2020-2021学年九年级下册化学鲁教版同步课时作业（16）化学与农业生产
※题型：单选题※知识点：单选题※试题难度：较易<br>小滨给校园里枝叶稀疏、叶色发黄的植物施用尿素<img src="https://picture2.zhihuicn.com/testImage/2/2020/7/17/7176B36F000A12484C355F3CB7E03728.png"><br>,尿素是一种( )<br>A.氮肥 B.复合肥 C.磷肥 D.钾肥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/cabe6059065e44fa8d33b27dd0b07c78/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/5b78b606535f444a85ebb7253e5af845/EB59F2884AA0BBFCD394D1415D7B83D0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列属于磷肥的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/5B8D38F2053ED42E3CF96259C61F9F65.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/92BD1A9E26F38B141EA4FF751D9EB445.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/F36AE39A864A1C568595485F2D2C61E5.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/42BE0C05DBBE4225D4635606F71487E0.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/235d9ee941b040a6801110408d71cb62/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>“氮肥壮叶,磷肥壮果,钾肥壮茎”,小王种的甘蔗易倒伏,则他应施加下列化肥中的( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/12/DB543F7C7B8DD31CCF64ED52FA460DAF.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/12/42F09CBCD510AAFD2345F341FB191981.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/12/9657CD6677A8B536DA52BF72946AF00F.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/12/21046591314C7CCB2494D9212082BF81.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0ff0425dca9e4705b186c923a6dc8756/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/2e38345d102645019bafeeae84cecb50/5BB167683E8592F5BF837C267095E26F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>化肥和农药影响农作物的产量。下列说法正确的是( )<br>A.使用化肥越多,农作物产量越高<br>B.铵态氮肥与熟石灰混合使用可以提高肥效<br>C.大量使用农药会导致土壤和食品污染,因此要杜绝使用农药<br>D.适当增大蔬菜大棚内二氧化碳的浓度,可以促进蔬菜的光合作用<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/3c7ab49b15874490b8d008dbb6e59437/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/0959187e7c834b8b9b7bb43ed7dea1c6/29F77DC79051AFC835C25C2747A7EDF7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>化学肥料是农作物的“粮食”。下列关于化学肥料的说法正确的是( )<br>A.尿素<img src="https://picture2.zhihuicn.com/testImage/2/2019/7/5/A20F41369BE87CC7816EE25A9FE75269.png"><br>属于复合肥料<br>B.大量施用化肥以提高农作物产量<br>C.铵态氮肥与草木灰混用,会降低肥效<br>D.棉花叶片枯黄,应施用硫酸钾等钾肥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/4369e6733f92405aa46c6300367f5e50/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/ade6dd210f6c44dfaf80e79b864634b9/99C2AC5E64254FA844A2B19C2D9B11F2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某化肥包装袋上的部分说明如图<br>11-3-3<br>所示。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/3/12/0D9D3DC3C4613B55E1420664F660F637.png"><br>1.氯化铵属于化学肥料中的_________(填字母)。A.钾肥B.氮肥C.磷肥<br>2.氯化铵具有的性质是_________(填字母)。A.易溶于水B.有挥发性C.受热易分解<br>3.氯化铵中含有的阳离子的符号为_________。<br>4.施用该类肥料时,要避免与_________(填“酸性”或“碱性”)物质混用,以防降低肥效。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/1b7013b02fa54991992fd688f92cb9b3/FC4F979BA67F94E8541A19630D681707.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/53afefb2d93b4fd59ba283d947e5305f/A7DF94F57DDE048FA2560CDB538EBE14.png"><br><br>
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