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为有效掌握不同氮气浓度下氮气气调储粮的抑杀虫效果,我公司中心粮库选定90%、95%、98%三种浓度进行研究试验,结果发现,90%浓度在高温季节来临前能有效抑制害虫生长,适用于当年要轮出的储备粮;95%浓度能有效抑制害虫生长,保证全年无害虫发生;98%浓度能有效杀死一般虫粮中害虫。三种浓度下首次充氮吨粮成本为0.31元/t、0.48元/t、0.61元/t。
In order to effectively control the depressant and insecticidal effect of nitrogen-based gas storage grains under different nitrogen concentrations, the three selected concentrations of 90%, 95% and 98% of the grain depot of our company were studied and tested. It was found that 90% of the concentration was coming in the hot season Before can effectively inhibit the growth of pests, suitable for the current rotation of the reserve grain; 95% concentration can effectively inhibit the growth of pests to ensure pest free throughout the year; 98% concentration can effectively kill insects in general pests. The three nitrogen concentrations for the first time the cost of grain is 0.31 yuan / t, 0.48 yuan / t, 0.61 yuan / t.