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马铃薯喜铵态氮,忌含氯的肥料,故不宜施用人粪尿和含离子的肥料。...
Tuesday, February 20, 2024
小麦赤霉病菌主要在稻桩上越冬,在小麦()期子囊壳形成达到高峰,穗...
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不宜在水田施用的化肥是()。A、氯化铵B、硝酸铵C、尿素D、碳酸氢铵...
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特殊的高温干旱天气在抽雄吐丝期常出现大于()以上的高温,致使花粉...
Monday, September 12, 2022
Monday, September 12, 2022
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玉米茎基腐病防治方法不包括()。A、选用抗病品种B、科学耕地C、切断昆虫传播D、药剂防治...
Tuesday, October 10, 2023
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022
()和选择最适合的农药两者结合起来,才能称得上是对症施药。...
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022
农业生产的季节性特点要求我们在从事农业生产时要因地制宜,按自然规...
Monday, September 12, 2022
春棉和夏棉从现蕾到开花所经历的时间一般为()。A、10-15天B、40-45天C、25-30天D、50-60天...
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在保证质量的前提下,应尽量增加作业遍数,改进作业方法,避免土壤破...
Monday, September 12, 2022
Monday, September 12, 2022