New Technology of Grain Pest Control
Mitsubishi heavy Industries of Japan has developed a technology to kill rice and other grains by increasing or decreasing the pressure of carbon dioxide. Compared with traditional methods, the new technology does less damage to the environment and less harm to the human body. This technique makes use of the principle that sudden decompression under high pressure will cause an object to expand. The specific method is to put the rice in the treatment tank and pass through the carbon dioxide. Carbon dioxide penetrates into the adults, larvae and eggs of the pests, but hardly into the grains. Then the pressure in the tank is raised to 30 pressure, which lasts for a few minutes and then suddenly decompresses. At this time, almost all the pests will die as a result of physical expansion and rupture, the eggs will be destroyed, and the grain will not be affected.
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Notes on the use of bacterial biological insecticides
In order to achieve the best insecticidal effect in the use of pesticides to control crop pests, we must select the right insecticides and use them in an appropriate period, and at the same time, according to the three factors that affect the efficacy, we should pay attention to solve the two problems which are easy to be ignored, such as timely application and delivery. 1. Three factors that affect the efficacy. 1. Climate. Shi.
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How to rett biogas rot phosphate fertilizer
The amount of phosphorus uptake of rape was the highest at bolting stage, but the effect of phosphorus utilization and yield increase was the best at seedling stage. Because phosphorus can be used repeatedly in rape, the earlier the absorption period is, the greater the efficiency is. The application of phosphate fertilizer can promote the growth stage, 2-4 days earlier in seedling stage, 2-6 days in bolting stage, and 1-2 days in mature stage.
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