土壤改良剂对盐化草甸土物理性质及水稻产量的影响  

Effects of a New Soil Ameliorants on Soil Physical Properties and Yield of Rice in Saline Meadow Soil

作　　者：赵金星 周伟 战英策 历永杰 高洪波 何松榆 张玉先[1] 张明聪[1] Zhao Jinxing;Zhou Wei;Zhan Yingce;Li Yongjie;Gao Hongbo;He Songyu;Zhang Yuxian;Zhang Mingcong(College of Agronomy,Heilongjiang Bayi Agricultural University,Daqing 163319,Heilongjiang,China;Daqing Qilong Agricultural Science and Technology Limited Company,Daqing 163000,Heilongjiang,China)

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319 [2]大庆市启隆农业科技有限公司,黑龙江大庆163000

出　　处：《作物杂志》2018年第6期138-143,共6页Crops

基　　金：黑龙江省大学生创新创业训练计划项目(201710223057);大庆市指导性科技计划项目(zd-2016-107);黑龙江省自然科学基金面上项目(C2016042);中国博士后科学基金(2016M591568);国家科技支撑计划(2014BAD11B01-02);黑龙江八一农垦大学博士科研启动基金(XYB2014-04);国家现代农业产业技术体系(CARS-04-PS17)

摘　　要：为解决盐化草甸土水稻种植产量低的问题,实现盐碱土可持续利用,本研究采用盆栽试验和大田对比法,通过测定土壤相关物理性状和水稻产量,以期明确土壤改良剂对盐化草甸土的改良效果。盆栽试验结果表明,与常规盆栽管理方式(T1)相比,施用改良剂处理(T2)可显著增加土壤的电导率,降低土壤的代换性钠含量和pH,提高土壤不同粒级水稳性团聚体的质量百分比、有机碳含量和水稻产量;大田对比试验结果表明,与仅灌水处理相比,4个试验地点施用改良剂处理可以显著增加水稻单位面积返青穴数、穗粒数和单位面积产量,增加幅度分别为83.7%～87.4%(P<0.01)、40.4%～98.3%(P<0.01)和293.0%～411.2%(P<0.01)。综上分析,施用土壤改良剂能够明显改善草甸盐土物理性状,提高水稻产量,增加种植户收益。The effects of saline meadow soil modifier on soil physical properties and yield of rice were studied by both pot and field experiment.The results of pot test were compared,the irrigation improver treatment (T2)significantly increased the electrical conductivity of soil,reduced soil exchangeable sodium content,pH and soil moisture content than that of the pouring water treatment (T1).T2also increased the mass percentage and organic carbon content of water stable aggregates of different grain size in soil.The field contrast test showed that the application of modifier in 4 test sites could significantly increase the green returning rate of rice,the number of grains per ear and yield per hectare, increases were 83.7%-87.4%(P<0.01),40.4%-98.3%(P<0.01)and 293.0%-411.2%(P<0.01),respectively,compared with irrigation treatment.Based on the above analyses,the application of soil improver could improve the physical properties of saline meadow soil,increase the rice yield and thereby increase the income for growers.

关 键 词：草甸盐土 改良剂 水稻 产量 物理性质 

分 类 号：S156.2[农业科学—土壤学]