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一、前言从以前几次的試驗已知糠矽粉对于儲粮害虫的致死作用是肯定的。糠矽粉在倉庫作業上的实际应用方法不外二种,一种是直接与籽粒摻拌,另一种是复盖在粮堆的表面,阻止害虫入侵,而保儲粮安全。在前几次的試驗中已經得到这样的結果,以順昌石粉厂雷蒙磨机研磨二次的糠矽粉的1％濃度直接与米摻拌在一起,在相对濕度77％的情現下,經20日能將谷蠹全部杀死;如在相对濕度84％之下,經32日也能全部杀死。由此可知糠矽粉直接与米粒摻合是有良好杀虫作用的,这在种用籽粒的防虫上具有非常重
I. Preface It has been known from the previous experiments that the lethal effect of chalcopyrite on stored grain pests is certain. Silica fume operations in the warehouse on the practical application of no more than two kinds, one is directly mixed with the grain, and the other is covered in the surface of the grain piles to prevent the invasion of pests, and grain storage and security. In the previous trials have been such a result, with Shichang stone mill Raymond mill grinding secondary silicon powder 1% concentration directly mixed with rice, in the presence of 77% relative humidity, After 20 days will be able to kill all the moth beetles; such as under 84% relative humidity, the 32 can also be completely killed. It can be seen that the direct blending of rice bran with silicon powder has a good insecticidal effect, which is insecticidal on the seeds with very heavy