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1980年,我区曾与商业部四川粮食贮藏科研所合作,对在地下仓深层粮堆出现温差的情况下,利用粮堆中对流气体,进行低剂量磷化铝熏蒸防治贮粮害虫,取得了较好的结果。但对地下仓粮温处于平衡的低温状态下,能否利用低剂量磷化氢熏蒸、有效地防治贮粮害虫呢?为此,于1981年进行了此项试验,现报告如下:一、实验方法1.实验仓条件:(1)大荔县汉村粮站的四号地下仓(以后简称四号仓)。仓容200万斤、仓深13.2米、存小麦Zn万斤,粮堆深n米。(2)富平县墩台根站六号仓(以下简称六号仓):仓容300万斤,仓深28.7米,存小麦340万斤,粮堆深16米。2.药剂及用量:粮食贮藏1983(3) 四号仓体积为1752m’,其中粮堆体积
In 1980, our district cooperated with Sichuan Grain Storage Research Institute of the Ministry of Commerce to control the storage of pests by low-dose aluminum phosphide fumigation using the convective gas in grain piles under the condition of temperature difference in deep piles of underground storage. Better results. However, under the condition that the grain temperature of the underground warehouse is in a state of equilibrium at a low temperature, whether low-dose phosphine fumigation can be used to effectively control stored grain pests? To this end, the test was conducted in 1981 and is reported as follows: Method 1. Experimental conditions: (1) Dali County Hancun grain station on the 4th underground storage (hereinafter referred to as the fourth position). Cang Rong 2 million pounds, 13.2 meters deep warehouse, stored wheat Zn jin, grain depth n meters. (2) No. 6 Bin of Fuping County Station Station (hereinafter referred to as the No. 6 warehouse): storage capacity of 3 million kg, depth of 28.7 meters, 3.4 million pounds of stored wheat, grain depth 16 meters. 2. Pharmacy and dosage: grain storage 1983 (3) the fourth warehouse volume of 1752m ’, of which the volume of grain piles