天气预报 > 其他 > 怎样计算树种种植密度
怎样计算树种种植密度
更新时间: 2020-11-06 00:00:00  

1、种植密度是指在单位面积上按合理的种植方式种植的植株数量,一般以每亩株数来表示。株行距abc,即株距a,双行间的窄行距b,宽行距c。1亩=666.7m^2,除以每株所占的面积。

2、合理的种植密度,是在获得群体充分发展的同时,保持单株的良好发育,协调处理好个体、群体与生长环境关系,使个体健壮,群体合理,以充分利用水分、养分和光能,最后获得高产。

关键词: 怎样 计算 树种 种植 密度

怎样计算树种种植密度相关经验

天气预报

最新推荐

页面:/news/view-2497763/ | 耗时:0.2066 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=2497763 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2497763 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2497763 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2690377,111701,2764036,112809,109201,2239021,788957,120783,112102,108234,1047637,1112919,118166,114178,121483,1745018,111491,2788642,117405,114435,115853,1727416,108255,108183,1867127,1051535,231542,109381,3434151,117442) ORDER BY field (ArticleID,2690377,111701,2764036,112809,109201,2239021,788957,120783,112102,108234,1047637,1112919,118166,114178,121483,1745018,111491,2788642,117405,114435,115853,1727416,108255,108183,1867127,1051535,231542,109381,3434151,117442)