Monday, September 12, 2022
芽接主要在生长季进行,多数树种在7月初—9月初枝接主要在()进行...
Monday, September 12, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Monday, September 12, 2022
Monday, September 12, 2022
郁金番分球繁殖可于6月上、中旬将休眠鳞茎掘出,至()分级栽植。...
Friday, September 16, 2022
Friday, September 16, 2022
一般树种的幼苗,都不同程度地喜阴,都需采取()措施。A、覆盖B、遮阴C、降低土温D、防止蒸发...
Thursday, February 15, 2024
Friday, September 16, 2022
关于栽植树苗,下列说法正确的有()。A、树身上下应垂直B、种植平面高度要符合设计要求C、带土球灌木比土球顶部深2~3厘米D、筑好灌水堰E、捆树苗树冠的绳子,在栽植前取下...
Wednesday, January 24, 2024
种植树木时要完全拆除营养袋、拆除()、拆除草绳等有抑制根部生长的...
Friday, September 16, 2022
郁闭度是指森林中乔木树冠批次相接而遮蔽地面的程度,用十分法表示,...
Monday, September 12, 2022
Monday, September 12, 2022
Tuesday, September 13, 2022
Saturday, September 17, 2022
Monday, September 12, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022