Thursday, September 15, 2022
问题:根据土壤条件合理分配磷肥,中度缺磷土壤要()。A、少量施用、巧施磷肥B、适量施用、看苗施用C、优先施用、足量施用D、优先施用、看苗施用...
Sunday, December 22, 2024
Monday, September 12, 2022
问题:气温日较差比土壤温度年较差小,且距地面越高,日较差越小。...
Sunday, December 22, 2024
Monday, September 12, 2022
Sunday, July 16, 2023
Monday, June 23, 2025
Monday, September 1, 2025
问题:根据土壤调查任务来确定制图比例尺,为完成实验地规划设计可选用()...
Friday, September 16, 2022
问题:土壤按其作用分为()和(),()是土壤最基本的特性。...
Monday, September 1, 2025
问题:菜豆的茎属于()。A、直立茎B、缠绕茎C、匍匐茎D、攀缘茎...
Saturday, April 29, 2023
Tuesday, December 20, 2022
问题:下列降水强度(mm∕12h)()属于大雨。A、0.1~5.0B、10.1~25.0C、15.1~30.0D、5.1~15.0...
Wednesday, September 18, 2024
Thursday, September 15, 2022
Sunday, November 19, 2023
Thursday, September 15, 2022
Thursday, October 19, 2023
Monday, September 1, 2025
Thursday, September 15, 2022
问题:下列氮肥可作种肥的是()。A、尿素B、碳酸氢铵C、硫酸铵D、氯化铵...
Monday, February 20, 2023