土壤改良剂对土壤紧实度及燕麦生长状况的影响  

Effects of Soil Amendments on Soil Compaction and Growth Status of Oat

作　　者：刘慧军[1,2] 刘景辉[1] 于健 徐胜涛[1] 史吉刚 

机构地区：[1]内蒙古农业大学燕麦产业研究中心,内蒙古呼和浩特010019 [2]内蒙古赤峰市翁旗农业局,内蒙古赤峰024500 [3]内蒙古水利科学研究院,内蒙古呼和浩特010010

出　　处：《水土保持通报》2013年第3期130-134,共5页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目"抗旱保水材料蓄水保墒生态机制研究"(31160267);内蒙古科技计划项目"燕麦超高产高效技术集成示范(20090708);"燕麦高产高效与绿色生产关键技术研究与示范"(20100704);内蒙古农业大学科技创新团队建设计划项目"燕麦种质资源创新与利用"(NDTD2010-8)

摘　　要：研究了不同土壤改良剂(聚丙烯酸钾,聚丙烯酰胺,腐殖酸钾,聚丙烯酸钾+腐殖酸钾,聚丙烯酰胺+腐殖酸钾)对土壤紧实度及燕麦生长状况的影响。结果表明,各改良剂处理均能减小土壤紧实度,表现为:聚丙烯酸钾+腐殖酸钾>聚丙烯酰胺+腐殖酸钾>聚丙烯酸钾>聚丙烯酰胺>腐殖酸钾>对照,土壤紧实度均随着土壤深度增加而增加;土壤改良剂对燕麦株高和干物质量具有显著的提高作用,复配处理株高优于其他单施处理;土壤改良剂处理下籽粒产量均显著高于对照,其中聚丙烯酸钾+腐殖酸钾和聚丙烯酰胺+腐殖酸钾籽粒产量较其他处理高,分别为4 694.2和4 566.9kg/hm2,较对照增产21.66%和18.36%,生物产量的增产效果表现同籽粒产量;各土壤改良剂处理水分利用效率均显著高于对照,其变化趋势与产量变化趋势一致,复配处理效果更佳。Effects of different soil amendments on soil compaction and growth status of oat were studied.Results showed that all the soil amendments could reduce soil compaction;the order of them was potassium polyacrylate＋ potassium humate polyacrylamide＋potassium humate＋ potassium humate potassium polyacrylate polyacrylamide potassium humate CK;and soil compaction increased with the increase of soil depth.Soil amendments significantly increased plant height of oat and dry matter weight,and the height for the mixed use was higher than the single use.Grain yields under the amendment treatments were significantly higher than that under the control.The yields for potassium polyacrylate＋potassium humate and polyacrylamide＋potassium humate were higher than that for the single use,being 4 694.2and 4 566.9 kg/hm2 with the increments of 21.66% and 18.36%,respectively.Biological yield had the same effect as grain yield.The WUE under the amendment treatments was significantly higher than that under the control,and the WUE under mixed amendment was higher than that under other soil amendments.

关 键 词：土壤改良剂 土壤紧实度 燕麦生长状况 水分利用效率 

分 类 号：S512.6[农业科学—作物学] S278