玉米施用硅肥的增产效果及其对群体质量的影响

Increasing Production Efficiency of Using Si and the Influence on Quality of Population in Maize

试验表明 ,玉米上施用硅肥具有促进叶片生长 ,改善叶系构成 ;促进茎秆发育 ,提高抗倒能力 ;促进气生根发生 ,增强吸收能力 ;促进果穗发育 ,增加粒数 ;提高吐丝后群体的干物质积累能力等作用 ,使群体质量得到明显改善 ,增产达 5 .2 7%～ 19.5 2 %。

The result showed: Using Si fertilizer at maize can promote leaf grow and improve constitution of leaf system, accelerate development of stems and strengthen the resistance to lodging, impel aerial root occur and enhance its absorbing capacity, promote the ear growth and raise number of grains, raise accumulated dry matter after spinning etc, obviously improve quality of population. The grain yield will increase by 5.27%～19 52%