[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3zpVbxjtSCKPceEjqw7HfmOh8Bv1GcT6519D1Z_Vlhs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-09-17 11:08:07",216886913,[8,9,10,11],"土壤微生物分泌物","土壤动物及其分泌物","土体中植物残体和植物分泌物","土壤水分",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},56,"cfeeec1d306a181ae8a356d30f73cf34","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","耕作学","work_45440069","23301002 耕作学","土壤有机质泛指土壤中来源于生命的物质.来源于()",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],216886910,[25,26,27,28],"是土壤养分的主要来源","促进土壤结构形成,改善土壤物理性质","提高土壤的保肥能力和缓冲性能","腐殖质具有生理活性,能促进作物生长发育","土壤有机质对土壤肥力的作用()","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],216886911,[36,37,38,39],"养分","水分","空气","热量","土壤肥力是土壤的基本属性和本质特征,土壤可为植物生长供应和协调的能力()",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],216886914,[48,49,50,51],"每间隔35~70厘米,作宽 20厘米、深30厘米的条状松耕,逐年交替进行","采用不同方式的深松耕办法,机动灵活,便于作业","具有耕种结合、耕管结合,加深耕层,提高耕作质量的优点","深松耕法能有利于作物的生长,但是会大幅度减少土壤微生物的数量","关于深松耕法的由来以及作业方法说法正确的是()",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],216886916,[57,58,59,60],"等高耕作法","沟垄耕作法","环形耕作法","带状耕作法","保护农田不受或少受土壤侵蚀的一类耕作方法,又称保土耕作法包括()",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],216886917,[66,67,68,69],"块状结构体","片状结构体","柱状结构体和棱状结构体","团粒结构体","土壤耕层结构是由下面几种土壤类型构成的立体剖面()",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],216886918,[75,76,77,78],"地形","降雨","土壤(地面物质组成)","植被","简述地形与水土流失的关系()",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],216886919,[84,85,86,87],"植被破坏(如滥垦、滥伐、滥牧)","坡耕地垦植(如陡坡开荒、顺坡耕作、过度放牧)","由于开矿、修路未采取必要的预防措施","过度使用肥料","人为活动是造成土壤流失的主要原因,表现为",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],216886920,[93,94,95,96],"质地","占地面积","结构","孔隙","土壤的透水性与()有关",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],216886921,[102,103,104,105],"具有生理活性,能促进作物生长发育","具有络合作用,有助于消除土壤的污染","具有毒害植物危害","具有提供营养作用","腐殖质的作用包括:()"]