Monday, September 12, 2022
Monday, September 12, 2022
问题:红松果材兼用林嫁接后要进行修枝,修枝强度一般每次修枝可修掉2~3轮活枝,最后修枝高度达到()m以上。
Wednesday, September 14, 2022
问题:调查气象、水文、地形、土壤等是造林施工设计工作的()阶段。A、准备工作B、外业工作C、内业工作D、设计工作
Saturday, May 20, 2023
Monday, September 12, 2022
Wednesday, September 14, 2022
Monday, September 12, 2022
Wednesday, September 14, 2022
Wednesday, September 14, 2022
问题:杨树为单性花,雌雄(),风媒授粉,多数品种互相授粉的亲合力很强。
Friday, June 16, 2023
Tuesday, April 4, 2023
Saturday, September 30, 2023
Saturday, September 30, 2023
问题:苗木抽样调查质量精度是()。A、80%B、85%C、90%D、95%
Monday, February 27, 2023
问题:穴植法栽植技术要点有()。A、穴大根舒B、深浅适宜C、根土密接D、反山
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Saturday, September 16, 2023
Wednesday, September 14, 2022
问题:针叶树裸根苗造林,苗木最主要的保护和处理措施是()A、修剪枝叶B、截干造林C、苗根沾泥浆保湿D、接种菌根菌
Wednesday, September 14, 2022