不同粒径保水剂对土壤水分及燕麦生长的影响  

Effect of Super Absorbent Polymers with Different Granularities on Soil Water and Oat Growth

作　　者：刘慧军[1] 刘景辉[1] 徐胜涛[1] 侯冠男[1] 李倩[1] 

机构地区：[1]内蒙古农业大学农学院,呼和浩特010019

出　　处：《西北农业学报》2012年第8期89-93,100,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：内蒙古科技计划项目(20090708;20100704);水利部科技推广项目(TG1144)

摘　　要：以燕麦燕科1号为材料,研究不同粒径保水剂对土壤水分及燕麦生长的影响。结果表明,不同粒径保水剂均可提高0～100cm土层土壤质量含水量,10～60cm各土层各处理差异较明显;施用保水剂可明显提高燕麦株高、叶面积指数和干物质积累量,其中以小粒径保水剂效果较佳;保水剂能提高燕麦穗数、穗粒数和千粒质量,从而显著(P<0.01)提高燕麦产量,大小粒径保水剂分别比对照增产12.65%和16.61%;大小粒径保水剂均可显著(P<0.01)提高燕麦水分利用效率,分别比对照增加15.12%和23.56%。说明,小粒径保水剂在提高当地土壤水分和促进燕麦生长方面优于大粒径保水剂。The experiment was conducted with oat variety Yanke No. 1 to study the effect of super ab- sorbent polymers with big and small granularities on soil water and oat growth. The results showed the soil mass soil moisture content in 0-100 cm soil layer was increased under super absorbent polymer treatments, while the difference in 10-60 cm among every layers was more significant. Super absorbent polymers increased the plant height, leaf area index and dry matter mass especially the super absorbent polymer with small granularity. Two kinds of granularities all increased number of spikelets, grains per spike and 1 000-grain mass, thus increasing the yield significantly. Compared with contrast, the yield under the treatment of big and small granularities increased by 12. 65% and 16.61% respectively. Water use efficiency was increased significantly, and increased by 15.12% and 23.56% respectively. It was concluded that super absorbent polymer of small granularity on impro ving mass soil moisture content and oat growth was better than super absorbent polymer of big granularity

关 键 词：保水剂 燕麦 土壤水分 生长 产量 

分 类 号：S152.7[农业科学—土壤学] S512.6[农业科学—农业基础科学]