Farm for killing harm-germina and pests in soil, its preparing technology and using method

Abstract

The present invention relates to a pesticide, in particular, it relates to a pesticide for killing injurious germ and pest in soil, its preparation process and application method. Said pesticide contains (by wt%) 15-70% of calcium cyanamide, 10-75% of calcium oxide and the rest is impurity. Its preparation method includes the following steps: placing calcium carbide, calcium cyanamide and additive into a reaction furnace, introducing nitrogen gas at 1000-1100 deg.C to make azotizing reaction for 18-24 hr so as to obtain the invented finished product. Said pesticide can be used as fungicide, insecticide, weedicide, nematocide and plant growth regulator, etc.

Description

technical field

[0001] The invention relates to a pesticide, in particular to a pesticide for killing harmful germs and pests in soil, a preparation process and a use method thereof. Background technique

[0002] Currently commonly used pesticides are divided into fungicides, insecticides, herbicides, rodenticides, acaricides, nematocides and plant growth regulators according to the control objects, and the original drugs of the above-mentioned different types of pesticides generally cannot To be used directly, it must be processed and formulated into various types of preparations before it can be used. In this way, when farmers use pesticides, on the one hand, they must understand the nature and objects of pests and diseases, and choose corresponding pesticides. Bring a lot of inconvenience. For this reason, many scientific and technical personnel have been dreaming hard to find a broad-spectrum pesticide that can sterilize and kill insects, improve the quality of crops, ...