有许多草含有大量的硅元素。植物学家认为硅可以保护水稻免受害虫和疾病的危害。 一般地说植物含硅越多,就越能抵抗伤害。例如,水稻的木髓内部沉积大量的硅,就可阻止二化螟虫幼虫在那儿移动和发展。硅也能破坏稻瘟病菌(Pyricularia oryzae)的化学组织,使该病不能在叶子上渗透和传播。北威尔斯大学 A lot of grass contains a lot of silicon. Botanists believe that silicon can protect rice from pests and diseases. In general, the more silicon a plant contains, the more it resists damage. For example, large amounts of silicon deposited inside the pith of rice can prevent the stem borer larvae from moving and developing there. Silicon also destroys the chemical structure of Pyricularia oryzae so that the disease does not penetrate and spread on the leaves. North Wales University