本实验应用BGA土壤调理剂对砂质土地的絮凝作用,作者选定宁夏银川月牙湖沙化地进行试验,种植辣椒测定其苗期成活率、植物生长量、产量及土壤理化性质。结果表明,BGA土壤调理剂能增强辣椒对盐、碱的抵抗能力,成活率达到96.16%,长势优于...本实验应用BGA土壤调理剂对砂质土地的絮凝作用,作者选定宁夏银川月牙湖沙化地进行试验,种植辣椒测定其苗期成活率、植物生长量、产量及土壤理化性质。结果表明,BGA土壤调理剂能增强辣椒对盐、碱的抵抗能力,成活率达到96.16%,长势优于其他处理,达到提高产量和絮凝作用,提高了砂质土壤的保水、保肥性能,使土壤变得疏松多孔,有利于作物根系生长。In this experiment, BGA soil conditioner was used to flocculate sandy land. The author selected the desert land of Yueya Lake in Yinchuan, Ningxia, and measured the survival rate of seedlings, plant growth, yield and soil physicochemical properties. The results showed that BGA soil conditioner could enhance the resistance of pepper to salt and alkali, the survival rate was 96.16%, the growth rate was better than other treatments, the yield was increased, the flocculation was improved, the water and fertilizer retention performance of sandy soil was improved, the soil became loose and porous, and it was conducive to the growth of crop roots.展开更多
本文以内蒙古通辽市科尔沁左翼后旗巴胡塔镇乌旦塔拉村为试验区,选取13个土壤微形态指标,利用Photoshop、土壤切片图像处理分析系统、Image-pro plus 6.0软件对土壤微形态图像进行处理,采用定性、定量相结合的方法对不同改良处理后的砂...本文以内蒙古通辽市科尔沁左翼后旗巴胡塔镇乌旦塔拉村为试验区,选取13个土壤微形态指标,利用Photoshop、土壤切片图像处理分析系统、Image-pro plus 6.0软件对土壤微形态图像进行处理,采用定性、定量相结合的方法对不同改良处理后的砂质土壤肥力进行评价,在此基础上建立了砂质土壤肥力评价的微形态指标最小数据集(MDS)。得出以下结论:与对照组单元1相比,其他各个单元的土壤结构体、粗骨颗粒等微形态特征变化不显著。单元10(黏土、有机肥、腐殖酸施加量分别为3.00×10~5、3.00×10~4、7.50×10~3 kg/hm^2)中土壤黏粒最多、基质比最大、有机物质频率最高;土壤孔隙状况以及毛管孔隙发育最好的单元分别是单元8和单元13(黏土、有机肥、腐殖酸施加量分别是单元8:1.50×105、3.00×10~4、1.125×10~4 kg/hm^2,单元13:7.50×10~4、3.00×10~4、3.75×103 kg/hm^2)。准则层指标土壤基质、土壤孔隙、有机物质、土壤结构体、粗骨颗粒的权重分别为0.336、0.253、0.203、0.124、0.084。砂质土壤肥力评价的最小数据集包括基质比、基质类型、基质颜色、毛管孔隙占比、孔隙类型、有机物质类型、粗骨颗粒平均粒径7个指标,MDS评价结果与原始评价结果呈显著的线性相关关系,因此实际评价砂质土壤肥力时,可以MDS的7个微形态指标代替原始的13个指标。展开更多
文摘本实验应用BGA土壤调理剂对砂质土地的絮凝作用,作者选定宁夏银川月牙湖沙化地进行试验,种植辣椒测定其苗期成活率、植物生长量、产量及土壤理化性质。结果表明,BGA土壤调理剂能增强辣椒对盐、碱的抵抗能力,成活率达到96.16%,长势优于其他处理,达到提高产量和絮凝作用,提高了砂质土壤的保水、保肥性能,使土壤变得疏松多孔,有利于作物根系生长。In this experiment, BGA soil conditioner was used to flocculate sandy land. The author selected the desert land of Yueya Lake in Yinchuan, Ningxia, and measured the survival rate of seedlings, plant growth, yield and soil physicochemical properties. The results showed that BGA soil conditioner could enhance the resistance of pepper to salt and alkali, the survival rate was 96.16%, the growth rate was better than other treatments, the yield was increased, the flocculation was improved, the water and fertilizer retention performance of sandy soil was improved, the soil became loose and porous, and it was conducive to the growth of crop roots.
