壤质地 

分 类 号：S531[农业科学—作物学]