摘要
探究不同用量脱硫石膏与腐植酸配施对盐碱地土壤及藜麦生理特性和产量的影响,为盐碱地藜麦种植提供理论参考与技术支撑。以陇藜1号为试验材料进行盆栽试验,设置0(F0)、6.25(F1)、12.50(F2)和18.75 g/kg(F3)4个脱硫石膏水平,0(HA0)、1(HA1)和2 g/kg(HA2)3个腐植酸水平,进行随机区组试验。结果表明,在同一腐植酸用量下,随脱硫石膏施用量的增加,土壤pH呈先降后升的趋势,电导率呈上升趋势;藜麦叶片的叶绿素含量、抗氧化酶活性和籽粒产量呈先升后降的趋势,丙二醛、可溶性糖和脯氨酸含量呈先降后升的趋势,在F2处理下效果最佳。同一脱硫石膏用量下,随腐植酸用量的增加,土壤pH及电导率呈下降趋势;藜麦叶片的叶绿素含量、抗氧化酶活性和籽粒产量呈上升趋势,丙二醛、可溶性糖和脯氨酸含量呈下降趋势,在HA2处理下效果最佳。脱硫石膏和腐植酸配施可以显著降低土壤pH,促进盐碱胁迫下藜麦的生长,提高藜麦产量,在脱硫石膏用量为12.5 g/kg配施2 g/kg腐植酸处理下效果最佳。
To explore the effects of combined application of different dosages of desulfurized gypsum and humic acid on the soil of saline-alkali land,as well as the physiological characteristics and yield of quinoa,and to provide ideas and technical support for quinoa planting in saline-alkali land,taking Longli 1 as the experimental material,a pot experiment was conducted.Four levels of desulfurized gypsum at 0(F0),6.25(F1),12.50(F2),18.75 g/kg(F3),and three levels of humic acid at 0(HA0),1(HA1),2 g/kg(HA2)were set up for the randomized block experiment.The results showed that under the same amount of humic acid,with the increase of the application amount of desulfurized gypsum,the soil pH decreased first and then increased,and the electrical conductivity showed an upward trend.The chlorophyll content of quinoa leaves,antioxidant enzyme activity,and grain yield increased first and then decreased,and the content of malondialdehyde,soluble sugar,and proline decreased first and then increased,with the best effect under the F2 treatment.Under the same amount of desulfurized gypsum,with the increase of the amount of humic acid,the soil pH and electrical conductivity showed a downward trend.The chlorophyll content,antioxidant enzyme activity,and grain yield increased,and the contents of malondialdehyde,soluble sugar,and proline decreased,with the best effect under the HA2 treatment.The combined application of desulfurized gypsum and humic acid could significantly reduce soil pH,promote the growth of quinoa under saline-alkali stress,and increase the yield of quinoa.The best effect was achieved under the treatment of 12.5 g/kg of desulfurized gypsum combined with 2 g/kg of humic acid.
作者
闫晶蓉
庞春花
张永清
毋悦悦
侯钰晨
王嘉祺
乔曼
Yan Jingrong;Pang Chunhua;Zhang Yongqing;Wu Yueyue;Hou Yuchen;Wang Jiaqi;Qiao Man(College of Life Sciences,Shanxi Normal University,Taiyuan 030031,Shanxi,China;College of Geography,Shanxi Normal University,Taiyuan 030031,Shanxi,China)
出处
《作物杂志》
北大核心
2025年第5期47-53,共7页
Crops
基金
国家自然科学基金(NSFC-31571604)。
关键词
藜麦
脱硫石膏
腐植酸
盐碱胁迫
抗氧化酶活性
土壤电导率
产量
Quinoa
Desulfurized gypsum
Humic acid
Saline-alkali stress
Antioxidant enzyme activity
Soil electrical conductivity
Yield
