Reducing Post Harvest Loss of Maize by Manufacturing and Introducing of Air Tight Silos Grain Storage in Selected Areas of Tigray, Ethiopia

The economy of Ethiopians depends chiefly on agriculture. The major staple grains are the most important field crops and the chief element in the diet of most Ethiopians. Maize is the largest and most productive crop in Ethiopia. In 2007/08, maize production was 4.2 million tons, 40 percent higher than teff, 56 percent higher than sorghum, and 75 percent higher than wheat production. Postharvest losses are major problem in enhancement of maize production. The main controlling mechanism to avoid these losses is using appropriate grain storage. As FAO introduced stated household metal silo is a key post-harvest technology in the fight against hunger and for food security. The house hold air tight metal silos generally hold between 100 and 3 000 kilos. The objective of this activity is to minimize post-harvest losses of maize grains by introducing this airtight silos in selected wordea’s of the region.

Different air tight silos were manufactured according the SDC Manual for Manufacturing Metal Silos for Grain Storage in MAMRERC workshop. Preliminary test was conducted to check air leakage and strength of welding of the silo. Farmers were selected based on the willingness and resource they have. Weight loss, relative humidity, temperature, moisture content, count breakage from 1000kernel and insects occurred and farmer’s perception was collected in compiring with tradition silo and plastic bag.

From these the air tight silo has low weight loss form 125gm initially and after recorded for six months the weight reduces to 122.6, 114.35, and 112.25gms respectivly. The moisture of maize grain decrease from 13% have different in the three containers 26.48, 28.72 and 27 and difference of -0.52, 1.72, and 0 and average Relative humidity's are 7.96, 4.96, and 3.96 for metal silo, traditional Gottera and plastic bag respectively. The counted and damaged from 1000 kernels are high in plastic bag and traditional silo. the farmers perception in relative advantage and characteristic of the silo are good.