[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fm-MnfxMPMTtJfrnAojoi0-OqhawZ3IwF1CrHjyXEptE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":14,"related":15,"source":23,"type":34},[],"2025-07-01 08:34:56",1062214619,[8,9,10],"中壤土","轻壤土","砂壤土",{"courseImg":12,"courseName":13},"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff8f437b975a0b56f9d37ab6840a1c50d.jpg","[共享课]土壤肥料学","某土壤干土块稍加挤压可碎,手捻有粗面感,湿测可搓成直径3毫米土条,但提起即断,该土属( )",[16,25,35,38,43,48,53],{"answer":17,"createTime":5,"id":18,"options":19,"question":22,"source":23,"type":24},[],1062214337,[20,21],"对","错","甜菜施用硝酸铵的肥效比硝酸钠好.( )","v2",3,{"answer":26,"createTime":5,"id":27,"options":28,"question":33,"source":23,"type":34},[],1062214576,[29,30,31,32],"我国从南到北,除少数土壤外,盐基饱和度逐渐增加","我国从东到西,除少数土壤外,盐基饱和度逐渐增加","南方土壤均为盐基不饱和土壤,北方土壤均为盐基饱和土壤","经耕作施肥的土壤,盐基饱和度通常增大","盐基饱和度主要决定于气候条件,母质与耕作施肥也有一定的影响.因此,不可能出现的情况是( )",0,{"answer":36,"createTime":5,"id":6,"options":37,"question":14,"source":23,"type":34},[],[8,9,10],{"answer":39,"createTime":5,"id":40,"options":41,"question":42,"source":23,"type":24},[],1062214830,[20,21],"植物缺乏氮磷钾时,症状首先表现在老叶片上.( )",{"answer":44,"createTime":5,"id":45,"options":46,"question":47,"source":23,"type":24},[],1062215065,[20,21],"基肥施用的原则是无机肥为主,有机肥为辅.( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":52,"source":23,"type":24},[],1062215131,[20,21],"扩散在土壤空气交换中占主导地位.( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":23,"type":34},[],1062215316,[57,58,59,60],"Fe3+&gt;H+&gt;Ca2+&gt;K+","Fe3+&gt;K+&gt;Ca2+&gt;H+","Fe3+&gt;Ca2+&gt;H+&gt;K+","H+&gt;Fe3+&gt;Ca2+&gt;K+","土壤中常见的几种交换性阳离子的交换能力顺序正确的是( )"]