种植类专业实践综合模拟试题.doc

Forpersonaluseonlyinstudyandresearch;mercialuse种植类专业实践综合模拟试题第一卷一、,都是捕食性的昆虫的是A蝗虫   B椿象   C草蛉      B分支状  C棒状      B真菌   C病毒      B二化螟  C三化螟    B鞘翅目  C双翅目  (     )。                      、杆状、(     )。                                    (     )。                    (     )。、胸、、(     )。                                        (     )。                                          (     )。            (     )。               B粒剂   C水剂   ,以(  )种子含油量最高。A棉花      B花生       C大豆       ~8℃,即栽插前(  )天开始育苗。A25        B30        C40        D50~,即在离开床土(  )cm以上的部位剪苗。A2         B3         C5          ,(  )结薯多产量高,但抗旱性差。A水平浅栽法 B直栽法      C斜栽法     ,甘薯安全贮藏以窖内氧气含量不低于(  )为宜。A10%          B15%         C18%       D20%        A2,4—D   B青鲜素   C乙烯利   ,也是棉田管理的重点时期是A苗期   B蕾期   C花铃期    B土壤质地不良 C密度上不去 (   )天是玉米一生是对缺水反应