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- A split plot design was employed with 4 replicates, 2 host species, 8 ectomycorrhizal fungi and 6 or 9 trees per plot (experiment 1), or 3 ectomycorrhizal fungi and 9 trees per plot (experiment 2). 试验1有8个外生菌根菌处理,每处理小区6株或9株,试验2有3个外生菌根菌处理,每处理小区9株。
- tree per plot 每区树木数
- Among the combinations, contour rowing combined with surface tillage produced the most desirable economic characters and yielded the highest [21.62kg per plot(40m~2)]. 在各处理组合中;以沿等高线种植、浅耕、净作玉米的经济性状最优;小区产量达21.;62千克/40平方米;而顺坡种植、翻耕、净作的经济性状最差;小区产量仅12
- The optimum density is difficult to specify in terms of trees per acre. 很难定论究竟每英亩多少株树为最适密度。
- For example, it is not unusual to find northeastern forest growing at densities of 400 trees per acre. 例如,在东北地区的森林里,每一英亩(0.;4公顷)400株树木的生长密度并不少见,这相当于双向均为10英呎(3
- For example, Lakeland, Florida, has been planting over one thousand trees per year since 1990. 举例来说,湖泊地区, 佛罗里达州, 自从 1990 以后每年已经是超过一千的种植树。
- As the car hit the tree he was snot out. 汽车扭在村上,他被猛地摔了出来。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- The increment percentages of DBH for stand densities 3 300, 4050,4800 and 5550 trees per hectare were 3.43%, 2.85%, 2.64% and 2.56% respectively, with contrasts of 240.00%, 207.00%, 191.00% and 186.00% respectively. 间伐后立木保存密度为3300株/hm~2;4050株/hm~2;4800株/hm~2和5550株/hm~2的4a胸径增长率分别为3.;43%25;2
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- The car hit the tree with a sickening crash. 那辆汽车撞在树上发出让人难受的撞击声。
- An arrow whizzed past and stuck in a tree. 一支箭“飕”地一声飞过去,钉在一棵树上。
- The squirrel ran up a tree and got out of my reach. 松鼠跑到树上去了,我逮不着。
- The workers saw off a limb from the tree. 工人从树上锯下了一根大树枝。
- The agency places about 2000 secretaries per annum. 该代理机构每年可为约2000名秘书安排工作。
- He is not made for climbing the tree of knowledge. 他不是生来适于攀登知识之树的。
- It travels thousands of miles per second. 它一秒钟能走几千英里。
- He tethered his horse to a tree. 他用绳子把马拴在树上。
- Create a collapsible tree of plot ideas. 为你的计划跟腹稿创造一个可折叠的故事树。
- Can your car make a hundred miles per hour? 你的汽车一小时能开一百英里吗?