There were no significantly effect on the leaf-stem ratio (LS) and early water content of alfalfa among different mixed trace element fertilizer treatments in field trail.

不同微肥配方对田间基施紫花苜蓿叶茎比和初水分含量影响差异不显著。

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It's community structure is rhomboid structure, the stem-leaf ratio will decrease with increasing the height of plant.

不同苜蓿品种的群落结构多为菱形。同化系统与非同化系统的比值随高度的增加而减少。

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