问题:多年生牧草的营养繁殖方式和繁殖器官有哪些(分别列出3种以上)?...
Sunday, March 24, 2024
Tuesday, February 13, 2024
问题:草地植物对放牧的响应中,有一种植物对放牧特别敏感,家畜采食即使是...
Wednesday, September 14, 2022
Wednesday, September 14, 2022
Saturday, April 27, 2024
Sunday, March 19, 2023
Wednesday, September 14, 2022
Thursday, November 16, 2023
问题:采食率:家畜实际采食牧草的量占牧草总产量的百分比:采食率(%) =()。...
Thursday, November 16, 2023
Tuesday, November 29, 2022
问题:植物群落的形成是在原来没有植物生长的()上开始的。A、原生草地B、群落C、芜原D、土壤...
Friday, January 12, 2024
Wednesday, September 14, 2022
Saturday, April 27, 2024
Monday, September 12, 2022
Saturday, October 1, 2022
Monday, September 12, 2022
Tuesday, February 13, 2024
Saturday, April 27, 2024
Sunday, March 24, 2024
问题:从产量、营养成分等方面综合考虑,牧草的适宜刈割时期最好在()。...
Monday, September 12, 2022