摘要
为了解决盐碱地单一改良方式见效慢、存在潜在污染、经济效益低等问题,本研究采用综合治理措施,即将制备的有机酸土壤调理剂和保水剂联合使用开展大田试验,监测小麦生长过程中土壤盐分、有机质含量变化,测定肥料利用率和小麦产量,以此来综合评价保水剂及有机酸土壤调理剂对盐碱地的改良效果及小麦产量的影响。结果显示,保水剂和有机酸土壤调理剂联合施用(试验组B)效果最好,与空白组相比,轻度、中度盐碱土的含盐率分别减低19.9%和42.0%,土壤有机质含量分别增加23.4%和29.2%,小麦分别增产9.17%和15.73%;其肥料利用率也最高,比空白组高12.4%。
In order to solve the problems of slow improvement,potential pollution and low economic benefits of single improvement method for saline-alkali land,this study adopted comprehensive management measures by combining the prepared soil conditioner and water-retaining agent to carry out field experiments.By monitoring the changes of soil salinity,organic matter content,fertilizer use rate and wheat yield during wheat growth,the effects of the water-retaining agents and organic acid soil conditioners on the improvement of saline-alkali land and wheat yield were comprehensively evaluated.The results showed that the combination of water-retaining agent and soil conditioner had the best effect.Compared with the control,in the slight and medium saline-alkline soil,the salt rate decreased by 19.9%and 42.0%,respectively;the soil organic matter content increased by 23.4%and 29.2 respectively,and the wheat yield increased by 9.17%and15.73%respectively.The fertilizer use rate of the combination treatment was also the highest and increased by 12.4%compared with the control.
作者
倪海峰
朱尤东
刘树堂
李昆仑
卢振宇
赵林
Ni Haifeng;Zhu Youdong;Liu Shutang;Li Kunlun;Lu Zhenyu;Zhao Lin(School of Bioengineering,Qilu University of Technology/State Key Laboratory of Bio-based Materials and Green Paper Making,Jinan 250353,China;College of Resources and Environment,Qingdao Agricultural University,Qingdao 266109,China;Jinan Hangchen Biotechnology Co.,Ltd.,Jinan 250000,China;National Agricultural Science and Technology Park of the Yellow River Delta(Binzhou),Binzhou 256600,China)
出处
《山东农业科学》
2020年第4期121-125,共5页
Shandong Agricultural Sciences
基金
山东省重大创新工程项目(2017CXGC0302,2017CXGC0204,2018CXGC0212,2018CXGC0204)。
