Pit, trench, bunker and tower silos are used for ensiling the green fodder. Various types and sizes are used depending upon the availability of green fodder and the convenience of the farmer.

The green fodder is filled in the silo either as such or after chopping and it is well packed to reduce air. Better packing may be obtained by trampling with tractor or bullocks. The top must be covered with dry straw and then sealed with mud plaster or covered by polythene or alkathene sheets. The silage will be ready after 4-6 weeks. A pit size of 20 x 20 x 20 feet is sufficient for 50-55 t of green fodder. One cubic foot of settled silage will weigh about 15 kg.

The rate of utilization of the ensiled material also has a bearing on the size of the silo. Once is opened for feeding, then every day at least half a foot of the material have to be removed to avoid spoilage if the silage.