将一种作物与另一种作物同时种在一块地里,一种作物因本身散发着一股异味,制约着另一种作物的一种或几种害虫的发生,这叫异物相克。利用异物相克进行作物搭配,既可节省预防病虫害的开支,又可夺取高产。下面简介几种搭配方法。一、在大豆地边种上蓖麻,豆金龟子因怕蓖麻的气味,便会避而远之。 A crop and another crop at the same time planted together, a crop exudes an odor due to itself, restricting the occurrence of one or more pests of another crop, which is called foreign g. The use of foreign substances in grams with crops, can save pests and diseases to prevent spending, but also to seize high yield. Here are some ways to match. First, planted on the soybean side of castor beans, bean beetle because of the fear of castor smell, it will avoid the distance.