This experiment showed thatcharacters of rice population were influenced by the ratio of row spacing to intrarow spacing( RS/IS) under the same planting density.

Effects of row and plant spacing on winter wheat flag leaf sucrose metabolism and grain yield

With japonica rice Wuyunjing 7 and indica rice Fengyouxiangzhan as test materials,effects of row-spacing on morphological and eco-physiological characteristics of rice were studied.

The experimental result showed the measures to obtain higher volume of timbers,higher economic efficiency,and stronger tolerance ability could be as follows: suitable site condition,the density of 1665 trees·hm~(-2),and planting spacing 2×3m or 1.