问题:单选题影响作物田间需水量的因素很多,其中最重要的是()A 土壤B 气象C 作物D 农技措施...
Monday, July 15, 2024
Tuesday, June 17, 2025
Friday, May 19, 2023
Tuesday, July 22, 2025
问题:在一定的气象条件和农业技术措施条件下,作物田间需水量将随产量的提高而()...
Monday, September 19, 2022
Wednesday, September 21, 2022
Tuesday, January 24, 2023
Tuesday, January 17, 2023
Thursday, September 22, 2022
问题:当农渠和农沟相间布置时,适宜的条田宽度范围为()...
Friday, September 16, 2022
Wednesday, April 23, 2025
问题:多选题经过改进的地面节水灌溉方法有()。A细流沟灌;B小管出流;C长畦分段灌;D渗灌。...
Friday, May 31, 2024
Sunday, July 16, 2023
Thursday, June 19, 2025
Thursday, September 15, 2022
Monday, March 6, 2023
问题:填空题在水源满足灌溉用水条件下,进行配水量计算可按灌溉面积比例或按()进行分配。...
Tuesday, November 26, 2024
Friday, May 31, 2024
Sunday, September 24, 2023
问题:多选题以下符合设计灌水率条件的是()A累计30d以上的最大灌水率B小于或等于最大灌水率的120%C大于最大灌水率的120%D小于最小灌水率的30%E大于或等于最小灌水率的30%...
Tuesday, January 24, 2023