问题:生长期在芽的()刻伤,阻止养分向下运输,有利花芽的分化,并使花大、果也大。...
Sunday, March 12, 2023
问题:在树体生长发育过程中,芽是枝、叶、花的()、无性繁殖的()。...
Thursday, September 15, 2022
问题:生长()期是指绝大多数树木是从春季树液流动、萌芽起,至发叶基本结束止。...
Wednesday, May 10, 2023
Wednesday, April 10, 2024
Wednesday, May 10, 2023
Thursday, September 15, 2022
问题:树木在抗压或压弯强度一定时,可承受的最大风力与()等有关。A、树干的半径B、承受风力的树冠到地面的高度C、树体的大小D、树木的年龄...
Saturday, July 1, 2023
问题:()和()是园林绿地盐硷土局部改良的有效栽培措施。...
Wednesday, February 7, 2024
问题:从树木生长势自然减慢到树冠外缘出现干枯时为止,此期称为树木的()。A、幼年期B、青年期C、壮年期D、衰老期...
Saturday, October 8, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
Wednesday, March 6, 2024
Monday, July 31, 2023
Monday, September 12, 2022
问题:园林定植时的花灌木规格应是有主干或主枝()个,高度1m左右,分布均匀,根颈部有分枝,冠形丰满。A、3-6B、10C、2-3D、10个以上...
Monday, January 16, 2023
Monday, September 12, 2022
问题:结合当地实际情况,举例说明造成古树衰老和死亡的原因。...
Saturday, February 18, 2023
Monday, July 31, 2023
Tuesday, July 4, 2023