摘要
以盐粳939为试验材料,研究了改性生物炭和黄腐酸耦合对滨海盐碱稻区水稻幼苗形态和生理特性及土壤养分的影响.结果表明:7 t/hm^(2)改性生物炭与75 kg/hm^(2)黄腐酸(C_(2)H_(1))共同处理条件下,水稻株高、茎粗、根长、根数、根冠比比对照分别显著增加了5.9%,19%,34.87%,62.5%,106.1%;叶绿素相对含量较对照显著提高22.7%,其根系活力是对照组的1.8倍.同时,C_(2)H_(1)处理条件下土壤碱解氮含量、土壤速效磷含量、速效K含量相对于对照增幅分别达到53.56%,94.15%,142.34%.总体上,C_(2)H_(1)为最优的配施方式,显著促进了滨海盐碱稻区优质水稻盐粳939幼苗的生长和土壤养分的提升.
Based on the increasing global soil salinization and its important effect on plant growth,Yangeng 939 was used as experimental material,effects of coupling of modified biochar and fulvic acid on morphological and physiological characteristics of rice seedlings and soil nutrients in saline-alkali rice growing areas were studied.The results showed that when 7 t/hm^(2) modified biochar and 75 kg/hm^(2) fulvic acid(C_(2)H_(1))were co-treated,the plant height,stem diameter,root length,root number and root-shoot ratio of rice were increased by 5.9%,19%,34.87%,62.5%and 106.1%,respectively;relative content of chlorophyll was increased by 22.7%;the root activity was 1.8 times of the control group.In addition,the content of available N,available P and available K increased by 53.56%,94.15%and 142.34%respectively under C_(2)H_(1) treatment.As a result,C_(2)H_(1) was the optimal combination treatment,which significantly promoted the growth of high-quality rice Yangeng 939 seedlings and the improvement of soil nutrients in the saline-alkali rice region.
作者
吴云艳
朱俐璇
王颖
赵晓彤
WU Yun-yan;ZHU Li-xuan;WANG Ying;ZHAO Xiao-tong(School of Agriculture,Liaodong University,Dandong 118003,China;School of Municipal and Environmental Engineering,Jilin Jianzhu University,Changchun 130118,China;Kangping County Centre for Rural Renewal and Development,Shenyang 110500,China)
出处
《东北师大学报（自然科学版）》
CAS
北大核心
2024年第4期127-132,共6页
Journal of Northeast Normal University(Natural Science Edition)
基金
辽宁省科技发展计划项目(2023JH2/101700218)
辽宁省教育厅高校基本科研项目(LJKMZ20221757)
吉林省科技发展计划项目(20240304032SF)。
关键词
生物炭
黄腐酸
盐碱稻区
水稻
modified biochar
fulvic acid
saline-alkali rice region
rice
